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HJ 1015.2-2019

Chinese Standard: 'HJ 1015.2-2019'
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Detail Information of HJ 1015.2-2019; HJ1015.2-2019
Description (Translated English): Technical guidelines for environmental impact assessment - Uranium mining and milling decommissioning
Sector / Industry: Environmental Protection Industry Standard
Word Count Estimation: 39,330
Date of Issue: 2019-01-21
Date of Implementation: 2019-04-01
Regulation (derived from): Ministry of Ecology and Environment Announcement No. 3 of 2019


HJ 1015.2-2019
Technical guidelines for environmental impact assessment - Uranium mining and milling decommissioning
Technical Guidelines for Environmental Impact Assessment, Decommissioning of Uranium Mining and Metallurgy
Technical guidelines for environmental impact assessment
-uranium mining and milling decommissioning
National Environmental Protection Standard of the People's Republic
Implementation of.2019-04-01
Ministry of Ecology and Environment released
Published on.2019-01-21
Content
Foreword...II
1 Scope...1
2 Normative references...1
3 Terms and Definitions...1
4 General... 2
5 Engineering analysis of decommissioning...3
6 Environmental Status Survey and Analysis...4
7 Environmental Impact Prediction and Evaluation...6
8 Environmental Management of Decommissioning Management...7
9 Long-term monitoring plan after decommissioning...7
10 Conclusions...7
Appendix A (Normative Appendix) Format and Content of Environmental Impact Report of Decommissioning Projects...8
Appendix B (Normative Appendix) Format and Content of Environmental Impact Report Form for Decommissioning Projects...19
Foreword
To implement the Environmental Protection Law of the People's Republic of China, the Environmental Impact Assessment Law of the People's Republic of China and the Ministry of Environmental Protection
Law of the People's Republic of China on Prevention and Control of Radioactive Pollution, standardizing the environmental impact assessment of uranium mining and metallurgy decommissioning projects, and developing this standard
quasi.
This standard specifies the general principles, contents, methods and technical requirements for the environmental impact assessment of uranium mining and metallurgy decommissioning.
And the requirements for the preparation of environmental impact assessment documents.
This standard is the first release.
Appendix A and Appendix B of this standard are normative appendices.
This standard was formulated by the Department of Environmental Protection's Radiation Source Safety Supervision Department.
This standard was drafted. China Radiation Protection Research Institute.
This standard is approved by the Ministry of Ecology and Environment on January 21,.2019.
This standard has been implemented since April 1,.2019.
This standard is explained by the Ministry of Ecology and Environment.
Technical Guidelines for Environmental Impact Assessment, Decommissioning of Uranium Mining and Metallurgy
1 Scope of application
This standard specifies the general principles, contents, methods and technical requirements for the environmental impact assessment of uranium mining and metallurgy decommissioning.
And the requirements for the preparation of environmental impact assessment documents.
This standard applies to the environmental impact assessment of uranium mining and metallurgy decommissioning projects within the People's Republic of China, uranium ore
The environmental impact assessment of the quality survey decommissioning project can be carried out with reference to this standard.
2 Normative references
The contents of this standard refer to the terms in the following documents. For undated references, the valid version applies.
In this standard.
GB 11215 Nuclear radiation environmental quality assessment general provisions
GB 14586 Uranium mining and metallurgical facilities decommissioning environmental management technical regulations
GB 15848 uranium mine geological exploration radiation protection and environmental protection regulations
GB 18871 Basic standards for ionizing radiation protection and radiation source safety
GB 23726 uranium mining and metallurgy radiation environmental monitoring regulations
GB 23727 Regulations on radiation protection and environmental protection for uranium mining and metallurgy
HJ 2.1 General Outline of Technical Guidelines for Environmental Impact Assessment of Construction Projects
HJ 2.2 Technical Guidelines for Environmental Impact Assessment Atmospheric Environment
HJ 2.3 Environmental Impact Assessment Technical Guidelines Surface Water Environment
HJ 2.4 Environmental Impact Assessment Technical Guidelines Acoustic Environment
HJ 19 Environmental Impact Assessment Technical Guidelines Ecological Impact
HJ 610 Environmental Impact Assessment Technical Guidelines Groundwater Environment
HJ 964 Technical Guidelines for Environmental Impact Assessment Soil Environment (Trial)
HJ/T 61 Radiation Environmental Monitoring Technical Specification
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1
Uranium mining and milling
Abbreviation for mining, beneficiation and smelting processes or treatment activities of uranium-containing radionuclide ores.
3.2
Uranium geological prospecting
In order to find and identify uranium resources, use various exploration methods to understand the geological conditions of the underground and understand uranium mineralization.
Conditions and environment, comprehensive evaluation of uranium mineralization prospects, identification of favorable areas, identification of uranium ore belts, exploration of uranium mine scale, and clearing
The process of containing uranium layer conditions and output capacity.
