CN111747610A - Zero-energy-consumption recycling treatment process for pig raising excrement - Google Patents
Zero-energy-consumption recycling treatment process for pig raising excrement Download PDFInfo
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- CN111747610A CN111747610A CN202010567082.3A CN202010567082A CN111747610A CN 111747610 A CN111747610 A CN 111747610A CN 202010567082 A CN202010567082 A CN 202010567082A CN 111747610 A CN111747610 A CN 111747610A
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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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
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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
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/009—Apparatus with independent power supply, e.g. solar cells, windpower, fuel cells
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/10—Temperature conditions for biological treatment
- C02F2301/106—Thermophilic treatment
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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Abstract
The invention provides a zero-energy-consumption resource treatment process for pig raising excrement, which comprises the following steps of: the method has the advantages that the method is simple and easy to implement and low in investment cost by passing through a screen pool, a pig manure solar high-temperature fermentation pool, a homogenizing pool, a solar electrocatalytic oxidation pool, a stepped digestion pool and a slag cattail pool, and conventional energy sources are not consumed in the reaction process, solar energy is utilized, and stepped self-flow arrangement is adopted in elevation arrangement; the invention can carry out harmless treatment on the pig raising sewage and the toxic substances and germs in the pig manure, thoroughly solves the problems of fry death and water eutrophication caused by direct discharge of the pig raising sewage and the pig manure into a fishpond, and crop death caused by high load of the pig raising sewage and the pig manure directly discharged into forests, orchards or farmlands, and can greatly promote the coordinated sustainable development of the animal husbandry and fishery and agriculture.
Description
Technical Field
The invention belongs to the technical field of wastewater treatment, and particularly relates to a zero-energy-consumption recycling treatment process for pig raising excrement.
Background
In the last five years, poverty-relieving development of China is increased, pig farmers are increased, pig breeding industry is rapidly developed, most of Guangxi areas are small and medium-sized pig farms, 200 pigs which are grown in the market in years are different, the areas are backward developed, most of the farms are not provided with a wastewater treatment system, and breeding wastewater is directly discharged into a water body, so that the 'Xiaodongjiang' of the West Guangdong mother river is poor in five types of water quality, and the use function is basically lost. The wastewater source comprises pig excreta and piggery washing water, the pig raising wastewater has high organic matter content, and also contains antibiotics, pathogenic microorganisms and the like, and the breeding wastewater is directly discharged into fishponds, rivers and lakes without treatment and finally flows to the small east river through surface runoff. Causing eutrophication, resulting in reduced production in fishery; meanwhile, the direct discharge of pig-raising wastewater easily causes the pollution of shallow groundwater, seriously affects the quality of groundwater and the quality of drinking water for people in the area, threatens the life safety of the masses, and currently, one of the most direct and effective modes for restraining the aggravation of water body pollution is to ensure the discharge after reducing indexes such as ammonia nitrogen in sewage.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a zero-energy-consumption resource treatment process for pig-raising excrement, which effectively solves the problem of pollution caused by pig excrement wastewater. The technical purpose of the invention is realized by the following technical scheme: a zero-energy-consumption resource treatment process for pig raising excrement comprises the following treatment steps:
(1) and (3) screen pool treatment: enabling the pig raising wastewater to flow through a screen pool, filtering solid suspended matters in the wastewater, enabling the filtered wastewater to flow into a homogenizing pool, and discharging filter residues into a fermentation pool;
(2) treating the pig manure in a high-temperature fermentation tank: mixing pig manure with the filter residue obtained in the step (1), adding sawdust, rice bran and straw crushed materials to be uniformly mixed after the pig manure is mixed and reused in a fishpond, fermenting for 3 days at high temperature, and then putting the mixture into the fishpond, wherein the pig manure is applied after being mixed and directly fermented for reuse in farmlands, orchards and woodlands; converting solar energy into heat energy by using a solar device to supply heat for fermentation;
