CN212504438U - Regional organic waste and domestic sewage full-recycling comprehensive treatment system - Google Patents

Regional organic waste and domestic sewage full-recycling comprehensive treatment system Download PDF

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CN212504438U
CN212504438U CN202020452620.XU CN202020452620U CN212504438U CN 212504438 U CN212504438 U CN 212504438U CN 202020452620 U CN202020452620 U CN 202020452620U CN 212504438 U CN212504438 U CN 212504438U
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sewage
organic garbage
domestic sewage
tank
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刘晓峰
江寿良
罗贤达
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Jiangxi Yuanchun Environmental Protection Technology Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The utility model discloses a comprehensive treatment system for recycling organic garbage and domestic sewage in an area, which belongs to the field of solid waste treatment and sewage treatment, and adopts the technical scheme that the system comprises a medium constant temperature anaerobic reactor and a solid-liquid separator; the input port of the medium constant temperature anaerobic reactor is communicated with the raw material adjusting tank through a pipeline, the output port of the medium constant temperature anaerobic reactor is communicated with the biogas slurry and biogas residue collecting tank, the input port of the solid-liquid separator is communicated with the biogas slurry and biogas residue collecting tank, and the solid-liquid separator is communicated with the sewage purification device through an overflow pipe, so that clear water separated by the organic garbage treatment device is returned to the sewage purification device to be treated with domestic sewage. The problems of atmospheric pollution, continuous increase of greenhouse effect, sludge disposal and secondary pollution in the treatment process, and secondary pollution and inconvenient product use caused by separate collection and treatment of organic garbage are avoided.

Description

Regional organic waste and domestic sewage full-recycling comprehensive treatment system
Technical Field
The utility model relates to a solid waste handles and sewage treatment technical field, particularly, relates to an organic rubbish and domestic sewage resourceful integrated processing system in region.
Background
With the development of economic society, the problems of urban domestic sewage and organic garbage are increasingly highlighted. At present, most domestic sewage in cities and towns in China is gathered into a municipal domestic sewage pipe network for collection, treated by a sewage treatment plant to reach the standard and then discharged into rivers and lakes, or recycled. The organic garbage refers to kitchen garbage, excrement residues, green garbage and the like, wherein the kitchen garbage has the highest proportion and stable quantity, and is treated mainly by adopting the technologies of landfill, composting, anaerobic fermentation digestion, incineration and the like at present after being collected in a centralized manner.
For urban domestic sewage and organic garbage, the treatment mode usually adopted at the present stage in China is respectively centralized collection and end-separated treatment, and when the treatment mode is used for treating domestic sewage and organic garbage in the same region, the treatment mode needs to be separately designed, separately constructed and separately operated.
Therefore, a comprehensive treatment system for recycling organic garbage and domestic sewage in an area is provided.
Disclosure of Invention
The utility model discloses a main aim at provides an organic rubbish and domestic sewage resourceful integrated processing system in the region to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides an organic rubbish and domestic sewage resourceful integrated processing system in region, include: the device comprises a sewage purification device, wherein an input port of the sewage purification device is communicated with at least one grid pretreatment tank through a pipeline, and an output port of the sewage purification device is communicated with a middle water tank; the input port of the organic garbage treatment device is communicated with a raw material adjusting tank through a pipeline; the lower part of the organic garbage treatment device is provided with an overflow pipe which is communicated with the sewage purification device, so that clear water separated from the organic garbage treatment device is returned to the sewage purification device to be treated together with domestic sewage.
Further, the sewage purification device comprises a normal-temperature anaerobic reactor and a deep aerobic reactor; the input port of the normal-temperature anaerobic reactor is communicated with the grid pretreatment tank through a pipeline, and the output port of the normal-temperature anaerobic reactor is communicated with the regulating tank through a pipeline; the input port of the deep aerobic reactor is communicated with the regulating tank through a lift pump, and the output port is communicated with the reclaimed water tank through a pipeline, so that sewage which can reach the standard is stored in the reclaimed water tank.
Furthermore, a plurality of sets of microorganism beds are arranged in the normal-temperature anaerobic reactor and the deep aerobic reactor.
