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HJ 557-2010: Solid waste. Extraction procedure for leaching toxicity. Horizontal vibration method
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Solid waste. Extraction procedure for leaching toxicity. Horizontal vibration method
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HJ 557-2010
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PDF similar to HJ 557-2010
Standard similar to HJ 557-2010 HJ 662 HJ 584 HJ 298 HJ 951 HJ 950 Basic data | Standard ID | HJ 557-2010 (HJ557-2010) | | Description (Translated English) | Solid waste. Extraction procedure for leaching toxicity. Horizontal vibration method | | Sector / Industry | Environmental Protection Industry Standard | | Classification of Chinese Standard | Z13 | | Classification of International Standard | 13.030.10 | | Word Count Estimation | 8,887 | | Date of Issue | 2010-02-02 | | Date of Implementation | 2010-05-01 | | Older Standard (superseded by this standard) | GB 5086.2-1997 | | Quoted Standard | GB/T 6682; HJ/T 20; HJ/T 298 | | Regulation (derived from) | Department of Environmental Protection announcement No. 11 of 2010 | | Issuing agency(ies) | Ministry of Ecology and Environment | | Summary | This standard specifies the leaching of toxic solid waste leaching procedures and quality assurance measures. This standard applies to assess surface water or groundwater by leaching, the solid waste and other solid substances of inorganic contaminants (cyanides, sulfides and other volatile contaminants except) leaching risks. This standard does not apply to non- water-soluble liquid containing the sample. | HJ 557-2010: Solid waste. Extraction procedure for leaching toxicity. Horizontal vibration method
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Solid waste.Extraction procedure for leaching toxicity.Horizontal vibration method
National Environmental Protection Standard of the People's Republic
Replace GB 5086.2-1997
Solid waste leaching toxicity leaching method
Horizontal oscillation
Solid waste-Extraction procedure for leaching toxicity
-Horizontal vibration method
Published on.2010-02-02
2010-05-01 Implementation
Ministry of Environmental Protection released
Ministry of Environmental Protection
announcement
No. 11 of.2010
In order to implement the "Environmental Protection Law of the People's Republic of China", protect the environment and protect human health, the "toxic waste leaching toxicity" is now approved.
The horizontal oscillating method of leaching method is a national environmental protection standard and is released.
The standard name and number are as follows.
The standard was implemented on May 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.
From the date of publication of the standard, the following standards formulated by the former National Environmental Protection Agency are abolished. The standard names and numbers are as follows.
Solid waste leaching toxicity leaching method horizontal oscillation method (GB 5086.2-1997).
Special announcement.
February 2,.2010
Content
Foreword..iv
1 Scope..1
2 Normative references..1
3 Terms and Definitions.1
4 method principle..1
5 Reagents and materials.1
6 instruments and equipment.2
7 samples. 2
8 Experimental steps.. 2
9 Quality Assurance and Quality Control 3
Foreword
To implement the Environmental Protection Law of the People's Republic of China and the Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Solid Waste, to protect the environment,
This standard is formulated to ensure human health and to regulate the detection method of solid waste leaching toxicity.
This standard specifies the leaching procedure for solid waste leaching toxicity and its quality assurance measures.
This standard is a revision of the "Level Oscillation Method for Leaching of Solid Waste Leaching Methods" (GB 5086.2-1997).
This standard was first published in 1985. The original standard was drafted. Tsinghua University Nuclear Energy Technology Design and Research Institute, Beijing Environmental Protection Supervision
Testing Center, China Environmental Monitoring Center, Tianjin Environmental Protection Research Institute and Energy and Electric Power Environmental Protection Research Institute. This is the second time
Revised. The main contents of the revision are as follows.
-- Revised the scope of application of the method;
-- Revised related terms and definitions;
-- Added method principle;
-- Improved experimental procedures and quality assurance and quality control requirements.
From the date of implementation of this standard, the national environmental protection standard approved by the former National Environmental Protection Agency on December 22,.1997
The horizontal oscillating method for bulk leaching toxicity leaching method (GB 5086.2-1997) is abolished.
This standard was formulated by the Science and Technology Standards Department of the Ministry of Environmental Protection.
This standard was drafted. Institute of Solid Waste Pollution Control Technology, Chinese Academy of Environmental Sciences.
This standard was approved by the Ministry of Environmental Protection on February 2,.2010.
This standard has been implemented since May 1,.2010.
This standard is explained by the Ministry of Environmental Protection.
Iv
Solid waste leaching toxicity leaching method horizontal oscillation method
1 Scope of application
This standard specifies the leaching procedure for solid waste leaching toxicity and its quality assurance measures.
This standard is applicable to the assessment of inorganic pollutants (cyanide, solid wastes and other solid materials) when immersed in surface water or groundwater.
Risk of leaching of unstable contaminants such as sulfides. This standard does not apply to samples containing water-insoluble liquids.
