CN111606439A - Tail vegetable recycling treatment method and system - Google Patents
Tail vegetable recycling treatment method and system Download PDFInfo
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- CN111606439A CN111606439A CN202010503790.0A CN202010503790A CN111606439A CN 111606439 A CN111606439 A CN 111606439A CN 202010503790 A CN202010503790 A CN 202010503790A CN 111606439 A CN111606439 A CN 111606439A
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- 235000013311 vegetables Nutrition 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004064 recycling Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 197
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000012528 membrane Substances 0.000 claims abstract description 56
- 239000003337 fertilizer Substances 0.000 claims abstract description 55
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 53
- 239000002699 waste material Substances 0.000 claims abstract description 48
- 238000002156 mixing Methods 0.000 claims abstract description 24
- 235000015097 nutrients Nutrition 0.000 claims abstract description 24
- 239000011159 matrix material Substances 0.000 claims abstract description 20
- 238000000926 separation method Methods 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000012216 screening Methods 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 8
- 239000002351 wastewater Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 5
- 238000007873 sieving Methods 0.000 claims description 4
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 claims description 3
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 claims description 3
- 241000499436 Brassica rapa subsp. pekinensis Species 0.000 claims description 3
- 239000002002 slurry Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000000855 fermentation Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 241000255925 Diptera Species 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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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
-
- 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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Pest Control & Pesticides (AREA)
- Mechanical Engineering (AREA)
- Botany (AREA)
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a method and a system for recycling waste vegetables, wherein the method comprises the steps of crushing the waste vegetables, and carrying out solid-liquid separation on the crushed waste vegetables to obtain waste vegetable water and waste vegetable residues; screening the waste water by using a screen 1 to remove particles which are harmful to a reverse osmosis membrane greatly, treating the screened liquid by using VSEP (vacuum freeze treatment), treating the obtained clear liquid by using the reverse osmosis membrane 1, treating the clear liquid treated by using the reverse osmosis membrane 1 by using the reverse osmosis membrane 2 to obtain clear water, returning the concentrated water treated by using the reverse osmosis membrane 1 to VSEP (vacuum freeze treatment), and returning the concentrated water treated by using the reverse osmosis membrane 2 to reverse osmosis membrane 1 for treatment; uniformly mixing the waste vegetable residues obtained after solid-liquid separation and concentrated water treated by VSEP according to a predetermined proportion, and fermenting to obtain a liquid fertilizer matrix; and screening the liquid fertilizer matrix through a screen 2 with a corresponding aperture, and mixing the screened liquid with the added corresponding nutrient solution according to the corresponding liquid fertilizer production requirement to prepare the corresponding specific liquid fertilizer. The method is simple, efficient, pollution-free, low in cost and high in added value.
Description
Technical Field
The invention relates to a method and a system for treating tail vegetables, in particular to an integrated method and an integrated system for treating tail vegetables as resources.
Background
Vegetables are necessary for daily life. From the 'vegetable basket' proposed by the department of agriculture in 1998, central and local meat, egg, milk, aquatic product and vegetable production bases, improved variety breeding, feed processing and other service systems are established nationwide to ensure that residents eat fresh vegetables all the year round. The vegetable basket products are continuously and rapidly increased, and the situation of long-term shortage of subsidiary food supply in China is fundamentally changed. The vegetable basket project is surrounded in various places, such as Shandong, Gansu, Yunnan and the like, the supporting strength is increased, the standardization, the facility and the large-scale rapid promotion of the vegetable industry are realized, and the nationwide vegetable planting base is formed. Meanwhile, the matched refrigeration and logistics industry is developed correspondingly.
From vegetable planting bases to supermarket clean vegetables to come into the market, a large amount of defective vegetables and roots, stems, leaves and the like generated during refrigeration and clean vegetable processing become organic wastes, commonly called tail vegetables. According to statistics, the amount of the tail vegetables accounts for about 30-40% of the vegetable yield, and the effective utilization rate is low due to large yield, high water content (the average water content can reach about 95%), low effective components and lack of effective technologies. The soil is poured and buried at will, and after the soil is piled up, rotten and deteriorated, the air, the soil, the river and the underground water are polluted, the landfill site is also overloaded, a large number of mosquitoes and flies are bred, and the living environment and the body health of urban and rural residents are adversely affected. Therefore, the research on the effective utilization of the waste vegetables has important significance for relieving the pollution problem of the waste vegetables.