Further, the normal-temperature anaerobic reactor is connected with a gas collecting device through a gas guide pipe so as to collect methane.
Further, the organic garbage treatment device comprises a medium-constant-temperature anaerobic reactor and a solid-liquid separator; the input port of the medium constant temperature anaerobic reactor is communicated with the raw material adjusting tank through a pipeline, the output port of the medium constant temperature anaerobic reactor is communicated with the biogas slurry and biogas residue collecting tank, the input port of the solid-liquid separator is communicated with the biogas slurry and biogas residue collecting tank, and the solid-liquid separator is communicated with the sewage purification device through an overflow pipe, so that clear water separated by the organic garbage treatment device is returned to the sewage purification device to be treated with domestic sewage.
Further, the medium-temperature anaerobic reactor is connected with a gas collecting device through a gas guide pipe so as to collect methane.
Use the technical scheme of the utility model, beneficial effect is: this kind of regional interior organic rubbish and domestic sewage resourceful integrated processing system, the mode that domestic sewage treatment and organic waste treatment in the region combined together has been adopted, do not need separately to design, separately construct, separately operate, it is little to have area, the investment amount is low, the utilization ratio of resourceful is high, the running cost is low, do not increase characteristics such as town resident burden, also avoided domestic sewage to collect alone and produce atmospheric pollution in the long distance transportation process, the problem is constantly increased in greenhouse effect and the sludge treatment and the secondary pollution problem that produce in the processing procedure, and the secondary pollution and the inconvenient problem of product use that produce are collected alone to organic rubbish.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows an overall structure of the present invention;
FIG. 2 shows a block diagram of the comprehensive recycling process of organic garbage and domestic sewage according to the present invention;
FIG. 3 shows a block diagram of the domestic sewage recycling process of the present invention;
fig. 4 shows a block diagram of the organic waste recycling process of the present invention.
Wherein the figures include the following reference numerals:
10. a normal temperature anaerobic reactor; 20. a deep aerobic reactor; 30. a medium-temperature anaerobic reactor; 40. A solid-liquid separator.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 4, the utility model provides a comprehensive treatment system for recycling organic garbage and domestic sewage in region, which comprises: the sewage purification device is characterized in that an input port of the sewage purification device is communicated with at least one grating pretreatment tank through a pipeline, and an output port of the sewage purification device is communicated with a middle water tank; the input port of the organic garbage treatment device is communicated with a raw material adjusting tank through a pipeline; wherein, the lower part of the organic garbage treatment device is provided with an overflow pipe which is communicated with the sewage purification device, so that the clean water separated from the organic garbage treatment device is returned to the sewage purification device to be treated together with the domestic sewage.
Use the technical scheme of this embodiment, sewage purification device purifies domestic sewage, and organic refuse treatment device carries out fermentation treatment to domestic waste, realizes handling city and town domestic sewage and organic rubbish, through the mode that sewage purification device and organic refuse treatment device combined together, need not separately design, separately build, separately operate to reach and improve resource utilization and reduced the high effect of running cost.
Referring to the specific structure of the sewage purification apparatus, as shown in fig. 3, the sewage purification apparatus includes a normal temperature anaerobic reactor 10 and a deep aerobic reactor 20; an input port of the normal temperature anaerobic reactor 10 is communicated with the grid pretreatment tank through a pipeline, and an output port is communicated with the regulating tank through a pipeline; the input port of the deep aerobic reactor 20 is communicated with the regulating tank through a lift pump, and the output port is communicated with the reclaimed water tank through a pipeline, so that sewage which can reach the standard is stored in the reclaimed water tank.
