CN103933696B - A kind of poisonous and harmful solid waste solidification and stabilization firming agent - Google Patents
A kind of poisonous and harmful solid waste solidification and stabilization firming agent Download PDFInfo
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- CN103933696B CN103933696B CN201410101930.6A CN201410101930A CN103933696B CN 103933696 B CN103933696 B CN 103933696B CN 201410101930 A CN201410101930 A CN 201410101930A CN 103933696 B CN103933696 B CN 103933696B
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- poisonous
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- solid waste
- stabilization
- solidification
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Abstract
The invention provides a kind of special, for the solidification medicament of poisonous and harmful solid waste solidification and stabilization, it is bicomponent structural, liquor and powder collectively form.Described poisonous and harmful solid waste refers to the soil particle containing ionic state heavy metal, building waste, mud, and this solidification medicament excites coherent element generation cross-linking reaction formation chain structure in solid waste to reach the purpose of the useless solidification and stabilization of solid danger.In curing reaction initial stage hazardous waste, noxious substance transfer ability is restricted, and curing reaction noxious substance in mid-term toxicity reduces, and it is adsorbed to aggregate into agglomerate granule, and curing reaction terminates poisonous and harmful substance and do not oozes out.
Description
Technical field
The present invention relates to field of Environment Protection, particularly relate to a kind of firming agent administered for poisonous and harmful solid waste solidification and stabilization.
Background technology
For the process of poisonous and harmful solid waste, landfill is that one is the easiest, the most direct processing method.Sanitary landfills is taked to be effectively reduced the pollution to subsoil water, surface water, soil and air.Each city can look for a remote place on the outskirts of a town, for solid danger waste landfill site.On request, landfill yard must do antiseep and process, and the poisonous and harmful substance in preventing solid danger useless penetrates into underground, contaminated soil and water body.In fact limited due to antiseepage and the sealing ability of landfill yard, there is the seepage of the useless leachate of solid danger, and the flying away of the useless dust of solid danger, make to enter ecological circulation containing substantial amounts of heavy metal and the liquid of harmful substance and powder body, health is caused serious threat.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, it is provided that a kind of special, for the solidification medicament of poisonous and harmful solid waste solidification and stabilization.Described poisonous and harmful solid waste refers to the soil particle containing ionic state heavy metal, building waste, mud.
Poisonous and harmful solid waste solidification and stabilization firming agent of the present invention is bicomponent structure, being made up of A agent and B agent, it includes polymine, sodium metnylene bis-naphthalene sulfonate, Polyethylene Glycol dispersant, sodium silicate, Ludox, calcium sulfate, calcium hydroxide, flyash, attapulgite, water.By mass parts, A agent is made in Ludox 10%-40%, water 60%-90% mixing barrelling；By calcium sulfate 5%-30%, calcium hydroxide 5%-40%, flyash 10%-40%, attapulgite 10%-40%, in less than 200 DEG C grindings to 350 mesh after Polyethylene Glycol dispersant 0.1%-3% mixing, after grinding, powder temperature is cooled to less than 40 DEG C and adds polymine 0.1%-5%, and sodium metnylene bis-naphthalene sulfonate 0.01%-0.5%, sodium silicate 3%-10% make B agent.
The advantage of the firming agent of the present invention and good effect are first to slow down the migration of heavy metal harmful substance in solid waste, reduce poisonous and harmful solid waste in solidification and stabilization processing procedure to air, soil, the pollution of water, then heavy metal ion carries out chelating absorption, reduce toxicity and the transfer ability of heavy metal ion further, the last generation chemical reaction that interacts with substantial amounts of reactive group in solid waste, cause chemical bond and molecule to couple and be cross-linked into three-dimensional-structure, tend to stablizing of chemistry simultaneously, original molecular structure and intermolecular framework gradually change, this change makes molecular structure become tough and tensile, the most crosslinked three-dimensional polymer is insoluble, do not melt, its interior heavy metal ion is completely enclosed, reach the purpose of poisonous and harmful solid waste solidification and stabilization.
Detailed description of the invention
Below in conjunction with instantiation, the poisonous and harmful solid waste solidification and stabilization firming agent of the present invention is described in further detail.
Embodiment 1
To volume be 100 cubic metres containing heavy metal cadmium, zinc, lead, arsenic, the soil of nickel and content superstate standard of soil environment quality (GB15618-1995) grade III Standard, carry out solidification and stabilization process, carrying out calculating pending soil quality according to density 1.8t/m of general soil is 180 tons, A agent that is 5.4 ton are sprayed according to the 3% of soil quality according to soil moisture content situation, without puddling, A agent dispenses B agent after having sprayed 10 hours, B agent usage amount is according to 6% that is 10.8 ton of soil quality, use digging machine, loader or other large-scale mixing plants dispense while puddling, do after puddling uniformly and suitably roll.
