CN110759761A - Biological treatment method for waste vegetable leaves - Google Patents
Biological treatment method for waste vegetable leaves Download PDFInfo
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- CN110759761A CN110759761A CN201911081541.0A CN201911081541A CN110759761A CN 110759761 A CN110759761 A CN 110759761A CN 201911081541 A CN201911081541 A CN 201911081541A CN 110759761 A CN110759761 A CN 110759761A
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- 239000002699 waste material Substances 0.000 title claims abstract description 66
- 235000013311 vegetables Nutrition 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000002351 wastewater Substances 0.000 claims abstract description 31
- 239000003895 organic fertilizer Substances 0.000 claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 230000018044 dehydration Effects 0.000 claims abstract description 15
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 15
- 244000005700 microbiome Species 0.000 claims abstract description 14
- 239000000706 filtrate Substances 0.000 claims description 96
- 238000001914 filtration Methods 0.000 claims description 54
- 241000894006 Bacteria Species 0.000 claims description 41
- 238000005273 aeration Methods 0.000 claims description 20
- 241001148471 unidentified anaerobic bacterium Species 0.000 claims description 12
- 241001148470 aerobic bacillus Species 0.000 claims description 9
- 230000003311 flocculating effect Effects 0.000 claims description 9
- 239000002244 precipitate Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 4
- 238000004062 sedimentation Methods 0.000 claims description 4
- 230000001954 sterilising effect Effects 0.000 claims description 4
- 238000005187 foaming Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000000084 colloidal system Substances 0.000 claims description 2
- 238000000855 fermentation Methods 0.000 claims description 2
- 230000004151 fermentation Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000011368 organic material Substances 0.000 claims 1
- 238000010170 biological method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 241000235342 Saccharomycetes Species 0.000 description 3
- 241000193830 Bacillus <bacterium> Species 0.000 description 2
- 241000186146 Brevibacterium Species 0.000 description 2
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 241000589291 Acinetobacter Species 0.000 description 1
- 241000186361 Actinobacteria <class> Species 0.000 description 1
- 241000588986 Alcaligenes Species 0.000 description 1
- 241000223651 Aureobasidium Species 0.000 description 1
- 241000193403 Clostridium Species 0.000 description 1
- 241000605056 Cytophaga Species 0.000 description 1
- 241000589565 Flavobacterium Species 0.000 description 1
- 241000186660 Lactobacillus Species 0.000 description 1
- 241000186359 Mycobacterium Species 0.000 description 1
- 241000588769 Proteus <enterobacteria> Species 0.000 description 1
- 241000947836 Pseudomonadaceae Species 0.000 description 1
- 241000589516 Pseudomonas Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001461 cytolytic effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F5/00—Fertilisers from distillery wastes, molasses, vinasses, sugar plant or similar wastes or residues, e.g. from waste originating from industrial processing of raw material of agricultural origin or derived products thereof
- C05F5/002—Solid waste from mechanical processing of material, e.g. seed coats, olive pits, almond shells, fruit residue, rice hulls
-
- 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
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
-
- 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
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F3/28—Anaerobic digestion 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
- C02F3/28—Anaerobic digestion processes
- C02F3/286—Anaerobic digestion processes including two or more steps
-
- 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
- C02F3/30—Aerobic and anaerobic 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
- C02F3/347—Use of yeasts or fungi
-
- 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
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Botany (AREA)
- Hydrology & Water Resources (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a biological treatment method for waste vegetable leaves, which comprises the steps of crushing the waste vegetable leaves, and then carrying out squeezing dehydration to obtain waste residues; and adding microorganisms into the waste residues, uniformly mixing, and fermenting for 7-8 days to obtain the organic fertilizer. According to the invention, waste vegetable leaves are fermented by a biological method to produce the obtained organic fertilizer, so that waste is recycled, the problem that the environment is influenced by discarding the waste vegetable leaves is solved, and the produced organic fertilizer has good quality; according to the invention, by adding various microorganisms, the wastewater in the waste vegetable leaf treatment process is treated for multiple times, the treated wastewater can be directly discharged, and the method has the advantage of excellent treatment effect.
Description
Technical Field
The invention belongs to the technical field of waste treatment, and particularly relates to a biological treatment method for waste vegetable leaves.
Background
Vegetable production, processing enterprise can produce a large amount of useless vegetable leaves in the production process, and there is the phenomenon of wasting of resources in these useless vegetable leaves handle as rubbish, though prior art also has the useless vegetable leaves as raw materials to produce the fertilizer, it has the problem that production cycle is longer, the poor quality, and to the waste water that produces in the fertilizer production process, prior art adopts the chemical method to handle mostly, and treatment cost is higher. For this reason, it is necessary to develop a biological treatment method for waste vegetable leaves capable of solving the above problems.