(3) and (3) homogenizing tank treatment: the water quality, the water quantity and the water temperature of the sewage in the step (1) are adjusted in a balanced manner, and the sewage flows into an anaerobic fermentation tank after being adjusted;
(4) treating in an anaerobic urine fermentation tank: allowing the sewage subjected to the step (3) to enter a high-temperature fermentation tank, staying for 24 hours, and allowing the sewage to enter the next stage of treatment after fermentation;
(5) treating in an electrocatalytic oxidation pond: carrying out catalytic oxidation on the sewage in the step (4) by utilizing electric energy converted from solar energy, decomposing organic matters into micromolecular organic matters and inorganic matters, and generating active chlorine oxide;
(6) treating by a stepped digestion tank: after the sewage in the step (5) passes through the stepped digestion tank, a large amount of chlorine oxide overflows and decomposes, and the sewage stays for 2 hours;
(7) treating the furnace slag in a pythagorean pond: enabling the sewage subjected to the step (6) to flow into a furnace slag cattail pool, further neutralizing oxides, removing part of organic pollutants and nitrogen pollutants in the sewage, and staying for 1 h;
(8) resource utilization: and (4) discharging the sewage subjected to the step (7) into a fishpond, a farmland, an orchard and a forest land to be used as nutrients.
Preferably, the screen pool in the step (1) adopts a hydraulic screen.
Preferably, the pig manure fermentation in the step (2) adopts anaerobic fermentation, and the fermentation temperature is 50-60 ℃.
Preferably, the solar device in the step (2) adopts a vacuum tube for heat collection, a plurality of 1-inch stainless steel water tubes are arranged at the bottom of the pig manure high-temperature fermentation tank, the fermentation temperature is 55 ℃, and the three tanks are connected in parallel.
Preferably, the temperature of the urine anaerobic fermentation tank is 50-57 ℃, and the urine anaerobic fermentation tank stays for 24 hours.
Preferably, in the step (5), a solar panel is adopted for converting solar energy into electric energy, a storage battery is carried under the panel, a graphite electrode bar is adopted as an electrode, and the retention time is 2 hours.
In conclusion, the invention has the following beneficial effects: conventional energy is not consumed in the reaction process, solar energy is converted into heat energy and electric energy, the operation of the fermentation tank and the catalytic oxidation tank is maintained, the step-type gravity flow arrangement is adopted in the elevation arrangement, the method is simple and easy to implement, and the investment cost is low; the invention can carry out harmless treatment on the pig-raising sewage and the toxic substances and pathogenic bacteria in the pig manure, reduce the organic load of a fishpond, an orchard, a forest land and a farmland, thoroughly solve the problems of fry death and water eutrophication caused by directly discharging the pig-raising sewage and the pig manure into the fishpond, and crop death caused by directly discharging the pig-raising sewage and the pig manure into the forest land, the orchard or the farmland with high load, and can greatly promote the coordinated sustainable development of the livestock breeding industry, the fishery and the agriculture.
Drawings
FIG. 1 is a schematic flow chart of an embodiment.
Detailed Description
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
A zero-energy-consumption resource treatment process for pig raising excrement comprises the following treatment steps:
(1) and (3) screen pool treatment: enabling the pig raising wastewater to flow through a screen pool, filtering solid suspended matters in the wastewater, enabling the filtered wastewater to flow into a homogenizing pool, and discharging filter residues into a fermentation pool; the screen pool in the step (1) adopts a hydraulic screen.
(2) Treating the pig manure in a high-temperature fermentation tank: mixing pig manure with the filter residue obtained in the step (1), adding sawdust, rice bran and straw crushed materials to be uniformly mixed after the pig manure is mixed and reused in a fishpond, fermenting for 3 days at high temperature, and then putting the mixture into the fishpond, wherein the pig manure is applied after being mixed and directly fermented for reuse in farmlands, orchards and woodlands; in the step (2), the pig manure is fermented by anaerobic fermentation at the fermentation temperature of 50-60 ℃; the solar energy is converted into heat energy by a solar device to supply heat for fermentation, the solar device collects heat by a vacuum tube, a plurality of 1-inch stainless steel water tubes are arranged at the bottom of the high-temperature pig manure fermentation tank, the fermentation temperature is 55 ℃, and the three tanks are connected in parallel.
