CN102502956B - Municipal organic waste combined anaerobic treatment process and equipment - Google Patents
Municipal organic waste combined anaerobic treatment process and equipment Download PDFInfo
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- CN102502956B CN102502956B CN201110339482.XA CN201110339482A CN102502956B CN 102502956 B CN102502956 B CN 102502956B CN 201110339482 A CN201110339482 A CN 201110339482A CN 102502956 B CN102502956 B CN 102502956B
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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
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/20—Waste processing or separation
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Abstract
The invention discloses a municipal organic waste combined anaerobic treatment process and equipment. The process comprises a preprocessing step, an anaerobic digestion processing step and a swampiness processing step. Municipal organic wastes comprise heterogenous semifluid wastes and homogeneous solid-liquid wastes. The preprocessing step is characterized in that: circular pulping processing is firstly carried out on the heterogenous semifluid wastes, solid-liquid separation is then carried out on the circularly pulped materials and the homogeneous solid-liquid wastes, and the obtained slurry is used for the anaerobic digestion processing step. The invention also discloses equipment for the process. According to the process and the equipment, the municipal organic wastes are adopted as processing objects; the problems of homogenization of the municipal organic wastes, difficulty in feed-in and feed-out, and mixed feeding combined digestion are solved; the efficiency and the import substitution rate of a reactor are further improved through technology improvement on an anaerobic digestion tank; the aim of combined digestion is achieved; and a blank of domestic high solid wet type municipal organic waste combined anaerobic digestion processing complete technology process engineering is filled.
Description
Technical field
The present invention relates to the process field of organic waste, a kind ofly specifically adopt high solid wet type anaerobic digestion techniques to carry out biological degradation to organic garbage of city and obtain resource utilization set technique and the equipment of biogas.
Background technology
Organic garbage of city mainly comprises heterogeneous body half fluidised form class rubbish (meal kitchen, fruits and vegetables rubbish) and homogeneous solid-liquid class rubbish (urban night soil, mud), and changing food waste is wherein mainly derived from the food residues that food-processing, food and beverage sevice and resident living etc. produce; Fruits and vegetables rubbish such as mainly refers in agricultural-food Transferring Base, the market of farm produce at the rubbish such as dish leaf that place produces, melon and fruit; Urban night soil and mud are respectively from public toilet or Residential areas septic tank and sewage work.Due to the continuous variation of organic garbage of city composition and the raising day by day of environmental quality requirement, conventional process mode such as sanitary landfill, burning and compost show various drawbacks gradually, and the organic garbage of city anaerobic digestion techniques that possesses efficient refuse processing and resource recovery double effects obtains pay attention to day by day.
At present, utilize anaerobic digestion techniques to process organic garbage of city and obtained abroad application quite widely, before the more than ten years, just had large-scale industrial production.In China, the history of Anaerobic Digestion municipal domestic organic refuse is also long-standing, is mainly used in the processing of feces of livestock and poultry, municipal sludge and high concentrated organic wastewater, the most typical little methane-generating pit in rural area that is applied as.In recent years, China in Beijing, the large-and-medium size cities such as Shanghai, Guangzhou, Shenzhen, or attempted utilizing anaerobic digestion techniques to process the organic garbage of city such as changing food waste, municipal sludge.But the domestic combined anaerobic digestion recycling treatment engineering that is directed to specially organic garbage of city does not also have what is heard, compared with developed countries, the through engineering approaches application level of Chinese municipal organic anaerobic digestion techniques is in urgent need to be improved.
At present, the research of Chinese municipal organic anaerobic digestion techniques is also in the preliminary stage, and the difficulty facing mainly contains the following aspects: the one, and organic garbage of city complicated component, physico-chemical property is inhomogeneous, variation range is larger, charging and discharging difficulty; The 2nd, urban night soil, mud and other organic garbage of city can not parallel feeding simultaneous digestions; The organic garbage of city such as meal kitchen, swill contain the composition that grease, inorganic salt etc. suppress anaerobic digestion; The 3rd, the efficiency of reactor is lower, and the residence time is long, conversion rate of organic matter is low, and anaerobic system domestic manufacture of key equipment rate is low.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of above-mentioned prior art, a kind of input and output material convenience, practicability and effectiveness are provided and can realize the Processes and apparatus that organic garbage of city is combined anaerobic treatment.
