CN102107204A - Innocent treatment process for industrial heavy metal waste residue by utilizing treating waste with waste - Google Patents
Innocent treatment process for industrial heavy metal waste residue by utilizing treating waste with waste Download PDFInfo
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- CN102107204A CN102107204A CN2009102267209A CN200910226720A CN102107204A CN 102107204 A CN102107204 A CN 102107204A CN 2009102267209 A CN2009102267209 A CN 2009102267209A CN 200910226720 A CN200910226720 A CN 200910226720A CN 102107204 A CN102107204 A CN 102107204A
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- waste
- heavy metal
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- solidification matrix
- cement
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Abstract
The invention relates to an innocent treatment process for industrial heavy metal waste residue by utilizing treating waste with waste. In the process provided by the invention, a novel cement curing matrix taking the urban trash firing fly ash as a main component is utilized, wherein the curing matrix comprises following the components in percentage by weight: 60-70% of the urban trash firing fly ash, 10-20% of aluminum-containing additive (aluminum-containing industrial waste residue powder) and 6-20% of calcium controlling agent (lime powder). The process provided by the invention comprises the following components: mixing the trash firing fly ash curing matrix prepared from the components with the industrial heavy metal solid waste residue or sludge to be treated together; adding a proper amount of water, and stirring uniformly; and then preparing a cement curing body; after conserving for five days at normal temperature, embedding in a landfill site. The process provided by the invention is an innocent treatment method of treating waste with waste.
Description
Technical field
The present invention relates to a kind of industrial heavy metal waste slag harmless treatment process of the treatment of wastes with processes of wastes against one another, belong to environmental engineering and Environmental Chemistry technical field.
Background technology
The solid slag of industrial process discharging has considerable part to belong to the harm refuse of heavy metal, and these refuses are recessive at the beginning of economic development to the mankind's influence, thereby takes direct stack or landfill form disposal in the past basically.Along with the progressively domination of these recessive influences, must consider these heavy metal waste slags are carried out safe handling before the landfill.
Waste incineration is the important means of domestic waste, but burning process will produce a large amount of flying dusts and bottom ash, and the ecological environment that the mankind are depended on for existence brings influence, therefore should be to the flying dust safe handling, even be used.
In general, be the basic skills of safe handling hazardous material with the method for cement stable curing, in overbasic portland cement system hydration process, some poisonous metals by with the main aquation of cement CSH (CaO.SiO mutually
2.nH
2O) the physics chemical action cement solidification matrix that is stabilized in bond weighs.In view of cement solidification method has advantages such as economic easy to operate, be used widely in the harm waste disposal abroad of this solidification matrix.But, high osmosis, the high-voidage of traditional cement solidification matrix are poor as solidification effects such as lead, arsenic, mercury, chromium to part metals, simultaneously, and some treatment of wastes with processes of wastes against one another technology patents of having announced, with material cost height, should adhere to realizing at lower cost administering purpose as environmental improvement technology.
Summary of the invention
The objective of the invention is to utilize city garbage burning flying ash to be main raw material(s), by improving the compound of material, form a kind of new solidification matrix, stablize the poisonous metal in the industrial solid waste residue effectively, city garbage burning flying ash and some metal waste residues have been made full use of simultaneously, for flying dust and metal waste residue utilization have found a kind of comprehensive environment-protective process.
The main chemical compositions of city garbage burning flying ash has that rich calcium is siliceous, chlorine, aluminium, its with contain that the aluminium calcareous material mixes and the aquation hydro-combination process in, form CaO-SiO
2-Al
2O
3-CaCl
2-10H
2The O system, and form the bovite mineral, it comprises Afin phase (3C
3A.3CaSO
4.32H
2O), Friedel phase (3C
3A.CaCl
2.10H
2O), Aft phase (3C
3A.3CaSO
4.32H
2O) with CSH (CaO.SiO mutually
2.nh
2O), Friedel is the effective potential mineral matter of stabilizing heavy metal cation and anion radical with Aft mutually mutually.Chlorion in the flying dust can form the Friedel phase of layer structure, sulfate ion then easily form to heavy metal have Afin that intense beam ties up effect mutually with Aft mutually.This explanation is by the proportioning adjustment of flying dust sill group, can realize the coexistence of CSH phase-Afin phase, the reasonably coupling of solidification matrix phase design is the leading phases of a kind of new solidification matrix mineral as the compound of CSH phase-Friedel phase-Afin phase mutually, can handle all kinds of heavy metal waste slags by effective and safe.
