CN105110595A - System for resource reuse through anaerobic fermentation technology - Google Patents
System for resource reuse through anaerobic fermentation technology Download PDFInfo
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- CN105110595A CN105110595A CN201510596941.0A CN201510596941A CN105110595A CN 105110595 A CN105110595 A CN 105110595A CN 201510596941 A CN201510596941 A CN 201510596941A CN 105110595 A CN105110595 A CN 105110595A
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- methane
- anaerobic fermentation
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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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- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a system for resource reuse through an anaerobic fermentation technology. The system comprises a sludge conditioning device used for initial mixing and settling treatment of sludge, an anaerobic digester used for carrying out anaerobic fermentation treatment on the sludge obtained after initial mixing and settling treatment, a methane treating system used for cleaning methane gas generated in anaerobic fermentation treatment, and a generator used for generating electricity through the clean methane for reuse of the methane resource. The sludge conditioning device is connected with the anaerobic digester, the anaerobic digester is connected with the methane treating system, and the methane treating system is connected with the generator. The methane gas generated through anaerobic fermentation is cleaned and then used for generating electricity, so that resource utilization of the sludge is achieved; meanwhile, the initial mixing and settling treatment is carried out before anaerobic fermentation, so that the combustible material content of the methane gas generated by the sludge in the anaerobic fermentation link is higher, the whole system has the advantage that resources can be sustainably used, and more attention is paid to environmental friendliness and energy conservation.
Description
Technical field
The present invention relates to environmental technology field, specifically, is a kind of system adopting anaerobic fermentation technology to carry out resource reutilization.
Background technology
Organic substance is under anaerobic decomposed by anerobe and produces the process of methane and carbon dioxide, because oxygen shifts out from organism under the condition of air deficiency and generates CO2's.No matter be acid fermentation, or biogas fermentation, the oxygen participating in biochemical reaction is all the nitrite coming from water, organism, nitrate or be decomposed.
The biochemical stage of anaerobic digestion was mainly divided into the next stage:
Ith stage hydrolysis produces acid phase:
Insoluble larger molecular organics in sewage, as polysaccharide, starch, Mierocrystalline cellulose, hydro carbons (alkane, alkene, alkynes etc.) hydrolysis, primary product be first, second, third, butyric acid, lactic acid; And then amino acid, protein, fat splitting generate ammonia and amine, polypeptide etc. (so some books produce acid hydrolysis be again divided into two stages).
IIth stage Anaerobic fermentation gas stage:
These small organic molecules, under the effect of methanogen, are converted into methane by the fermenting process of methanobacteria by the small organic molecules such as the Ith stage product formic acid, acetic acid, methylamine, methyl alcohol.So not very big in COD, BOD value change of acidication stage, the organism only in the aerogenesis stage due to formation COD or BOD is overflowed mainly with the form of CO2 and H2, just makes COD, BOD in waste water obviously decline.
At souring stage, hydrolysis of organic matter is converted into the 1st micromolecular organism that directly can be utilized by methanobacteria by fermenting bacteria, as acetic acid, formic acid, methyl alcohol and methylamine etc.; 2nd class is the organism that directly can not be utilized by methanobacteria, and as propionic acid, butyric acid, lactic acid, ethanol etc., incomplete anaerobic digestion or fermentation leave it at that.If continue full anaerobic process, then produce hydrogen, the 2nd type organic is further converted to hydrogen and acetic acid by acetogen.
IIIth methane phase stage in stage:
Methane-producing bacteria is converted into methane matrix such as formic acid, acetic acid, methylamine, methyl alcohol by different approaches, and wherein topmost matrix is acetic acid.
Summary of the invention
The object of the invention is to design a kind of system adopting anaerobic fermentation technology to carry out resource reutilization, after the methane gas produced by anaerobically fermenting carries out clean, for generating, to carry out recycling sludge utilization, also mixed and precipitation process by first before carrying out anaerobically fermenting simultaneously, the methane gas noncombustible matter content that mud is produced in anaerobically fermenting link is higher, and whole system has the characteristic of Substantial evaluation resource, and more focuses on environmental protection and energy saving.
The present invention is achieved through the following technical solutions: a kind of system adopting anaerobic fermentation technology to carry out resource reutilization, comprise tentatively mix for mud, the sludge conditioning device of precipitation process; For the mud through tentatively mixing, after precipitation process being carried out the anaerobic digestor of anaerobically fermenting process; For carrying out the methane treatment system of clean to the methane gas produced when anaerobically fermenting process; For clean methane being carried out the generator generated electricity in order to methane resource recycling, described sludge conditioning device connects anaerobic digestor, and described anaerobic digestor connects methane treatment system, and described methane treatment system connects generator.
Further to better implement the present invention, dewatering unit is provided with in described methane treatment system, described dewatering unit connects anaerobic digestor and generator respectively, the methane gas produced during anaerobically fermenting process is carried out processed by described dewatering unit, then the methane gas of have no water or little water is delivered to generator and generates electricity.
