CN104386885B - A kind for the treatment of process of city domestic refuse percolation liquid - Google Patents
A kind for the treatment of process of city domestic refuse percolation liquid Download PDFInfo
- Publication number
- CN104386885B CN104386885B CN201410738508.1A CN201410738508A CN104386885B CN 104386885 B CN104386885 B CN 104386885B CN 201410738508 A CN201410738508 A CN 201410738508A CN 104386885 B CN104386885 B CN 104386885B
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- CN
- China
- Prior art keywords
- percolate
- domestic refuse
- percolation liquid
- city domestic
- brick
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/341—Consortia of bacteria
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
The invention discloses a kind for the treatment of process of city domestic refuse percolation liquid, comprise the following steps: (1) collects percolate; (2) send into cultivation gas explosion tank aeration to cultivate; (3) pH is regulated with milk of lime; (4) sterilizing in vitrified brick roasting waste heat boiler is pumped into; (5) percolate after sterilizing and shale powder are mixed, in the half-dried plastic extruding molding machine of vacuum, be extruded into brick; (6) oven dry, roasting.Treated city domestic refuse percolation liquid is used for the production of shale brick field by the present invention, both combine, domestic refuse is better processed, this process operation is simple, cost is low, efficiency is high, and can not produce the by product of harm humans and environment, makes percolate reach zero release and is thoroughly processed.
Description
Technical field
The invention belongs to landfill leachate treatment field, be specifically related to a kind for the treatment of process of city domestic refuse percolation liquid.
Background technology
In recent years, along with each metropolitan development, life of urban resident refuse production also increases thereupon, and to 2000, refuse collection total amount was more than 1.4 hundred million tons national year, and increased by the amplitude of 8%.The rubbish total amount of the unordered stacking in the whole nation over the years reaches 6,000,000,000 tons, land occupation 500,000,000 square metres, and severe contamination air and groundwater resource, also can cause the generation of gaseous detonation accident.
At present, the modes such as burning, landfill, compost are mainly contained to the process of rubbish both at home and abroad.Wherein, the advantage such as landfill of life waste, Technical comparing ripe, convenient management lower with its relative costs becomes China's present stage and adopts mode more widely.The a large amount of percolates produced in garbage loading embeading process, the battery especially in rubbish, discarded electrical equipment etc. have increased the weight of the pollution level of percolate.Organism in percolate, nitrogen phosphorus, heavy metallic salt, sulfide content are high, belong to difficult most evil smelly organic waste water, are that the pollution threat of generally acknowledging in the world is large, character is complicated, are difficult to the high-concentration waste water that processes.
The heavy metallic salt dissolved in destructor plant percolate, organophosphorus threaten maximum to human survival, but also the most difficult.Current international and domestic the most frequently used treatment process " reverse osmosis membrane processing technology ", before carrying out " reverse osmosis " process, carry out multistage pre-treatment, reach retain, the suspended substance except in anhydrating, organism, colloidal particles, microorganism, nitrogen, stink and part heavy metal ion etc., be forced through reverse osmosis membrane assembly finally by high-pressure pump and remove most inorganic salt, bacterium, organism, microorganism, percolate is made to reach the purification rate of 99%, purification qualified water qualified discharge.
This technology disadvantage: 1, complex process, investment is large.2, Yu after process 20% concentrated solution need return refuse landfill, the concentration of solvable heavy metallic salt in percolate is progressively increased enrichment, and total mass increases progressively and cannot to eliminate its harm self-evident.
Summary of the invention
The present invention is directed to above-mentioned weak point and the treatment process of a kind of city domestic refuse percolation liquid provided.The production of percolate and shale brick field combines by the method, often produces one piece of standard brick and needs water about 0.5kg, produce the shale brick field of 3,000 ten thousand pieces per year, have process 15000m
3the potentiality of percolate.
