Stage treatment method for mercury containing waste
A technology for graded treatment and waste, applied in the direction of data processing applications, instruments, resources, etc., can solve the problems of serious secondary pollution, no clear extended system of responsibility for producers and sellers, complex component classification management, etc., and achieve the goal of reducing errors Effect
Inactive Publication Date: 2018-02-06
SHENYANG ACAD OF ENVIRONMENTAL SCI +1
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Problems solved by technology
Although mercury-containing wastes have been listed as HW29 hazardous wastes in the "National Hazardous Waste List", due to the wide variety of mercury-containing wastes, involving multiple related industries, and complex components, they have not been classified and managed. management mode
At present, the management of mercury-containing wastes has the following problems: ① The classification and grading index system for mercury-containing wastes has not yet been established, and there is a lack of classified management measures; ② There has not been a complete guidance for the identification procedures of mercury-containing hazardous wastes. The leaching toxicity identification is mainly based on inorganic heavy Hg, while The leaching toxicity identification standard of organic Hg has not yet been formulated
③ Lack of in-depth research on the generation characteristics and pollution characteristics of mercury-containing hazardous waste in my country
④ The level of disposal and comprehensive utilization is still at a relatively low level, and grassroots units have different understandings of comprehensive utilization, and secondary pollution is relatively serious
⑥ Relying on foreign countries for disposal technology and equipment, resulting in high disposal costs and difficulties in enterprise operation
Method used
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example 1
[0015] Example 1: Classification of mercury-containing waste in the primary mercury mining, dressing and smelting industry, see Table 1-1 to Table 1-3.
[0016] Table 1-1 Mining Waste Rock Assessment Grading Table
[0017]
[0018] Table 1-2 Mercury soot grading assessment grading table
[0019]
[0020] Table 1-3 Sludge Assessment Grading Table for Water Treatment
[0021]
[0022] From this, the classification and classification of mercury-containing waste in the primary mercury mining, dressing and smelting industry can be obtained, as shown in Table 1-4.
[0023] Table 1-4 List of Classification and Grading System of Mercury Wastes in Primary Mercury Mining, Dressing and Smelting Industry
[0024]
example 2
[0025] Example 2: Classification of mercury-containing waste in the basic chemical raw material manufacturing industry.
[0026] With the method of Example 1, the classification of mercury-containing wastes in the basic chemical raw material manufacturing industry is shown in Table 2-1, and will not be repeated here.
[0027] Table 2-1 List of classification and grading systems for mercury-containing wastes in the basic chemical raw material manufacturing industry
[0028]
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The invention provides a stage treatment method for mercury containing waste. The invention aims to solve a problem of how to reduce staging errors of mercury containing waste. The method includes setting mercury containing waste stage judgment basis according to stage judgment experience for major hazard sources of dangerous chemicals, constructing a mercury containing waste sorting and staging evaluation index system by adopting an analytic hierarchy process, and performing staging on the mercury containing waste according to the constructed mercury containing waste staging evaluation systemwhen a mercury containing waste risk source appears. The method provided by the invention is suitable for staging of mercury containing waste. The invention has positive effects of reducing staging errors of the mercury containing waste.
Description
technical field [0001] The invention relates to mercury-containing waste, in particular to a method for grading mercury-containing waste. Background technique [0002] my country is a big country in the production, use and discharge of mercury. The production and use of mercury account for about 60% of the global production and use. The production and use of mercury cause a large amount of mercury-containing waste to be generated and discharged. Although mercury-containing wastes have been listed as HW29 hazardous wastes in the "National Hazardous Waste List", due to the wide variety of mercury-containing wastes, involving multiple related industries, and complex components, they have not been classified and managed. management mode. At present, the management of mercury-containing wastes has the following problems: ① The classification and grading index system for mercury-containing wastes has not yet been established, and there is a lack of classified management measures;...
Claims
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CPCG16Z99/00
Inventor 张正洁陈扬姜晓明陈刚刘俐媛冯钦忠李宝磊刘舒祁国恕邵春岩
Owner SHENYANG ACAD OF ENVIRONMENTAL SCI