Further to better implement the present invention, the water departed from when methane gas also dewaters by described dewatering unit is counter to be delivered in anaerobic digestor.
Further to better implement the present invention, also desulfurizer is provided with in described methane treatment system, described desulfurizer connects dewatering unit and generator respectively, methane gas after dewatering unit dehydration is carried out desulfurization process by described desulfurizer again, is then transported in generator by the methane gas without sulphur or few sulphur and generates electricity.
Further to better implement the present invention, also comprise Digestive system surge tank, described Digestive system surge tank is used for the mud after anaerobically fermenting to carry out precipitating in order to carrying out solid-liquid separation, and described Digestive system surge tank connects anaerobic digestor.
Further to better implement the present invention, also comprise the rotatable reactor for solid-liquid separation, the mud after precipitation is carried out rotating separation by described rotatable reactor, and described rotatable reactor connects Digestive system surge tank.
Further to better implement the present invention, also comprise natural pond liquid hold-up vessel, described natural pond liquid hold-up vessel connects rotatable reactor.
Further to better implement the present invention, also comprise the biological pond for natural pond liquid purifying treatment, described biological pond connects natural pond liquid hold-up vessel.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) after the methane gas that anaerobically fermenting produces by the present invention carries out clean, for generating, to carry out recycling sludge utilization, also mixed and precipitation process by first before carrying out anaerobically fermenting simultaneously, the methane gas noncombustible matter content that mud is produced in anaerobically fermenting link is higher, whole system has the characteristic of Substantial evaluation resource, and more focuses on environmental protection and energy saving.
(2) the present invention also utilizes biological pond technology that produced natural pond liquid is cleaned process, is convenient to clean, being emitted by the natural pond liquid after process of environmental protection, and can not pollute surrounding enviroment.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1:
A kind of system adopting anaerobic fermentation technology to carry out resource reutilization, as shown in Figure 1, after the methane gas being convenient to anaerobically fermenting to produce carries out clean, for generating, to carry out recycling sludge utilization, simultaneously before carrying out anaerobically fermenting also by first mixed and precipitation process, the methane gas noncombustible matter content that mud is produced in anaerobically fermenting link is higher, is arranged to following structure especially: comprise tentatively mix for mud, the sludge conditioning device of precipitation process; For the mud through tentatively mixing, after precipitation process being carried out the anaerobic digestor of anaerobically fermenting process; For carrying out the methane treatment system of clean to the methane gas produced when anaerobically fermenting process; For clean methane being carried out the generator generated electricity in order to methane resource recycling, described sludge conditioning device connects anaerobic digestor, and described anaerobic digestor connects methane treatment system, and described methane treatment system connects generator.
Embodiment 2:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, as shown in Figure 1, further to better implement the present invention, dewatering unit is provided with in described methane treatment system, described dewatering unit connects anaerobic digestor and generator respectively, the methane gas produced during anaerobically fermenting process is carried out processed by described dewatering unit, then the methane gas of have no water or little water is delivered to generator and generates electricity.
Embodiment 3:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, and as shown in Figure 1, further to better implement the present invention, the water departed from when methane gas also dewaters by described dewatering unit is counter to be delivered in anaerobic digestor.
Embodiment 4:
The present embodiment is the enterprising one-step optimization in basis in embodiment 2 or 3, further to better implement the present invention, as shown in Figure 1, also desulfurizer is provided with in described methane treatment system, described desulfurizer connects dewatering unit and generator respectively, methane gas after dewatering unit dehydration is carried out desulfurization process by described desulfurizer again, is then transported in generator by the methane gas without sulphur or few sulphur and generates electricity.
Embodiment 5:
The present embodiment is at the enterprising one-step optimization in the basis of above-mentioned any embodiment, as shown in Figure 1, further to better implement the present invention, also comprise Digestive system surge tank, described Digestive system surge tank is used for the mud after anaerobically fermenting to carry out precipitating in order to carrying out solid-liquid separation, and described Digestive system surge tank connects anaerobic digestor.
Embodiment 6:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, as shown in Figure 1, further to better implement the present invention, also comprise the rotatable reactor for solid-liquid separation, mud after precipitation is carried out rotating separation by described rotatable reactor, and described rotatable reactor connects Digestive system surge tank.
Embodiment 7:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, as shown in Figure 1, further to better implement the present invention, also comprises natural pond liquid hold-up vessel, and described natural pond liquid hold-up vessel connects rotatable reactor.
Embodiment 8:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, as shown in Figure 1, further to better implement the present invention, also comprises the biological pond for natural pond liquid purifying treatment, and described biological pond connects natural pond liquid hold-up vessel.
The above is only preferred embodiment of the present invention, and not do any pro forma restriction to the present invention, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present invention, all falls within protection scope of the present invention.
