CN103395956A - Gas-storage-type anaerobic tank and method for treating dung and dirt of domestic animals by using same - Google Patents

Gas-storage-type anaerobic tank and method for treating dung and dirt of domestic animals by using same Download PDF

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Publication number
CN103395956A
CN103395956A CN2013103728181A CN201310372818A CN103395956A CN 103395956 A CN103395956 A CN 103395956A CN 2013103728181 A CN2013103728181 A CN 2013103728181A CN 201310372818 A CN201310372818 A CN 201310372818A CN 103395956 A CN103395956 A CN 103395956A
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China
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dirt
type anaerobic
air storing
storing type
anaerobic pond
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CN2013103728181A
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战树峰
王大勇
陈国东
王兵凯
胡丁今
王利平
童龙燕
邰晓辉
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BEIFANG ENVIRONMENT PROTECTION ENGINEERING Co Ltd HARBIN
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BEIFANG ENVIRONMENT PROTECTION ENGINEERING Co Ltd HARBIN
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Priority to CN2013103728181A priority Critical patent/CN103395956A/en
Publication of CN103395956A publication Critical patent/CN103395956A/en
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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
    • 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

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Abstract

The invention provides a gas-storage-type anaerobic tank and a method for treating dung and dirt of domestic animals by using the gas storage-type anaerobic tank, and relates to a device for treating the dung and dirt of the domestic animals and a method for treating the dung and dirt of the domestic animals by using the device and aiming at solving the problem that the device for treating the dung and dirt of the domestic animals is high in cost and has a poor treatment effect on the dung and dirt of the domestic animals. The gas-storage-type anaerobic tank comprises a concrete tank body, base membranes, a top membrane and a methane collection pipeline, wherein the base membranes are paved on the walls and bottom of the tank, the tank top is covered by the top membrane, and an annular methane collection pipeline is arranged on the top inside the concrete tank body. The treatment method comprises the following steps of: 1, feeding dung and dirt into the anaerobic tank and performing anaerobic fermentation reaction under a stirring effect so as to obtain a liquid and a methane; 2, enabling the mixed liquid to flow into a sedimentation tank and is performing mud and water separation; 3, enabling part of biogas residues to flow backwards, discharging biogas slurry used as a liquid fertilizer, thus finishing the treatment of the dung and dirt of the domestic animals. The gas storage-type anaerobic tank is simple in structure and has a good treatment effect on the dung and dirt of the domestic animals. The investment is saved as a storage facility does not need to be additionally constructed.