(3) And (3) homogenizing tank treatment: the water quality, the water quantity and the water temperature of the sewage in the step (1) are adjusted in a balanced manner, and the sewage flows into an anaerobic fermentation tank after being adjusted;
(4) treating in an anaerobic urine fermentation tank: the sewage after the step (3) enters a high-temperature fermentation tank, the temperature of the urine anaerobic fermentation tank is 50-57 ℃, the sewage stays for 24 hours, and the sewage enters the next-stage treatment after fermentation;
(5) treating in an electrocatalytic oxidation pond: carrying out catalytic oxidation on the sewage in the step (4) by utilizing electric energy converted from solar energy, decomposing organic matters into micromolecular organic matters and inorganic matters, and generating active chlorine oxide; in the step (5), a solar panel is adopted for converting solar energy into electric energy, a storage battery is carried under the panel, the voltage converter is in a (30V → 3V) specification, the electrolytic voltage is 3V, a graphite electrode rod is adopted as an electrode, and the retention time is 2 h.
(6) Treating by a stepped digestion tank: after the sewage in the step (5) passes through the stepped digestion tank, a large amount of chlorine oxide overflows and decomposes, and the sewage stays for 2 hours;
(7) treating the furnace slag in a pythagorean pond: enabling the sewage subjected to the step (6) to flow into a furnace slag cattail pool, further neutralizing oxides, removing part of organic pollutants and nitrogen pollutants in the sewage, and staying for 1 h;
(8) resource utilization: discharging the sewage obtained in the step (7) into a fishpond, a farmland, an orchard and a forest land to be used as nutrients; (the types and the proportions of the fries raised in the fishpond are 70 percent of spotted silver carp, 20 percent of grass carp and 10 percent of crucian carp and carp).
The sewage treated by the step (7) reaches the standard of 'water pollutant maximum allowable daily average discharge concentration of intensive livestock and poultry breeding':
Claims (6)
1. a zero-energy-consumption resource treatment process for pig raising excrement is characterized by comprising the following treatment steps:
(1) and (3) screen pool treatment: enabling the pig raising wastewater to flow through a screen pool, filtering solid suspended matters in the wastewater, enabling the filtered wastewater to flow into a homogenizing pool, and discharging filter residues into a fermentation pool;
(2) treating the pig manure in a high-temperature fermentation tank: mixing pig manure with the filter residue obtained in the step (1), adding sawdust, rice bran and straw crushed materials to be uniformly mixed after the pig manure is mixed and reused in a fishpond, fermenting for 3 days at high temperature, and then putting the mixture into the fishpond, wherein the pig manure is applied after being mixed and directly fermented for reuse in farmlands, orchards and woodlands; converting solar energy into heat energy by using a solar device to supply heat for fermentation;
(3) and (3) homogenizing tank treatment: the water quality, the water quantity and the water temperature of the sewage in the step (1) are adjusted in a balanced manner, and the sewage flows into an anaerobic fermentation tank after being adjusted;
(4) treating in an anaerobic urine fermentation tank: allowing the sewage subjected to the step (3) to enter a high-temperature fermentation tank, staying for 24 hours, and allowing the sewage to enter the next stage of treatment after fermentation;
(5) treating in an electrocatalytic oxidation pond: carrying out catalytic oxidation on the sewage in the step (4) by utilizing electric energy converted from solar energy, decomposing organic matters into micromolecular organic matters and inorganic matters, and generating active chlorine oxide;
(6) treating by a stepped digestion tank: after the sewage in the step (5) passes through the stepped digestion tank, a large amount of chlorine oxide overflows and decomposes, and the sewage stays for 2 hours;
(7) treating the furnace slag in a pythagorean pond: enabling the sewage subjected to the step (6) to flow into a furnace slag cattail pool, further neutralizing oxides, removing part of organic pollutants and nitrogen pollutants in the sewage, and staying for 1 h;
(8) resource utilization: and (4) discharging the sewage subjected to the step (7) into a fishpond, a farmland, an orchard and a forest land to be used as nutrients.