At present, the process of preparing the biogas by anaerobic fermentation is commonly adopted in the aspect of waste vegetable treatment. The main process comprises pretreatment, anaerobic fermentation and biochemical treatment of biogas slurry of the tailed vegetables. The anaerobic technology is complex to operate and has high technical requirements; meanwhile, the water content of the tailed vegetables is high (the average water content can reach about 95 percent), the effective dry matter is less, the unit biogas production amount is low, and meanwhile, the water content is high, the content of the contained nutrient substances is low, the biogas slurry amount is large (all seasons are produced), and sufficient soil digestion is difficult to achieve. Chinese patent CN 110272923A discloses a method and a system for recycling waste of waste tailstocks, the method comprises cleaning, removing impurities, sorting, pulping, blending materials, hydrolyzing and acidifying, anaerobic methane production and product recycling, wherein the product recycling is to reflux part of biogas slurry to a blending tank and reflux part of biogas slurry to a cstr anaerobic fermentation tank so as to improve the yield of biogas, but even after the product recycling, 50% of biogas slurry is still waiting for further treatment. Therefore, certain projects can only adopt a biochemical mode to treat the biogas slurry as 'wastewater', so that the loss of organic matters, N, P and K nutrients is caused, and meanwhile, the biochemical mode is influenced by the climatic environment and the quality of inlet water, the quality of the treated water is large in fluctuation and unstable, and secondary pollution is caused after the treated water is discharged.
Disclosure of Invention
The invention aims to provide a simple and efficient method and a system for recycling waste vegetables without pollution, low cost and high added value.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a method for recycling waste vegetables, which comprises the following steps:
crushing the waste vegetables firstly, and performing solid-liquid separation on the crushed waste vegetables through a solid-liquid separator to obtain waste vegetable water and waste vegetable residues;
screening the waste water by using a screen 1 to remove particles which are harmful to a reverse osmosis membrane greatly, treating the screened liquid by using VSEP, treating the clear liquid after the VSEP treatment by using the reverse osmosis membrane 1, treating the clear liquid after the reverse osmosis membrane 1 by using a reverse osmosis membrane 2 to obtain clear water, returning the concentrated water after the reverse osmosis membrane 1 to the VSEP treatment, and returning the concentrated water after the reverse osmosis membrane 2 to the reverse osmosis membrane 1 for treatment;
uniformly mixing the waste vegetable residues obtained after solid-liquid separation and concentrated water treated by VSEP according to a predetermined proportion, and fermenting to obtain a liquid fertilizer matrix;
and screening the liquid fertilizer matrix through a corresponding aperture screen 2 according to the liquid fertilizer manufacturing standard, and mixing the screened liquid and the added corresponding nutrient solution according to the corresponding liquid fertilizer production requirement to prepare the corresponding specific liquid fertilizer.
Preferably, the filter residue after being screened by the screen 1, the filter residue which is not fully degraded after being screened by the screen 2, the waste residues obtained after solid-liquid separation and the concentrated water after VSEP treatment are uniformly mixed according to a preset proportion and then fermented to obtain the liquid fertilizer matrix.
Preferably, the method for recycling waste vegetables comprises the following steps:
crushing the waste vegetables firstly, performing solid-liquid separation on the crushed waste vegetables through a solid-liquid separator to obtain waste vegetable water and waste vegetable residues, and feeding the separated waste vegetable water into a collecting tank (tank) for later use;
removing particles which are harmful to a reverse osmosis membrane from the waste vegetable water in the collecting tank by using a screen 1, feeding the screened liquid into a liquid inlet tank, and feeding the screened filter residue into a concentrated liquid tank;
clear liquid obtained after the liquid in the liquid inlet pool (tank) is processed by VSEP enters a clear liquid pool (tank) 1, and concentrated liquid enters a concentrated liquid pool (tank);
clear liquid obtained after the liquid in the clear liquid pool (tank) 1 is treated by the reverse osmosis membrane 1 enters the clear liquid pool (tank) 2, and concentrated liquid is returned into the clear liquid pool (tank);
clear liquid in the clear liquid pool (tank) 2 after being treated by the reverse osmosis membrane 2 enters the clear water pool (tank), and concentrated liquid is returned to the clear liquid pool (tank) 1;
uniformly mixing the waste vegetable residue generated by solid-liquid separation, the filter residue sieved by the screen mesh 1, the filter residue sieved by the screen mesh 2 and concentrated solution treated by VSEP according to a predetermined proportion, and fermenting to obtain a liquid fertilizer matrix;
the liquid fertilizer matrix passes through a corresponding aperture screen 2 according to the standard for manufacturing the liquid fertilizer, the liquid after being screened enters a liquid fertilizer matrix pool (tank), and is mixed into a corresponding specific liquid fertilizer in a mixing pool (tank) according to the corresponding liquid fertilizer production requirement and the corresponding added nutrient solution, and if the filter residue cannot be fully degraded after being screened by the screen 2, the filter residue flows back to a concentrated liquid pool (tank) again for next degradation.
