CN103641413B - A kind of method of disposal of phosphorous solid waste - Google Patents
A kind of method of disposal of phosphorous solid waste Download PDFInfo
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- CN103641413B CN103641413B CN201310661143.2A CN201310661143A CN103641413B CN 103641413 B CN103641413 B CN 103641413B CN 201310661143 A CN201310661143 A CN 201310661143A CN 103641413 B CN103641413 B CN 103641413B
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- phosphorous
- solid waste
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- refractory brick
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of method of disposal of phosphorous solid waste, first phosphorous solid waste is mixed for 3:1 ~ 1:2 by weight with calcium oxide; Add suitable quantity of water reaction 0.5 ~ 1.5hr again; Thing to be mixed adds the cement of 5% ~ 10% and the water of 5% ~ 20% after dropping to normal temperature, mix and blend 0.5 ~ 1.0hr; Finally by mixture natural curing 3 ~ 10 days, enter Hazardous wastes security landfill field landfill.This phosphorous solid waste can be phosphorous refractory brick, phosphorus containing sludge, phosphorous residue, phosphorous asbestos putty any one, if phosphorous refractory brick, before mixing with calcium oxide, first need carry out fragmentation.Intermittently can stir promote to react with supplementary air in the add water process of reacting of phosphorous solid waste and calcium oxide.This method of disposal can be converted into phosphoric acid salt or metaphosphate by elemental phosphorous, eliminates the harm of yellow phosphorus in waste residue; Waste residue Leaching conformance with standard after disposal, directly can enter hazardous waste landfill.The technique of this method of disposal is simple, and versatility is large.
Description
Technical field
The present invention relates to dangerous waste disposal technical field, particularly relate to a kind of method of disposal of phosphorous solid waste.
Background technology
Yellow phosphorus is a kind of very important basic industry raw material, is mainly used in multiple field such as chemical industry, agricultural chemicals.Phosphorous refractory brick is after the Yellow phosphorus furnace life-time service of phosphorous pesticide producing, scrap remove produce by the refractory brick of yellow phosphorus etch and a small amount of phosphorous asbestos putty.
Large quantifier elimination has been carried out in the recycling of domestic and international phosphorus-containing wastewater and mud, extracts yellow phosphorus method and mainly contains: steam phosphorus method, chemical method, vacuum suction filter method, electric field treatment method, adsorption method of separation etc.For example application publication number is CN 101723345 A, name is called in the patent document of " a kind of method of carrying out phosphorus recovery from phosphorus containing sludge " that disclosing a kind of employing centrifugally first carries out solid-liquid separation to mud mixed liquid, mud Phosphurus release after adopting hot acid combined method to realize solid-liquid separation again, then magnesium source is provided to precipitate phosphorus after solid-liquid separation in rich phosphorus supernatant liquor, the method for final drying precipitated products with seawater.Authorization Notice No. is CN 102381785 B, the recycling that a kind of solid content is phosphorus in the phosphorus concentrate slurry of about 60%-65% is disclosed in the patent document that name is called " a kind of method that phosphorus-containing wastewater reclaims ", first phosphorus concentrate slurry filters by it, then with after waste water mix and blend put into after phosphoric acid reaction tank reacts and again filter, the phosphogypsum after filtration and dilute phosphoric acid process respectively.
But to the disposal of the phosphorous solid waste such as phosphorous refractory brick refuse that cannot utilize or without utility value, not yet find a set of maturation, general, effective administering method.
Summary of the invention
In order to solve the technical problem existed in background technology, the present invention is intended to propose a kind of being applicable to for a long time by the method for disposal of phosphorous solid waste produced after yellow phosphorus high temperature erosion.
The method of disposal of a kind of phosphorous solid waste that the present invention proposes, comprises the following steps:
S1: phosphorous solid waste is mixed for 3:1 ~ 1:2 by weight with calcium oxide;
S2: add appropriate water in the mixture of step S1, to meet the reaction process that calcium oxide chemical combination generates calcium hydroxide, the reaction times is 0.5 ~ 1.5hr;
S3: after the mixture temperature of step S2 reaction gained drops to normal temperature, add the cement of 5% ~ 10%, add the water of 5% ~ 20%, mix and blend 0.5 ~ 1.0hr;
S4: by the mixture natural curing 3 ~ 10 days of step S3 mix and blend gained, enter Hazardous wastes security landfill field landfill.
Preferably, described phosphorous solid waste is phosphorous refractory brick.
Further, before being mixed with calcium oxide by phosphorous refractory brick, first phosphorous refractory brick is carried out fragmentation.
Preferably, require that granularity is less than 5mm after phosphorous refractory brick fragmentation.
Further, in step S2 during mixture reaction, interval is stirred or stirs mixture, and supplementary air enters in mixture, promotes reaction.
Preferably, the cement in step S3 is a kind of in ordinary Portland cement, Portland blast furnace slag cement or both mixtures.
Preferably, described phosphorous solid waste is one in phosphorus containing sludge, phosphorous residue, phosphorous asbestos putty or mixture.
Disclosing based on technique scheme, the method for disposal of described phosphorous solid waste provided by the invention mixes to react with calcium oxide by adding water and is effectively converted into phosphoric acid salt or metaphosphate by elemental phosphorous, eliminates the hazardness of yellow phosphorus in waste residue; Waste residue Leaching after disposal meets hazard waste landfill Environmental capacity standard, directly can enter hazardous waste landfill; The technique of the method for disposal of described phosphorous solid waste provided by the invention is simple, and versatility is large, hard for quality, cannot be obtained the refractory brick class waste residue particularly suitable of effectively disposal in a short time by solid-liquid reaction.
