HJ 521-2009_English: PDF (HJ521-2009)
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| HJ 521-2009 | English | 189 |
Add to Cart
|
3 days [Need to translate]
|
Codes for wastewater discharging
| Valid |
HJ 521-2009
|
Standards related to: HJ 521-2009
| Standard ID | HJ 521-2009 (HJ521-2009) | | Description (Translated English) | Codes for wastewater discharging | | Sector / Industry | Environmental Protection Industry Standard | | Classification of Chinese Standard | Z23 | | Classification of International Standard | 13.030.20 | | Word Count Estimation | 7,731 | | Date of Issue | 2009-12-30 | | Date of Implementation | 2010-04-01 | | Quoted Standard | GBJ 125-1989; GB/T 7027; GB/T 10113; HJ/T 416-2007; HJ/T 417-2007 | | Drafting Organization | Department of Environmental Protection Information Center | | Regulation (derived from) | Department of Environmental Protection Notice No. 75 of 2009 | | Summary | This standard specifies the wastewater discharge rule category and code. This standard applies to all levels of environmental protection department rules wastewater discharge information collection, exchange, processing, use, and environmental information systems management. | HJ 521-2009
Codes for wastewater discharging
National Environmental Protection Standard of the People's Republic
Wastewater discharge law code (trial)
Released.2009-12-30
2010-04-01 Implementation
Ministry of Environmental Protection released
Ministry of Environmental Protection
announcement
No. 75 of.2009
In order to implement the Environmental Protection Law of the People's Republic of China and promote the construction of environmental information, we now approve the Wastewater Category Code (Trial).
The six standards are national environmental protection standards and are released.
The standard name and number are as follows.
1. Wastewater Category Code (Trial) (HJ 520-2009);
3. “Type Code of Surface Water Environment Functional Zone (Trial)” (HJ 522-2009);
Fourth, "Drainage Discharge Direction Code" (HJ 523-2009);
V. "Air Pollution Name Code" (HJ 524-2009);
6. "Water Pollutant Name Code" (HJ 525-2009).
The above standards have been implemented since April 1,.2010 and published by the China Environmental Science Press. The standard content can be found on the website of the Ministry of Environmental Protection.
Special announcement.
December 30,.2009
Content
HJ 523-2009 Wastewater Discharge Direction Code.9
Foreword
In order to implement the "Environmental Protection Law of the People's Republic of China", the work of wastewater treatment and management is guaranteed to be carried out in an orderly manner.
Classes and codes to develop this standard.
This standard specifies the type of wastewater discharge law and the corresponding code.
This standard is the first release.
This standard was formulated by the Science and Technology Standards Department of the Ministry of Environmental Protection.
This standard was drafted. Information Center of the Ministry of Environmental Protection, Beijing Idea Innovation Technology Co., Ltd.
This standard was approved by the Ministry of Environmental Protection on December 30,.2009.
This standard has been implemented since April 1,.2010.
This standard is explained by the Ministry of Environmental Protection.
Wastewater discharge code
1 Scope of application
This standard specifies the classification and code of wastewater discharge laws.
This standard is applicable to the collection, exchange, processing, use and environmental information system construction of wastewater discharge laws of environmental protection departments at all levels.
Management work.
2 Normative references
The contents of this standard refer to the terms in the following documents. For undated references, the valid version applies to this standard.
GB J 125-89 Basic terminology standard for water supply and drainage design
GB/T 7027 Basic principles and methods of information classification and coding
GB/T 10113 General terminology for classification and coding
HJ/T 416-2007 Environmental Information Terminology
HJ/T 417-2007 Environmental Information Classification and Code
3 Terms and definitions
Terms and definitions established in GB J 125-89, GB/T 10113-2003, HJ/T 416-2007 and HJ/T 417-2007, and
The following terms and definitions apply to this standard.
3.1 Wastewater discharge rules
The relationship between the various discharge states of the wastewater during the inspection period (one year). Monitoring of wastewater discharge status indicators by relevant state
Test technical specifications are implemented. The inspection period is not included in the inspection period.
