CN105296337A - Community organic matter in-place digestion degradation biogas preparation electrical power generating system, and applications thereof - Google Patents
Community organic matter in-place digestion degradation biogas preparation electrical power generating system, and applications thereof Download PDFInfo
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- CN105296337A CN105296337A CN201510780304.9A CN201510780304A CN105296337A CN 105296337 A CN105296337 A CN 105296337A CN 201510780304 A CN201510780304 A CN 201510780304A CN 105296337 A CN105296337 A CN 105296337A
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/36—Means for collection or storage of gas; Gas holders
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/58—Reaction vessels connected in series or in parallel
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M43/00—Combinations of bioreactors or fermenters with other apparatus
- C12M43/08—Bioreactors or fermenters combined with devices or plants for production of electricity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
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Abstract
The invention provides a community organic matter in-place digestion degradation biogas preparation electrical power generating system. According to the community organic matter in-place digestion degradation biogas preparation electrical power generating system, kitchen waste of each household in a community is smashed into small particle organic waste, and is mixed with toilet wastewater of each household and community green garbage, and high concentration waste water is obtained via concentration; the high concentration waste water is subjected to anaerobic digestion so as to obtain biogas and a digestion liquid; biogas is subjected to desulfuration purifying so as to obtain pure biogas, the biogas is used for generating electric energy via combustion in an internal combustion engine, and electric energy is recycled back to users in the community; the digestion liquid is treated so as to obtain a fertilizer and terminal waste water; and terminal waste water is subjected to simple treatment in septic tanks, and then is discharged into municipal sewage pipe networks. The community organic matter in-place digestion degradation biogas preparation electrical power generating system is capable of realizing pretreatment of waste sources, and in-place anaerobic digestion, so that technological process is short, treatment cost is low; kitchen waste is not stacked or transported, environment pollution is not caused, and transportation cost is reduced; and at the same time, electric energy generated by the community organic matter in-place digestion degradation biogas preparation electrical power generating system can be used, new energy policy subsidies from the government can be obtained, and economic efficiency maximization is realized.
Description
Technical field
The invention belongs to energy environment protection technical field, be specifically related to a kind of community organism and digest degraded producing methane power generation system and application thereof on the spot.
Background technology
At present, community in urban areas organic waste processing mode is that changing food waste is integrated with municipal wastes and entered the modes such as destructor plant carries out burning, landfill and process, and toilet-flushing sewage enters Urban Underground grid and is pooled to sewage work and processes.The chemical energy of organic waste itself wastes by this processing mode on the one hand, increases the load of destructor plant and sewage work on the other hand, and adds the cost of organic waste in transport process.
Chinese patent CN102167468B discloses " a kind of municipal sludge, ight soil and kitchen garbage combined treatment process ", and CN102286541A discloses " a kind of method that changing food waste, municipal sludge and urban night soil anaerobic fermentation prepare biogas ", these two publications are all adopt the mode of municipal sludge, ight soil, changing food waste being carried out combination treatment; Chinese patent CN102531295B discloses " methods of one kind of multiple rubbish combination treatment ", and the gourd, fruit and vegetable rubbish that solid life refuse, changing food waste, the market of farm produce are collected is carried out combination treatment.But above-mentioned patent all needs to stack process by all kinds of refuse refuse collecting, and the problem such as stacking space, transit link that it relates to all to environment, and may add the processing cost of organic waste; In addition, the organic waste fractions such as municipal sludge, solid life refuse is complicated, fractions even can not carry out anaerobically fermenting, have considerable influence to the effect of anaerobic digestion when processing together with changing food waste, rubbish of flushing the toilet etc., and the pretreatment process of municipal sludge, solid life refuse etc. also can increase processing cost further.
And from the angle of distributed energy, organism is digested on the spot degraded and generating is most scientific one of refuse process and energy producing method, which greatly reduce pollution and waste that refuse and the energy causes in transportation.
Therefore, the recoverying and utilizing method and the recycling system that design a kind of community in urban areas organic waste is necessary, to overcome the problems referred to above.
Summary of the invention
The object of the invention is the defect overcoming prior art, provide a kind of community organism and digest degraded producing methane power generation system on the spot, treatment in situ is carried out, high-efficiency environment friendly to community's changing food waste and rubbish of flushing the toilet, effectively reduces processing cost.