3.3
Decommissioning
After uranium mining and metallurgy facilities have ceased to serve after the end of their life or other reasons, they are fully considering protecting workers and the public.
Various activities carried out under the premise of health and safety and environmental protection.
3.4
Tailings pond
A special facility for storing ore and slime in the tailings slurry of the water and metallurgical plant, which is formed by the dam and has drainage (Hong)
The structure is used to exclude tailings from the reservoir to clarify water and rainwater.
3.5
Dry tailings pond
A special place for stacking and storing dry tailings and slag discharged from the water and metallurgical plant, which is formed by the dam intercepting the ravine (valley)
There are flood control facilities that drain rainstorms.
3.6
Restricted open or use restricted release or use
Equipment, equipment, buildings, and sites are restricted from being opened or used due to their potential radiological hazards.
This restriction usually prohibits certain activities (such as building a house, planting or harvesting specific food, destructive or damaged).
Sexual development and its behavior in the food chain, etc.) or stipulate a specific way (such as specifying that a certain material can only be located in a certain
Agreement within the cycle or reuse.
3.7
Unrestricted open or use unrestricted release or use
Equipment, equipment, buildings and sites with sufficiently low levels of pollution or potential pollution are not subject to any radiological limits
Open or use.
4 General
4.1 Basic principles
The environmental impact assessment work classification of the uranium mining and metallurgy decommissioning project shall be in accordance with the current national relevant classification requirements.
determine.
Explain the governance objectives after decommissioning, clarify the depth of decommissioning that each facility needs to achieve, and give decommissioning treatment
Projects that are restricted or unrestricted to open or use, as well as specific restrictions on opening or using the project.
The format and content of the environmental impact report of the uranium mining and metallurgy decommissioning project are shown in Appendix A, the uranium geological exploration decommissioning project ring
See Appendix B for the format and content of the Environmental Impact Report Form. Among them, the preparation unit and the staff of the establishment are in accordance with the construction project
The uniform format of the impact assessment document is required to be implemented.
4.2 Environmental Impact Identification and Evaluation Factors Screening
Based on the environmental condition investigation and engineering analysis, combined with the decommissioning process of the uranium mining and metallurgy decommissioning project and the final state of decommissioning
Features to identify environmental impacts.
According to the characteristics of the decommissioning project, the main characteristics of the environmental impact, combined with the environmental functional requirements of the region, environmental protection
Objectives, evaluation criteria and environmental constraints, screening to determine the evaluation factors in the decommissioning process and in the final state of decommissioning.
4.3 Determination of evaluation criteria
4.3.1 Dose Constraint Value and Dose Control Value
The public personal dose limit shall comply with the provisions of GB 18871 and be based on the optimization of radiation protection.
The public dose constraint value during the governance process and the final state of decommissioning.
Give the public dose control value under accident conditions.
4.3.2 Decommissioning management limits and management target values
The limits for each radionuclide emission in the liquid effluent are given in accordance with the limits specified in GB 23727.
Determine the relevant management target values for decommissioning, including 氡 precipitation rate, surface pollution control level, soil pollution
Residue level, gamma radiation air absorption dose rate, groundwater environment restoration target value and surface water environment restoration target value.
4.3.3 Non-radioactive environmental quality standards and pollutant discharge standards
The non-radioactive environmental quality assessment shall be determined according to the environmental function zoning of the area where the uranium mining and metallurgy decommissioning project is located.
Environmental quality standards for environmental factors and corresponding pollutant discharge standards; no clear environmental functions for the project site
For the zoning, the implementation standards shall be confirmed by the competent department of ecological environment where the project is located.
4.4 Environmental impact assessment scope
4.4.1 Radiation environment
The scope of radiation environmental impact assessment is generally based on the airborne pollution source that has the greatest impact on the surrounding residents.
The area is 20km in diameter. If the source of pollution between the various areas of the project is far away, the evaluation range determined above is not enough.
Covering the possible key resident groups, the assessment should be based on the main discharge points of each region and the radius of 20km.
Price range. The scope of groundwater assessment is determined by the type of facility and site characteristics. Decommissioning of in-situ uranium mining should focus on decommissioning
Note groundwater evaluation.
The sub-area division in the radiation environmental impact assessment is within the range of 1km, 2km, 3km, 5km,
10km, 20km are divided into concentric circles, and these concentric circles are divided into 22.5° segments, which are drawn from the north to the left.
The segment is divided into 11.25°, which is divided into 96 evaluation sub-areas, and the sub-area division map of the evaluation range is attached.
4.4.2 Non-radioactive environment
The evaluation scope of non-radioactive environmental elements shall be in accordance with HJ 2.2, HJ 2.3, HJ 2.4, HJ 19, HJ 610, respectively.