Description

A kind of air storing type anaerobic pond and apply the method that it processes the manure of livestock and poultry dirt
Technical field
The present invention relates to a kind of method of processing the device of manure of livestock and poultry dirt and applying this device processing manure of livestock and poultry dirt.
Background technology
Over nearly more than 20 years, China's aquaculture development is rapid, has obtained gratifying achievement, and meat, egg, fowl ultimate production keep the first in the world continuously, and to the level of improving the people's livelihood, adjustment people diet formula, raising farmers' income have been made huge contribution.But the development of aquaculture has inevitably produced a large amount of " livestock products public hazards ", and the phenomenon ubiquity is abandoned, discharged to livestock and poultry feces, aquaculture wastewater heap arbitrarily, and plant's area of concentration environmental degradation indirectly produces and pollutes water source, soil, air etc.Press the dirty excretion of excrement and calculate, the defecation amount of 1 pig is equivalent to 2 people's defecation amount, and presses BOD 5The quantity discharged meter of (biochemical oxygen demand (BOD)), 1 pig is equivalent to 13 people.Nowadays to the excremental processing of fowl poultry, become the burden of intensive culture industry, to controlling to of plant's environment extremely urgent stage.
In order to safeguard the environment of surrounding city, after the scale raising of city suburbs was carried out and is limited to adopt, prohibits and support, big city plant was again toward the rural area migration, and breeding pollution is again from outskirts of a town to transfer of rural.Livestock and poultry cultivation particularly scale animal and poultry cultivation is the great environmental problem of aggravation rural area and agricultural environment pollution.According to the investigation of State Bureau of Environmental Protection, the large-scale cultivation field of whole nation process environmental impact assessment is less than 10% of sum, and because the dirty treatment technology investment of existing excrement is large, promote difficulty, the scale raising of 80% left and right lacks necessary Pollution abatement measure.Therefore, the present invention proposes a kind of effective, investment is little, take up an area few manure of livestock and poultry pollution discharge treatment method, be conducive to apply in rural area.
Summary of the invention
The objective of the invention is to solve the high problem with processing the dirty weak effect of manure of livestock and poultry of existing livestock and poultry feces treatment unit cost, and a kind of air storing type anaerobic pond is provided and applies the method that it processes the manure of livestock and poultry dirt.
Air storing type anaerobic pond of the present invention is comprised of concrete basin, counterdie, teleblem and collecting methane pipeline, inwall and the interior end at concrete basin are equipped with counterdie, the flip-top of counterdie is fixed on the outer, top of concrete basin, Chi Ding at concrete basin is coated with teleblem, teleblem and counterdie together are fixed on the outer at body top, pond, the collecting methane pipeline of annular is set at the inner top of concrete basin, in inwall and the junction, the interior end of concrete basin, is provided with the armpit angle; What wherein counterdie and teleblem adopted is polyethylene film.
The method that the present invention's application air storing type anaerobic pond is processed the manure of livestock and poultry dirt follows these steps to realize:
One, pretreated liquid excrement dirt is filled with to the air storing type anaerobic pond, liquid excrement is dirty to be mixed and adsorbs with the returned sluge from settling tank, under the hydraulic mixing effect, carries out the anaerobically fermenting reaction, obtains mixed solution and biogas;
Two, the mixed solution that step 1 is obtained flows into settling tank and carries out mud-water separation, obtains Zha He natural pond, natural pond liquid;
Three, a part of natural pond slag that step 2 is obtained is back to the air storing type anaerobic pond as returned sluge, and another part natural pond slag is discharged, and natural pond liquid is discharged as liquid fertilizer, completes the processing of manure of livestock and poultry dirt.
the process that the present invention's application air storing type anaerobic pond is processed the manure of livestock and poultry dirt is to make the liquid excrement dirt in the air storing type anaerobic pond be in the suspension admixture by the hydraulic agitator that is arranged at the bottom of the anaerobic pond pond, and utilize counterdie and teleblem to guarantee that the air storing type anaerobic pond is in condition of free-dioxygen, with the anaerobion (comprising facultative microbe) that adapts to water quality treatment, progressively become dominant population, organism wherein is by the hydrolysed ferment stage, produce hydrogen and produce the acetic acid stage, produce methane phase and be broken down into methane, the materials such as carbonic acid gas, the part larger molecular organics is broken down into small organic molecule.By anaerobic reaction, organic pollutant content reduces, and produces a large amount of biogas (methane) and be stored in the film formed bio gas storage chamber in top.Settling tank carries out natural pond liquid after mud-water separation and can be used as liquid fertilizer or enter the biochemical treatment link and proceed to process, and the natural pond slag can be used as agriculture fertilizer.
Air storing type anaerobic pond of the present invention and apply its method of processing the manure of livestock and poultry dirt and have the following advantages to sum up:
1, air storing type anaerobic pond collection biogas of the present invention is stored in one, and without separately building the biogas storage facility, system flow is succinct, saves and takes up an area and investment.Adopt hydraulic mixing in anaerobic pond, be complete hybrid reaction pattern, in the pond in without triphase separator, simple structure, operational management facilitates, low cost of manufacture.
2, application air storing type anaerobic pond is processed the respond well of manure of livestock and poultry dirt, produces methane speed and reaches 0.5m 3More than biogas/kgVSSd, biogas contains methane 65~70%.The present invention is directed to the dirty processing of middle-size and small-size plant manure of livestock and poultry, its pond holds less, and single pool volume is less than 2000m 3.
The accompanying drawing explanation
Fig. 1 is the process flow sheet that the present invention's application air storing type anaerobic pond is processed the manure of livestock and poultry dirt;
Fig. 2 is the organigram of air storing type anaerobic pond of the present invention, 1-concrete basin, and 2-counterdie, 3-teleblem, 4-collecting methane pipeline, 5-liquid excrement soiling solution face, when wherein the dotted line representative produced biogas, teleblem 3 did not float on liquid excrement soiling solution face;
Fig. 3 is the organigram of overlooking of air storing type anaerobic pond of the present invention, 4-collecting methane pipeline.