According to the structural design, domestic sewage pretreated by the grid pond automatically flows into the normal-temperature anaerobic reactor 10, and sewage residues and most organic matters in the domestic sewage are decomposed into water, inorganic salt and micromolecular organic matters by anaerobic flora under the anaerobic condition, so that COD (chemical oxygen demand) is realizedCr、BOD5The removal rate is more than 70 percent, the removal rate of SS can be more than 80 percent, and the product is anaerobic at normal temperatureThe domestic sewage treated by the reactor 10 automatically flows into the regulating tank, the domestic sewage is automatically pumped into the deep aerobic reactor 20 by the lift pump according to the liquid level to be continuously treated, the domestic sewage pumped into the deep aerobic reactor 20 by the lift pump is further treated in the deep aerobic reactor 20, so that COD (chemical oxygen demand) is ensuredCr、BOD5The removal rate can be more than 80 percent, the removal rate of SS and ammonia nitrogen can be more than 85 percent, the sewage which can reach the standard and is treated by the advanced aerobic reactor 20 automatically flows into a reclaimed water tank, and reclaimed water in the reclaimed water tank can be used as urban miscellaneous water for further disinfection and dechlorination and then is recycled.
Specifically, multiple sets of microorganism beds are arranged in the normal temperature anaerobic reactor 10 and the deep aerobic reactor 20, and the microorganism beds can increase the density of anaerobic microorganism flora in unit volume, reduce the anaerobic reaction time and reduce the volume of the anaerobic reactor.
Further, the normal temperature anaerobic reactor 10 is connected with the gas collecting device through a gas guide tube so as to collect biogas, the biogas in the gas guide tube enters a biogas desulfurization and dehydration tank for purification, sulfur is recycled periodically, the purified biogas is sent to a biogas storage spherical tank for storage, and in order to ensure the safety of the biogas storage spherical tank, the biogas storage adopts a normal pressure double-membrane storage spherical tank, so that the utilization rate of resources in the region is effectively improved.
As for the concrete structure of the organic waste treatment apparatus, as shown in FIG. 3, the organic waste treatment apparatus comprises a medium constant temperature anaerobic reactor 30 and a solid-liquid separator 40; the input port of the medium constant temperature anaerobic reactor 30 is communicated with the raw material adjusting tank through a pipeline, the output port is communicated with the biogas slurry and residue collecting tank, the input port of the solid-liquid separator is communicated with the biogas slurry and residue collecting tank, and the solid-liquid separator 40 is communicated with the sewage purification device through an overflow pipe, so that the clean water separated by the organic garbage treatment device is returned to the sewage purification device to be treated with the domestic sewage.
The structure design is that collected organic garbage (kitchen garbage, feces, green garbage and the like) is conveyed to the recycling comprehensive treatment system, raw material pretreatment equipment is poured into the system, impurities which are not suitable for fermentation are screened out, the organic garbage is crushed by an organic garbage crusher, the organic garbage enters a raw material adjusting tank due to gravity, the concentration, the pH value, the temperature and the like of the raw material adjusting tank are adjusted, necessary preparation is made for the fermentation of the raw material, the fermentation raw material (the concentration is 10-15 percent and the temperature is more than or equal to 34 ℃) which is adjusted by the raw material adjusting tank is conveyed to a medium constant temperature reactor 30 by a centrifugal impurity pump for fermentation, a heating device, an internal circulation device and a microorganism bed are arranged in the medium constant temperature reactor 30, the temperature control range is 34-40 ℃, the fermentation control time is 15-18 days, under the action of anaerobic bacteria, organic matters in the organic garbage can generate a large amount of methane, and the environmental pollutants are reduced, the biogas residues and the biogas slurry after fermentation in the medium constant temperature reactor 30 automatically overflow (the fermented raw materials are pressed out during feeding) to a biogas residue and biogas slurry collecting tank for collection, the collected biogas residues and the biogas slurry can be used as liquid organic fertilizer according to requirements, or can be treated into solid organic fertilizer for utilization by a solid-liquid separator 40 at regular intervals, and clear water separated by the solid-liquid separator 40 is returned to the deep aerobic reactor 20 of the sewage treatment process for treatment together with domestic sewage.
Further, the medium-temperature anaerobic reactor 30 is connected with the gas collecting device through a gas guide pipe so as to collect biogas, the biogas in the gas guide pipe enters a biogas desulfurization and dehydration tank for purification, sulfur is recycled periodically, the purified biogas is sent to a biogas storage spherical tank for storage, and in order to ensure the safety of the biogas storage spherical tank, the biogas storage adopts a normal-pressure double-membrane storage spherical tank, so that the utilization rate of resources in the region is effectively improved.