The invention also provides a system for recycling waste vegetables, which comprises: the solid-liquid separator is used for carrying out solid-liquid separation on the crushed Chinese cabbage; a collecting tank (tank) for collecting the waste water separated by the solid-liquid separator; the screen 1 is used for removing particles which are harmful to the reverse osmosis membrane in the liquid in the collecting tank (tank); a liquid inlet tank (tank) for collecting the tailed vegetable water sieved by the screen mesh 1 and the concentrated water treated by the reverse osmosis membrane 1; VSEP for treating a liquid in a liquid intake sump (tank); a clear liquid pool (tank) 1 for collecting clear liquid after VSEP treatment and concentrated water after reverse osmosis membrane 2 treatment; a reverse osmosis membrane 1 for treating the liquid in the clear liquid tank (tank) 1; a clear liquid pool (tank) 2 for collecting clear liquid treated by the reverse osmosis membrane 1; a reverse osmosis membrane 2 for treating the liquid in the clear liquid tank (tank); the clean water tank is used for collecting the clean liquid treated by the reverse osmosis membrane 2; a concentrated solution tank (tank) having a stirrer for mixing the waste vegetable residue produced by the solid-liquid separator, the residue after sieving with the screen 1, the residue after sieving with the screen 2, and concentrated water after separation by VSEP; the screen 2 is used for screening the mixture fermented in the concentrated solution tank according to the standard for preparing the liquid fertilizer; the liquid fertilizer matrix pool (tank) is used for collecting liquid screened by the screen 2; a mixing tank (tank) having a stirrer for mixing the liquid in the liquid fertilizer matrix tank (tank) and the nutrient solution in the nutrient solution tank (tank) to make a specific liquid fertilizer; and the nutrient solution pool (tank) is used for providing nutrient solution required for preparing the specific liquid fertilizer.
Compared with the prior art, the invention has the beneficial effects that:
(1) the water and residue of the tailed vegetable do not fall to the ground.
(2) The waste vegetable water is treated by a full physical method (membrane separation), no chemicals are added, and no secondary pollution is caused.
(3) More than 90 percent of the plant nutrient elements of nitrogen, phosphorus and potassium in the tailvegetable water are returned to the water soluble fertilizer, the leaf fertilizer or the suspended fertilizer again.
(4) A large amount of water contained in a large amount of waste water is directly separated into clear water which can be directly discharged, recycled and even drunk through membrane separation; meanwhile, organic matters, nitrogen, phosphorus and potassium plant nutrient elements in the waste vegetable water are concentrated, so that the utilization value is improved.
(5) The process has simple and effective steps, high automation degree and low cost.
Drawings
FIG. 1 is a schematic flow chart of a method for recycling waste vegetables in accordance with the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a method for recycling waste vegetables, which comprises the following steps:
crushing the collected and transported tail vegetables, performing solid-liquid separation on the crushed tail vegetables through a solid-liquid separator to obtain tail vegetable water and tail vegetable residues, feeding the separated tail vegetable water into a collecting tank (tank), and using the tail vegetable residues for later use;
removing particles which are harmful to a reverse osmosis membrane from the waste vegetable water in the collecting tank by using a screen 1, and feeding the screened liquid into a liquid inlet tank;
clear liquid obtained by processing liquid in the liquid inlet pool (tank) by VSEP (high frequency vibration membrane filtration technology) enters a clear liquid pool (tank) 1, and concentrated liquid enters a concentrated liquid pool (tank);
clear liquid obtained after the liquid in the clear liquid pool (tank) 1 is treated by the reverse osmosis membrane 1 enters the clear liquid pool (tank) 2, and concentrated liquid is returned into the clear liquid pool (tank);
clear liquid in the clear liquid pool (tank) 2 after being treated by the reverse osmosis membrane 2 enters the clear water pool (tank), and concentrated liquid is returned to the clear liquid pool (tank) 1;
the tailing residue generated by solid-liquid separation is metered and sent into the concentrated solution pool (tank), and the concentrated solution pool (tank) is also provided with a stirrer so as to stir, uniformly mix and effectively ferment the concentrated solution and the fed tailing residue. The mixing ratio is determined according to the standard of making liquid fertilizer, and the proportion of the ingredients can be adjusted by adjusting the conveying speed of each material.