The environmental impact assessment work level specified in HJ 964 determines the scope of evaluation.
4.5 Determination of environmental protection objectives
Describe the protection objectives and functions of each environmental element in the form of a chart, and the relative positional relationship with the evaluation center.
Environmental protection requirements, etc.
5 Engineering analysis of decommissioning
5.1 Overview of decommissioning facilities
Briefly describe the history, scale, operation history, events or accidents during the operation of decommissioning facilities, and mining
Metallurgical process and three waste treatment processes, wastewater discharge methods and transportation of receiving water, ore (waste rock, tailings, tailings)
Route, mode of transport, cause of shutdown, legacy facilities after cessation of general uranium mining and metallurgy facilities (final production) and temporary storage of waste
Status and so on.
5.2 Decommissioning source survey
Briefly explain the scope of the decommissioning project, and give the scope of the source project survey, indicating the determination of decommissioning projects and source surveys
The principle of the program.
Explain the monitoring unit, investigation time and investigation plan of the source item survey, and give the monitoring layout chart and the investigation result, saying
The status of pollution and the level of pollution.
Describe the facilities that need to be managed and how to determine them.
5.3 Decommissioning Governance
5.3.1 Governance plan
Explain the influencing factors and basis for the consideration of the decommissioning management plan, give the overall plan for decommissioning, and
The comparison of governance programs is described.
Detailed description of tailings (slag), waste rock, water and metallurgical facilities, open pits, pits, evaporation ponds, industrial fields
Various types of uranium mining and metallurgy facilities such as land and ground mining sites, and decommissioning treatment plans for contaminated sites, analyze the feasibility of the treatment plan.
Describe the final state of decommissioning for each decommissioning project after the implementation of the decommissioning project. The final state of decommissioning is divided into unrestricted opening or use
And there are restrictions on opening or using both types.
5.3.2 Decommissioning Waste Management
Explain the generation, treatment and discharge of waste gas, waste liquid and solid waste in the process of decommissioning and decommissioning
condition. Explain the production links, production quantities and emissions of various pollutants.
From the aspects of management and technical measures, the minimization of waste, the centralized disposal of waste, and the realization of site-free
Limit the considerations of openness or use.
5.3.3 New construction and expansion facilities in the decommissioning project
If the decommissioning project involves new construction, expansion of waste treatment and disposal facilities, such as waste rock yard, tailings (slag) storage and waste
Water treatment facilities, etc. shall be evaluated in accordance with the relevant requirements of new construction and expansion projects. Site selection process for new facilities and
The construction plan is selected and detailed.
5.4 Environmental Protection Measures and Their Feasibility Argument
Detailed description of the specific pollution prevention, ecological protection and other environmental protection measures to be taken in the process of decommissioning and after decommissioning
Protective measures and environmental risk prevention measures.
Describe the design and processing capacity and treatment efficiency of environmental protection facilities, and describe the storage, treatment and disposal of solid waste.
Apply and analyze its capabilities.
For environmental protection measures shared with other projects, the ability to store, handle and dispose of waste should be analyzed.
For example, the remaining storage capacity of the tailings (slag) library.
Analyze and demonstrate the technical feasibility, economic rationality, reliability of long-term stable operation, and satisfaction of the proposed measures
Accessibility of state protection and recovery effects. The effectiveness of various measures should be judged by the actual operation of similar or identical measures.
Based on the results, engineering experimental data can be provided without actual operational experience.
6 Environmental status survey and analysis
6.1 Environmental Status Survey Principles
Environmental status surveys generally use the data collection method and the on-site investigation method. The basic information given in the report should be reviewed
Use later and explain the source of the data.
6.2 Survey of regional natural and social environment
6.2.1 Regional Natural Environment Survey
a) Geographic location
Briefly introduce the geographical location of the project location and give the location map of the site.
b) topography
Explain the topographical features of the area where the project is located.
c) Climate and weather
Briefly describe the main climate types, characteristics, etc. of the project area, and give a representative meteorological station near the site.
The conventional meteorological parameters required by the relevant guidelines provide information on meteorological stations.
d) geology
Outline the main features of the regional geology and site geology where the decommissioning project is located.
e) Surface water hydrological characteristics
Briefly describe the hydrological characteristics of the main surface water bodies within the evaluation scope, the division of the water system, and the surface water system
Figure. Explain the water environment function zoning of the receiving water body, and the list gives the corresponding hydrological parameters and explains the seasonal changes.
Describe the basic characteristics of the water conservancy project within a certain range of the upstream and downstream of the site and the operation of the dispatch.
f) Groundwater hydrological characteristics
Describe the hydrogeological conditions of the project area and site, the hydraulic connection between different aquifers, groundwater
Type, water level, flow rate or permeability coefficient, recharge, runoff and discharge conditions, groundwater dew point, etc. Key description and
Groundwater conditions related to the project.
g) Land and water use
Describe the current status of land and water use within the scope of the evaluation.
h) Ecology and resource development and utilization
Briefly describe the ecological functional zoning, terrestrial and aquatic ecological conditions in the area where the decommissioning project is located, and ecological sensitivity
The relative position and distance of the target and the site.