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/T 6682 Analytical laboratory water specifications and test methods
HJ/T 20 Technical Specifications for Sampling and Sample Preparation of Industrial Solid Waste
HJ/T 298 Hazardous Waste Identification Technical Specification
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1
Leaching leaching
The process of entering the liquid phase from the solid phase after the soluble component is dissolved.
3.2
Leaching toxicity
Solid waste is leached by water, and the leached harmful substances migrate and transform, polluting the environment. This hazard characteristic is called leaching toxicity.
3.3
Initial liquid phase
A liquid-solid two-phase sample is apparently present, and the resulting liquid is filtered prior to the leaching step.
4 Principle of the method
Pure water is used as a leaching agent to simulate the leaching of surface water or groundwater by solid waste in specific occasions, in which harmful components are leached.
The process of entering the environment.
5 reagents and materials
The reagents used in this standard are analyzed using analytical analytical reagents that meet national standards unless otherwise stated.
Extracting agent. water, GB/T 6682, secondary.
6 Instruments and equipment
6.1 Oscillation equipment. Reciprocating horizontal oscillating device with adjustable frequency.
6.2 Extraction bottle. 2 L jar with screw cap and inner lid, made of inert material that cannot leach or adsorb the components contained in the sample (eg glass or poly
Made of ethylene, etc.).
6.3 filter
6.3.1 Filtration device. a pressure filtration device or a vacuum filtration device, and a centrifugal separation device may also be used for samples that are difficult to filter.
6.3.2 Filter. 0.45 μm microporous membrane.
6.4 Balance. The accuracy is not less than ±0.01 g.
6.5 Screen. Teflon-coated screen with a hole diameter of 3 mm.
7 samples
7.1 Acquisition and preservation
Sample collection and storage were performed in accordance with the relevant regulations of HJ/T 298 and HJ/T 20.
7.2 Preparation of samples
Pick up the debris in the sample and crush all the collected samples so that the sample particles pass through the 3 mm pore size sieve (6.5).
8 Experimental steps
8.1 Determination of moisture content
8.1.1 According to the water content of the solid waste, weigh 20 to 100 g of the sample, and dry it at 105 ° C in a pre-dried constant weight covered container.
Constant weight to ±0.01 g, calculate the moisture content of the sample.
Note 1. The material of the container must not react with the waste.
8.1.2 When the sample contains the initial liquid phase, the sample shall be subjected to pressure filtration, and then the moisture content of the filter residue shall be determined. For the determination procedure, see 8.1.1. and
The moisture content and dry solids percentage of the sample were calculated based on the total sample amount (the sum of the initial liquid phase and the weight of the filter residue).
Note 2. Samples after moisture content determination shall not be used for leaching toxicity testing.
8.2 Leaching step
8.2.1 When the sample contains the initial liquid phase, the sample is filtered using a pressure filter (6.3.1) and a filter (6.3.2). Dry solid hundred
If the fraction is less than or equal to 9%, the initial liquid phase obtained is the leachate and analyzed directly; the percentage of dry solids greater than 9% will be
The filter residue was leached according to 8.2.2, and the initial liquid phase was mixed with all the leachate and analyzed.
8.2.2 Weigh a sample with a dry basis weight of 100 g and place it in a 2 L extraction bottle (6.2). According to the moisture content of the sample, the liquid-solid ratio is 10.1.
(L/kg) Calculate the volume of the required leaching agent, add the leaching agent, cover the bottle cap and fix it vertically on the horizontal oscillating device (6.1), adjust
The oscillation frequency was 110±10 times/min and the amplitude was 40 mm. After shaking at room temperature for 8 h, the extraction flask was removed and allowed to stand for 16 h. During the oscillation process
When gas is generated, the extraction bottle should be opened in the fume hood periodically to release excessive pressure.
8.2.3 Install the filter membrane (6.3.2) on the pressure filter (6.3.1), filter and collect the leachate according to the requirements of the analysis method of each analyte.
Save it.
8.2.4 Unless the digestion causes loss of the metal to be tested, the leachate used for metal analysis shall be digested as required by the analytical method.
9 Quality Assurance and Quality Control
9.1 Make at least one leaching blank for every 20 samples or batches of samples (when the sample size is less than 20).
9.2 Make at least one spiked sample for each batch of samples. The sieved sample to be tested is divided into the same two portions. Add to one of them
A known amount of the standard sample of the test object is subjected to leaching analysis according to the procedure specified in 8.2, and the recovery rate of the test object is calculated.
9.3 Make at least one parallel double sample for every 10 samples.
9.4 Sample leaching experiments should be completed in the time specified in Table 1 or in the relevant analytical methods.
Table 1 Maximum retention time unit of sample. d
Substance categories from field collection to leaching from leaching to pretreatment from pretreatment to quantitative analysis total experimental period
Mercury 28 - 28 56
Metals other than mercury 180 - 180 360
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