CN101492210A - Method for treating consumer waste concentrated liquor - Google Patents
Method for treating consumer waste concentrated liquor Download PDFInfo
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- CN101492210A CN101492210A CNA2009100141704A CN200910014170A CN101492210A CN 101492210 A CN101492210 A CN 101492210A CN A2009100141704 A CNA2009100141704 A CN A2009100141704A CN 200910014170 A CN200910014170 A CN 200910014170A CN 101492210 A CN101492210 A CN 101492210A
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- concentrated liquor
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Abstract
The invention relates to a method for treating a domestic garbage concentrated solution in the field of garbage processing methods. The technical proposal comprises the following steps: firstly, adding a flocculating agent to the domestic garbage concentrated solution according to the weight ratio of 150-80:1, stirring and reacting the mixture for 1 to 30 hours, and separating the deposit to obtain a primary treating liquid; secondly, adding a coagulant aid to the primary processing liquid according to the weight ratio of 8,000-15,000:1, and stirring, reacting and depositing the mixture to separate out the deposit so as to obtain a secondary processing liquid; thirdly, delivering the secondary processing liquid into a garbage leachate adjusting tank, using the secondary processing liquid to dilute garbage leachate, and then delivering the mixture to a water treatment system for purification; and fourthly, solidifying the separated deposits to perform landfill and incineration. The method has the characteristics of simple operation, easily-obtained raw material, low using cost, recycling and good processing effect, and can be widely applied to present matched water treatment systems.
Description
Technical field
The present invention relates to the treatment process of a kind of consumer waste concentrated liquor in the waste disposal method field.
Background technology
The processing of domestic refuse mainly comprises landfill, burning and chemistry, biological treatment etc., and the difficult point problem of its processing is the processing of refuse leachate.Present stage, consumer waste infiltration liquid was when the sewage disposal device operation of adopting disc tube reverse osmosis (dt-ro) technology, because of index height and treatment facility self reasons such as BOD, COD, specific conductivity, produce a large amount of concentrated solutions (30%---about 45%) and recharge the serious situation that the landfill district causes secondary pollution because of handling.For the garbage filter liquid processing method, newest research results is in advance percolate to be filtered, and the concentrated solution after the filtration carries out chemical treatment again." the film filtration concentrated treatment process in a kind of consumer waste infiltration liquid processing " (application number 200810093601.6) disclosed as Chinese patent, after adopting potassium permanganate that concentrated solution is carried out pre-treatment, adding this Potcrate and dioxide peroxide, to regulate its pH value be 11, and then add coagulating agent and flocculation agent.The outstanding problem of this method shows that operation steps is numerous and diverse, and the reagent composition of use is many, is difficult to control, lacks operability.
Summary of the invention
Purpose of the present invention is exactly the defective that exists at prior art, after the main component of conscientious assay rubbish concentrated solution, existing flocculation agent and coagulant aids are carried out the analysis of science contrast, according to scene repetition test and technical Analysis many times, select suitable material and proportioning, and then a kind of treatment process of simple and practical, easy to operate consumer waste concentrated liquor is provided.
Its technical scheme is: at first, press 150-80 in consumer waste concentrated liquor: 1 weight ratio is added flocculation agent, and through stirring after reaction 1-30 hour, the throw out separation obtains primary treatment liquid; Its two, press 8000-15000 in primary treatment liquid: 1 weight ratio is added coagulant aids, through stir, reaction precipitation, isolate throw out and obtain secondary treatment liquid; Its three, secondary treatment liquid is sent in the percolate equalizing tank, utilize its dilution to water down percolate after, enter water treatment system in the lump and carry out purifying treatment; Its four, twice isolating throw out carries out landfill or burning disposal behind overcuring.
Described flocculation agent is a kind of of polymerize aluminum chloride, polyaluminium sulfate or bodied ferric sulfate; Described coagulant aids is a polyacrylamide, and it is the one or more combination of positively charged ion, negatively charged ion and non-ionic polyacrylamide.
Technical scheme of the present invention is after the main component of conscientious assay rubbish concentrated solution, existing flocculation agent and coagulant aids are carried out the comparative analysis of science, according to scene test and technical Analysis many times, select suitable material and proportioning, in conjunction with specific operation steps, finally realized the purpose of efficient treating refuse concentrated solution.It has simple to operate, and raw material is easy to get, and use cost is low, recycles, and the characteristics that treatment effect is good are in can the widespread use supporting up till now water treatment system.
Embodiment
Embodiment 1, and at first, the weight ratio by 150: 1 in consumer waste concentrated liquor is added flocculation agent (specific conductivity is about 6.5 ten thousand), and through stirring after 20 hours, the throw out separation obtains primary treatment liquid; Its two, in primary treatment liquid, add coagulant aids by 10000: 1 weight ratio, through stir, reaction precipitation, isolate the block throw out of flocculation and obtain secondary treatment liquid; Its three, secondary treatment liquid is sent in the percolate equalizing tank through cascade filtration, utilize its dilution to water down percolate after, enter water treatment system in the lump and carry out purifying treatment; Its four, twice isolating throw out carries out landfill or burning disposal after solidifying through natural air drying.