Technical scheme of the present invention is to provide a kind of community organism and digests degraded producing methane power generation system on the spot, comprises the Buffer Pool, mixing pit, concentration basin and the anaerobic digester that connect successively; The opening for feed of described Buffer Pool connects community kitchen drainage house steward, this community kitchen drainage house steward connects each drain of kitchen in community respectively, in described community, each drain of kitchen is respectively arranged with refuse breaking device, the discharge port of described mixing pit opening for feed Connection Pool and community flush the toilet waste water main drain, this community waste water main drain of flushing the toilet connects each toilet in community, described anaerobic digester top is provided with gas exhaust duct, this gas exhaust duct connects thionizer opening for feed, and described thionizer discharge port connects gas internal-combustion engine.
Further, above-mentioned mixing pit opening for feed is also connected with green garbage pond.
Further, the gas exhaust duct between above-mentioned thionizer and anaerobic digester is provided with tank for sewage gas one; Tank for sewage gas two is provided with between thionizer and gas internal-combustion engine.
Further, above-mentioned anaerobic digester bottom is provided with liquid discharge pipe, and liquid discharge pipe connects settling tank.
Further, centrifuge is provided with between above-mentioned settling tank and anaerobic digester.
Further, be provided with shore pipe bottom above-mentioned anaerobic digester, shore pipe is connected with recycle pump, and this circulating-pump outlet end is connected with anaerobic digester inlet end.
In addition, present invention also offers the application that above-mentioned community organism digests degraded producing methane power generation system on the spot, comprise the steps:
1) the kitchen waste refuse breaking device of family each in community is broken into the small-particle organic waste that granularity is 2 ~ 3mm, small-particle organic waste enter Buffer Pool and are hydrolyzed, and hydrolysis time is 7 ~ 10 days, obtains hydrolyzed waste water.
2) waste water of flushing the toilet of each toilet in community is collected, by step 1 by community's waste water main drain of flushing the toilet) waste water of flushing the toilet of the hydrolyzed waste water that obtains and collection enters in mixing pit and mixes, and mixing time is 6 ~ 12 hours, obtains combined sewage.
3) by step 2) combined sewage that obtains is incorporated in concentration basin and concentrates, and obtains the high-concentration sewage that organic concentration is 20%.
4) step 3) high-concentration sewage that obtains carries out anaerobic digestion in anaerobic digester, and anaerobic digestion time is 14 ~ 21 days, and temperature is 30 ~ 35 DEG C, obtains biogas and Digestive system.
5) step 4) biogas that obtains enters thionizer and carries out desulfurizing and purifying, obtains pure biogas.
6) step 5) the pure biogas that obtains by gas internal-combustion engine combustion power generation, obtain electric energy.
7) step 4) Digestive system that obtains obtains natural pond liquid after centrifuge centrifuge dehydration and natural pond slag enters settling tank, in the liquid of natural pond, add magnesium oxide and iron trichloride obtain organism precipitation, organism precipitation carried out being mixed to form fertilizer with natural pond slag, the sewage obtained after the liquid precipitate of natural pond enters septic tank.
Further, above-mentioned steps 2) in irregularly in mixing pit, supplement green garbage from green garbage pond.
Further, above-mentioned steps 4) in anaerobic digester adopt the two-stage anaerobic digestion pool structure be arranged in series.
Further, above-mentioned steps 3) in concentration basin be that multiple stage thickening equipment is in parallel.
Beneficial effect of the present invention:
(1) this community provided by the invention organism digests degraded producing methane power generation system on the spot does not need the steps such as refuse transport, stacking, namely carries out pre-treatment in refuse source of generation, and Anaerobic Digestion on the spot, and flow process is short, and processing cost is low; And handling object only comprises the changing food waste and rubbish of flushing the toilet that produce in community, composition is comparatively single, and anaerobic digestion effect is better.
(2) this community provided by the invention organism digests the pure biogas combustion generating that degraded producing methane power generation system will obtain on the spot, feeds back to community user, realize the recycle of resource, ecological, environmental protective by grid-connected for electric energy; Meanwhile, because government has electricity price to subsidize in new forms of energy, its economic benefit can be reached maximization by this system.
(3) this community provided by the invention organism digest on the spot degraded producing methane power generation system by by anaerobically digested sludge in the process of anaerobic digester internal recycle, effectively can improve the organic concentration in anaerobic digester, improve anaerobic digestion effect.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Tu1Shi community of the present invention organism digests the structural representation of degraded producing methane power generation system on the spot.
Description of reference numerals: 1, refuse breaking device; 2, Buffer Pool; 3, mixing pit; 4, concentration basin; 5, anaerobic digester; 6, toilet; 7, green garbage pond; 8, tank for sewage gas one; 9, thionizer; 10, tank for sewage gas two; 11, gas internal-combustion engine; 12, electrical network; 13, settling tank; 14, septic tank; 15, sewage network; 16, fertilizer transport trolley.