Embodiment
Embodiment one: in conjunction with shown in Figure 2, present embodiment air storing type anaerobic pond is comprised of concrete basin 1, counterdie 2, teleblem 3 and collecting methane pipeline 4, inwall and the interior end at concrete basin 1 are equipped with counterdie 2, the flip-top of counterdie 2 is fixed on the outer, top of concrete basin 1, at the Chi Ding of concrete basin 1, be coated with teleblem 3, teleblem 3 together is fixed on the outer at body top, pond with counterdie 2, the collecting methane pipeline 4 of annular is set at the inner top of concrete basin 1, in inwall and the junction, the interior end of concrete basin 1, is provided with the armpit angle; What wherein counterdie 2 and teleblem 3 adopted is polyethylene film.
present embodiment air storing type anaerobic pond adopts concrete basin as support structure, at pond body inwall and the interior end, with the high-strength polyethylene film, form counterdie, teleblem is also made by the welding of high-strength polyethylene film, on it, can lay lagging material for insulation, counterdie and teleblem form enclosed space, bottom is the dirty reaction compartment of excrement, teleblem can fluctuate, form the biogas storage space, without separately building the biogas storage facilities, the air storing type anaerobic pond is the reactive mode of mixing fully simultaneously, liquid excrement is dirty fully to be mixed with returned sluge, the residence time is long, sufficient reacting, processing efficiency is high.
Embodiment two: present embodiment is different from embodiment one is that the volume of air storing type anaerobic pond is 500~2000m 3.Other device is identical with embodiment one.
Embodiment three: what present embodiment was different from embodiment one or two is that described polyethylene film thickness is 2mm.Other device is identical with embodiment one or two.
The present embodiment anaerobic pond adopts the fluid-tight polyethylene film of high strength to invest pond body inwall as film body, avoids penetrating in soil because the concrete basin seepage makes the excrement dirt polluted underground water.
Embodiment four: present embodiment is different from one of embodiment one to three is that the gradient at described armpit angle is 1:1.Other device is identical with one of specific embodiment party one to three.
The setting at present embodiment armpit angle is beneficial to the welding of polyethylene film, improves the work-ing life of counterdie.
Embodiment five: the method that present embodiment application air storing type anaerobic pond is processed the manure of livestock and poultry dirt follows these steps to implement:
One, pretreated liquid excrement dirt is filled with to the air storing type anaerobic pond, liquid excrement is dirty to be mixed and adsorbs with the returned sluge from settling tank, under the hydraulic mixing effect, carries out the anaerobically fermenting reaction, obtains mixed solution and biogas;
Two, the mixed solution that step 1 is obtained flows into settling tank and carries out mud-water separation, obtains Zha He natural pond, natural pond liquid;
Three, a part of natural pond slag that step 2 is obtained is back to the air storing type anaerobic pond as returned sluge, and another part natural pond slag is discharged, and natural pond liquid is discharged as liquid fertilizer, completes the processing of manure of livestock and poultry dirt.
The described pre-treatment of present embodiment step 1 refers to that the manure of livestock and poultry dirt is carried out to grid maker, solid-liquid separating machine and grit water separator facility successively carries out conventional processing.
At the bottom of concrete sump, can be provided with the sewage collecting pipeline, if film body has damaged the leakage, can in time find, after anaerobic pond emptying, film body be repaired.
Anaerobically fermenting is carried out in liquid excrement dirt in the present embodiment pond, in the excrement dirt, organic pollutant is degraded, resolve into methane, carbonic acid gas and small organic molecule, the gaseous state resolvent enters teleblem, teleblem can fluctuate along with the variation of gaseous tension in film, when gaseous tension in film is zero, on teleblem is bubbled through the water column.Greater than zero the time, teleblem leaves the water surface, forms the space (bio gas storage chamber) of storage gas, the biogas that produces be used to storing anaerobic reaction when gaseous tension in film.The biogas that the air storing type anaerobic pond produces is collected by pipe outlet and is delivered to the biogas processing and utilizes system to carry out recycling via the collecting methane pipeline that is arranged on the pond inner top.Its process flow sheet as shown in Figure 1.
Embodiment six: what present embodiment was different from embodiment five is that the described natural pond of step 3 slag reflux ratio is 50%.Other step is identical with embodiment five.
Embodiment mono-: the present embodiment air storing type anaerobic pond is comprised of concrete basin 1, counterdie 2, teleblem 3 and collecting methane pipeline 4, inwall and the interior end at concrete basin 1 are equipped with counterdie 2, the flip-top of counterdie 2 is fixed on the outer, top of concrete basin 1, at the Chi Ding of concrete basin 1, be coated with teleblem 3, teleblem 3 together is fixed on the outer at body top, pond with counterdie 2, the collecting methane pipeline 4 of annular is set at the inner top of concrete basin 1, in inwall and the junction, the interior end of concrete basin 1, is provided with the armpit angle; What wherein counterdie 2 and teleblem 3 adopted is polyethylene film.
Wherein the length of the present embodiment air storing type anaerobic pond is 13m, and wide is 10m, is highly 6m, and polyethylene film thickness used is 2mm, and the gradient at armpit angle is 1:1, and armpit angle plagioclase is 1.5m.
Embodiment bis-: the method that the air storing type anaerobic pond of Application Example one is processed the manure of livestock and poultry dirt follows these steps to realize:
One, pretreated liquid excrement dirt is filled with to the air storing type anaerobic pond, liquid excrement is dirty to be mixed and adsorbs with the returned sluge from settling tank, under the hydraulic mixing effect, carries out the anaerobically fermenting reaction, obtains mixed solution and biogas;
Two, the mixed solution that step 1 is obtained flows into settling tank and carries out mud-water separation, obtains Zha He natural pond, natural pond liquid;
Three, a part of natural pond slag that step 2 is obtained is back to the air storing type anaerobic pond as returned sluge, and another part natural pond slag is discharged, and natural pond liquid is discharged as liquid fertilizer, completes the processing of manure of livestock and poultry dirt.
The reflux ratio of the present embodiment step 3 natural pond slag is 50%, and the dirty ss content of the pretreated liquid excrement of step 1 is less than or equal to 20000mg/L.In the natural pond liquid that obtains, SS is less than or equal to 300mg/L, and COD is less than 2000mg/L.Anaerobic reaction 10d can produce biogas, produces methane speed and reaches 0.5m 3Biogas/kgVSSd, biogas contain methane 65~70%, thereby demonstrate good treatment effect.