3.2 (with) regular regular
It refers to the repeated connection between the various discharge states (flows) of wastewater, and its changing situation has certain inevitability.
3.3 Irregular irregular
It means that the change state of each discharge state (flow rate) of wastewater is not inevitable, and the next state cannot be foreseen.
3.4 continuous continuous
It means that the wastewater flow rate is always greater than zero.
3.5 Intermittent Intermittent
Refers to the conversion of wastewater flow between 0 and non-zero.
3.6 stable stable
Refers to the discharge state where the flow has a relative standard deviation of no more than 20%.
The relative standard deviation calculation formula is.
( )
1RSD 100%
x X
−= ×
Where. 1
==
Xi--Check the ith flow monitoring value during the period;
n--The number of inspections during the inspection period shall be no less than the number of times reported in the Declaration Report on Emission of Pollutants.
3.7 unstable unstable
Refers to the discharge state where the flow has a relative standard deviation of more than 20%.
3.8 periodic periodical
Change from any emission state, after a period of time (cycle) or an integral multiple of this time, always return to the beginning
State and repeat the original changes.
3.9 Impact type impactive
Wastewater discharge caused by unexpected events is unpredictable, such as heavy rain or sudden accidents.
4 Classification principles
4.1 Scientific principles
According to the key indicator of wastewater discharge status--flow, the classification of wastewater discharge law is divided, and the time dimension of wastewater discharge law is taken into account.
4.2 Systematic principles
The wastewater discharge law will be systematically arranged in a certain order to form a reasonable scientific classification system.
4.3 The principle of scalability
Taking into account the business development of wastewater discharge, water pollution prevention and management, the wastewater discharge law category sets the containment category and reserves space to
Ensure that the classification system has certain flexibility, and at the same time create conditions for the extension and refinement of the classification system.
4.4 Compatibility Principle
It is consistent with existing relevant national and industry standards.
4.5 Comprehensive practical principles
The classification of wastewater discharge laws is based on the overall requirements for classification of wastewater discharge laws, and it is recommended to meet pollution source supervision and sewage.
The business management needs of emission control are in line with the actual needs of environmental statistics, pollution declaration and registration, and total emission reduction control.
5 Classification methods
5.1 Basic methods
The basic classification method of this standard follows the requirements and requirements of GB/T 7027-2002.
5.2 Classification method of wastewater discharge law
The classification of wastewater discharge is classified by mixed classification. Combined with the actual business work of water pollution prevention and management, from the perspective of wastewater discharge flow
The wastewater discharge law is described, and then the surface classification method is adopted according to the needs of the sub-divisions; the line classification method is used to classify the next layer under each surface.
Example.
Classified by wastewater discharge flow
Classification by stability according to continuity classification
Continuously stable
Intermittent
Unstable
Regular
Irregular
6 classification code
6.1 Coding principle
6.1.1 Normative
In the wastewater discharge law code system, the type, structure and writing format of the code must be uniform.
6.1.2 Uniqueness
There is only one code for each wastewater discharge law category, and one code indicates the only one type of wastewater discharge law.
6.1.3 Rationality
The code structure of the wastewater discharge law should be adapted to its classification system.
6.1.4 Extensibility
The code for wastewater discharge should be coded with appropriate backup capacity to accommodate expansion needs.
6.1.5 Simplicity
The code structure should be as simple as possible, convenient for users to fill in, while saving computer storage space, reducing code error rate and improving processing efficiency.
rate.
6.1.6 Stability
Once the wastewater discharge law code is determined, it should remain unchanged.
6.2 Coding method
The coding method for the classification of wastewater discharge law uses a juxtaposition code. There is no encoding for each attribute face. The category of the line classification method under each attribute face
The code is primarily coded in hierarchical order, but the following categories use special code.
a) The category code with negative meaning is 0. These categories include “intermittent” (discontinuous), “unstable”, “irregular”;
b) the code for the containment category "other" is 9;
c) The code length of the wastewater discharge law is consistent. Insufficient code length due to thicker classification, supplemented by the English lowercase letter "x".