For achieving the above object, the present invention is by the following technical solutions:
A kind of municipal organic waste combined anaerobic treatment process, comprise pre-treatment step, Anaerobic Digestion step and natural pond moneyization treatment step, described organic garbage of city comprises heterogeneous body half fluidised form class rubbish and homogeneous solid-liquid class rubbish, described pre-treatment step is: heterogeneous body half fluidised form class rubbish first carries out circulation beating processing, described circulation beating is treated to: the material after making beating carries out solid-liquid separation, the slurries that obtain after solid-liquid separation re-start making beating and process, and reciprocation cycle repeatedly; Through circulation beating material after treatment, together carry out solid-liquid separation again with homogeneous solid-liquid class rubbish, gained slurries are used for carrying out Anaerobic Digestion step.
Further, described heterogeneous body half fluidised form class rubbish separable go out filtrate class rubbish, other parts are carried out circulation beating processing again after break process together with described filtrate class rubbish.
Further, the other parts in described heterogeneous body half fluidised form class rubbish except filtrate class rubbish are processed without making beating after break process, directly carry out solid-liquid separation, the outward transport of dewatering.
Further, described Anaerobic Digestion step comprises inanimate matter separation, pocket type oil removing, homogeneous and anaerobic ferment process, in described anaerobic ferment process, anaerobic fermentation tank enters material under adopting and above goes out the mode of biogas, natural pond liquid, and the bottom in anaerobic fermentation tank and top are equipped with respectively stirring technique, inside is furnished with Hydraulic Circulation heating treatment process.
Further, the liquid return of described natural pond liquid gained after processed enters homogenizing step for regulating material characteristic as making beating with process water or backflow.
A kind of organic waste combined anaerobic treatment process equipment, comprise the pretreatment unit that end contains solid-liquid separating machine, also comprise Anaerobic Digestion device and natural pond moneyization treatment unit, described pretreatment unit also comprises making beating tank, in described making beating tank, be provided with Hydraulic Circulation making beating reamer pump, making beating tank is communicated with the input terminus of described solid-liquid separating machine by the Hydraulic Circulation reamer pump of pulling an oar; The first liquid output terminal of solid-liquid separating machine is communicated with the input terminus of making beating tank by pipeline, valve, pump; The second liquid output terminal of solid-liquid separating machine is connected with Anaerobic Digestion device by pipeline, valve, pump.
Further, described Anaerobic Digestion device comprises inanimate matter separator, pocket type waste-oil scavenger, homogeneous tank, spiral pump and anaerobic fermentation tank, solid-liquid separating machine in pretreatment unit is connected successively with described inanimate matter separator, pocket type waste-oil scavenger, homogeneous tank, between described homogeneous tank and anaerobic fermentation tank bottom, by spiral pump, is connected.
Further, described anaerobically fermenting tank top is provided with the overhead for abolishing materials inside crust, and bottom is provided with for the mixed uniformly bottom stirrer of material, and inside is also provided with the Hydraulic Circulation agitator for maintaining steady temperature.
Further, the end of described natural pond moneyization treatment unit is provided with natural pond liquid pool, and described natural pond liquid pool is communicated with described making beating tank and homogeneous tank respectively through pump, pipeline and two valves.
Compared with prior art, the present invention has following beneficial effect:
1, pre-treatment adopts mechanical cycles beating process, has successfully solved the input and output material difficulty that exists in high solid digestion and material two hang-ups that homogenize; And will together carry out solid-liquid separation with homogeneous solid-liquid class rubbish again through circulation beating material after treatment, gained slurries are used for carrying out Anaerobic Digestion step, have realized the associating anaerobic treatment of organic garbage of city.
2, the design of inanimate matter separator efficiently solves inanimate matter in material and accumulates the reactor plugs problem causing.
3, for the high feature of China's organic waste oleaginousness, adopt pocket type waste-oil scavenger, guaranteed carrying out smoothly of anaerobic fermentation process.
4, stirring " broken shell " technology in top can effectively solve the crust problem of anaerobic reactor; It is constant that inner waterpower hydronics can utilize produced biogas self-energy to maintain temperature of reactor.
5, the natural pond liquid of anaerobically fermenting processing gained can reflux and maybe can reflux and carry out homogenization step for regulating material characteristic with process water as making beating, and resource can be effectively utilized.