Claims (6)

1. air storing type anaerobic pond, it is characterized in that the air storing type anaerobic pond is by concrete basin (1), counterdie (2), teleblem (3) and collecting methane pipeline (4) form, inwall and the interior end at concrete basin (1) are equipped with counterdie (2), the flip-top of counterdie (2) is fixed on the outer, top of concrete basin (1), at the Chi Ding of concrete basin (1), be coated with teleblem (3), teleblem (3) together is fixed on the outer at body top, pond with counterdie (2), the collecting methane pipeline (4) of annular is set at the inner top of concrete basin (1), inwall and junction, the interior end at concrete basin (1) are provided with the armpit angle, what wherein counterdie (2) and teleblem (3) adopted is polyethylene film.
2. a kind of air storing type anaerobic pond according to claim 1, the volume that it is characterized in that the air storing type anaerobic pond is 500~2000m 3.
3. a kind of air storing type anaerobic pond according to claim 1, is characterized in that described polyethylene film thickness is 2mm.
4. a kind of air storing type anaerobic pond according to claim 1, the gradient that it is characterized in that described armpit angle is 1:1.
5. apply a kind of air storing type anaerobic pond as claimed in claim 1 and process the method for manure of livestock and poultry dirt, it is characterized in that the method for applying the dirt of air storing type anaerobic pond processing manure of livestock and poultry follows these steps to realize:
One, pretreated liquid excrement dirt is filled with to the air storing type anaerobic pond, liquid excrement is dirty to be mixed and adsorbs with the returned sluge from settling tank, under the hydraulic mixing effect, carries out the anaerobically fermenting reaction, obtains mixed solution and biogas;
Two, the mixed solution that step 1 is obtained flows into settling tank and carries out mud-water separation, obtains Zha He natural pond, natural pond liquid;
Three, a part of natural pond slag that step 2 is obtained is back to the air storing type anaerobic pond as returned sluge, and another part natural pond slag is discharged, and natural pond liquid is discharged as liquid fertilizer, completes the processing of manure of livestock and poultry dirt.
6. a kind of air storing type anaerobic pond according to claim 5 is processed the method for manure of livestock and poultry dirt, it is characterized in that the described natural pond of step 3 slag reflux ratio is 50%.
CN2013103728181A 2013-08-23 2013-08-23 Gas-storage-type anaerobic tank and method for treating dung and dirt of domestic animals by using same Pending CN103395956A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104004647A (en) * 2014-04-01 2014-08-27 方青海 Black membrane biogas digester
CN104401634A (en) * 2014-11-20 2015-03-11 北京京鹏环宇畜牧科技股份有限公司 Livestock and poultry feces storage system based on seepage-proof evaporation-proof technology and storage method of livestock and poultry feces storage system
CN108128894A (en) * 2017-12-25 2018-06-08 山东省农业科学院农业资源与环境研究所 A kind of milk cow and pig breeding farm waste low-cost high-efficiency fermentation process system
CN108483536A (en) * 2018-06-02 2018-09-04 安徽海康药业有限责任公司 A kind of recovery method of sewage disposal device and methane gas with floating roof

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JP2003260499A (en) * 2002-03-11 2003-09-16 Kurita Water Ind Ltd Anaerobic treatment apparatus for organic waste liquid
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104004647A (en) * 2014-04-01 2014-08-27 方青海 Black membrane biogas digester
CN104401634A (en) * 2014-11-20 2015-03-11 北京京鹏环宇畜牧科技股份有限公司 Livestock and poultry feces storage system based on seepage-proof evaporation-proof technology and storage method of livestock and poultry feces storage system
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CN108128894A (en) * 2017-12-25 2018-06-08 山东省农业科学院农业资源与环境研究所 A kind of milk cow and pig breeding farm waste low-cost high-efficiency fermentation process system
CN108483536A (en) * 2018-06-02 2018-09-04 安徽海康药业有限责任公司 A kind of recovery method of sewage disposal device and methane gas with floating roof

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Application publication date: 20131120