Claims (8)
1. adopt anaerobic fermentation technology to carry out a system for resource reutilization, it is characterized in that: comprise tentatively mix for mud, the sludge conditioning device of precipitation process; For the mud through tentatively mixing, after precipitation process being carried out the anaerobic digestor of anaerobically fermenting process; For carrying out the methane treatment system of clean to the methane gas produced when anaerobically fermenting process; For clean methane being carried out the generator generated electricity in order to methane resource recycling, described sludge conditioning device connects anaerobic digestor, and described anaerobic digestor connects methane treatment system, and described methane treatment system connects generator.
2. a kind of system adopting anaerobic fermentation technology to carry out resource reutilization according to claim 1, it is characterized in that: in described methane treatment system, be provided with dewatering unit, described dewatering unit connects anaerobic digestor and generator respectively, the methane gas produced during anaerobically fermenting process is carried out processed by described dewatering unit, then the methane gas of have no water or little water is delivered to generator and generates electricity.
3. a kind of system adopting anaerobic fermentation technology to carry out resource reutilization according to claim 2, is characterized in that: the water departed from when methane gas also dewaters by described dewatering unit is counter to be delivered in anaerobic digestor.
4. a kind of system adopting anaerobic fermentation technology to carry out resource reutilization according to claim 2, it is characterized in that: in described methane treatment system, be also provided with desulfurizer, described desulfurizer connects dewatering unit and generator respectively, methane gas after dewatering unit dehydration is carried out desulfurization process by described desulfurizer again, is then transported in generator by the methane gas without sulphur or few sulphur and generates electricity.
5. a kind of system adopting anaerobic fermentation technology to carry out resource reutilization according to any one of claim 1-3, it is characterized in that: also comprise Digestive system surge tank, described Digestive system surge tank is used for the mud after anaerobically fermenting to carry out precipitating in order to carrying out solid-liquid separation, and described Digestive system surge tank connects anaerobic digestor.
6. a kind of system adopting anaerobic fermentation technology to carry out resource reutilization according to claim 5, it is characterized in that: also comprise the rotatable reactor for solid-liquid separation, mud after precipitation is carried out rotating separation by described rotatable reactor, and described rotatable reactor connects Digestive system surge tank.
7. a kind of system adopting anaerobic fermentation technology to carry out resource reutilization according to claim 6, is characterized in that: also comprise natural pond liquid hold-up vessel, and described natural pond liquid hold-up vessel connects rotatable reactor.
8. a kind of system adopting anaerobic fermentation technology to carry out resource reutilization according to claim 7, is characterized in that: also comprise the biological pond for natural pond liquid purifying treatment, and described biological pond connects natural pond liquid hold-up vessel.
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| CN201510596941.0A CN105110595A (en) | 2015-09-18 | 2015-09-18 | System for resource reuse through anaerobic fermentation technology |
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| CN201510596941.0A CN105110595A (en) | 2015-09-18 | 2015-09-18 | System for resource reuse through anaerobic fermentation technology |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351395A (en) * | 2011-06-23 | 2012-02-15 | 杭州职业技术学院 | System and method for treating pig manure and cultivation sewage |
| CN102992559A (en) * | 2012-12-07 | 2013-03-27 | 中船重工环境工程有限公司 | Method for comprehensively utilizing anaerobic digestion and carbonization of municipal sludge |
| CN103402929A (en) * | 2011-02-11 | 2013-11-20 | 韩国投透化工有限公司 | Eco-friendly system for generating a bio gas in high concentration and treating fermentation remnants using livestock excretions |
| WO2015019382A1 (en) * | 2013-08-05 | 2015-02-12 | 国立大学法人 東京工業大学 | Two-stage methane gas generating system having front end aggregation step |
| CN204981537U (en) * | 2015-09-18 | 2016-01-20 | 成都乐维斯科技有限公司 | System for it recycles to adopt anaerobic fermentation technique to carry out resource |
-
2015
- 2015-09-18 CN CN201510596941.0A patent/CN105110595A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103402929A (en) * | 2011-02-11 | 2013-11-20 | 韩国投透化工有限公司 | Eco-friendly system for generating a bio gas in high concentration and treating fermentation remnants using livestock excretions |
| CN102351395A (en) * | 2011-06-23 | 2012-02-15 | 杭州职业技术学院 | System and method for treating pig manure and cultivation sewage |
| CN102992559A (en) * | 2012-12-07 | 2013-03-27 | 中船重工环境工程有限公司 | Method for comprehensively utilizing anaerobic digestion and carbonization of municipal sludge |
| WO2015019382A1 (en) * | 2013-08-05 | 2015-02-12 | 国立大学法人 東京工業大学 | Two-stage methane gas generating system having front end aggregation step |
| CN204981537U (en) * | 2015-09-18 | 2016-01-20 | 成都乐维斯科技有限公司 | System for it recycles to adopt anaerobic fermentation technique to carry out resource |
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Application publication date: 20151202 |
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