Disclosure of Invention
The invention aims to provide a biological treatment method for waste vegetable leaves.
The object of the invention is achieved by the following steps:
A. pretreatment: firstly, crushing waste vegetable leaves, and then carrying out squeezing dehydration to obtain waste residues;
B. preparing an organic fertilizer: and adding microorganisms into the waste residues, uniformly mixing, and fermenting for 7-8 days to obtain the organic fertilizer.
The invention has the beneficial effects that: according to the invention, waste vegetable leaves are fermented by a biological method to produce the obtained organic fertilizer, so that waste is recycled, the problem that the environment is influenced by discarding the waste vegetable leaves is solved, and the produced organic fertilizer has good quality; according to the invention, by adding various microorganisms, the wastewater in the waste vegetable leaf treatment process is treated for multiple times, the treated wastewater can be directly discharged, and the method has the advantage of excellent treatment effect.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to be limiting in any way, and any modifications or alterations based on the teachings of the present invention are intended to fall within the scope of the present invention.
The invention comprises the following steps:
A. pretreatment: firstly, crushing waste vegetable leaves, and then carrying out squeezing dehydration to obtain waste residues;
B. preparing an organic fertilizer: and adding microorganisms into the waste residues, uniformly mixing, and fermenting for 7-8 days to obtain the organic fertilizer.
Preferably, after the waste vegetable leaves in the step A are crushed, microorganisms are added and mixed uniformly, and then squeezing and dewatering are carried out.
Preferably, the microorganisms added after the leaves of the waste vegetables in the step A are crushed are cellulolytic bacteria.
Preferably, the press dewatering in the step A is twice pressing.
Preferably, during the fermentation in the step B, the material is turned over.
Preferably, the microorganism in step B is yeast.
Preferably, the method for treating the wastewater generated by the press dehydration in the step A comprises the following steps:
s1, adding decomposing bacteria and flocculating bacteria into the wastewater to decompose organic matters in the wastewater and generate flocculate, and filtering by using a plate filter to obtain filtrate;
s2, adding decomposing bacteria into the filtrate to decompose organic matters in the filtrate, and filtering by a plate filter to obtain filtrate;
s3, adding aerobic bacteria into the filtrate, then carrying out aeration treatment, and filtering the wastewater after the wastewater generates precipitates to obtain filtrate;
s4, adding decomposing bacteria into the filtrate, then carrying out aeration treatment, filtering the wastewater after generating precipitates, then carrying out aeration on the filtrate, then filtering the filtrate by a biomembrane filter, then treating the filtrate under anaerobic conditions, and then filtering the filtrate by a biofilter to obtain filtrate;
s5, adding anaerobic bacteria and facultative bacteria into the filtrate, treating under anaerobic conditions, and filtering by a biofilter to obtain filtrate;
s6, adding aerobic bacteria into the filtrate, then carrying out aeration treatment, and filtering by a biofilter to obtain filtrate;
s7, adding anaerobic bacteria and facultative bacteria into the filtrate, treating under an anaerobic condition, and filtering through a valveless filter to obtain filtrate;
s8, adding flocculating bacteria into the filtrate to enable flocculate to be generated in the filtrate, then squeezing and filtering, carrying out aeration treatment on the filtrate, and then filtering to obtain filtrate;
s9, adding anaerobic bacteria and facultative bacteria into the filtrate, treating under anaerobic conditions, filtering twice by a valveless filter, aerating the filtrate twice, sending into a sedimentation filter, filtering by the valveless filter, sterilizing by ultraviolet rays, and discharging.
Preferably, after the organic matters in the wastewater are decomposed and flocculated in the step S1, the gel is added for foaming, and then the filtering is carried out by a plate filter.
The decomposing bacteria is one or more of Bacillus bacteria, Proteus bacteria, and Pseudomonas bacteria.
The flocculating bacteria is one or more of yeast, mould and actinomycetes.
The aerobic bacteria are one or more of Acinetobacter, Alcaligenes, Brevibacterium, Aureobasidium, Karmamonas, Cytophaga, Flavobacterium, Micromyceliophthora, Pseudomonadaceae, and Coccomydia.
The anaerobe is one or more of Clostridium bacteria, Mycobacterium bacteria, methanogen Brevibacterium bacteria, and methanogen bacteria.
The facultative bacteria are one or more of lactobacillus bacteria and bacillus bacteria.
Preferably, the step of S5 is repeated 2 times.
Preferably, the step of S6 is repeated 2 times.
Preferably, the step of S7 is repeated 2 times.
The present invention will be further described with reference to examples 1 to 7.
Example 1
A biological treatment method for waste vegetable leaves comprises the following steps:
A. pretreatment: firstly, crushing waste vegetable leaves, and then carrying out squeezing dehydration to obtain waste residues;
B. preparing an organic fertilizer: adding microorganisms into the waste residues, uniformly mixing, and fermenting for 7 days to obtain the organic fertilizer.