6, in addition, for the unsettled feature of organic garbage of city supplied materials, the also other charging route of special design, even supplied materials biodegradability is poor, when material is after fragmentation, can process without making beating, directly material be sent into solid-liquid separating machine and dewatered and send outside, solve the unsettled problem of organic garbage of city supplied materials.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is municipal organic waste combined anaerobic treatment process schematic flow sheet of the present invention;
Fig. 2 is municipal organic waste combined anaerobic treatment process equipment of the present invention and process flow sheet.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
Organic garbage of city comprises heterogeneous body half fluidised form class rubbish (changing food waste, fruits and vegetables rubbish etc.) and homogeneous solid-liquid class rubbish (urban night soil, domestic sludge etc.), municipal organic waste combined anaerobic treatment process of the present invention comprises pre-treatment step, Anaerobic Digestion step and natural pond moneyization treatment step, specifically as shown in Figure 1:
(1) pre-treatment step is:
First changing food waste enters storage bin or emergency stack stock ground, percolate diafiltration in storage bin or emergency stack stock ground is to collecting tank, the percolate of collecting tank pumps into making beating tank and carries out circulation beating processing, in storage bin or emergency stack stock ground remaining other high solid class rubbish after fragmentation, enter making beating tank carry out circulation beating processing, through the material after treatment of pulling an oar, enter solid-liquid separating machine and carry out solid-liquid separation, simultaneously, urban night soil, domestic sludge directly enters solid-liquid separating machine and carries out solid-liquid separation after simple process, after entering garbage collection box, making beating tank and the isolated oversize material of solid-liquid separating machine carry out landfill or compost treatment, the slurries (material after pulp) that solid-liquid separating machine is separated are for next step Anaerobic Digestion step.Circulation beating link in pre-treatment step homogenizes material, is convenient to the further processing of subsequent technique, has solved this difficult problem of input and output material difficulty simultaneously.
(2) Anaerobic Digestion step:
The slurries of separating through solid-liquid separating machine enter pocket type waste-oil scavenger through inanimate matter separator, skimming plant in pocket type waste-oil scavenger is removed top layer grease again, and the material after oil removing enters homogeneous tank again and by spiral pump, squeezes into anaerobic fermentation tank and carry out Anaerobic Digestion after stirring.Wherein, the input and output material of anaerobic fermentation tank adopts the mode of " bottom in and top out ", and (broken shell refers to broken long-play process for " broken shell " to be equipped with overhead, the scleroma layer that one deck that anaerobically fermenting pot liquid upper surface forms is comprised of stearates material), be equipped with bottom stirrer and evenly mix for material, be equipped with Hydraulic Circulation agitator for maintaining steady temperature.The fermentor tank residence time is designed to 20 days, charging solid content scope 8%-12%, and volume yield rate can reach 2.0.
(3) natural pond moneyization treatment step:
After Anaerobic Digestion, discharge biogas, cripple, natural pond liquid, the biogas that produces enters methane boiler through air storage bag, gas-cleaning installation, institute's heat-dissipating amount is heated up water for anaerobic fermentation tank heating and heating, also can sending and receiving electricity equipment utilization marsh gas power generation, the unnecessary gas that air storage bag is discharged is lighted emptying by torch on duty; The cripple of producing, natural pond liquid enter mud storage pool, and then through dewatering unit processing, solid part outward transport compost or landfill disposal, liquid portion enters natural pond liquid pool, the natural pond liquid of natural pond liquid pool can be back to making beating tank as pulling an oar with process water or being back to homogeneous tank for regulating material characteristic, the unnecessary car taken out outward transport.
The 2 pairs of municipal organic waste combined anaerobic treatment process of the present invention and equipment are elaborated by reference to the accompanying drawings more below:
First changing food waste in organic garbage of city is discharged into storage bin 101 and carries out preliminary solid-liquid separation, and storage bin 101 has collecting tank 102, and the unnecessary moisture of material enters collecting tank 102 through this seepage flow, directly by 1# submersible sewage pump 103, sends into making beating tank 104.Solid materials is being delivered to homocline crusher 106 via drag conveyer 105, abolishes plastics bag and crushes material to below particle diameter 150mm.Broken good material is sent into revolution shearing type crusher 108 via 1# scraper conveyor 107 and is crushed to below particle diameter 50mm, then via 1# reversible belt machine 109, is sent to 2# scraper conveyor 110, and by it, material is sent in making beating tank 104 and pulled an oar.Nucleus equipment in making beating tank 104 is Hydraulic Circulation making beating reamer pump 111, its main broken function has been coordinated with the turbine disk by turbine cutters in pump, sword is all with on every impeller limit on turbine cutters, along with the high speed rotating of turbine, the material that sucks pumping hole will together be cut repeatedly by impeller limit and the turbine disk, thereby be pulverized.Material after pulverizing can be sprayed by pump middle part stirring port, or operation switching valve, makes it to pump from outlet
During making beating, in making beating tank 104, first need to add a certain amount of process water, until interior two Hydraulic Circulations making beating of making beating tank 104 reamer pump 111 can normally be worked, two Hydraulic Circulation making beating reamer pumps 111 are pulled an oar simultaneously, adopt the mode of circulation beating, beating time 60 minutes.Circulation beating detailed process is as follows:
Its Matter Transfer process is: making beating tank 104 → solid-liquid separating machine 112 → collecting tank 102 → 1# submersible sewage pump 103 → making beating tank 104.Its valve and equipment operational procedure are: open → valve of valve 113 114 close → solid-liquid separating machine of open → valve 115 112 start → Hydraulic Circulation making beating reamer pump 111 move → Hydraulic Circulation making beating reamer pump 111 dischargings → 1# submersible sewage pumps 103 move.