The specific processing method and steps of the above embodiments of the present invention are as follows:
(1) sewage purification treatment:
s1, the domestic sewage pretreated by the grid pond automatically flows into a normal-temperature anaerobic reactor, and sewage residues and most organic matters in the domestic sewage are decomposed into water, inorganic salt and micromolecular organic matters by anaerobic flora under the anaerobic condition;
s2, automatically flowing the domestic sewage treated by the anaerobic reactor into a regulating tank, and automatically pumping the domestic sewage into the deep aerobic reactor by a lift pump according to the liquid level to continuously treat the domestic sewage;
s3, further treating the domestic sewage pumped into the deep aerobic reactor by the lift pump in the aerobic reactor;
s4, the sewage which is treated by the deep aerobic reactor and can reach the standard is automatically flowed into a reclaimed water tank, and reclaimed water in the reclaimed water tank can be used as urban miscellaneous water for further disinfection and dechlorination and then is recycled.
(2) Organic garbage treatment:
s5, conveying the collected organic garbage (kitchen garbage, excrement residue, green garbage and the like) to the recycling comprehensive treatment system, pouring the organic garbage into raw material pretreatment equipment, screening out impurities which are not suitable for fermentation, crushing the organic garbage by an organic garbage crusher, feeding the organic garbage into a raw material adjusting tank by gravity, adjusting the concentration, the pH value, the temperature and the like of the organic garbage, and preparing necessary preparation for fermentation of the raw materials;
s6, feeding the fermentation raw materials (the concentration is 10-15% and the temperature is more than or equal to 34 ℃) which are well regulated by a raw material regulating tank to a medium constant temperature reactor by a centrifugal impurity pump for fermentation, wherein the temperature control range of the medium constant temperature reactor is 34-40 ℃, and the fermentation control time is 15-18 days;
s7, automatically overflowing the biogas residues and the biogas slurry fermented by the medium constant temperature reactor (pressing out the fermented raw materials during feeding) to a biogas residue and biogas slurry collecting tank for collecting;
wherein, the solid-liquid separator separates the biogas residues and the biogas slurry, and the clear water is separated and returned to the deep aerobic reactor of the domestic sewage treatment process for treatment together with the domestic sewage.
Specifically, in step S3, a small amount of sludge generated by the deep aerobic reactor is pumped to the normal temperature anaerobic reactor or the medium temperature anaerobic reactor by a sludge pump for consumption treatment.
Example 1
In a 4000-person school, the daily output of domestic sewage is 400 tons/day (COD)Cr=350mg/l、 BOD5150mg/l, 120mg/l SS, 30mg/l ammonia nitrogen and 2.5mg/l total phosphorus, and the daily organic waste (kitchen waste, feces, green waste and the like) is about 5 tons.
Domestic sewage automatically flows into the grid pretreatment tank after being stored in the pipeline, so that larger inorganic impurities are removed, and the inorganic impurities are automatically fished out of the tank by the mechanical grid machineCarrying out outward treatment; the domestic sewage pretreated by the grid pond automatically flows into a normal-temperature anaerobic reactor, the sewage residue and most organic matters in the domestic sewage are decomposed into water, inorganic salt and micromolecular organic matters by anaerobic flora under the anaerobic condition, and the treated sewage CODCr=105mg/l、BOD545mg/l, 24mg/l of SS, 30mg/l of ammonia nitrogen and 2.5mg/l of total phosphorus; biogas generated during methanation of the normal-temperature anaerobic reactor is collected by the gas collecting equipment and then sent to the next procedure for treatment.