Embodiment
Below in conjunction with embodiment, technical scheme provided by the invention is described further.
Embodiment 1
By total phosphorous be 10% phosphorous refractory brick 250g be crushed to after granularity is less than below 5mm, mix with unslaked lime by the weight ratio of 1:1.5, add suitable quantity of water, unslaked lime hydration heat, interval is stirred mixture.When reactant is more dry, keep the skin wet, interval is stirred, and repeats aforesaid operations, reaction 1hr.
Then add the cement of 10% in the mixture, add water stirring, hybrid reaction 0.5hr, natural curing 7 days under normal temperature, and detect the Leaching disposing after fixing body, data see the following form 1.
Embodiment 2
By the phosphorus containing sludge 500g of total phosphorous 1.5%, mix with 3:1 with unslaked lime, supplement appropriate moisture, mixture of intermittently stirring.When reactant is more dry, keep the skin wet, interval is stirred, and repeats aforesaid operations, reaction 40min.
Then add the cement of about 5% in the mixture, add water stirring, hybrid reaction 0.5hr, natural curing 3 days under normal temperature, and detect the Leaching disposing after fixing body, data see the following form 1.
Embodiment 3
By the phosphorus-containing waste slag 300g of total phosphorous 20%, mix with 1:2 with unslaked lime, supplement appropriate moisture, mixture of intermittently stirring.When reactant is more dry, keep the skin wet, interval is stirred, and repeats aforesaid operations, reacts 1.5 hr.
Then add the cement of about 10% in the mixture, add water stirring, hybrid reaction 1hr, natural curing 10 days under normal temperature, and detect the Leaching disposing after fixing body, data see the following form 1.
table 1 phosphorus-containing waste slag is disposed and is detected data
As seen from the above table, each parameter of the Leaching of the cured body after technical scheme provided by the invention is disposed not only all meets Stabilization Control limit value, and is far superior to Stabilization Control limit value.
To sum up, the method for disposal of described phosphorous solid waste provided by the invention mixes to react with calcium oxide by adding water and is effectively converted into phosphoric acid salt or metaphosphate by elemental phosphorous, eliminates the hazardness of yellow phosphorus in waste residue; Waste residue Leaching after disposal meets hazard waste landfill Environmental capacity standard, directly can enter hazardous waste landfill; The technique of the method for disposal of described phosphorous solid waste provided by the invention is simple, and versatility is large, hard for quality, cannot be obtained the refractory brick class waste residue particularly suitable of effectively disposal in a short time by solid-liquid reaction.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (1)
1. a method of disposal for phosphorous solid waste, is characterized in that, comprises the following steps:
S1: phosphorous solid waste is mixed for 3:1 ~ 1:2 by weight with calcium oxide;
S2: add appropriate water in the mixture of step S1, to meet the reaction process that calcium oxide chemical combination generates calcium hydroxide, the reaction times is 0.5 ~ 1.5hr; During mixture reaction, interval is stirred or stirs mixture, and supplementary air enters in mixture, promotes reaction;
S3: after the mixture temperature of step S2 reaction gained drops to normal temperature, add the cement of 5% ~ 10%, add the water of 5% ~ 20%, mix and blend 0.5 ~ 1.0hr; Cement is a kind of in ordinary Portland cement, Portland blast furnace slag cement or both mixtures;
S4: by the mixture natural curing 3 ~ 10 days of step S3 mix and blend gained, enter Hazardous wastes security landfill field landfill;
Described phosphorous solid waste is phosphorous refractory brick; Before being mixed with calcium oxide by phosphorous refractory brick, first phosphorous refractory brick is carried out fragmentation; Require that granularity is less than 5mm after phosphorous refractory brick fragmentation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310661143.2A CN103641413B (en) | 2013-12-10 | 2013-12-10 | A kind of method of disposal of phosphorous solid waste |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310661143.2A CN103641413B (en) | 2013-12-10 | 2013-12-10 | A kind of method of disposal of phosphorous solid waste |
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| CN103641413A CN103641413A (en) | 2014-03-19 |
| CN103641413B true CN103641413B (en) | 2015-09-09 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113368600B (en) * | 2021-05-11 | 2022-10-14 | 何建军 | Vacuum constant temperature yellow phosphorus filter |
| CN113333446B (en) * | 2021-07-15 | 2023-05-30 | 深圳星河环境股份有限公司 | Inorganic cementing stabilization treatment process based on fluorine-reducing and phosphorus-removing of lean phosphorus mud |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159436A (en) * | 1996-03-12 | 1997-09-17 | 云南磷肥厂 | Mixed phosphate fertilizer |
| CN101633210A (en) * | 2009-08-28 | 2010-01-27 | 唐山市盈心耐火材料有限公司 | Method for preparing building material product from waste porcelain |
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2013
- 2013-12-10 CN CN201310661143.2A patent/CN103641413B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159436A (en) * | 1996-03-12 | 1997-09-17 | 云南磷肥厂 | Mixed phosphate fertilizer |
| CN101633210A (en) * | 2009-08-28 | 2010-01-27 | 唐山市盈心耐火材料有限公司 | Method for preparing building material product from waste porcelain |
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| CN103641413A (en) | 2014-03-19 |
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Inventor after: Luo Youbin Inventor after: Chen Qingyan Inventor after: Deng Xiaobing Inventor after: Dai Jianbo Inventor before: Deng Xiaobing Inventor before: Chen Qingyan Inventor before: Luo Youbin Inventor before: Dai Jianbo |
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Free format text: CORRECT: INVENTOR; FROM: DENG XIAOBING CHEN QINGYAN LUO YOUBIN DAI JIANBO TO: LUO YOUBIN CHEN QINGYAN DENG XIAOBING DAI JIANBO |
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