Embodiment
Embodiment 1:
Present embodiments provide a kind of community's organism as shown in Figure 1 and digest degraded producing methane power generation system on the spot, comprise the Buffer Pool 2, mixing pit 3, concentration basin 4 and the anaerobic digester 5 that connect successively; The opening for feed of described Buffer Pool 2 connects community kitchen drainage house steward, this community kitchen drainage house steward connects each drain of kitchen in community respectively, in described community, each drain of kitchen is respectively arranged with refuse breaking device 1, the discharge port of described mixing pit 3 opening for feed Connection Pool 2 and community flush the toilet waste water main drain, this community waste water main drain of flushing the toilet connects each toilet 6 in community, described anaerobic digester 5 top is provided with gas exhaust duct, this gas exhaust duct connects thionizer 9 opening for feed, and described thionizer 9 discharge port connects gas internal-combustion engine 11.
As one preferred embodiment, described mixing pit 3 opening for feed is also connected with green garbage pond 7.Green garbage in community such as leaf, wood etc. also need not be stacked, and directly clean and be collected into green garbage pond 7, for supplementing the deficiency of carbonaceous in the combined sewage in mixing pit 3, kill two birds with one stone.
Gas exhaust duct between described thionizer 9 and anaerobic digester 5 is provided with tank for sewage gas 1; Tank for sewage gas 2 10 is provided with between thionizer 9 and gas internal-combustion engine 11; The setting of tank for sewage gas 1 and tank for sewage gas 2 10 is used for the biogas of the unnecessary amount of buffer memory.
As one preferred embodiment, described anaerobic digester 5 bottom is provided with liquid discharge pipe, and liquid discharge pipe connects settling tank 13, is provided with centrifuge between settling tank 13 and anaerobic digester 5; Centrifuge and settling tank 13 process for the Digestive system produced anaerobic digester 5.
And in order to improve organic concentration in anaerobic digester 5, bottom described anaerobic digester 5, being provided with shore pipe, shore pipe is connected with recycle pump, and this circulating-pump outlet end is connected with anaerobic digester 5 inlet end; The mud produced in anaerobic digester 5, at anaerobic digester 5 internal recycle, improves anaerobic digestion effect.
This community's organism digests the application of degraded producing methane power generation system on the spot, specifically comprises the steps:
1) the kitchen waste refuse breaking device 1 of family each in community is broken into the small-particle organic waste that granularity is 2 ~ 3mm, shorten hydrolysis time, improve hydrolysis effect, small-particle organic waste enter Buffer Pool 2 and are hydrolyzed, hydrolysis time is 7 ~ 10 days, obtains hydrolyzed waste water.
2) waste water of flushing the toilet of each toilet 6 in community is collected by community's waste water main drain of flushing the toilet, by step 1) waste water of flushing the toilet of the hydrolyzed waste water that obtains and collection enters in mixing pit 3 and mixes, mixing time is 6 ~ 12 hours, obtains combined sewage; Meanwhile, also irregularly can supplement green garbage from green garbage pond 7 in mixing pit 3, supplement the deficiency of carbonaceous in combined sewage.
3) by step 2) combined sewage that obtains is incorporated in concentration basin 4 and concentrates, and obtains the high-concentration sewage that organic concentration is 20%.
4) step 3) high-concentration sewage that obtains carries out anaerobic digestion in anaerobic digester 5, and anaerobic digestion time is 14 ~ 21 days, and temperature is 30 ~ 35 DEG C, obtains biogas and Digestive system.
5) step 4) biogas that obtains enters thionizer 9 and carries out desulfurizing and purifying, obtains pure biogas; Biogas can enter thionizer 9 again by advanced row cache in tank for sewage gas 1, effectively can control the treatment capacity of biogas in thionizer 9.
6) step 5) the pure biogas that obtains is by gas internal-combustion engine 11 combustion power generation, and obtain electric energy, this electric energy can be incorporated in government's electrical network 12 and feed back to community user; Pure biogas can enter gas internal-combustion engine 11 again by advanced row cache in tank for sewage gas 2 10 simultaneously, controls biogas combustion amount in gas internal-combustion engine 11.
7) step 4) Digestive system that obtains obtains natural pond liquid after centrifuge centrifuge dehydration and natural pond slag enters settling tank 13, in the liquid of natural pond, add magnesium oxide and iron trichloride obtain organism precipitation, organism precipitation is carried out being mixed to form fertilizer with natural pond slag, fertilizer transports through fertilizer transport trolley 16 and carries out selling or community afforestation, the sewage obtained after the liquid precipitate of natural pond enters septic tank 14, after Anaerobic Digestion after a while, permitted discharge enters municipal sewage network 15.