Material is after 104 making beating of making beating tank, by 111 dischargings of Hydraulic Circulation making beating reamer pump, to solid-liquid separating machine 112, material is through solid-liquid separation, and solid residue is transported outward, liquid enters collecting tank 102 and again returns making beating tank 104 by 1# submersible sewage pump 103, so far completes a circulation.General beating time 10 minutes, discharging RCT 5 minutes, can complete pulp after four circulations substantially.
After making beating, by 111 dischargings of Hydraulic Circulation making beating reamer pump.Discharging process is as follows:
Material discharging process is: making beating tank 104 → solid-liquid separating machine 112 → slag stock pump 116 → inanimate matter separator 201 → pocket type waste-oil scavenger 202; Its valve and equipment operational procedure are: open → valve of valve 115 114 open → solid-liquid separating machine of close → valve 203 112 start → Hydraulic Circulation reamer pump 111 dischargings → slag stock pumps 116.
Material completes after making beating, all through solid-liquid separating machine 112, carries out solid-liquid separation (not shown) with urban night soil, domestic sludge in organic garbage of city, isolates and is greater than the outward transport of 4mm material extrusion dehydration; The material that is less than 4mm is delivered to pocket type waste-oil scavenger 202 by slag stock pump 116 through inanimate matter separator 201.
Material, by after 202 oil removings of pocket type waste-oil scavenger, enters homogeneous tank 204, and charging front opening grid agitator stirs 10～15 minutes, controls and feeds intake load or add reagent, maintains the pH value of charging at 6.8-7.5.Open anaerobic fermentation tank 208 overhead and bottom stirrer, open homogeneous tank 204 feed valves 205 and spiral pump feed valve 206, then open feed worm pump 207 to anaerobic fermentation tank 208 chargings.
In the selection of anaerobic fermentation tank 208 tank bodies, abandoned traditional Steel Concrete fermentor tank and welding cylinder of steel, selected assembled tank, assembled tank is compared traditional Steel Concrete fermentor tank and welding cylinder of steel, is not subject to seasonal effect in construction environment.The tank body material that enamel assembling technology adopts new and high technology to make, with the on-site consolidation mode final molding of rapid low consumption, the anaerobic reactor equipment of composition complete set, make the agent set of biogas engineering device reach advanced technology, preparation rationally, excellent property, rotproofness is good, maintenance is convenient, specious effect.Tank body material adopts the enamel layer prefabricated steel of high anticorrosion grade assembled in bolt mode, and bolt place adds special sealing material leakproof, and the protective layer of this kind of prefabricated steel formation can not only stop tank body corrosion, and has the function of antiacid alkali.
In anaerobic fermentation tank 208 operational processs, when observing fermentation liquid level crust from viewing window, open overhead and abolish scum silica frost, when winter temperature is lower, open waterpower circulation stirring device and heating rod and heat to tank body, maintain constant anaeration in normal temperature environment, guarantee equipment steady running.Depending on material situation, after operation some cycles, open valve 310 carries out spoil disposal, and cripple enters cripple pond 301.
The biogas that anaerobic digestion process produces, after desulfurization dewatering device, enters air storage bag 311.Air storage bag 311 is provided with positive/negative pressure protector, and maximum positive voltage is 1Kpa.Institute's storing gas passes into methane boiler 312, produces heat and can be used for the heating of anaerobism equipment and warm oneself and heat up water, and unnecessary gas is lighted emptying by torch 313 on duty.
In addition, for the unsettled feature of municipal wastes supplied materials, the also other charging route of special design, even supplied materials biodegradability is poor, after material is via 108 fragmentations of revolution shearing type crusher, by 1# reversible belt machine 109, be sent to 2# reversible belt machine 117, and by it, directly material sent into solid-liquid separating machine 112 and dewatered and send outside.
