CN103981220A - Organic waste treatment method in hydrogen alkane fermentation coupling microalgae breeding - Google Patents
Organic waste treatment method in hydrogen alkane fermentation coupling microalgae breeding Download PDFInfo
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Abstract
The invention discloses an organic waste treatment method in hydrogen alkane fermentation coupling microalgae breeding, and belongs to the technical fields of environmental protection and new energy. The method comprises the following steps: (1) preparing hydrogen through anaerobic fermentation; (2) preparing methane through anaerobic fermentation of residues; (3) applying hydrogen alkane generated to heat supply and power generation or to sale as vehicle fuel after being purified; (4) preprocessing fermentation liquor; (5) by taking the processed fermentation liquor as a matrix, breeding microalgae through carbon dioxide in hydrogen alkane generated by fermentation and carbon dioxide generated by burning the hydrogen alkane; and (6) mixing the collected microalgae with organic waste, and turning to the step of fermenting again. The method disclosed by the invention, through hydrogen and methane fermentation steps, improves waste treatment efficiency and energy recovery rate; the fermented liquid, through a nitrogen and phosphorus removal process of algae, functions as purifying; a sewage discharge indicator is achieved on an aspect of nitrogen and phosphorus, and the algae can serve as a raw material of anaerobic fermentation to continuously produce biological hydrogen alkane; and environment value added energy is realized.
Description
Technical field
The invention belongs to environmental protection and technical field of new energies, be specifically related to a kind of method that hydrogen alkane fermentation coupling both culturing microalgae is processed organic waste.
Background technology
China's organic waste output is large, take agricultural wastes as example, and China produces feces of livestock and poultry approximately 3,000,000,000 t every year, adds that urine and waste water approach 30,000,000,000 t, and only pig, ox, the large fowl and animal excrement of sheep three discharge COD approximately 6,900 ten thousand t every year.Utilizing fermentation of organic wastes process gas biofuel is the effective way of producing clean energy, is also conducive to ecological construction and environment protection, and easily realizes industrial applications.Fermentative Production gas bioenergy is mainly by the methanogenic means of biogas fermentation at present.But the biogas fermentation cycle is long and natural pond liquid generation is larger, fermentation efficiency is low has become with natural pond liquid aftertreatment problem the Main Bottleneck that restriction biogas industry develops.Current laboratory and pilot scale research show: than traditional biogas fermentation; hydrogen alkane two-step approach anaerobically fermenting has the following advantages: than biogas fermentation hydrogen alkane fermentation efficiency, get a promotion; so fermentation period shortens greatly, be more suitable for large-scale production, energy recovery rate is higher simultaneously.The mixed biologic combustion gas of the biological methane obtaining from biomass resource by biological process and biological hydrogen, belongs to reproducible non-fossil energy.Hydrogen alkane combines that combustion of hydrogen speed is fast, inflammability limit is wide, the feature of the renewable permanent energy and methane volume calorific value is high, reserves enrich, discharge the advantages such as low.Biological hydrogen alkane mainly contains following advantage as a kind of novel biological flue gas: reduced the discharge of the pollutents such as greenhouse gases and oxynitride; Due to adding of hydrogen, improved the hydrogen-carbon ratio ratio of fuel, both from fuel itself, reduced carbonic acid gas generation, can further reduce because of the raising of combustion thermal efficiency the discharge of greenhouse gases again.Methane can improve the volume calorific value of hydrogen alkane; The volume energy density of hydrogen is lower, adds suitable hydrogen in methane, than pure hydrogen, has higher volumetric heat; Theoretically, along with hydrogen volumetric ratio in hydrogen alkane gas mixture increases, the low heat value of fuel reduces; But add the volume calorific value that has improved air-propellant combination after hydrogen, make actual calorific value slightly higher than theoretical value.Efficiency of heat cycle improves; The combustionvelocity of hydrogen is very high, is about 8 times of methane, mixes the combustionvelocity that hydrogen can improve gas mixture in methane, can improve thermo-efficiency.Biological hydrogen alkane has great importance in following development, and hydrogen and methane coproduction are the energy substitution technique of at present tool potentiality.
In fermented liquid, contain a large amount of nutritive substances, mainly contain inorganic salts (as soluble substances such as sylvite, ammonium salt, phosphoric acid salt), also have the micronutrient elements such as the nutritive elements such as abundant phosphorus, nitrogen, potassium and copper, calcium, iron, manganese, zinc, also have abundant vitamin B group, amino acid, various lytic enzyme, certain plants hormone and disease and pest is had to the inhibiting factor or material.If it is not recycled, directly draining into water body nearby will produce serious body eutrophication phenomenon.Carry out large quantity research utilizing algae to process aspect sanitary sewage and various trade effluent both at home and abroad, and obtained prominent achievement.Process and compare with traditional natural pond liquid, utilize algae to process the fermented liquid liquid after two stage Anaerobic fermentations, there is following advantage: the one, make full use of sun power, when removing eutrophication element, absorb stabilizing carbon dioxide, so this project can obtain the geseous fuel of high added value in without extra input external carbon source.The 2nd, micro algae growth speed is fast, and growth cycle is short, high to the purification rate of natural pond liquid.The 3rd, micro-algal rim border is adaptable, and biological yield is high, is grown in water and combines with sewage disposal, does not take agricultural land.
Chinese patent CN102161550A discloses waste water of livestock poultry for the production of fodder additives and has been cleaned into the method for middle water, utilize the natural pond liquid process aerobic treatment after waste water of livestock poultry biogas fermentation, entered ultrafiltration membrance filter, and after sterilization neutralization, carried out both culturing microalgae production fodder additives and remove nitrogen phosphorus in the liquid of natural pond simultaneously.
