CN111233196A - Garbage percolation concentrated solution adsorption fermentation dehydration solidification process - Google Patents
Garbage percolation concentrated solution adsorption fermentation dehydration solidification process Download PDFInfo
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/318—Preparation characterised by the starting materials
- C01B32/324—Preparation characterised by the starting materials from waste materials, e.g. tyres or spent sulfite pulp liquor
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- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
- C10L5/445—Agricultural waste, e.g. corn crops, grass clippings, nut shells or oil pressing residues
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
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- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
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- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- 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
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention provides a garbage percolation concentrated solution adsorption fermentation dehydration solidification process, which comprises the steps of coarse filtration, fine filtration, mixing, fermentation, granulation and carbonization, wherein by adding biomass straws and utilizing a microbial decomposition agent for fermentation and natural dehydration, microbial organic fertilizers, carbon-based compound fertilizers, biomass fuels and special activated carbon for sewage treatment which meet the national standard can be produced. The aims of treating waste by waste and changing waste into valuable are fulfilled. Is the treatment of reducing, harmlessness and recycling of hazardous wastes. Accords with national policies of renewable resource utilization, recycling economy and environmental protection industry, and has good economic benefit and social benefit.
Description
Technical Field
The invention relates to the technical field of garbage treatment, in particular to a garbage percolation concentrated solution adsorption fermentation dehydration solidification process.
Background
The garbage percolation concentrated solution is a product obtained by concentrating garbage fermentation liquor in a garbage pool after membrane filtration. The concentrated solution accounts for about 30% of the total weight of the stock solution. The method concentrate backward flow landfill yard of handling at present mixes repeated treatment with the landfill leachate of new production, and along with the increase of time, landfill leachate's concentration can be higher and higher in fact, and membrane filtration can be more and more difficult, and discharge water yield up to standard can constantly reduce, and treatment cost can constantly increase.
The current method for deeply treating the concentrated solution at home comprises the following steps: the method can be used for treating the landfill leachate for concentration, but the investment equipment of fixed assets is complex, repeated treatment is carried out, the energy consumption is high, no additional value is provided, and governments and enterprises can not bear the treatment.
In view of the current situation of landfill leachate concentration treatment at present, new processing equipment is developed by taking the cooperation of other industry experiences and scientific research units as reference. Different production processes are adopted, the investment is low, the effect is quick, the garbage percolation concentrated solution can be thoroughly solved and reasonably utilized, the waste is changed into valuable, and the waste is turned into the benefit.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a garbage percolation concentrated solution adsorption fermentation dehydration solidification process, so as to solve the problems in the background technology.
The technical problem solved by the invention is realized by adopting the following technical scheme:
1. a garbage percolation concentrate adsorption fermentation dehydration solidification process comprises the steps of coarse filtration, fine filtration, mixing, fermentation, granulation and carbonization, and is characterized in that:
the method mainly comprises the following steps:
step one, coarse filtration: firstly, adding a flocculating agent and a thickening agent into the landfill leachate, and then roughly filtering the landfill leachate;
step two, fine filtration: and (3) filtering the landfill leachate after finely filtering by adopting a nano fine filtration membrane filtering system, detecting and separating the landfill leachate after finely filtering, discharging the water quality meeting the discharge standard, and further treating the nano membrane filtration concentrated solution which does not meet the standard.
Step three, mixing: mixing the nano-membrane filtration concentrated solution with the organic and inorganic solids and the filter material of the coarse filtration garbage, adding biomass straw powder, and controlling the water content of the mixture to be below 60%.
Step four, fermentation: adding microorganism rapid curing agent, covering with nanometer membrane, and fermenting to reduce water content to below 25%.
Step five, granulating: granulating the mixture of the garbage concentrated solution and the straws with water content of less than 25%, and naturally reducing the water content of the granules to be less than 20% after heating, gasifying and cooling the granules in the processing process of the granules to prepare the active organic compound fertilizer and the biomass granular fuel.
Step six, carbonization: carbonizing the granules to prepare the carbon-based compound fertilizer, and activating to prepare the special activated carbon for sewage treatment.
Further, the main process of performing coarse filtration on the garbage in the first step is as follows:
(1) performing primary filtration on the landfill leachate by using a corrosion-resistant special sewage cloth bag;
(2) performing secondary filtration on the landfill leachate by using a biomass filter element filter;
(3) filtering the landfill leachate for the third time by using a hypha filter element filter;
(4) performing fourth filtration on the landfill leachate by using a diatomite filter;
(5) performing fifth filtration on the landfill leachate by using an active attapulgite filter;
(6) performing sixth filtration on the landfill leachate by using an active bentonite filter;
(7) performing seventh filtration on the landfill leachate by using a special activated carbon filter for sludge;
(8) and carrying out eighth filtration on the landfill leachate by using a ceramic flat membrane filter.