For achieving the above object, the technical solution adopted for the present invention to solve the technical problems is:
A treatment process for city domestic refuse percolation liquid, comprises the following steps:
(1) percolate is collected;
(2) percolate is sent into cultivation aeration tank, then in cultivation aeration tank, add complex microorganism preparations, constantly blast pressurized air, aeration cultivates 48h;
(3) percolate of cultivation 48h is pumped into pH value and regulate aeration tank, regulate the pH to 6.8-7.2 of percolate with milk of lime, further aeration 12h;
(4) sterilizing in vitrified brick roasting waste heat boiler is uninterruptedly pumped into, except allergen by processing through step (3) percolate obtained;
(5) percolate after sterilizing and shale powder are mixed, in the half-dried plastic extruding molding machine of vacuum, be extruded into brick;
(6) drying kiln is sent in adobe to dry, then roasting, maturing temperature is 800-850 DEG C.
Further, in order to remove the ammonia nitrogen thing in percolate, sulfide, removing foul smell, complex microorganism preparations is added in cultivation aeration tank, said preparation is yeast, nitrobacteria, the mixed bacterial of genus bacillus, the microbial inoculum amount added is 5/10000ths of percolate, then pressurized air is blasted, pressurized air voltage supply 0.6-0.7MPa, so both reach the demand that flora breeding consumption is supported, the object of aeration can be reached again, the ammonia nitrogen thing in most of percolate can be consumed in flora reproductive process, sulfide, aeration process also discharges a part of ammonia nitrogen thing and sulfide, reach the ammonia nitrogen thing of minimizing more than 90% and the object of sulfide, basic removing foul smell,
Further, in order to eliminate the allergen in percolate, percolate is placed in the sterilizing of vitrified brick roasting waste heat boiler, sterilising temp is 80-100 DEG C, and sterilization time is 2.5h;
Further, in step (4), percolate and shale powder mix, and percolate proportion is the 14-16% of total amount.
The treatment process of a kind of city domestic refuse percolation liquid provided by the invention, has following several beneficial effect:
(1) treated city domestic refuse percolation liquid is used for the production of shale brick field by the present invention, and both combine, and domestic refuse is better processed.
(2) use biotechnological formulation consumes ammonia nitrogen thing, the sulfide in percolate, decreases the generation of foul smell, is conducive to cleaning ambient, and this process operation is simple, and cost is low, and efficiency is high, and can not produce the by product of harm humans and environment.
(3) whole technical process is simple, cost is low, percolate is made to reach zero release, endanger maximum heavy metal salt to the mankind thoroughly to be processed, without the concentrated solution returning destructor plant, the risk in heavy metal free content additive increments polluted underground water source year by year, the risk of non-secondary pollution, has active effect to environmental protect.
Embodiment
Embodiment
A treatment process for city domestic refuse percolation liquid, comprises the following steps:
(1) city domestic refuse percolation liquid 25m is collected
3;
(2) by 25m
3percolate sends into 30m
3cultivation aeration tank, then in cultivation aeration tank, complex microorganism preparations is added, this complex microorganism preparations is yeast, nitrobacteria, the mixed bacterial of genus bacillus, the microbial inoculum amount added is 5/10000ths of percolate, then constantly pressurized air is blasted, under normal temperature, uncovered aeration cultivates 48h, this process had both reached the demand that flora breeding consumption is supported, the object of aeration can be reached again, the ammonia nitrogen thing in most of percolate can be consumed in flora reproductive process, sulfide, aeration process also discharges a part of ammonia nitrogen thing and sulfide, reach the ammonia nitrogen thing of minimizing more than 90% and the object of sulfide, basic removing foul smell,
(3) percolate of cultivation 48h is pumped into pH value and regulate aeration tank, because the slightly biased acidity of the pH of percolate, for 5.5-6.5, therefore the pH of the percolate in milk of lime regulating step (1) after aeration is cultivated is used, its pH value is made to be 6.8-7.2, further aeration 12h, gets rid of the residual content of ammonia nitrogen, sulfide;
(4) in order to eliminate the allergen in percolate, be placed in the sterilizing of vitrified brick roasting waste heat boiler by processing through step (3) percolate obtained, sterilising temp is 80-100 DEG C, and sterilization time is 2.5h;
Pretreated as above journey is intended to eliminate foul smell in percolate, eliminates allergen and harmful bacterium, and organogenous sediments residual in percolate and heavy metal salt can be utilized in subsequent handling;
(5) percolate after sterilizing is mixed with shale powder, biaxial rneader is adopted to stir twice, churning time was at about 8 minutes, wherein, percolate proportion is the 14-16% of total amount, then the percolate after mixing and shale powder mixture is placed in the half-dried plastic extruding molding machine of vacuum and is extruded into brick;
(6) drying kiln is sent in adobe to dry, this process water steam can enter in air, suspended substance in percolate, organism, colloidal particles, microorganism and corpse, heavy metallic salt ion all remain in dried brick, and then by roasting, maturing temperature is 800-850 DEG C.