The present invention has filled up domestic high solid wet type organic garbage of city combined anaerobic digestion and has processed complete this blank of technical matters through engineering approaches, using organic garbage of city as handling object, by pre-treatment machinery beating process, solve organic garbage of city and homogenize and input and output material difficult problem; By the heterogeneous bodies such as changing food waste half fluidised form class rubbish is processed and carried out solid-liquid separation with the homogeneous solid-liquid class rubbish such as municipal sludge and urban night soil through making beating, solved parallel feeding simultaneous digestion problem; By the technological transformation of anaerobic digestor has been improved to reactor efficiency and the localization rate of parts and components, reach the object of simultaneous digestion.
In sum, municipal organic waste combined anaerobic treatment process provided by the present invention and equipment are compared conventional art and aspect high solid wet type combination treatment and recycling, are had obvious advantage.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record previous embodiment is modified, or part technical characterictic is wherein equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a municipal organic waste combined anaerobic treatment process, comprise pre-treatment step, Anaerobic Digestion step and natural pond moneyization treatment step, described organic garbage of city comprises heterogeneous body half fluidised form class rubbish and homogeneous solid-liquid class rubbish, it is characterized in that, described pre-treatment step is: heterogeneous body half fluidised form class rubbish first carries out circulation beating processing, described circulation beating is treated to: the material after making beating carries out solid-liquid separation, the slurries that obtain after solid-liquid separation re-start making beating and process, and reciprocation cycle repeatedly; Through circulation beating material after treatment, together carry out solid-liquid separation again with homogeneous solid-liquid class rubbish, gained slurries are used for carrying out Anaerobic Digestion step.
2. combined anaerobic treatment process according to claim 1, is characterized in that, described heterogeneous body half fluidised form class rubbish separable go out filtrate class rubbish, other parts are carried out circulation beating processing again after break process together with described filtrate class rubbish.
3. combined anaerobic treatment process according to claim 1, is characterized in that, the other parts in described heterogeneous body half fluidised form class rubbish except filtrate class rubbish are processed without making beating after break process, directly carry out solid-liquid separation, the outward transport of dewatering.
4. according to the combined anaerobic treatment process described in claim 1,2 or 3, it is characterized in that, described Anaerobic Digestion step comprises inanimate matter separation, pocket type oil removing, homogeneous and anaerobic ferment process, in described anaerobic ferment process, anaerobic fermentation tank enters material under adopting and above goes out the mode of biogas, natural pond liquid, and the bottom in anaerobic fermentation tank and top are equipped with respectively stirring technique, inside is furnished with Hydraulic Circulation heating treatment process.
5. combined anaerobic treatment process according to claim 4, is characterized in that, the liquid return of described natural pond liquid gained after processed enters homogenizing step for regulating material characteristic as making beating with process water or backflow.
6. an organic waste combined anaerobic treatment process equipment, comprise the pretreatment unit that end contains solid-liquid separating machine, also comprise Anaerobic Digestion device and natural pond moneyization treatment unit, it is characterized in that, described pretreatment unit also comprises making beating tank, in described making beating tank, be provided with Hydraulic Circulation making beating reamer pump, making beating tank is communicated with the input terminus of described solid-liquid separating machine by the Hydraulic Circulation reamer pump of pulling an oar; The first liquid output terminal of solid-liquid separating machine is communicated with the input terminus of making beating tank by pipeline, valve, pump; The second liquid output terminal of solid-liquid separating machine is connected with Anaerobic Digestion device by pipeline, valve, pump.
7. combined anaerobic treatment process equipment according to claim 6, it is characterized in that, described Anaerobic Digestion device comprises inanimate matter separator, pocket type waste-oil scavenger, homogeneous tank, spiral pump and anaerobic fermentation tank, solid-liquid separating machine in pretreatment unit is connected successively with described inanimate matter separator, pocket type waste-oil scavenger, homogeneous tank, between described homogeneous tank and anaerobic fermentation tank bottom, by spiral pump, is connected.
8. combined anaerobic treatment process equipment according to claim 7, it is characterized in that, described anaerobically fermenting tank top is provided with the overhead for abolishing materials inside crust, bottom is provided with for the mixed uniformly bottom stirrer of material, and inside is also provided with the Hydraulic Circulation agitator for maintaining steady temperature.
9. combined anaerobic treatment process equipment according to claim 8, is characterized in that, the end of described natural pond moneyization treatment unit is provided with natural pond liquid pool, and described natural pond liquid pool is communicated with described making beating tank and homogeneous tank respectively through pump, pipeline and two valves.
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| CN104907316B (en) * | 2015-05-27 | 2017-11-24 | 北京世纪国瑞环境工程技术有限公司 | A kind of kitchen garbage and civic feces total system and its method |
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