CN110467326A - Activated sludge produces electricl energy and operating technology - Google Patents
Activated sludge produces electricl energy and operating technology Download PDFInfo
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- CN110467326A CN110467326A CN201810497809.8A CN201810497809A CN110467326A CN 110467326 A CN110467326 A CN 110467326A CN 201810497809 A CN201810497809 A CN 201810497809A CN 110467326 A CN110467326 A CN 110467326A
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- 239000010802 sludge Substances 0.000 title abstract description 55
- 238000005516 engineering process Methods 0.000 title description 5
- 238000000855 fermentation Methods 0.000 claims abstract description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 4
- 241001330002 Bambuseae Species 0.000 claims abstract description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 4
- 239000011425 bamboo Substances 0.000 claims abstract description 4
- 235000021419 vinegar Nutrition 0.000 claims abstract description 4
- 239000000052 vinegar Substances 0.000 claims abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 58
- 238000004519 manufacturing process Methods 0.000 abstract description 23
- 230000029087 digestion Effects 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 13
- 239000007788 liquid Substances 0.000 abstract description 8
- 239000010865 sewage Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 244000000010 microbial pathogen Species 0.000 abstract description 3
- 244000052769 pathogen Species 0.000 abstract description 3
- 230000001717 pathogenic effect Effects 0.000 abstract description 3
- 241001465754 Metazoa Species 0.000 abstract description 2
- 210000003608 fece Anatomy 0.000 abstract description 2
- 235000013305 food Nutrition 0.000 abstract description 2
- 235000013372 meat Nutrition 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 49
- 239000002028 Biomass Substances 0.000 description 6
- 239000002737 fuel gas Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000004151 fermentation Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000001079 digestive effect Effects 0.000 description 1
- 210000002249 digestive system Anatomy 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molecular Biology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
Activated sludge is applied to the raw material that fire damp gas generates, and adding suitable production gas synergist bamboo vinegar gas production can be improved 30%~40%.Adjust the gas production that C/N ratio is remarkably improved fire damp gas.The adjustable C/N ratio of methane backeria nutrition-allocated proportion, digestion vessel pH value generate the optimum value of methane gas to digestion, can be regulated and controled with alkaline matter.Due to coming from human and animal excreta and food, meat processing waste water in sludge, pathogenic microorganisms in sewage disposal process there are about 90% or more is adsorbed in sludge by concentration, the pollution of pathogen is prevented for safe disposal sludge, it is necessary to effective ways be taken to kill using among sludge.A certain amount of water is added in activated sludge and synergist, forms feed concentration, puts into anaerobic fermentation container (underground pond, fermentor, case).In preparation liquid concentration, feed concentration is suitable for obtaining more stable gas production to fully and rationally use fermented feed liquid.Different feed liquid concentration gas production is compared, selects the feed concentration of optimum efficiency, and observe different time sections gas production Contrast on effect.
Description
One, technical field:
It is produced electricl energy the present invention relates to a kind of activated sludge and operating technology, belongs to biomass energy source domain.
Two, technical background:
The usual abbreviation sludge of activated sludge, based on sanitary sewage, waste industrial water from light industry containing part enters sewage disposal system,
Generate sludge.Contain organic substance in sludge, moisture is usually 70% or so.
Activated sludge passes through anaerobe technical treatment, generates biogas, in biogas containing 60% or more fuel gas at
Point, this part fuel gas is referred to as methane gas (CH4)。
It is that organic substance is finally decomposed under oxygen-free environment by anaerobic bacteria flora in sludge that activated sludge, which generates fire damp gas,
At the process of methane gas and carbon dioxide etc., this is the biochemical processing of current activated sludge.Anaerobic sludge digestion is one
Extremely complex process, is generally divided into three phases.
Our experimental study, activated sludge are applied to the raw material that fire damp gas generates, and add suitable production gas synergy
Agent bamboo vinegar gas production can be improved 30%~40%.Adjust the gas production that C/N ratio is remarkably improved fire damp gas.Methane backeria battalion
The adjustable C/N ratio of proportion is supported, digestion vessel pH value generates the optimum value of methane gas to digestion, can be adjusted with alkaline matter
Control.
For recycling sludge using the protection of China's urban and rural environment and construction is adapted to, developing newly can direction.
The mixed gas that town and country natural gas is made of a variety of flammable and non-combustible pure gas.Biomass gas is usually
Organic substance generates biogas by microbial action under air themperature, humidity, pH value and isolation air conditions, can in biogas
Firing ingredient is methane gas (CH4), methane gas calorific value 22Mj/m3, fuel used to generate electricity, generated energy about 4-5KW can be made.Methane gas passes through depth
Cold process (equipment), pressurization (equipment), desulfurization hair (equipment) can be converted to liquefied gas, have extensive fuel market prospect.