Briefly explain the main natural resources and development and utilization within the scope of evaluation, and explain the interaction between the project and the project
ring.
6.2.2 Social Environmental Survey
a) Population distribution
Based on the latest national and regional censuses, combined with field surveys, people in each sub-region of the evaluation area are given.
The distribution of the population gives the natural population growth rate, the population of the year of evaluation, and the proportion or population of each age group. give
Distance, location and population of residential areas and evaluation centers within 3km, as well as schools, hospitals, nursing homes, enterprises
The population of the institution.
b) Residents' living habits and dietary structure
The list gives the recipes, annual consumption and their share from the evaluation area for each age group, indicating the residents’ living habits.
Sex.
6.3 Environmental Investigation and Analysis
6.3.1 Radiation environment background
Give the background of the radiation environment before the production operation of the decommissioning facilities, including the radiation in natural penetrating radiation and environmental media
The specific activity, the survey time, the monitoring unit, the survey plan and the survey results. For the lack of radiation environment before the construction of mine
The site of the bottom data should give the value of the reference background or control point of the area.
6.3.2 Environmental Status Survey
Environmental status surveys include surveys of current environmental conditions and surveys of current non-radioactive environments.
The investigation of the radiation environment status of the uranium mining and metallurgy decommissioning project is carried out in accordance with the requirements of GB 23726 and HJ/T 61. Non-radiation
Sexual environment status survey, investigation, investigation and evaluation based on non-radioactive pollutants discharged before project decommissioning
According to the relevant provisions of HJ 2.2, HJ 2.3, HJ 2.4, HJ 19, HJ 610, HJ 964. Can collect existing monitoring numbers
According to the data, if the existing data does not meet the requirements, the actual content of the missing items should be measured.
The monitoring plan is given according to the list of environmental elements, and the environmental monitoring layout map is given.
The monitoring results are given and analyzed, and the abnormal data is analyzed. According to the survey results, the environment is now
Evaluation.
7 Environmental Impact Prediction and Evaluation
7.1 Environmental impact before decommissioning
Analyze the radioactive and non-radioactive environmental factors and their effects before decommissioning.
The current situation is evaluated based on the survey results of the environmental status before decommissioning.
Explain the airborne and liquid radioactive source items before decommissioning. Explain the various ways of producing exposure to the public, and use the text
Word and schematic representation.
The list gives the public individual effective doses and collective doses of different age groups and different irradiation pathways in each sub-area.
The requirements for dose estimation refer to 7.3. Give key resident groups, key nuclides and key exposure pathways; give decommissioning before treatment
The conclusion of the radiation environmental impact assessment. The decommissioning of the in-situ uranium mining project should focus on the environmental impact of the groundwater route and evaluate
The time range is from the closure of the in-situ uranium mining project to the completion of decommissioning.
Give the conclusion of non-radioactive environmental impact assessment before decommissioning.
Comprehensive status assessment and environmental impact assessment give the radiation environment and non-radioactive environmental impact assessment before decommissioning
in conclusion.
7.2 Environmental impacts during the implementation of decommissioning governance
Analyze the radioactive and non-radioactive environmental factors and their effects during the implementation of decommissioning. Analysis and determination
The radioactive source items in the implementation process are evaluated and dose estimates are made. The requirements for dose estimation are referred to 7.3. Description to be taken
Non-radioactive environmental protection measures to analyze whether non-radioactive pollutants can meet the standard discharge, indicating whether the environmental impact is acceptable
To accept.
7.3 Environmental impacts after decommissioning
According to the situation of decommissioning, the source items still exist after the completion of the decommissioning project are analyzed, and the dose estimation is carried out.
Dose estimates mainly include airborne pathways, surface water pathways and groundwater pathways.
a) The dose estimation of the airborne pathway should give the annual average concentration of nuclide in the air in each sub-area and be effective for individuals of all age groups.
Dosage and collective dose.
b) The dose estimation of the surface water pathway should give the average annual concentration of nuclide in the river section at different distances downstream of the discharge outlet.
Individual effective doses and collective doses for each age group in Guanzi District.
c) The groundwater route should give the extent, extent and maximum migration distance of the nuclide at different time periods after decommissioning
Departure, and explain the law of changes in the concentration of nuclide over time. In the scope of evaluation, when there is water body downstream of groundwater,
The maximum nuclides concentration at the downstream water intake point and the resulting effective individual dose should be given. Clearly estimate models, methods, and parameters
Based on the basis and source, analyze its applicability.