Further, in the first step, the biomass filter element filter is made of corncobs.
Furthermore, in the first step, the substance used in the hypha filter element filter is thallus discarded after mushroom and the like grow.
Compared with the prior art, the invention has the beneficial effects that:
this application makes up into the filtration treatment device of a whole set of rubbish filtration concentrate through a plurality of devices, can effectually handle landfill leachate through the device, processes landfill leachate simultaneously, makes active microorganism organic compound fertilizer, biomass fuel, charcoal base compound fertilizer and the special active carbon of sewage with landfill leachate.
The filter cloth and the filter material are adopted for pretreatment, so that the concentration of penetrating fluid is improved, the resistance is reduced, the working efficiency of membrane nanofiltration is improved, and the environmental-friendly water yield reaching the standard is increased. And the standard water quality is ensured to be generated through multi-layer and multi-step permeation and filtration.
The pretreated solid waste and concentrated solution can be used for producing microbial organic fertilizer, carbon-based compound fertilizer, biomass fuel and special activated carbon for sewage treatment, which meet the national standard, by adding biomass straws and utilizing a microbial decomposition agent for fermentation and natural dehydration. The aims of treating waste by waste and changing waste into valuable are fulfilled. Is the treatment of reducing, harmlessness and recycling of hazardous wastes. Accords with national policies of renewable resource utilization, recycling economy and environmental protection industry, and has good economic benefit and social benefit.
Drawings
FIG. 1 is a flow chart of the present invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described below by combining the specific drawings.
As shown in figure 1, the garbage percolation concentrated solution adsorption fermentation dehydration solidification process comprises the steps of coarse filtration, fine filtration, mixing, fermentation, granulation and carbonization, and can produce microbial organic fertilizer, carbon-based compound fertilizer, biomass fuel and special activated carbon for sewage treatment which meet the national standard by adding biomass straws and utilizing a microbial decomposition agent for fermentation and natural dehydration. The aims of treating waste by waste and changing waste into valuable are fulfilled.
The method mainly comprises the following steps:
step one, coarse filtration: firstly, adding a flocculating agent and a thickening agent into the landfill leachate, and then roughly filtering the landfill leachate;
(1) performing primary filtration on the landfill leachate by using a corrosion-resistant special sewage cloth bag;
(2) the biomass filter element filter is used for carrying out secondary filtration on the landfill leachate, the used substance is corncob, and the corncob is used as filling in the biomass filter element filter because the corncob has adsorbability and has the advantages of uniform tissue, proper hardness, good toughness, strong water absorbability, good wear resistance and the like;
(3) the garbage leachate is filtered for the third time by using a hypha filter element filter, the used substances in the hypha filter element filter are thalli discarded after the growth of mushrooms and the like, and the thalli discarded after the growth of the mushrooms and the like have adsorbability, so that the garbage leachate is conveniently filtered;
(4) performing fourth filtration on the landfill leachate by using a diatomite filter;
(5) performing fifth filtration on the landfill leachate by using an active attapulgite filter;
(6) performing sixth filtration on the landfill leachate by using an active bentonite filter;
(7) performing seventh filtration on the landfill leachate by using a special activated carbon filter for sludge;
(8) and carrying out eighth filtration on the landfill leachate by using a ceramic flat membrane filter.
Step two, fine filtration: and (3) filtering the landfill leachate after finely filtering by adopting a nano fine filtration membrane filtering system, detecting and separating the landfill leachate after finely filtering, discharging the water quality meeting the discharge standard, and further treating the nano membrane filtration concentrated solution which does not meet the standard.
Step three, mixing: mixing the nano-membrane filtration concentrated solution with the organic and inorganic solids and the filter material of the coarse filtration garbage, adding biomass straw powder, and controlling the water content of the mixture to be below 60%.
Step four, fermentation: adding microorganism rapid curing agent, covering with nanometer membrane, and fermenting to reduce water content to below 25%.
Step five, granulating: granulating the mixture of the garbage concentrated solution and the straws with water content of less than 25%, and naturally reducing the water content of the granules to be less than 20% after heating, gasifying and cooling the granules in the processing process of the granules to prepare the active organic compound fertilizer and the biomass granular fuel.