In fact, municipal refuse flying dust of the present invention and the mixing cured technology of multiple Industrial Metal waste residue belong to cement stabilizing and solidify, it is characterized in that adopting the novel concrete solidification matrix, promptly adopting city garbage burning flying ash is the main class cement solidification matrix of forming, the component of this solidification matrix and prescription: city garbage burning flying ash 60-70wt%, aluminum-containing additive 1020wt%, calcareous controlling agent 6-20wt%.Above-mentioned aluminum-containing additive adopts and contains the aluminium industrial residue, clays into power in case of necessity, and above-mentioned calcareous controlling agent is pulverized limestone not.With above-mentioned class cement solidification matrix and the industrial heavy metal solid slag or the mud mixed together that need deal with, add suitable quantity of water, stir, make solidified cement body then, the normal temperature maintenance was imbedded landfill yard after five days.
Class cement solidification matrix and industrial heavy metal solid slag mixed together that above-mentioned solidified cement body is made up of incineration of refuse flyash, aluminum-containing additive, calcareous controlling agent are made, and both suitable ratios are 1/1-1.6/1.Described city garbage burning flying ash is for containing the low element silicon composition of rich calcium, and described aluminum-containing additive is rich aluminium industrial residue powder, and described calcareous controlling agent is a pulverized limestone.
Class cement solidification matrix of the present invention, the employing city garbage burning flying ash is a primary raw material, can effectively handle a large amount of municipal wastes and trade waste, helps environmental protection.
The specific embodiment
Embodiment: prescription is produced cement solidification matrix in accordance with regulations earlier.The solidification matrix of waste incineration flying dust ash base and the match ratio of industrial heavy metal solid slag are elected 1.5/1.0 as.The component of solidification matrix and proportioning are: city garbage burning flying dust 60% contains aluminium industrial residue powder 20%, calcareous controlling agent pulverized limestone 20%.
Handle 400 kilograms in waste residue electroplated heavy metals nickel, chromium mud, with 360 kilograms of city garbage burning flying ash, contain the aluminium industrial residue 120 kg of claying into power, calcareous controlling agent pulverized limestone 120 kg mixes and makes class cement solidification matrix.Solidification matrix and heavy metal sewage sludge mixed carry out mechanical agitation after adding suitable quantity of water, make 1000 kilograms of (dry weight) cement block stone firming bodys then, maintenance was imbedded landfill yard after five days under the normal temperature.
Tradition cement solidification matrix needs 600 kilograms of cement, handle 400 kilograms of electroplating sludges, among the embodiment of the inventive method without cement, and contain only 240 kilograms of aluminium industrial residue powder and pulverized limestones, the volume increase-volume compares traditional cement solidification matrix and reduces, and the heavy metal ion leaching rate of actual detected can reduce 2-3 doubly than traditional cement curing.
Claims (3)
1. a municipal refuse and the mixing cured innoxious technology of multiple Industrial Metal waste residue, this technology is essentially cement stabilizing and solidifies, it is characterized in that adopting with the city garbage burning flying ash is the main class cement solidification matrix of forming, the component recipe ratio of solidification matrix is: incineration of refuse flyash 60～70wt%, aluminum-containing additive 10～20wt%, calcareous controlling agent 6～20wt%; To add suitable quantity of water and stir by above-mentioned prescription class cement solidification matrix for preparing and the industrial heavy metal solid waste mixed together that need deal with, make the forming and hardening body then, the normal temperature maintenance was imbedded landfill yard after five days.
2. method according to claim 1 is characterized in that described city garbage burning flying ash is for containing the low element silicon composition of rich calcium; Described aluminum-containing additive is rich aluminium industrial residue powder; Described calcareous controlling agent is a pulverized limestone.