The present invention's complex microorganism preparations used is liquid, and its composition is the mixed bacterial of yeast, nitrobacteria, genus bacillus, is produced by Wan Hua biological environmental production company.
Claims (4)
1. a treatment process for city domestic refuse percolation liquid, is characterized in that, comprises the following steps:
(1) percolate is collected;
(2) percolate is sent into cultivation aeration tank, then in cultivation aeration tank, add complex microorganism preparations, constantly blast pressurized air, aeration cultivates 48h; Wherein, complex microorganism preparations is the mixed bacterial of yeast, nitrobacteria, genus bacillus, and the microbial inoculum amount added is 5/10000ths of percolate;
(3) percolate of cultivation 48h is pumped into pH value and regulate aeration tank, regulate the pH to 6.8-7.2 of percolate with milk of lime, further aeration 12h;
(4) sterilizing in vitrified brick roasting waste heat boiler is pumped into by processing through step (3) percolate obtained;
(5) percolate after sterilizing and shale powder are mixed, in the half-dried plastic extruding molding machine of vacuum, be extruded into brick;
(6) drying kiln is sent in adobe to dry, then roasting, maturing temperature is 800-850 DEG C.
2. the treatment process of a kind of city domestic refuse percolation liquid according to claim 1, is characterized in that, pressurized air voltage supply 0.6-0.7MPa.
3. the treatment process of a kind of city domestic refuse percolation liquid according to claim 1, is characterized in that, in step (4), sterilising temp is 80-100 DEG C, and sterilization time is 2.5h.
4. the treatment process of a kind of city domestic refuse percolation liquid according to claim 1, is characterized in that, in step (5), percolate proportion is the 14-16% of total amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738508.1A CN104386885B (en) | 2014-12-05 | 2014-12-05 | A kind for the treatment of process of city domestic refuse percolation liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738508.1A CN104386885B (en) | 2014-12-05 | 2014-12-05 | A kind for the treatment of process of city domestic refuse percolation liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104386885A CN104386885A (en) | 2015-03-04 |
| CN104386885B true CN104386885B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410738508.1A Expired - Fee Related CN104386885B (en) | 2014-12-05 | 2014-12-05 | A kind for the treatment of process of city domestic refuse percolation liquid |
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| CN (1) | CN104386885B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110590032A (en) * | 2019-09-17 | 2019-12-20 | 厦门嘉戎技术股份有限公司 | Pretreatment system and method for leachate treatment |
| CN113087303A (en) * | 2021-04-12 | 2021-07-09 | 武汉合创柯林环保有限公司 | Treatment method of household garbage station leachate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528685A (en) * | 2003-09-30 | 2004-09-15 | 深圳市宇力科技有限公司 | House refuse percolate treating method |
| CN101244928A (en) * | 2008-03-17 | 2008-08-20 | 彭强 | Method for producing sewage sludge shale brick |
| KR20130123276A (en) * | 2012-05-02 | 2013-11-12 | 서희동 | Method for treating wastewater and composting of organic wastes |
-
2014
- 2014-12-05 CN CN201410738508.1A patent/CN104386885B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528685A (en) * | 2003-09-30 | 2004-09-15 | 深圳市宇力科技有限公司 | House refuse percolate treating method |
| CN101244928A (en) * | 2008-03-17 | 2008-08-20 | 彭强 | Method for producing sewage sludge shale brick |
| KR20130123276A (en) * | 2012-05-02 | 2013-11-12 | 서희동 | Method for treating wastewater and composting of organic wastes |
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|---|---|
| CN104386885A (en) | 2015-03-04 |
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