The domestic sewage treated by the anaerobic reactor automatically flows into the regulating tank and is pumped into the deep aerobic reactor by the lift pump, the domestic sewage is further treated under the action of aerobic microbial flora, and the treated sewage CODCr=21mg/l、BOD59mg/l, 3.6mg/l SS, 4.5mg/l ammonia nitrogen and 0.5mg/l total phosphorus, which reach the first grade A standard in pollutant discharge Standard of municipal wastewater treatment plant (GB 18918-2002); a small amount of sludge generated by the deep aerobic reactor is conveyed to a normal-temperature anaerobic reactor or a medium-temperature anaerobic reactor by a sludge pump for consumption treatment, and air of the deep aerobic reactor is provided by a Roots blower; the sewage which is treated by the deep aerobic reactor and can reach the standard is automatically flowed into a reclaimed water pool, and the reclaimed water in the reclaimed water pool is further disinfected and dechlorinated and then is reused for road flushing, landscaping, toilet flushing, landscape water and the like.
The collected organic garbage (kitchen garbage, excrement residue, green garbage and the like) is conveyed to the recycling comprehensive treatment system, poured into raw material pretreatment equipment, screened to remove impurities which are not suitable for fermentation, crushed by an organic garbage crusher, fed into a raw material adjusting tank by gravity, and then adjusted in concentration, pH value, temperature and the like; the fermentation raw materials (the concentration is about 14 percent, the temperature is more than or equal to 34 ℃) which are well regulated by the raw material regulating tank are sent to a middle constant temperature reactor by a centrifugal impurity pump for fermentation, a heating device, an internal circulation device and a microorganism bed are arranged in the middle constant temperature reactor, the temperature control range is 34-40 ℃, the fermentation control time is 15-18 days, under the action of anaerobic bacteria, organic matters in the organic garbage can generate a large amount of methane, and the methane is collected by a gas collecting device; the biogas residue and biogas slurry fermented by the medium constant temperature reactor automatically overflows (fermented raw materials are extruded during feeding) to a biogas residue and biogas slurry collecting tank for collection, the collected biogas residue and biogas slurry can be used as a liquid organic fertilizer according to requirements, a solid-liquid separator can be used for processing the biogas residue and biogas slurry into a solid organic fertilizer for landscaping, and clear water separated by the solid-liquid separator is returned to the deep aerobic reactor of the domestic sewage treatment process for processing together with domestic sewage.
Biogas collected by the domestic sewage normal-temperature anaerobic reactor gas collecting equipment and biogas collected by the constant-temperature anaerobic reactor gas collecting equipment in the organic garbage enter a biogas desulfurization and dehydration tank for purification after being gathered by a gas transmission pipe, sulfur is recycled at regular intervals, and the purified biogas is sent to a biogas storage spherical tank for storage; the marsh gas stored in the marsh gas storage spherical tank is pressurized by a marsh gas booster and then is used as cooking energy; the raw material adjusting tank and the medium-temperature constant-temperature reactor are used for fermenting the organic garbage, a stable temperature environment required by the anaerobic reactor needs to be maintained, therefore, a heating device is arranged in the raw material adjusting tank and the medium-temperature constant-temperature reactor of the organic garbage fermentation process, the heating medium is hot water, the hot water is obtained by solar heating, and external heat supply is not needed.
Example 2
The daily domestic sewage quantity of a certain ecological tourism resort is 300 tons/day (COD)Cr=400mg/l、 BOD5200mg/l, 100mg/l SS, 40mg/l ammonia nitrogen and 3.5mg/l total phosphorus, and the daily organic waste (kitchen waste, feces residue, garbage in melon and fruit picking gardens, and the like) is about 2.5 tons.
The domestic sewage automatically flows into a grid pretreatment tank after being collected by a pipeline, so that relatively large inorganic impurities are removed, and the inorganic impurities are automatically fished out of the tank by a mechanical grid machine and are transported for treatment; the domestic sewage pretreated by the grid pond automatically flows into a normal-temperature anaerobic reactor, the sewage residue and most organic matters in the domestic sewage are decomposed into water, inorganic salt and micromolecular organic matters by anaerobic flora under the anaerobic condition, and the treated sewage CODCr=120mg/l、BOD560mg/l, 20mg/l of SS, 40mg/l of ammonia nitrogen and 3.5mg/l of total phosphorus; biogas generated during methanation of the normal-temperature anaerobic reactor is collected by the gas collecting equipment and then sent to the next procedure for treatment.