Soil after solidification and stabilization process is without doing special maintenance, only need to carry out anti-rain protection, after 7 days, sample analysis soil is by the content of heavy metal in the leachate of the leaching mode measurement of regulation in solid waste " Leaching leaching method sulfonitric method " (HJ/T299 2007), after process, the leaching value of cadmium is less than 0.01mg/L, the leaching value of lead is less than 0.05mg/L, the leaching value of arsenic is less than 0.05mg/L, the requirement of III class water concentration limit value in below " groundwater quality standard " GB/T14848-93.
Claims (3)
1. a poisonous and harmful solid waste solidification and stabilization firming agent, it is characterised in that for bicomponent structure, being made up of A agent and B agent, wherein A agent includes Ludox, water；B agent includes polymine, sodium metnylene bis-naphthalene sulfonate, Polyethylene Glycol dispersant, sodium silicate, calcium sulfate, calcium hydroxide, flyash, attapulgite.
Poisonous and harmful solid waste solidification and stabilization firming agent the most according to claim 1, it is characterised in that in mass ratio by Ludox 10%-40%, A agent is made in water 60%-90% mixing barrelling；By calcium sulfate 5%-30%, calcium hydroxide 5%-40%, flyash 10%-40%, attapulgite 10%-40%, in less than 200 DEG C grindings to 350 mesh after Polyethylene Glycol dispersant 0.1%-3% mixing, after grinding, powder is cooled to less than 40 DEG C and adds polymine 0.1%-5%, and sodium metnylene bis-naphthalene sulfonate 0.01%-0.5%, sodium silicate 3%-10% make B agent.
Poisonous and harmful solid waste solidification and stabilization firming agent the most according to claim 2, it is characterised in that A agent is liquor, and B agent is powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410101930.6A CN103933696B (en) | 2014-03-19 | 2014-03-19 | A kind of poisonous and harmful solid waste solidification and stabilization firming agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410101930.6A CN103933696B (en) | 2014-03-19 | 2014-03-19 | A kind of poisonous and harmful solid waste solidification and stabilization firming agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103933696A CN103933696A (en) | 2014-07-23 |
| CN103933696B true CN103933696B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410101930.6A Expired - Fee Related CN103933696B (en) | 2014-03-19 | 2014-03-19 | A kind of poisonous and harmful solid waste solidification and stabilization firming agent |
Country Status (1)
| Country | Link |
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| CN (1) | CN103933696B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106433668A (en) * | 2016-08-30 | 2017-02-22 | 广州润土环境治理有限公司 | Heavy metal pollution soil restoration agent and use method thereof |
| CN110507947B (en) * | 2019-09-02 | 2021-04-09 | 中国人民警察大学 | Chelating type metal salt organic liquid hazardous chemical leakage treating agent |
| CN113231442B (en) * | 2021-05-08 | 2022-05-24 | 南宁市城乡规划设计研究院有限公司 | Aluminum tailing slag improvement method based on ion exchange and crosslinking reaction |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114670C (en) * | 2000-11-20 | 2003-07-16 | 于英男 | Solidifying composition for coagulating soil |
| US7730662B2 (en) * | 2002-10-15 | 2010-06-08 | Encap, Llc. | Soil stabilizer carrier |
| CN1288223C (en) * | 2004-12-27 | 2006-12-06 | 陈永烽 | R+H-soft soil strong effect curing agent |
| CN101100854A (en) * | 2007-08-06 | 2008-01-09 | 杨毅男 | Environment-friendly type soil solidifying agent |
| CN102031118A (en) * | 2010-09-29 | 2011-04-27 | 李小平 | Heavy metal chelating agent and preparation method thereof |
| CN102766465A (en) * | 2012-07-31 | 2012-11-07 | 湖南永清环境修复有限公司 | Ion mineralization stabilizer for treating soil with heavy metal pollution and application method thereof |
| CN102965119B (en) * | 2012-11-22 | 2014-12-03 | 中节能六合天融环保科技有限公司 | Preparation method of heavy metal polluted soil stabilizer |
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2014
- 2014-03-19 CN CN201410101930.6A patent/CN103933696B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN103933696A (en) | 2014-07-23 |
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Granted publication date: 20160824 Termination date: 20170319 |