Step six, carbonization: carbonizing the granules to prepare the carbon-based compound fertilizer, and activating to prepare the special activated carbon for sewage treatment.
The foregoing shows and describes the general principles and broad features of the present invention, together with the advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A garbage percolation concentrate adsorption fermentation dehydration solidification process comprises the steps of coarse filtration, fine filtration, mixing, fermentation, granulation and carbonization, and is characterized in that:
the method mainly comprises the following steps:
step one, coarse filtration: firstly, adding a flocculating agent and a thickening agent into the landfill leachate, and then roughly filtering the landfill leachate;
step two, fine filtration: filtering the garbage percolate by adopting a nano fine filtration membrane filtering system, detecting and separating the garbage percolate after fine filtration, discharging the water quality meeting the discharge standard, and further treating the nano membrane filtration concentrated solution not meeting the standard;
step three, mixing: mixing the nano-membrane filtration concentrated solution with the organic and inorganic solids and the filter material of the coarse filtration garbage, adding biomass straw powder, and controlling the water content of the mixture to be below 60%;
step four, fermentation: adding microorganism rapid curing agent, covering with nanometer membrane, and fermenting until water content is reduced to below 25%;
step five, granulating: granulating the mixture of the garbage concentrated solution and the straws with water content of less than 25%, and naturally reducing the water content of the granules to be less than 20% after heating, gasifying and cooling the granules in the processing process of the granules to prepare an active organic compound fertilizer and a biomass granular fuel;
step six, carbonization: carbonizing the granules to prepare the carbon-based compound fertilizer, and activating to prepare the special activated carbon for sewage treatment.
2. The process of claim 1, wherein the garbage percolation concentrate is subjected to adsorption, fermentation, dehydration and solidification, and is characterized in that: the main process of coarsely filtering the garbage in the first step is as follows:
(1) performing primary filtration on the landfill leachate by using a corrosion-resistant special sewage cloth bag;
(2) performing secondary filtration on the landfill leachate by using a biomass filter element filter;
(3) filtering the landfill leachate for the third time by using a hypha filter element filter;
(4) performing fourth filtration on the landfill leachate by using a diatomite filter;
(5) performing fifth filtration on the landfill leachate by using an active attapulgite filter;
(6) performing sixth filtration on the landfill leachate by using an active bentonite filter;
(7) performing seventh filtration on the landfill leachate by using a special activated carbon filter for sludge;
(8) and carrying out eighth filtration on the landfill leachate by using a ceramic flat membrane filter.
3. The process of claim 2, wherein the garbage percolation concentrate is subjected to adsorption, fermentation, dehydration and solidification, and is characterized in that: in the first step, the biomass filter element filter uses corncobs as substances.
4. The process of claim 2, wherein the garbage percolation concentrate is subjected to adsorption, fermentation, dehydration and solidification, and is characterized in that: in the first step, the used substances in the hypha filter element filter are thalli discarded after mushroom and the like grow.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111689614A (en) * | 2020-06-28 | 2020-09-22 | 烟台大学 | Sweet potato starch processing wastewater resource utilization system and treatment technology |
| CN113372174A (en) * | 2021-06-08 | 2021-09-10 | 江苏汇龙水务集团有限公司 | Preparation method of organic fertilizer by taking agricultural and forestry wastes and leachate as raw materials |
| CN114477710A (en) * | 2021-12-22 | 2022-05-13 | 镇江市给排水管理处 | Dewatering system and method for automatically optimizing flocculation-macroporous anti-blocking regenerated filter mass |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN113372174A (en) * | 2021-06-08 | 2021-09-10 | 江苏汇龙水务集团有限公司 | Preparation method of organic fertilizer by taking agricultural and forestry wastes and leachate as raw materials |
| CN114477710A (en) * | 2021-12-22 | 2022-05-13 | 镇江市给排水管理处 | Dewatering system and method for automatically optimizing flocculation-macroporous anti-blocking regenerated filter mass |
| CN114477710B (en) * | 2021-12-22 | 2022-11-11 | 镇江市给排水管理处 | Dewatering system and method for automatically optimizing flocculation-macroporous anti-blocking regenerated filter mass |
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Inventor after: Zeng Changwu Inventor after: Zhang Xiaokan Inventor after: Ding Zhahang Inventor before: Zeng Changwu Inventor before: Zhang Xiaokan |
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Application publication date: 20200605 |