6.3 Code Structure
In the category code, the category codes classified by the line classification method under each attribute face are arranged in a layer-by-layer order. The code is segmented by different main attribute faces and
Set. The code structure of the wastewater discharge law is shown in Figure 1.
□ □ □ □
Flow stability law code (3 digits)
Flow continuity code (1 bit)
Figure 1 code structure diagram
The meaning of each code is shown in Table 1.
Table 1 Wastewater discharge law code meaning table
Code location meaning
Whether the first digit is continuous
Is the second bit stable?
Is the third position regular?
4th place
flow
Special law
Example. A wastewater A has a periodic pattern for flow interruption, the code is 0011; a wastewater B is continuously stable for flow, and its code is 11xx.
7 Wastewater discharge law categories and code tables
7.1 Wastewater Discharge Flow Category Code Table
7.1.1 Wastewater Discharge Flow Continuity Rule Code Table
Table 2 Wastewater Discharge Rule Code Table 1st Bit Code (Flow Continuity)
1st meaning
1 continuous
0 break
7.1.2 Wastewater discharge flow stability law code table
Table 3 Wastewater discharge law code table 2 to 4 bit code (flow stability)
2nd, 3rd, 4th
Code meaning code meaning code meaning
1 stable x - x -
1 periodicity
1 regular
9 other
1 Impact type 0 unstable
0 irregular
9 other
7.2 Wastewater discharge code code table
Table 4 is the waste water discharge code code table.
Table 4 Wastewater discharge code code table
Classified by wastewater discharge flow
Classification by stability according to continuity classification
1st, 2nd, 3rd, 4th
Code Meaning Code Meaning Code Meaning Code Meaning
1 continuous 1 stable x - x -
1 periodicity
1 regular
9 other
1 Impact type 0 discontinuity 0 instability
0 irregular
9 other
7.3 Wastewater discharge code code quick lookup table
According to Table 2, Table 3 and Table 4, the quick-discovery table of the wastewater discharge law code of Table 5 is formed, and the wastewater discharge law in Table 5 can be directly used.
Code.
Table 5 Wastewater discharge code code quick lookup table
Wastewater discharge law code wastewater discharge law
11xx wastewater is continuously discharged and the flow is stable
1011 Waste water is continuously discharged, the flow rate is unstable, but there is periodicity
1019 Waste water is continuously discharged, the flow rate is unstable, but it is regular and does not belong to the periodic law.
1001 Waste water is continuously discharged, the flow rate is unstable, and it belongs to impact type discharge.
1009 Waste water is continuously discharged, the flow is unstable and irregular, but it is not impact type
01xx Intermittent discharge of wastewater, stable flow during discharge
0011 Intermittent discharge of wastewater, the flow rate is unstable during discharge, but there is periodicity
0019 Intermittent discharge of wastewater, the flow is unstable during discharge, but it is regular and does not belong to non-periodic law
0001 Intermittent discharge of wastewater, unstable flow during discharge, belonging to impact discharge
0009 Intermittent discharge of wastewater, the flow is unstable and irregular during discharge, but it is not impact type discharge
8 XML data definition
8.1 Wastewater discharge law code data structure diagram
OUTRULE_ID i-digit code
1..4
ruleName
Code
8.2 Wastewater discharge code Schema
\u003c?xml version=\"1.0\" encoding= \"gb2312\"?\u003e
attributeFormDefault="unqualified">
\u003cxs.element name=\"OUTRULE_ID\"\u003e
\u003cxs.complexType\u003e
\u003cxs.sequence\u003e
\u003cxs.element name=\"第 i 位码\" maxOccurs=\"4\"\u003e
\u003cxs.complexType\u003e
\u003cxs.sequence\u003e
\u003cxs.element name=\"ruleName\"/\u003e
\u003cxs.element name=\"Code\"/\u003e
\u003c/xs.sequence\u003e
\u003c/xs.complexType\u003e
\u003c/xs.element\u003e
\u003c/xs.sequence\u003e
\u003c/xs.complexType\u003e
\u003c/xs.element\u003e
\u003c/xs.schema\u003e
...
|