Example 2
A biological treatment method for waste vegetable leaves comprises the following steps:
A. pretreatment: firstly, crushing waste vegetable leaves, and then carrying out squeezing dehydration to obtain waste residues;
B. preparing an organic fertilizer: adding microorganisms into the waste residues, uniformly mixing, and fermenting for 8 days to obtain the organic fertilizer.
Example 3
A biological treatment method for waste vegetable leaves comprises the following steps:
A. pretreatment: firstly, crushing waste vegetable leaves, and then carrying out squeezing dehydration to obtain waste residues;
B. preparing an organic fertilizer: adding microorganisms into the waste residues, uniformly mixing, and fermenting for 7.5 days to obtain the organic fertilizer.
Example 4
A biological treatment method for waste vegetable leaves comprises the following steps:
A. pretreatment: firstly, crushing waste vegetable leaves, adding cellulose decomposing bacteria, uniformly mixing, and then carrying out squeezing dehydration twice to obtain waste residues;
B. preparing an organic fertilizer: adding microorganisms into the waste residues, uniformly mixing, and fermenting for 7 days to obtain the organic fertilizer.
Example 5
A biological treatment method for waste vegetable leaves comprises the following steps:
A. pretreatment: firstly, crushing waste vegetable leaves, adding cellulose decomposing bacteria, uniformly mixing, and then carrying out squeezing dehydration twice to obtain waste residues;
B. preparing an organic fertilizer: adding saccharomycetes into the waste residues, uniformly mixing, and fermenting for 8 days to obtain the organic fertilizer.
Example 6
A biological treatment method for waste vegetable leaves comprises the following steps:
A. pretreatment: firstly, crushing waste vegetable leaves, adding cellulose decomposing bacteria, uniformly mixing, and then carrying out squeezing dehydration twice to obtain waste residues;
B. preparing an organic fertilizer: adding saccharomycetes into the waste residues, uniformly mixing, and fermenting for 7.5 days to obtain an organic fertilizer;
the method for treating the wastewater generated by the squeezing dehydration in the step A comprises the following steps:
s1, adding decomposing bacteria and flocculating bacteria into the wastewater to decompose organic matters in the wastewater and generate flocculate, and filtering by using a plate filter to obtain filtrate;
s2, adding decomposing bacteria into the filtrate to decompose organic matters in the filtrate, and filtering by a plate filter to obtain filtrate;
s3, adding aerobic bacteria into the filtrate, then carrying out aeration treatment, and filtering the wastewater after the wastewater generates precipitates to obtain filtrate;
s4, adding decomposing bacteria into the filtrate, then carrying out aeration treatment, filtering the wastewater after generating precipitates, then carrying out aeration on the filtrate, then filtering the filtrate by a biomembrane filter, then treating the filtrate under anaerobic conditions, and then filtering the filtrate by a biofilter to obtain filtrate;
s5, adding anaerobic bacteria and facultative bacteria into the filtrate, treating under anaerobic conditions, and filtering by a biofilter to obtain filtrate;
s6, adding aerobic bacteria into the filtrate, then carrying out aeration treatment, and filtering by a biofilter to obtain filtrate;
s7, adding anaerobic bacteria and facultative bacteria into the filtrate, treating under an anaerobic condition, and filtering through a valveless filter to obtain filtrate;
s8, adding flocculating bacteria into the filtrate to enable flocculate to be generated in the filtrate, then squeezing and filtering, carrying out aeration treatment on the filtrate, and then filtering to obtain filtrate;
s9, adding anaerobic bacteria and facultative bacteria into the filtrate, treating under anaerobic conditions, filtering twice by a valveless filter, aerating the filtrate twice, sending into a sedimentation filter, filtering by the valveless filter, sterilizing by ultraviolet rays, and discharging.