As city dweller's population increases, sanitary sewage discharge amount is continuously increased, the construction of sanitary sewage disposal purification plant
Pattern is constantly expanding.It is reported that the sanitary sewage that China generates every year is up to more than 100,000,000 ten thousand tons.Two countries of Great Britain and America were in the past ten
Nian Zhong, sewage every two years increase 5%-10%.
Contain pathogenic microorganisms and parasitic ovum in activated sludge, it is necessary to take effective ways safe handling, prevent cause of disease
Body infects.
Treatment of Sludge substantially has: 1, filling.Underground water and river pollution are caused, has been prohibited.2, ocean is put into.Pollution
Ocean has been prohibited.3, it burns.It is at high cost, and foul smell and ash content influence surrounding enviroment, have been prohibited.4, comprehensive resource
It utilizes.Processing utilization is carried out to sludge by certain high technology content method.
Recycling sludge comprehensive utilization includes: 1, ecological agriculture organic fertilizer utilizes.2, civilian burning charcoal and by deep plus
Work and technical treatment obtain the utilization of active carbon.3, anaerobe fermentation obtains fire damp gas and biogas residue and biogas liquid configuration ecology
The organic solid-liquid body fertilizer of agricultural.
In sludge due to come from human and animal excreta and food, meat processing waste water, in sewage disposal process there are about 90% with
On pathogenic microorganisms be adsorbed in sludge by concentration, prevent the pollution of pathogen for safe disposal sludge, it is necessary to take effectively
Method is killed using among sludge.Method for sludge treatment see the table below the effect of sludge is stable:
Effect of the various method for sludge treatment to sludge is stable
| Processing method | Kill pathogen effect | Reduce putrefaction | Reduce smell |
| Anaerobic digestion | It is fair | It is good | It is good |
| Aerobic sigestion | It is fair | It is good | It is good |
| Lime treatment | It is good | It is fair | It is good |
| Ionising radiation | Well | It is bad | It is fair |
| Heat (95-200 DEG C) | Well | It is good | It is good |
| Compost (60 DEG C) | It is good | It is good | It is good |
| Digested sludge long term storage | It is good |
Fire damp gas converts electric energy
Activated sludge is utilized to be tested in fire damp gas conversion electric energy.By methane-generating pit (tank, case) dry gas-holder and external
User or internal combustion engine type generating set composition, are shown in that Fig. 1 shows
Fire damp gas belongs to biogas energy (biomass energy), for marsh gas power generation or marsh gas purifying and removal dioxy
After changing carbon, gas power is provided for vehicle or enters town and country gas distributing system.
It influences sludge and generates fire damp gas governing factor:
Sludge is that the microbial technique processing by sludge anaerobic fermentation digestion comes in fact for fire damp gas production gas raw material
Existing, for anaerobic sludge digestion after anaerobism completely cuts off air under certain temperature, damp condition, microorganism dislikes gas to produce acid generation biogas
Process.For methane gas fermentation stage by the control of sludge anaerobic digestion process, digestion process, which operates, was metabolized generation methane backeria
Journey has an impact.Anaerobic sludge digestion is influenced by certain conditions and environment chemical factors.Wherein sludge generates fire damp
The dosing rate of gas is one of the influence factor for generating methane gas gas production.The sludge dosing rate of digestion refers to daily investment digester
Fresh sludge volume and digestion volume ratio.When mesophilic digestion, fresh sludge dosing rate is often best in 6%-8% effect.
Design fresh sludge dosing rate is usually matched in 5%-12%.It is required that gas production is high, lower limit value 5% is generallyd use, is examined simultaneously
Consider digestion reservoir volume, the big gas production of volume is high.The nutrition of digester anaerobic bacteria is one of influence factor to dosing sludge.Nutrition is matched
The most importantly C/N ratio than in.C/N is excessively high, and nitrogen content is insufficient, and digestive juice buffer capacity reduces, and PH is easy decline, on the contrary
C/N is too low, nitrogenous excessively high, and PH may rise to 8.0 or more.Sludge mixing is also key factor to sludge digestion.Digestion
Alkali metal, sulfate, nitrate, surfactant etc. are all the factors having an impact to digestive system in pond.Realize that sludge produces
Methyl hydride combustion gas can also be carried out in underground methane-generating pit in the container tank or container case specially designed.
It is predicted that the year utilization of data, biomass energy and biogas accounts for the 1% of primary energy consumption, mentioned to the year two thousand twenty
Level of the height to 4%.And biogas is then the mostly important component part of biomass energy.Biogas, that is, biogas, it has naturally
Point of biogas and artificial bio-membrane's gas.This patent research is artificial bio-membrane's gas, the artificial technological achievement for researching and developing sludge biogas production.