This community provided by the invention organism digests degraded producing methane power generation system on the spot does not need the steps such as refuse transport, stacking, namely carries out pre-treatment in refuse source of generation, and Anaerobic Digestion on the spot, and flow process is short, and processing cost is low; And handling object only comprises the changing food waste and rubbish of flushing the toilet that produce in community, composition is comparatively single, and anaerobic digestion effect is better.
Embodiment 2:
On the basis of embodiment 1, present embodiments provide 10000 people residential communities, produce 1.44 tons, ight soil average every day, changing food waste 3.6 tons, green garbage 100kg, adopt the specific implementation process that technical process as shown in Figure 1 processes it.
The changing food waste of each family is through the fragmentation of kitchen garbage breaking device 1, and form the material that granularity is about about 2mm, thus be more easily hydrolyzed, kitchen garbage breaking device 1 adopts certain commercially available domestic refuse destroyer; The changing food waste processed is entered Buffer Pool 2 after being collected by community kitchen drainage house steward and is hydrolyzed, and the time is about 10 days, and the volume of Buffer Pool 2 is 300m
3left and right.
Hydrolyzed waste water, flush the toilet waste water and green garbage mix in mixing pit 3, and mixing time is 6 ~ 12 hours, and mixing pit 3 volume is 450m
3left and right.
The integrated complete equipment that enrichment process adopts certain equipment vendors to provide, and adopt the parallel connection of multiple stage thickening equipment to use, ensure concentrated reliability and validity.
Anaerobic digester 5 adopts the two-stage anaerobic digestion pool structure be arranged in series, and anaerobic digester 5 cumulative volume is 900m
3left and right, increases utilising efficiency organic in sewage; The time of the high-concentration sewage anaerobically fermenting in anaerobic digester 5 after concentrated is about 20 days, water temperature about 30 ~ 35 DEG C.Wherein, in order to overcome the too low problem of water temperature in anaerobic digester, introducing earth-source hot-pump system, by consuming a small amount of electric energy, the Energy harvesting in soil being got up, for anaerobic digester provides heat.
Marsh gas purifying part, arranges gas blower in the exhaust conduit inlet side of anaerobic digester 5, biogas is sent into thionizer 9 and carries out biogas desulfurization, and finally obtaining product is pure biogas; Biogas is through gas internal-combustion engine 11 combustion power generation, obtain electric energy, by grid integration community electrical network 12, about can produce the electric power of 2000KWh every day, be equivalent to the economic benefit (calculating according to subsidy electricity price 0.25 yuan/degree, basic electricity price 0.588 yuan/degree) of 1600 yuan.
Liquid natural pond, natural pond Slag treatment part, Digestive system from anaerobic digester 5 is separated into natural pond liquid and natural pond slag after centrifuge dehydration, natural pond liquid is through successively adding magnesium oxide and iron trichloride formation organism precipitation, and organism precipitation mixing natural pond slag can be used as fertilizer to carry out selling or Intra-cell greening use.
In sum, this community provided by the invention organism digests degraded producing methane power generation system on the spot by carrying out pre-treatment in refuse source of generation, Anaerobic Digestion on the spot, and flow process is short, and processing cost is low; Changing food waste, without stacking and transport, does not pollute the environment, greatly reduces transportation cost; Handling object only comprises the changing food waste produced in community, flush the toilet rubbish and green garbage, and composition is comparatively single, and anaerobic digestion effect is better; Meanwhile, the electric energy that native system is produced is by online, and can obtain government about the policy of new forms of energy subsidize, and gets out of the red after using certain time limit.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (10)
1. community's organism digests a degraded producing methane power generation system on the spot, it is characterized in that: comprise the Buffer Pool (2), mixing pit (3), concentration basin (4) and the anaerobic digester (5) that connect successively, the opening for feed of described Buffer Pool (2) connects community kitchen drainage house steward, this community kitchen drainage house steward connects each drain of kitchen in community respectively, in described community, each drain of kitchen is respectively arranged with refuse breaking device (1), the discharge port of described mixing pit (3) opening for feed Connection Pool (2) and community flush the toilet waste water main drain, this community waste water main drain of flushing the toilet connects each toilet (6) in community, described anaerobic digester (5) top is provided with gas exhaust duct, this gas exhaust duct connects thionizer (9) opening for feed, described thionizer (9) discharge port connects gas internal-combustion engine (11).
2. community as claimed in claim 1 organism digests degraded producing methane power generation system on the spot, it is characterized in that: described mixing pit (3) opening for feed is also connected with green garbage pond (7).