At the anaerobic reactorThe treated domestic sewage automatically flows into a regulating tank and is pumped into a deep aerobic reactor by a lift pump, the deep aerobic reactor is further treated under the action of aerobic microbial flora, and the treated sewage CODCr=24mg/l、BOD512mg/l, 3mg/l SS, 6mg/l ammonia nitrogen and 0.7mg/l total phosphorus, which reach the first grade A standard in pollutant discharge Standard of municipal wastewater treatment plant (GB 18918-2002); a small amount of sludge generated by the deep aerobic reactor is conveyed to a normal-temperature anaerobic reactor or a medium-temperature anaerobic reactor by a sludge pump for consumption treatment, and air of the deep aerobic reactor is provided by a Roots blower; the sewage which is treated by the deep aerobic reactor and can reach the standard is automatically flowed into a reclaimed water pool, the reclaimed water in the reclaimed water pool can be directly discharged to nearby ditches after further disinfection and dechlorination, and the reclaimed water can also be reused for flushing toilets in tourist resort, flushing greenery lands and sites, irrigating melon and fruit picking gardens and the like.
The collected organic garbage (kitchen garbage, excrement residue, melon and fruit picking garden garbage and the like) is conveyed to the recycling comprehensive treatment system, poured into raw material pretreatment equipment, screened to remove impurities which are not suitable for fermentation, crushed by an organic garbage crusher, fed into a raw material adjusting tank by gravity, and adjusted in concentration, pH value, temperature and the like; the fermentation raw materials (the concentration is about 12 percent, the temperature is more than or equal to 34 ℃) which are well regulated by the raw material regulating tank are sent to a middle constant temperature reactor by a centrifugal impurity pump for fermentation, a heating device, an internal circulation device and a microorganism bed are arranged in the middle constant temperature reactor, the temperature control range is 34-40 ℃, the fermentation control time is 15-18 days, under the action of anaerobic bacteria, organic matters in the organic garbage can generate a large amount of methane, and the methane is collected by a gas collecting device; the biogas residue and biogas slurry fermented by the medium constant temperature reactor automatically overflows (fermented raw materials are extruded during feeding) to a biogas residue and biogas slurry collecting pool for collection, the collected biogas residue and biogas slurry is periodically processed into solid organic fertilizer by a solid-liquid separator for landscaping of tourist resort and planting of organic melons, fruits and vegetables in a melon and fruit picking garden, and clear water separated by the solid-liquid separator is returned to the deep aerobic reactor of the domestic sewage treatment process for treatment together with domestic sewage.
Biogas collected by the domestic sewage normal-temperature anaerobic reactor gas collecting equipment and biogas collected by the constant-temperature anaerobic reactor gas collecting equipment in the organic garbage enter a biogas desulfurization and dehydration tank for purification after being gathered by a gas transmission pipe, sulfur is recycled at regular intervals, and the purified biogas is sent to a biogas storage spherical tank for storage; the biogas stored in the biogas storage spherical tank is pressurized by a biogas supercharger and then is used as cooking energy and used for generating electricity by a biogas generator set; the raw material adjusting tank and the medium-temperature constant-temperature reactor are used for fermenting the organic garbage, a stable temperature environment required by the anaerobic reactor needs to be maintained, therefore, a heating device is arranged in the raw material adjusting tank and the medium-temperature constant-temperature reactor of the organic garbage fermentation process, the heating medium is hot water, the hot water is sourced from hot water for cooling and heat exchange of the generator set or hot water heated by solar energy, and external heat supply is not needed.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
1. the treatment technology selected for the domestic sewage of the utility model is normal temperature anaerobic treatment, deep aerobic treatment and disinfection technology, compared with the existing MBR integrated technology, the device has the characteristics of more investment saving, low energy consumption of per ton sewage treatment, no need of changing core equipment in long-term operation, extremely small sludge production amount and the like;
2. the normal temperature anaerobic reactor and the deep aerobic reactor selected for domestic sewage treatment of the utility model adopt a plurality of sets of microorganism beds, compared with the prior art, the density of microorganism flora in unit volume is larger, the treatment effect is better, the volume of the reactor can be reduced, and the investment is saved;