The fermented concentrated solution and the mixture of the waste residues of the rape can pass through a corresponding aperture screen 2 according to the standard for preparing the liquid fertilizer, the liquid after being screened enters a liquid fertilizer matrix pool (tank), and is prepared into a corresponding specific liquid fertilizer (a water-soluble fertilizer, a leaf fertilizer or a suspended fertilizer) in the mixing pool (tank) according to the proportion of the requirement for producing the corresponding liquid fertilizer (the water-soluble fertilizer, the leaf fertilizer or the suspended fertilizer) and the corresponding nutrient solution added from the nutrient solution pool (tank), and the mixing pool (tank) is provided with a stirrer so as to be fully and uniformly mixed. If the filter residue can not be fully degraded in the screening process, the filter residue flows back to the concentrated solution pool (tank) again for next degradation.
The invention also provides a waste vegetable resource disposal system, which comprises: the solid-liquid separator is used for carrying out solid-liquid separation on the crushed Chinese cabbage; the collecting tank (tank) is connected with the solid-liquid separator and is used for collecting the waste water separated by the solid-liquid separator; the screen 1 is connected with the collection tank (tank) and is used for removing particles which are harmful to the reverse osmosis membrane in the liquid in the collection tank (tank); a liquid inlet tank (tank) which is connected with the screen mesh 1 and the reverse osmosis membrane 1 and is used for collecting the tailwater sieved by the screen mesh 1 and the concentrated water treated by the reverse osmosis membrane 1; VSEP (high frequency vibration membrane filter technology) connected with the liquid inlet pool (tank) and used for treating liquid in the liquid inlet pool (tank); a clear liquid pool (tank) 1 connected with the VSEP and used for collecting clear liquid treated by the VSEP and concentrated water treated by a reverse osmosis membrane 2; the reverse osmosis membrane 1 is connected with the clear liquid pool (tank) 1 and is used for treating liquid in the clear liquid pool (tank) 1; a clear liquid pool (tank) 2 connected with the reverse osmosis membrane 1 and used for collecting clear liquid treated by the reverse osmosis membrane 1; the reverse osmosis membrane 2 is connected with the clear liquid pool (tank) 2 and is used for treating liquid in the clear liquid pool (tank) 2; the clean water tank is connected with the reverse osmosis membrane 2 and is used for collecting the clean liquid treated by the reverse osmosis membrane 2; a concentrated solution pool (tank) which is provided with a stirrer, is connected with the solid-liquid separator, the screen 1, the VSEP and the screen 2 and is used for mixing the waste vegetable residue generated by the solid-liquid separator, the filter residue sieved by the screen 1, the filter residue sieved by the screen 2 and concentrated water separated by the VSEP; the screen 2 is connected with the concentrated solution tank (jar) and is used for screening the fermented mixture in the concentrated solution tank (jar) according to the standard for preparing liquid fertilizer; the liquid fertilizer matrix pool (tank) is connected with the screen 2 and is used for collecting liquid screened by the screen 2; a mixing tank (tank) which is provided with a stirrer, is connected with the liquid fertilizer matrix tank and the nutrient solution tank (tank) and is used for mixing the liquid in the liquid fertilizer matrix tank (tank) and the nutrient solution in the nutrient solution tank (tank) to prepare specific liquid fertilizer; and the nutrient solution pool (tank) is used for providing nutrient solution required for preparing the specific liquid fertilizer.
Claims (4)
1. A method for recycling waste vegetables is characterized by comprising the following steps: the method comprises the following steps:
crushing the waste vegetables firstly, and performing solid-liquid separation on the crushed waste vegetables through a solid-liquid separator to obtain waste vegetable water and waste vegetable residues;
screening the waste water by using a screen 1 to remove particles which are harmful to a reverse osmosis membrane greatly, treating the screened liquid by using VSEP, treating the clear liquid after the VSEP treatment by using the reverse osmosis membrane 1, treating the clear liquid after the reverse osmosis membrane 1 by using a reverse osmosis membrane 2 to obtain clear water, returning the concentrated water after the reverse osmosis membrane 1 to the VSEP treatment, and returning the concentrated water after the reverse osmosis membrane 2 to the reverse osmosis membrane 1 for treatment;
uniformly mixing the waste vegetable residues obtained after solid-liquid separation and concentrated water treated by VSEP according to a predetermined proportion, and fermenting to obtain a liquid fertilizer matrix;
and screening the liquid fertilizer matrix through a corresponding aperture screen 2 according to the liquid fertilizer manufacturing standard, and mixing the screened liquid and the added corresponding nutrient solution according to the corresponding liquid fertilizer production requirement to prepare the corresponding specific liquid fertilizer.