Give the radiation environmental impact after decommissioning, and analyze and compare the changes in radiation effects.
Analyze the non-radioactive environmental impact factors after decommissioning, and give the non-radioactive environmental impact after decommissioning.
Analyze and compare changes in non-radioactive environmental impacts.
For the adoption of measures such as building a reservoir, building a dam, and covering landfills, appropriate environmental risk assessments should be carried out.
7.4 Environmental impact of events/accidents
According to the decommissioning design documents such as the decommissioning management implementation plan, after the decommissioning governance process and the implementation of the decommissioning project,
Possible events/accidents.
Analyze the cause of the incident/accident, give the event/accident scene, release the source item, design prevention and mitigation measures,
Analyze its potential impacts and consequences on decommissioning projects, give potential exposure to the public, and estimate the consequences.
Based on the event/accident estimation results, the environmental impact conclusions of the event/accident are given.
8 Environmental management of decommissioning governance
8.1 Environmental Management Agency
Explain the main duties and systems of the uranium mining and metallurgy decommissioning environmental management agency.
8.2 Contaminants and Environmental Management Plan
The pollutant discharge list in the process of decommissioning and decommissioning is given separately, and the management of pollutant discharge is clarified.
Claim.
Give targeted and specific operational environmental management plans in the process of decommissioning and decommissioning, and clarify each
Construction, operation and maintenance cost protection plan for environmental protection facilities and measures.
8.3 Monitoring plan
Explain the purpose and monitoring principles of monitoring work in the process of decommissioning, and provide monitoring during the process of decommissioning
Project and layout situation.
Explain the principles and requirements for the distribution of final effluent monitoring and environmental monitoring, and provide monitoring media and monitoring projects.
And monitoring the distribution.
9 Long-term monitoring plan after decommissioning
For long-term guardianship after decommissioning, the purpose of the long-term guardianship and the subject of custody and duties shall be stated.
Responsible for the situation of the guardian and the equipment and equipment. Give the basics of long-term monitoring after the completion of decommissioning
Principles and requirements, explain the monitoring content, give the corresponding monitoring methods and frequency. Give the environment under the circumstances of the accident
Urgent monitoring and tracking of monitoring requirements.
10 Conclusion
10.1 Conclusion
Give summary conclusions on the overall content of the report. Explain the basic situation of the decommissioning project, the source project survey results,
Decommissioning management plan, environmental impact assessment conclusions, main conclusions of public participation, monitoring plan for decommissioning governance and long-term
Guardianship and other content, from the perspective of environmental protection, to determine whether the project is feasible.
Major environmental constraints, unacceptable environmental impacts or uncontrollable environmental risks, unsatisfied decommissioning projects
Long-term ecological protection requirements, projects with outstanding environmental problems and failure to meet management requirements, it should be proposed that environmental impact is not feasible
The conclusion.
10.2 Recommendation
The evaluation unit made corresponding suggestions on the problems existing in the environmental protection of the project.
Appendix A
(normative appendix)
Format and content of the environmental impact report of the decommissioning project
A.1 General
A.1.1 Basic information of the project
Brief description of project name, nature, implementation unit, location, scale, content, total investment, schedule, overall objectives
And stage goals, etc.
A.1.2 Reasons and objectives of decommissioning
A.1.2.1 Reasons for decommissioning
Explain why the project was decommissioned.
A.1.2.2 Decommissioning Governance Purpose
Explain the purpose of decommissioning governance.
A.1.3 Decommissioning scope and depth
A.1.3.1 Decommissioning Governance Content
Given the areas covered by decommissioning, the list gives various types of decommissioning facilities and contaminated sites.
A.1.3.2 Decommissioning Governance Depth
Explain the depth of decommissioning governance, and give the projects that have been restricted or unrestricted to open or use after decommissioning.
And specific restrictions on opening or using the project.
A.1.4 Basis for preparation
A.1.4.1 Regulations and standards
State the national, industry and local major regulations and standards on which the environmental impact assessment is based.
A.1.4.2 Related documents
List project documents, project approvals, and main technical documents based on them.
A.1.5 Evaluation scope and sub-area division
The evaluation range of each environmental element, the sub-area division method, and the sub-area division diagram will be described.
A.1.6 Evaluation factor
According to the two stages of decommissioning and final stage of decommissioning, the environmental impact factors are identified.
Identify the environmental impact factors of each environmental element, and determine the evaluation factor based on the characteristics of the decommissioning project.
A.1.7 Evaluation of control indicators and management limits
A.1.7.1 dose constraint value and dose control value
The public personal dose limit shall comply with the provisions of GB 18871 and be based on the optimization of radiation protection.
The public dose constraint value during the governance process and the final state of decommissioning.
Give the public dose control value under accident conditions.
A.1.7.2 Limits of radioactive emission concentration of wastewater
The concentration limits of each radionuclide in the discharged wastewater from the uranium mining and metallurgy decommissioning project are given.