Embodiment 2, and at first, the weight ratio by 100: 1 in consumer waste concentrated liquor is added flocculation agent, and through stirring after 8 hours, the throw out separation obtains primary treatment liquid; Its two, in primary treatment liquid, add coagulant aids by 12000: 1 weight ratio, through stir, reaction precipitation, isolate throw out and obtain secondary treatment liquid; Its three, secondary treatment liquid is sent in the percolate equalizing tank, utilize its dilution to water down percolate after, enter water treatment system in the lump and carry out purifying treatment; Its four, twice isolating throw out carries out landfill or burning disposal behind overcuring.
Embodiment 3, and at first, the weight ratio by 80: 1 in consumer waste concentrated liquor is added flocculation agent, and through stirring after 4 hours, the throw out separation obtains primary treatment liquid; Its two, in primary treatment liquid, add coagulant aids by 14000: 1 weight ratio, through stir, reaction precipitation, isolate throw out and obtain secondary treatment liquid; Its three, secondary treatment liquid is sent in the percolate equalizing tank, utilize its dilution to water down percolate after, enter water treatment system in the lump and carry out purifying treatment; Its four, twice isolating throw out carries out landfill or burning disposal behind overcuring.
Flocculation agent in the foregoing description is a kind of of polymerize aluminum chloride, polyaluminium sulfate or bodied ferric sulfate; Coagulant aids is a polyacrylamide, and it is the one or more combination of positively charged ion, negatively charged ion and non-ionic polyacrylamide.
Need to prove, flocculation agent used in the present invention and coagulant aids are existing products, but its addition is unconventional (common addition is 15-40ppm and 5-15ppm), the present invention adopts this increasing usage quantity to cooperate specific reaction times and operation steps, can realize the good treatment effect, and realize recycling of flocculation agent and coagulant aids.
Treatment process of the present invention also can be used as the pre-treatment of percolate, simultaneous adaptation when disposing of sewage, produces the post-processed of concentrated solution in employing disc tube reverse osmosis (dt-ro) treatment process such as trade effluent, papermaking, metallurgy, chemical industry and other sewage treatment process equipment.
Claims (2)
1, a kind of treatment process of consumer waste concentrated liquor is characterized in that: at first, press 150-80 in consumer waste concentrated liquor: 1 weight ratio is added flocculation agent, stirring and reaction 1-30 hour, and the throw out separation obtains primary treatment liquid; Its two, press 8000-15000 in primary treatment liquid: 1 weight ratio is added coagulant aids, through stir, reaction precipitation, isolate throw out and obtain secondary treatment liquid; Its three, secondary treatment liquid is sent in the percolate equalizing tank, utilize its dilution to water down percolate after, enter water treatment system in the lump and carry out purifying treatment; Its four, twice isolating throw out carries out landfill or burning disposal behind overcuring.
2, the treatment process of consumer waste concentrated liquor according to claim 1 is characterized in that: described flocculation agent is a kind of of polymerize aluminum chloride, polyaluminium sulfate or bodied ferric sulfate; Described coagulant aids is a polyacrylamide, and it is the one or more combination of positively charged ion, negatively charged ion and non-ionic polyacrylamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100141704A CN101492210A (en) | 2009-02-18 | 2009-02-18 | Method for treating consumer waste concentrated liquor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100141704A CN101492210A (en) | 2009-02-18 | 2009-02-18 | Method for treating consumer waste concentrated liquor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101492210A true CN101492210A (en) | 2009-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100141704A Pending CN101492210A (en) | 2009-02-18 | 2009-02-18 | Method for treating consumer waste concentrated liquor |
Country Status (1)
| Country | Link |
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| CN (1) | CN101492210A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319721A (en) * | 2011-07-21 | 2012-01-18 | 广州环投技术设备有限公司 | Method for simultaneously treating domestic garbage burning fly ash and domestic garbage leachate |
| CN105731692A (en) * | 2016-04-13 | 2016-07-06 | 湖北合加环境设备有限公司 | Pretreatment method suitable for evaporative crystallization of landfill leachate stock solution |
-
2009
- 2009-02-18 CN CNA2009100141704A patent/CN101492210A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319721A (en) * | 2011-07-21 | 2012-01-18 | 广州环投技术设备有限公司 | Method for simultaneously treating domestic garbage burning fly ash and domestic garbage leachate |
| CN105731692A (en) * | 2016-04-13 | 2016-07-06 | 湖北合加环境设备有限公司 | Pretreatment method suitable for evaporative crystallization of landfill leachate stock solution |
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Open date: 20090729 |