3. method according to claim 1 is characterized in that solidified cement body is that the class cement solidification matrix and the industrial heavy metal solid slag mixed together of compositions such as incineration of refuse flyash made, and this both proper formulation ratio is: 1/1-1.6/1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102267209A CN102107204A (en) | 2009-12-23 | 2009-12-23 | Innocent treatment process for industrial heavy metal waste residue by utilizing treating waste with waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102267209A CN102107204A (en) | 2009-12-23 | 2009-12-23 | Innocent treatment process for industrial heavy metal waste residue by utilizing treating waste with waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102107204A true CN102107204A (en) | 2011-06-29 |
Family
ID=44171550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102267209A Pending CN102107204A (en) | 2009-12-23 | 2009-12-23 | Innocent treatment process for industrial heavy metal waste residue by utilizing treating waste with waste |
Country Status (1)
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104668266A (en) * | 2014-12-03 | 2015-06-03 | 厦门紫金矿冶技术有限公司 | Innocent treatment method of arsenic-containing dangerous waste residues |
| CN104761113A (en) * | 2015-04-28 | 2015-07-08 | 江苏理工学院 | Stabilized solidification method of electroplating sludge |
| CN105478447A (en) * | 2015-12-30 | 2016-04-13 | 西南科技大学 | Treatment method for incineration fly ash of household rubbish |
| CN106377867A (en) * | 2016-08-22 | 2017-02-08 | 武汉都市环保工程技术股份有限公司 | Curing agent and curing method for heavy metals in fly ash from mswi (municipal solid waste incineration) |
| CN107671108A (en) * | 2017-10-26 | 2018-02-09 | 中节能清洁技术发展有限公司 | Curing for hazardous waste |
| CN112934919A (en) * | 2021-02-05 | 2021-06-11 | 云南大地丰源环保有限公司 | Method for treating waste anhydrous aluminum chloride |
| CN115745436A (en) * | 2022-11-22 | 2023-03-07 | 四川墣锦净土科技有限公司 | Method for cooperatively treating multiple heavy metal combined contaminated soil by using cement kiln |
| CN116023111A (en) * | 2023-02-02 | 2023-04-28 | 重庆财信环境资源股份有限公司 | Full-solid waste sludge solidification and stabilization composite material and preparation method and application thereof |
| CN116689451A (en) * | 2023-06-13 | 2023-09-05 | 华南理工大学 | Friedel salt-based aluminum ash and fly ash cooperative treatment method |
-
2009
- 2009-12-23 CN CN2009102267209A patent/CN102107204A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104668266A (en) * | 2014-12-03 | 2015-06-03 | 厦门紫金矿冶技术有限公司 | Innocent treatment method of arsenic-containing dangerous waste residues |
| CN104668266B (en) * | 2014-12-03 | 2017-03-15 | 厦门紫金矿冶技术有限公司 | A kind of method for innocent treatment of waste residue of endangering containing arsenic |
| CN104761113A (en) * | 2015-04-28 | 2015-07-08 | 江苏理工学院 | Stabilized solidification method of electroplating sludge |
| CN106986516A (en) * | 2015-04-28 | 2017-07-28 | 江苏理工学院 | A kind of stabilisation curing of electroplating sludge |
| CN105478447A (en) * | 2015-12-30 | 2016-04-13 | 西南科技大学 | Treatment method for incineration fly ash of household rubbish |
| CN106377867A (en) * | 2016-08-22 | 2017-02-08 | 武汉都市环保工程技术股份有限公司 | Curing agent and curing method for heavy metals in fly ash from mswi (municipal solid waste incineration) |
| CN107671108A (en) * | 2017-10-26 | 2018-02-09 | 中节能清洁技术发展有限公司 | Curing for hazardous waste |
| CN112934919A (en) * | 2021-02-05 | 2021-06-11 | 云南大地丰源环保有限公司 | Method for treating waste anhydrous aluminum chloride |
| CN115745436A (en) * | 2022-11-22 | 2023-03-07 | 四川墣锦净土科技有限公司 | Method for cooperatively treating multiple heavy metal combined contaminated soil by using cement kiln |
| CN116023111A (en) * | 2023-02-02 | 2023-04-28 | 重庆财信环境资源股份有限公司 | Full-solid waste sludge solidification and stabilization composite material and preparation method and application thereof |
| CN116689451A (en) * | 2023-06-13 | 2023-09-05 | 华南理工大学 | Friedel salt-based aluminum ash and fly ash cooperative treatment method |
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Application publication date: 20110629 |