A.1.7.3 Decommissioning management target value
Give 氡 precipitation rate, surface pollution control level, radionuclide residue level in soil, γ radiant air absorber
The management target value of decommissioning management such as the rate of measurement, the target value of groundwater environment restoration, and the target value of surface water environment restoration.
A.1.7.4 Non-radioactive environmental quality standards and pollutant discharge standards
Give environmental quality standards and pollutant discharge standards for non-radioactive pollutants.
A.1.8 Main environmental protection objectives
List the main environmental protection objectives within the scope of evaluation, including environmental protection of the atmosphere, water, soil, sound, ecology, etc.
The goal is to explain the main situation of the environmental protection target and the positional relationship with the evaluation center.
A.2 Overview of the regional environment
A.2.1 Geographic location
Briefly introduce the geographical location of the project, the administrative division, the main traffic conditions, and the distance from nearby towns
Off. Give the location map of the site.
A.2.2 Topography
Explain the topography and geomorphology of the area where the decommissioning project is located, including altitude, topographical features, and landform types.
A.2.3 Climate and weather
Briefly describe the main climate types and characteristics of the project area, and give the representative meteorological stations near the site.
The conventional meteorological parameters required by the guidelines are analyzed and the meteorological parameters are analyzed accordingly.
A.2.4 Geology
Outline the main features of regional geology and site geology where the decommissioning project is located, indicating regional geology and site geology
Relationship. For the new tailings (slag) reservoir project, it should be stated whether the geological conditions of the site selection are suitable for the construction of tailings.
(slag) library.
A.2.5 Hydrology
A.2.5.1 Surface water
Briefly describe the types and basic characteristics of surface water bodies within the scope of assessment, including water size, flow patterns and watersheds.
The profile, relative position of the site, gives a map of the surface water system. Describe in detail the surface waters in the vicinity of the site
This includes the distribution of water systems and catchment areas, as well as the relationship with drainage of decommissioning projects. Explain the water ring of the receiving water body
Environmental function zoning, the list gives the average monthly flow, flow rate, river width, river depth, hydraulic gradient and other waters of the receiving water body from January to December.
Text parameters; if conditions do not allow, at least provide the average flow rate, flow rate, river during the wet season, the flat water period, the dry season
Hydrological parameters such as width, river depth, and hydraulic gradient.
Describe the basic characteristics of the water conservancy project within a certain range above and below the site and the operation of the dispatch.
A.2.5.2 Groundwater
If the environmental impact assessment directly related to groundwater is not carried out, simply describe the hydrological area of the project area.
Quality conditions, including the main features of the aerated zone, aquifer, aquif; groundwater type, water level, flow rate or infiltration system
Number, supply, runoff and excretion conditions.
If groundwater environmental impact assessment is required, the hydraulic connection between different aquifers should be further described.
Characteristics and distribution of layers, physicochemical properties of groundwater, etc.
For the decommissioning of the in-situ uranium mining project, it should also clarify the drinking water source area in the area, the aquifer with water supply significance and
Possible aquifers for potential water supply, should focus on the hydrogeological conditions of the aquifer and the dispersion characteristics of groundwater, water
Geochemical characteristics, hydraulic connection between ore-bearing aquifer and upper and lower aquifer, and dew point of groundwater.
A.2.6 Land and water use
Describe the status of land and water use within the scope of the assessment, and briefly describe the site radius within 3km (including the site)
The status of land and water use in the area).
For the land use description of the land type, according to the environmental impact pathways or elements of the decommissioning project, the main crops are given.
The species and acreage of crops, vegetables and other cash crops.
Diagram and description of the use of receiving water bodies downstream of the facility wastewater discharge. Centralized drinking water should indicate the water intake
The distance and relative position from the discharge port, the amount of drinking water and the number of people drinking. Irrigation water should indicate irrigated area and water
Quantity, irrigation method, variety and yield of irrigated crops, etc.
If groundwater environmental impact assessment is required, groundwater use within 3km radius of groundwater pollution source should also be stated.
The situation, including the centralized industrial and agricultural production water, the location of the drinking water intake, the water intake and the water intake level;
Explain the relationship between water used in life, production, and engineering-related groundwater bodies.
A.2.7 Ecological and resource development and utilization
Briefly explain the ecological function zoning of the area where the decommissioning project is located and the characteristics of the sub-district, protection and construction requirements, etc.
Rong. Ecologically fragile areas should indicate vegetation change, desertification, desertification, land productivity change, and engineering decommissioning.
Changes in the ecological environment.
Briefly describe the terrestrial and aquatic ecology within the scope of the evaluation. Explain the main drinking water source protection zone and nature protection
The relative position and distance of ecologically sensitive targets such as shelters and sites.