2. The zero-energy-consumption resource treatment process for the pig-raising excrement according to claim 1, characterized in that the sieve pool in the step (1) adopts a hydraulic sieve.
3. The zero-energy-consumption resource treatment process for pig manure according to claim 1, characterized in that the pig manure fermentation in the step (2) adopts anaerobic fermentation at a fermentation temperature of 50-60 ℃.
4. The zero-energy-consumption resource treatment process for the pig manure in the step (2) is characterized in that the solar device collects heat by a vacuum tube, a plurality of 1-inch stainless steel water tubes are arranged at the bottom of the pig manure high-temperature fermentation tank, the fermentation temperature is 55 ℃, and the three tanks are connected in parallel.
5. The zero-energy-consumption resource treatment process for the pig-raising manure according to claim 1, characterized in that the temperature of the urine anaerobic fermentation tank is 50-57 ℃, and the urine anaerobic fermentation tank stays for 24 hours.
6. The zero-energy-consumption resource treatment process for the pig-raising excrement according to claim 1, characterized in that in the step (5), a solar cell panel is adopted for converting solar energy into electric energy, a storage battery is carried under the panel, a graphite electrode bar is adopted as an electrode, and the retention time is 2 hours.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010567082.3A CN111747610A (en) | 2020-06-19 | 2020-06-19 | Zero-energy-consumption recycling treatment process for pig raising excrement |
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| CN202010567082.3A CN111747610A (en) | 2020-06-19 | 2020-06-19 | Zero-energy-consumption recycling treatment process for pig raising excrement |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040045885A1 (en) * | 2002-09-10 | 2004-03-11 | Sanyo Electric Co., Ltd. | Waste treatment system for treatment of organic waste and digested liquid thereof |
| CN103274571A (en) * | 2013-06-27 | 2013-09-04 | 波鹰(厦门)科技有限公司 | Resource utilization and treatment method of livestock breeding wastewater |
| CN103951145A (en) * | 2014-01-27 | 2014-07-30 | 青岛市畜牧兽医研究所 | Method for harmless treatment and recycling of livestock and poultry breeding manure waste |
| CN107601755A (en) * | 2016-07-12 | 2018-01-19 | 福建方明环保科技股份有限公司 | A kind of sewage of farm ecological treatment method |
| CN207175725U (en) * | 2017-09-07 | 2018-04-03 | 广州市天瑞环保科技有限公司 | A kind of urban waterway sewage disposal system |
-
2020
- 2020-06-19 CN CN202010567082.3A patent/CN111747610A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040045885A1 (en) * | 2002-09-10 | 2004-03-11 | Sanyo Electric Co., Ltd. | Waste treatment system for treatment of organic waste and digested liquid thereof |
| CN103274571A (en) * | 2013-06-27 | 2013-09-04 | 波鹰(厦门)科技有限公司 | Resource utilization and treatment method of livestock breeding wastewater |
| CN103951145A (en) * | 2014-01-27 | 2014-07-30 | 青岛市畜牧兽医研究所 | Method for harmless treatment and recycling of livestock and poultry breeding manure waste |
| CN107601755A (en) * | 2016-07-12 | 2018-01-19 | 福建方明环保科技股份有限公司 | A kind of sewage of farm ecological treatment method |
| CN207175725U (en) * | 2017-09-07 | 2018-04-03 | 广州市天瑞环保科技有限公司 | A kind of urban waterway sewage disposal system |
Non-Patent Citations (1)
| Title |
|---|
| 姜忠喆: "《活力之源：地球能源大盘点》", 31 January 2014, 成都时代出版社 * |
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