3. the utility model discloses well constant temperature anaerobic reactor that organic waste treatment chose for use, including heating device, internal circulation device and microbial bed, can improve the import concentration of fermentation raw materials (10% ~ 15%), shorten fermentation time to in 18 days, for traditional anaerobic fermentation reactor fermentation raw materials import concentration within 10%, fermentation time is more than 25 days, can realize the effect of sparingly investing;
4. the utility model combines domestic sewage treatment and organic garbage treatment in the area, which can not only recycle the sludge generated by the domestic sewage treatment, but also carry out innocent treatment on the clear liquid and the biogas slurry generated by the solid-liquid separator in the organic garbage treatment, thereby ensuring that the treatment system can recycle the domestic sewage and the organic garbage to the maximum extent and no secondary pollution is generated;
5. the utility model discloses in the domestic sewage and organic rubbish in the innocent treatment district, the normal water of production can be used to the road after the disinfection and wash, afforestation, towards lavatory, view water etc. marsh gas can be used to the cooking energy and generate electricity, and the fertilizer can be used to afforestation or organic vegetable planting in the district, does not have the problem that fertilizer heavy metal content exceeds standard, has ensured that the resource can be at regional inner loop utilization.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A comprehensive treatment system for organic garbage and domestic sewage full recycling in an area is characterized by comprising:
the device comprises a sewage purification device, wherein an input port of the sewage purification device is communicated with at least one grid pretreatment tank through a pipeline, and an output port of the sewage purification device is communicated with a middle water tank;
the input port of the organic garbage treatment device is communicated with a raw material adjusting tank through a pipeline;
the lower part of the organic garbage treatment device is provided with an overflow pipe which is communicated with the sewage purification device, so that clear water separated from the organic garbage treatment device is returned to the sewage purification device to be treated together with domestic sewage.
2. The system for comprehensively treating organic garbage and domestic sewage in a region according to claim 1, wherein: the sewage purification device comprises a normal-temperature anaerobic reactor and a deep aerobic reactor;
the input port of the normal-temperature anaerobic reactor is communicated with the grid pretreatment tank through a pipeline, and the output port of the normal-temperature anaerobic reactor is communicated with the regulating tank through a pipeline;
the input port of the deep aerobic reactor is communicated with the regulating tank through a lift pump, and the output port is communicated with the reclaimed water tank through a pipeline, so that sewage which can reach the standard is stored in the reclaimed water tank.
3. The system for comprehensively treating organic garbage and domestic sewage in a region according to claim 2, wherein: and a plurality of sets of microorganism beds are arranged in the normal-temperature anaerobic reactor and the deep aerobic reactor.
4. The system for comprehensively treating organic garbage and domestic sewage in a region according to claim 2, wherein: the normal temperature anaerobic reactor is connected with the gas collecting device through a gas guide pipe so as to collect methane.
5. The system for comprehensively treating organic garbage and domestic sewage in a region according to claim 1, wherein: the organic garbage treatment device comprises a medium constant temperature anaerobic reactor and a solid-liquid separator;
the input port of the medium constant temperature anaerobic reactor is communicated with the raw material adjusting tank through a pipeline, the output port is communicated with a biogas slurry and residue collecting tank,
and the input port of the solid-liquid separator is communicated with the biogas slurry and residue collecting tank, and the solid-liquid separator is communicated with the sewage purification device through an overflow pipe, so that clear water separated by the organic garbage treatment device is returned to the sewage purification device to be treated together with domestic sewage.
6. The system for comprehensively treating organic garbage and domestic sewage in a region according to claim 5, wherein: the medium constant temperature anaerobic reactor is connected with a gas collecting device through a gas guide pipe so as to collect methane.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111439888A (en) * 2020-04-01 2020-07-24 江西源春环保科技有限公司 System and method for comprehensively treating organic garbage and domestic sewage in region in full-recycling manner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111439888A (en) * 2020-04-01 2020-07-24 江西源春环保科技有限公司 System and method for comprehensively treating organic garbage and domestic sewage in region in full-recycling manner

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