Explain the main natural resources and development and utilization within the scope of evaluation, and explain the relative position and distance from the site.
A.2.8 Population distribution
Based on the latest national and regional censuses, combined with field surveys, the list gives the sub-areas within the evaluation area.
The population of the population gives the natural population growth rate of the evaluation area in recent years and predicts the population of the evaluation year.
Provide a sub-area distribution map with a site radius of 3km. The map should indicate the sub-area division, the proposed facility location and residence.
Distribution of the population points; provide a distribution map of the sub-areas with a site radius of 20km. The map should indicate the location and site of the project to be decommissioned.
The location of the main towns around.
Provide the population or proportion of each age group in the evaluation area. The population is divided into four groups according to age. infant group. ≤1
Years old; children group. >1 year old, ≤7 years old; juvenile group.>7 years old, ≤17 years old; adult group.>17 years old.
The list gives the distance, bearing and population of the settlement and the site within a range of 3km from the site radius. Description 3km range
The number of people in schools, hospitals, nursing homes, enterprises and institutions.
A.2.9 Residents' living habits and diet structure
Based on the results of the field survey, the list gives the recipes, annual consumption and their share from the evaluation area for each age group.
Amount, indicating the living habits of residents.
A.3 Overview of decommissioning facilities
A.3.1 Overview of decommissioning facilities
Briefly describe the construction history, scale, operation history, events or accidents during the operation of the decommissioned facilities, and
Reasons for suspension, legacy facilities after shutdown, and current status of waste storage.
A.3.2 Production process during normal production of decommissioned facilities
Describe the mining and smelting process during the normal production and operation of the decommissioning facilities, and give the process flow chart. Give the production of three wastes,
Treatment and emissions, with a focus on wastewater discharge points and receiving water bodies.
Explain the transportation route and transportation mode of ore, waste rock, tailings (slag) and other materials.
A.4 Status of environmental quality
A.4.1 Radiation environment background before production operation
Describe the background investigation of the radiation environment before the production and operation of the decommissioned project, and give the investigation time, monitoring unit, and investigation.
Program and survey results. For sites that lack background information on the radiation environment before construction, the reference background of the area should be given or
The value of the control point.
A.4.2 Status of radiation environment
Give the purpose and investigation content of the investigation of the current situation of the radiation environment.
The monitoring plan is given according to environmental factors, including monitoring items, monitoring points, monitoring frequency, monitoring methods and standards,
Monitoring instruments and detection limits. Give an environmental monitoring layout map. Explain the implementation unit of monitoring, monitoring time, etc. Commission
For monitoring, the qualification of the entrusting unit shall be issued.
The list gives the results of each monitoring and analysis, and analyzes the abnormal data. According to the survey results,
The current status of the radiation environment was evaluated.
A.4.3 Status of non-radioactive environment
Give a non-radioactive environment in the decommissioned project area (including atmosphere, surface water, groundwater, soil, ecology and sound ring)
Status, etc., including the monitoring plan, monitoring points map, monitoring results, evaluation criteria, evaluation conclusions, etc.
A.5 Decommissioning source survey
A.5.1 Source item survey scope
Briefly explain the content of the decommissioning project and give the scope of the source project survey.
A.5.2 Source item survey plan
Briefly describe the source project survey principles, monitoring projects, monitoring instruments and methods, and layout programs.
A.5.3 Source item survey results and decommissioning items
A.5.3.1 Principles for determining decommissioning projects
Describe the principles for determining decommissioning projects.
A.5.3.2 Source item survey results
Explain the source item survey time, monitoring unit and survey object, and give the source item survey and monitoring layout map and survey results.
Explain the status of pollution and the level of pollution.
A.5.3.3 Decommissioning project
According to the monitoring results of the source item survey and the corresponding management limits, as well as the determination principle of decommissioning projects, give the need
Decommissioning governance project.
A.6 Decommissioning Governance
A.6.1 Decommissioning Goals
Explain the treatment objectives of various facilities and contaminated sites in decommissioning projects after decommissioning and environmental remediation, and clarify each
Part of the decommissioning depth that needs to be achieved.
A.6.2 Principles for developing a decommissioning management plan
According to the source project survey results and the decommissioning governance objectives, the influencing factors and factors considered in the formulation of the decommissioning governance plan are explained.
According to the principle.
A.6.3 Decommissioning management plan
Explain the overall plan of the decommissioning project, detailing the tailings (slag) reservoir, waste rock yard, hydrometallurgical plant, open pit, pit
Various facilities such as wellheads, decommissioning treatment plans for contaminated sites, and comparison of treatment options. Simultaneous ring
The analysis of environmental protection and ecological restoration shows the feasibility and rationality of the program.
For projects that require overburden treatment, explain the selected soil covering materials, and give the principle of determining the thickness of the covering soil,
And relevant experimental and theoretical basis for meeting the corresponding management limits.