Example 7
A biological treatment method for waste vegetable leaves comprises the following steps:
A. pretreatment: firstly, crushing waste vegetable leaves, adding cellulose decomposing bacteria, uniformly mixing, and then carrying out squeezing dehydration twice to obtain waste residues;
B. preparing an organic fertilizer: adding saccharomycetes into the waste residues, uniformly mixing, and fermenting for 7 days to obtain an organic fertilizer;
the method for treating the wastewater generated by the squeezing dehydration in the step A comprises the following steps:
s1, adding decomposing bacteria and flocculating bacteria into the wastewater to decompose organic matters in the wastewater and generate flocculate, adding colloid for foaming, and filtering by a plate filter to obtain filtrate;
s2, adding decomposing bacteria into the filtrate to decompose organic matters in the filtrate, and filtering by a plate filter to obtain filtrate;
s3, adding aerobic bacteria into the filtrate, then carrying out aeration treatment, and filtering the wastewater after the wastewater generates precipitates to obtain filtrate;
s4, adding decomposing bacteria into the filtrate, then carrying out aeration treatment, filtering the wastewater after generating precipitates, then carrying out aeration on the filtrate, then filtering the filtrate by a biomembrane filter, then treating the filtrate under anaerobic conditions, and then filtering the filtrate by a biofilter to obtain filtrate;
s5, adding anaerobic bacteria and facultative bacteria into the filtrate, treating under anaerobic conditions, and filtering by a biofilter to obtain filtrate; the step of S5 is repeated for 2 times;
s6, adding aerobic bacteria into the filtrate, then carrying out aeration treatment, and filtering by a biofilter to obtain filtrate; the step of S6 is repeated for 2 times;
s7, adding anaerobic bacteria and facultative bacteria into the filtrate, treating under an anaerobic condition, and filtering through a valveless filter to obtain filtrate; the step of S7 is repeated for 2 times;
s8, adding flocculating bacteria into the filtrate to enable flocculate to be generated in the filtrate, then squeezing and filtering, carrying out aeration treatment on the filtrate, and then filtering to obtain filtrate;
s9, adding anaerobic bacteria and facultative bacteria into the filtrate, treating under anaerobic conditions, filtering twice by a valveless filter, aerating the filtrate twice, sending into a sedimentation filter, filtering by the valveless filter, sterilizing by ultraviolet rays, and discharging.
Claims (9)
1. A biological treatment method for waste vegetable leaves is characterized by comprising the following steps:
A. pretreatment: firstly, crushing waste vegetable leaves, and then carrying out squeezing dehydration to obtain waste residues;
B. preparing an organic fertilizer: and adding microorganisms into the waste residues, uniformly mixing, and fermenting for 7-8 days to obtain the organic fertilizer.
2. The method for the biological treatment of waste vegetable leaves as claimed in claim 1, wherein the step a is carried out by crushing the waste vegetable leaves, adding the microorganism thereto, uniformly mixing, and then dehydrating by pressing.
3. The biological treatment method for waste vegetable leaves as set forth in claim 1, wherein the press dewatering in the step a is twice pressing.
4. The method for the biological treatment of waste vegetable leaves as set forth in claim 1, wherein the material is tumbled during the fermentation in the step B.
5. The biological treatment method for waste vegetable leaves according to claim 1, characterized in that the treatment method of the waste water produced by press dehydration in the step a comprises the steps of:
s1, adding decomposing bacteria and flocculating bacteria into the wastewater to decompose organic matters in the wastewater and generate flocculate, and filtering by using a plate filter to obtain filtrate;
s2, adding decomposing bacteria into the filtrate to decompose organic matters in the filtrate, and filtering by a plate filter to obtain filtrate;
s3, adding aerobic bacteria into the filtrate, then carrying out aeration treatment, and filtering the wastewater after the wastewater generates precipitates to obtain filtrate;
s4, adding decomposing bacteria into the filtrate, then carrying out aeration treatment, filtering the wastewater after generating precipitates, then carrying out aeration on the filtrate, then filtering the filtrate by a biomembrane filter, then treating the filtrate under anaerobic conditions, and then filtering the filtrate by a biofilter to obtain filtrate;
s5, adding anaerobic bacteria and facultative bacteria into the filtrate, treating under anaerobic conditions, and filtering by a biofilter to obtain filtrate;
s6, adding aerobic bacteria into the filtrate, then carrying out aeration treatment, and filtering by a biofilter to obtain filtrate;
s7, adding anaerobic bacteria and facultative bacteria into the filtrate, treating under an anaerobic condition, and filtering through a valveless filter to obtain filtrate;
s8, adding flocculating bacteria into the filtrate to enable flocculate to be generated in the filtrate, then squeezing and filtering, carrying out aeration treatment on the filtrate, and then filtering to obtain filtrate;
s9, adding anaerobic bacteria and facultative bacteria into the filtrate, treating under anaerobic conditions, filtering twice by a valveless filter, aerating the filtrate twice, sending into a sedimentation filter, filtering by the valveless filter, sterilizing by ultraviolet rays, and discharging.
6. The method of claim 5, wherein the step S1 is performed by adding a colloid for foaming after the organic materials in the waste water are decomposed to produce flocs, and filtering the flocs through a plate filter.
7. The method for the biological treatment of waste vegetable leaves as claimed in claim 5, wherein the step of S5 is repeated 2 times.
8. The method for the biological treatment of waste vegetable leaves as claimed in claim 5, wherein the step of S6 is repeated 2 times.
9. The method for the biological treatment of waste vegetable leaves as claimed in claim 5, wherein the step of S7 is repeated 2 times.
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| CN201911081541.0A CN110759761A (en) | 2019-11-07 | 2019-11-07 | Biological treatment method for waste vegetable leaves |
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