Bioenergy can not only be made full use of by developing biogas fuel, and be conducive to environmental protection, and is become and given up as use, by
Rural development is to town and country.Whole nation user has more than 1,300 ten thousand, methane-generating pit at present, produces about 60 ten thousand stere of biogas per year, builds up large-scale poultry
Fowl farm and biogas project, industrial organic waste water biogas project 1400.It is introduced that being representative by agricultural crop straw of biogas
Bioenergy using total amount more than 2.5 hundred million tons standard coals, account for about the 50% of rural area resident living energy.Such as Guangxi District
Accumulative to build up domestic methane tank more than 270 ten thousand, rate into family ranks first in the whole country up to 30% or more.
Counted according to the whole nation, China's biomass power generation in 2010 up to 5,500,000 KW, biogas utilization amount up to 190 billion cubic meters,
National production and use of marsh gas user reaches 40,000,000 families within 2010, creates at large and medium-sized cultivation biogas project 4000.
It is the sludge in urban and rural environment that the art of this patent, which provides methane gas producing raw material, and the original of gas is produced to offer fire damp gas
Material has broader source, to provide bigger biogas energy.
Storage is fuel gas product from production and transmission & distribution to an important link in the entire production and supply chain of supply.Only
Fuel gas product is stored, the contradiction of gas source supply and user's gas inhomogeneities is just can solve, is likely to make transmission and distribution network
Gas supply point be reasonably distributed to improve pipe network Ferry Status, optimize its technical-economic index.
Three, summary of the invention
Core content of the present invention is in the elaboration of above-mentioned technical background, utilizes activated sludge anaerobe technical treatment production
Raw fire damp gas.Activated sludge adds synergist bamboo vinegar and improves methane gas gas production.Anaerobic fermentation material C/N ratio is adjusted, is reached
To raising gas production effect.
Activated sludge fermentation vat, case, tank produce electricl energy shown in Fig. 1.
Four, implement operating technology
Activated sludge and a certain amount of water of synergist addition, formation feed concentration, investment anaerobic fermentation container (underground pond,
Fermentor, case).In preparation liquid concentration, feed concentration be suitable for, with fully and rationally use fermented feed liquid obtain it is more stable
Gas production.Different feed liquid concentration gas production is compared, the feed concentration of optimum efficiency is selected, and observes different time sections gas production effect
Fruit comparison.
Obtain fire damp gas methane gas converting electrical energy as shown in Figure 1.
Claims (2)
1. synergist bamboo vinegar.
2. fermentor, case in anaerobic fermentation container.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810497809.8A CN110467326A (en) | 2018-05-12 | 2018-05-12 | Activated sludge produces electricl energy and operating technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810497809.8A CN110467326A (en) | 2018-05-12 | 2018-05-12 | Activated sludge produces electricl energy and operating technology |
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| Publication Number | Publication Date |
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| CN110467326A true CN110467326A (en) | 2019-11-19 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001354487A (en) * | 2000-06-07 | 2001-12-25 | Kankyo Shigen Engineering:Kk | Full-ripe organic fertilizer, method for manufacturing the same and apparatus for manufacturing the same |
| CN101016558A (en) * | 2007-01-22 | 2007-08-15 | 桂林工学院 | Method for promoting biogas fermentation at low temperature |
| CN104370427A (en) * | 2013-08-15 | 2015-02-25 | 林炳营 | Biogas methane gas production special-purpose activated sludge |
| CN106477841A (en) * | 2015-08-29 | 2017-03-08 | 林炳营 | Biomass liquefied petroleum gas and preparation method thereof |
| CN108862965A (en) * | 2017-05-11 | 2018-11-23 | 林炳营 | Activated sludge generates methane gas special combination tank and operating method |
-
2018
- 2018-05-12 CN CN201810497809.8A patent/CN110467326A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001354487A (en) * | 2000-06-07 | 2001-12-25 | Kankyo Shigen Engineering:Kk | Full-ripe organic fertilizer, method for manufacturing the same and apparatus for manufacturing the same |
| CN101016558A (en) * | 2007-01-22 | 2007-08-15 | 桂林工学院 | Method for promoting biogas fermentation at low temperature |
| CN104370427A (en) * | 2013-08-15 | 2015-02-25 | 林炳营 | Biogas methane gas production special-purpose activated sludge |
| CN106477841A (en) * | 2015-08-29 | 2017-03-08 | 林炳营 | Biomass liquefied petroleum gas and preparation method thereof |
| CN108862965A (en) * | 2017-05-11 | 2018-11-23 | 林炳营 | Activated sludge generates methane gas special combination tank and operating method |
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