For the projects that need to be excavated and treated, the basis for determining the amount of excavation and treatment works in the decommissioned projects is given.
The steps of clearing and remediating indicate the temporary storage and final destination of the excavated contaminated soil.
Describe the final state of decommissioning achieved after the implementation of the decommissioning project.
A.6.4 Decommissioning waste management
A.6.4.1 Exhaust gas
Explain the generation, treatment and discharge of exhaust gas during decommissioning and decommissioning. Explain the generation loop of exhaust gas
Section, production method, characteristics of emission sources, types of radionuclides discharged, emission concentrations (precipitation rates), annual emissions, etc.
A.6.4.2 Waste liquid
Describe the waste treatment system, indicating the collection, transportation, storage and disposal of waste during the decommissioning process and the final stage of decommissioning
The ability of the liquid. Explain the production links, production methods, recycling conditions, emission methods, and discharge port positions of various waste liquids.
The list gives the production volume, emission concentration, radionuclide species, emission activity concentration (concentration) of various waste liquids and
Annual emissions, etc.
A.6.4.3 Solid waste
Explain the source, collection, storage, treatment and disposal of various types of solid waste during decommissioning and decommissioning
Program.
A.6.4.4 Waste minimization and centralized disposal
Describe the measures to minimize waste taken during the decommissioning process and the centralized sources to be followed in waste disposal
Then, minimize the consideration of restricted opening or use of the place.
A.6.5 New construction and expansion facilities in decommissioning projects
If the decommissioning project involves new construction, expansion of waste treatment and disposal facilities, such as waste rock yard, tailings (slag) storage and waste
For water treatment facilities, etc., environmental impact assessment shall be carried out in accordance with the relevant requirements for new construction and expansion projects.
A.6.6 Environmental Protection Measures for Decommissioning and Its Feasibility Argument
A.6.6.1 Decommissioning and environmental protection measures
Explain environmental protection measures such as pollution prevention and ecological protection and environmental risk prevention measures to be adopted for decommissioning.
Describe the design and treatment capacity and treatment efficiency of pollution prevention measures, and describe the storage, treatment and disposal of solid waste
And analyze its capabilities. Focus on the analysis, storage and disposal of waste from environmental protection facilities shared with other projects
ability.
In addition to the prevention and control measures for pollutants, other measures are taken to prevent the project from polluting the environment and protecting the ecological environment.
Environmental protection measures, including accident collection pools, monitoring and control, ecological protection and restoration.
A.6.6.2 Decommissioning governance environmental protection measures feasibility demonstration
Analyze and demonstrate the technical feasibility, economic rationality, stable operation and
The reliability of the standard discharge, the accessibility of the ecological protection and recovery effect.
A.7 Environmental impact before decommissioning
A.7.1 Analysis of source items before decommissioning
Explain the parameters of the airborne and liquid effluent source items before decommissioning, including emissions, nuclide composition, emission concentration,
Emissions and their parameters.
A.7.2 Environmental impact pathway
Given the source from the source, through the pollution process, contaminated media, irradiation methods, and ultimately to the human irradiation.
A.7.3 Airborne route dose estimation
The list gives the concentration of nuclide in the air in each sub-area, the individual effective dose and the collective dose for each age group.
Give the corresponding estimation mode and parameters, and clearly estimate the basis and source of the model, method and parameter selection, and analyze
Its applicability.
A.7.4 Estimation of surface water pathway dose
The list gives the concentration of nuclide in the receiving water at different distances downstream of the discharge port, and the relevant sub-areas are effective for each age group.
Dosage and collective dose. The setting of the prediction point should be determined according to the receiving water body and project characteristics.
Give the corresponding estimation mode and parameters, and clearly estimate the basis and source of the model, method and parameter selection, and analyze
Its applicability.
A.7.5 Groundwater route dose estimation
Give the range, extent, maximum migration distance of the nuclide in groundwater, and indicate that the nuclide concentration changes with time.
The law of change. In the scope of evaluation, when there is water use downstream of groundwater, the maximum core of the downstream water intake point should be given.
The concentration of the substance and the effective dose of the individual.
Give the corresponding estimation mode and parameters, and clearly estimate the basis and source of the model, method and parameter selection, and analyze
Its applicability.
The decommissioning of the in-situ uranium mining project should focus on the environmental impact of the groundwater route, and the evaluation time range is from in-situ mining.
After the uranium project is closed, it will be completed and retired.
A.7.6 Dose summary and evaluation
The list gives the public individual effective doses and collective doses of different age groups and different irradiation pathways in each sub-area.
Give the maximum individual effective dose at the location of the gas, the liquid pathway, the various nuclide, each irradiation pathway caused by different years
The dose of the age group and its cont......
Related standard:   HJ 1015.1-2019  HJ 1009-2019
   
 
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