3. community as claimed in claim 1 organism digests degraded producing methane power generation system on the spot, it is characterized in that: the gas exhaust duct between described thionizer (9) and anaerobic digester (5) is provided with tank for sewage gas one (8); Tank for sewage gas two (10) is provided with between thionizer (9) and gas internal-combustion engine (11).
4. community as claimed in claim 1 organism digests degraded producing methane power generation system on the spot, and it is characterized in that: described anaerobic digester (5) bottom is provided with liquid discharge pipe, liquid discharge pipe connects settling tank (13).
5. community as claimed in claim 4 organism digests degraded producing methane power generation system on the spot, it is characterized in that: be provided with centrifuge between described settling tank (13) and anaerobic digester (5).
6. community as claimed in claim 1 organism digests degraded producing methane power generation system on the spot, it is characterized in that: described anaerobic digester (5) bottom is provided with shore pipe, shore pipe is connected with recycle pump, and this circulating-pump outlet end is connected with anaerobic digester (5) inlet end.
7. the community's organism as described in any one of claim 1 ~ 6 digests the application of degraded producing methane power generation system on the spot, it is characterized in that: comprise the steps:
1) the kitchen waste refuse breaking device (1) of family each in community is broken into the small-particle organic waste that granularity is 2 ~ 3mm, small-particle organic waste enter Buffer Pool (2) and are hydrolyzed, hydrolysis time is 7 ~ 10 days, obtains hydrolyzed waste water;
2) waste water of flushing the toilet of each toilet (6) in community is collected by community's waste water main drain of flushing the toilet, by step 1) waste water of flushing the toilet of the hydrolyzed waste water that obtains and collection enters in mixing pit (3) and mixes, mixing time is 6 ~ 12 hours, obtains combined sewage;
3) by step 2) combined sewage that obtains is incorporated in concentration basin (4) and concentrates, and obtains the high-concentration sewage that organic concentration is 20%;
4) step 3) high-concentration sewage that obtains carries out anaerobic digestion in anaerobic digester (5), and anaerobic digestion time is 14 ~ 21 days, and temperature is 30 ~ 35 DEG C, obtains biogas and Digestive system;
5) step 4) biogas that obtains enters thionizer (9) and carries out desulfurizing and purifying, obtains pure biogas;
6) step 5) the pure biogas that obtains by gas internal-combustion engine (11) combustion power generation, obtain electric energy;
7) step 4) Digestive system that obtains after centrifuge centrifuge dehydration, obtain natural pond liquid and natural pond slag enters settling tank (13), in the liquid of natural pond, add magnesium oxide and iron trichloride obtain organism precipitation, organism precipitation carried out being mixed to form fertilizer with natural pond slag, the sewage obtained after the liquid precipitate of natural pond enters septic tank (14).
8. community as claimed in claim 7 organism digests the application of degraded producing methane power generation system on the spot, it is characterized in that: described step 2) in irregularly from green garbage pond (7) to mixing pit (3) in supplement green garbage.
9. community as claimed in claim 7 organism digests the application of degraded producing methane power generation system on the spot, it is characterized in that: described step 4) in anaerobic digester (5) adopt the two-stage anaerobic digestion pool structure be arranged in series.
10. community as claimed in claim 7 organism digests the application of degraded producing methane power generation system on the spot, it is characterized in that: described step 3) in concentration basin (4) be that multiple stage thickening equipment is in parallel.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105645694A (en) * | 2016-03-22 | 2016-06-08 | 中冶南方工程技术有限公司 | On-site treatment system of community organic wastes and method thereof |
| CN107269031A (en) * | 2016-04-08 | 2017-10-20 | 天津九马餐饮管理有限公司 | Energy-saving type mobile kitchen |
| CN109133544A (en) * | 2018-11-02 | 2019-01-04 | 石狮市展耀纺织科技有限公司 | The sludge treating system and its treatment process that pre-treatment wastewater treatment of printing and dyeing generates |
| WO2019094535A1 (en) * | 2017-11-13 | 2019-05-16 | Morrison Zhu Goodman Realty Group Llc | On-site generation of energy in a multi-unit building |
| CN110743898A (en) * | 2019-10-25 | 2020-02-04 | 鸿蒙能源(山东)有限公司 | Device for treating wet garbage by utilizing methane fuel cell and jointly exploiting geothermal energy |
| CN114085102A (en) * | 2021-10-26 | 2022-02-25 | 郴州市金陵科技有限责任公司 | Domestic waste treatment method and treatment system thereof |
| CN114763765A (en) * | 2021-01-11 | 2022-07-19 | 中国石油天然气集团有限公司 | Gas treatment system |
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