2. The method for recycling waste vegetables according to claim 1, wherein: uniformly mixing the filter residue sieved by the screen 1, the filter residue which is not fully degraded after being sieved by the screen 2, the waste residues obtained after solid-liquid separation and the concentrated water treated by VSEP according to a preset proportion, and then fermenting to obtain the liquid fertilizer matrix.
3. The method for recycling waste vegetables according to claim 2, wherein:
the water of the tail vegetables after solid-liquid separation enters a collecting tank (tank), and the residue of the tail vegetables is used;
the liquid of the waste vegetable water in the collecting tank (tank) after being screened by the screen mesh 1 enters a liquid inlet tank (tank), and the screened filter residue enters a concentrated liquid tank (tank);
clear liquid obtained after the liquid in the liquid inlet pool (tank) is processed by VSEP enters a clear liquid pool (tank) 1, and concentrated liquid enters a concentrated liquid pool (tank);
clear liquid obtained after the liquid in the clear liquid pool (tank) 1 is treated by the reverse osmosis membrane 1 enters the clear liquid pool (tank) 2, and concentrated liquid is returned into the clear liquid pool (tank);
clear liquid in the clear liquid pool (tank) 2 after being treated by the reverse osmosis membrane 2 enters the clear water pool (tank), and concentrated liquid is returned to the clear liquid pool (tank) 1;
the liquid screened by the screen 2 enters a liquid fertilizer matrix pool (tank), and is mixed into a corresponding specific liquid fertilizer in a mixing pool (tank) according to the proportion of the corresponding liquid fertilizer production requirement and the corresponding added nutrient solution.
4. The system for the tail vegetable resource disposal method of claim 1, wherein: the method comprises the following steps:
the solid-liquid separator is used for carrying out solid-liquid separation on the crushed Chinese cabbage;
a collecting tank (tank) for collecting the waste water separated by the solid-liquid separator;
the screen 1 is used for removing particles which are harmful to the reverse osmosis membrane in the liquid in the collecting tank (tank);
a liquid inlet tank (tank) for collecting the tailed vegetable water sieved by the screen mesh 1 and the concentrated water treated by the reverse osmosis membrane 1;
VSEP for treating a liquid in a liquid intake sump (tank);
a clear liquid pool (tank) 1 for collecting clear liquid after VSEP treatment and concentrated water after reverse osmosis membrane 2 treatment;
a reverse osmosis membrane 1 for treating the liquid in the clear liquid tank (tank) 1;
a clear liquid pool (tank) 2 for collecting clear liquid treated by the reverse osmosis membrane 1;
a reverse osmosis membrane 2 for treating the liquid in the clear liquid tank (tank);
the clean water tank is used for collecting the clean liquid treated by the reverse osmosis membrane 2;
a concentrated solution tank (tank) having a stirrer for mixing the waste vegetable residue produced by the solid-liquid separator, the residue after sieving with the screen 1, the residue after sieving with the screen 2, and concentrated water after separation by VSEP;
the screen 2 is used for screening the mixture fermented in the concentrated solution tank according to the standard for preparing the liquid fertilizer;
the liquid fertilizer matrix pool (tank) is used for collecting liquid screened by the screen 2;
a mixing tank (tank) having a stirrer for mixing the liquid in the liquid fertilizer matrix tank (tank) and the nutrient solution in the nutrient solution (tank) to make a specific liquid fertilizer;
and the nutrient solution pool (tank) is used for providing nutrient solution required for preparing the specific liquid fertilizer.
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| CN202010503790.0A CN111606439A (en) | 2020-06-05 | 2020-06-05 | Tail vegetable recycling treatment method and system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112299896A (en) * | 2020-10-14 | 2021-02-02 | 江苏省农业科学院 | Application technology for returning solanaceous vegetables to field and recycling |
| CN112830820A (en) * | 2021-02-23 | 2021-05-25 | 王耀文 | System and method for producing environment-friendly enzyme and feed raw materials from large-scale tailstocks |
| CN113185342A (en) * | 2021-03-30 | 2021-07-30 | 仲恺农业工程学院 | Method and device for producing efficient organic liquid fertilizer by using waste vegetables |
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| CN112299896A (en) * | 2020-10-14 | 2021-02-02 | 江苏省农业科学院 | Application technology for returning solanaceous vegetables to field and recycling |
| CN112830820A (en) * | 2021-02-23 | 2021-05-25 | 王耀文 | System and method for producing environment-friendly enzyme and feed raw materials from large-scale tailstocks |
| CN113185342A (en) * | 2021-03-30 | 2021-07-30 | 仲恺农业工程学院 | Method and device for producing efficient organic liquid fertilizer by using waste vegetables |
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Application publication date: 20200901 |