Chinese patent CN1970776A discloses comprehensive fermentation method for alga marsh gas and product, utilizes to take the algae processing condition fermentation applicable as raw material regulates and produce biogas.
Chinese patent CN101549932A discloses the production method of organic sewage waste residue treatment, microalgae culturing and oil refining, comprises the following steps, and anaerobic treatment organic sewage waste residue, aerobic treatment natural pond liquid, is made into after nutrient solution for supporting algae, with oil-containing micro-algae, refines oil.
From existing technology and technique, there is following problem by biogas fermentation in routine: energy recovery rate is low, and organic pollutant removal rate is low, and directly discharge pollutes the environment.Treatment time is long, therefore need to manufacture huge reactor, increases cost.In fermented liquid, nitrogen phosphorus is not reclaimed fully, is discharged into the problem that can bring eutrophication in environment.And micro-algae exists the problem of security as animal feedstuff additive.
Summary of the invention
The object of the invention is in conjunction with anaerobism hydrogen alkane fermentation technique and both culturing microalgae technology, provide a kind of hydrogen alkane fermentation coupling both culturing microalgae to process the method for organic waste.
Technical scheme of the present invention is as follows:
A method for the processing organic waste of hydrogen alkane fermentation coupling both culturing microalgae, comprises the following steps:
(1) hydrogen fermentation: enter equalizing tank after raw material is removed to mechanical impurity, desilting processing, after regulating initial pH and water content, enter hydrogen fermentation reactor, acidication is small organic molecule by fermentation, and fermentation gas product is mainly hydrogen and carbonic acid gas;
(2) resistates methane fermentation: enter product methane fermentation reactor after the fermented liquid of discharging after hydrogen fermentation is regulated to pH value, by methanogen, small organic molecule is converted into methane and carbon dioxide;
(3) produce the pre-treatment of methane fermentation liquid: by the fermented liquid after above-mentioned fermentation after precipitation residue as fertilizer, liquid portion carries out pre-treatment by aerobic treatment, physical adsorption or electrochemistry, thereby the COD in reduction fermented liquid, by the mineralized nitrogen in fermented liquid, be easily by the ammonium salt that micro algae growth absorbed simultaneously, nitrate and nitrite;
(4) the hydrogen alkane producing is sold for onboard fuel for heat supply electrogenesis or after purifying; The carbonic acid gas that wherein heat supply electrogenesis device hydrogen combusted alkane produces enters micro algae culturing device so that carbon source to be provided; Or by micro algae culturing device, remove carbonic acid gas contained in dehydrogenation alkane and carry out preliminary purification, after then further purifying, for onboard fuel, sell;
(5) both culturing microalgae: pretreated fermented liquid, after overregulating pH, and is added and inoculates micro-algae after necessary trace element in fermented liquid and enter micro algae culturing device, utilize nitrogen phosphorus in fermented liquid to produce micro-algae and play the effect purifying water simultaneously;
(6) micro-algae reenters fermentation step with mixing after collecting: algae liquid enters flocculation sedimentation tank, and after flocculation sediment, supernatant liquor is collected in pond, part qualified discharge, and part is used for systemic circulation water; Algae liquid one step after flocculation is concentrated, and the algae liquid after concentrating and organic waste enter hydrogen fermentation reactor and carry out combined ferment.
Described organic waste is industrial or agricultural organic waste, domestic waste or lake wawter bloom.
The mud of the hydrogen reaction device inoculation in step (1) is active sludge or digested sludge, and seed sludge need carry out hot pre-treatment, acid treatment, alkaline purification, supersound process.The pretreated treatment condition of heat are 90-100 ℃, process 0.5-2h; Described acid-treated treatment condition, for regulating pH to 2-4, pull back to 5-7 after processing 24h; The treatment condition of described alkaline purification, for regulating pH to 9-10, pull back to 5-7 after processing 24h; The condition of described supersound process is 100KHz, 10-30min.
Described hydrogen fermentation reactor is middle temperature or thermophilic fermentation, and reaction process pH should be controlled in 5-7, and water content is 80-98%; The temperature of described mesophilic digestion is 30-37 ℃, and the temperature of described thermophilic fermentation is 50-55 ℃; Described methane fermentation reactor is middle temperature or thermophilic fermentation, and pH should be controlled between 6-8; The temperature of described mesophilic digestion is 30-37 ℃; The temperature of described thermophilic fermentation is 50-55 ℃.
Described hydrogen fermentation reactor or methane fermentation reactor are fully mixing reactor, upflowing sludge reaction bed, packed bed reactor, CGSB, anaerobic composite bed reactor, internal-circulation anaerobic reactor, outer circulation anaerobic reactor, flow lifting type anaerobism solid reactor, anaerobic baffled reactor, upflow anaerobic sludge blanket process-filtering layer reactor, anaerobic biofilter, anaerobic composite bed reactor, anaerobic sequencing batch reactor, anaerobic expanded bed bioreactor, anaerobic fluidized bed reactor or anaerobe sabot.
Aerobic treatment described in step (3) reactor used is aerobic biofilter, active sludge aeration tank, biological contact oxidation pond, oxidation ditch, oxidation pond, cyclic activated sludge system aerobic biochemical pool, sequencing batch active sludge, easy-to-keep biological fluidized-bed or drips filter bed or aerobe rotating disk.
Described micro algae culturing device is the open pool, Flat photobioreactor, tubular type bioreactor or column airlift reactor.
Described micro-algae is freshwater microalgae, and should filter out in conjunction with local natural condition micro-algae kind of fast growth strong stress resistance.
In the hydrogen alkane that in microalga cultivation process, use is produced, carbonic acid gas is as carbon source, and carbon source insufficient section supplements with carbonic acid gas in atmosphere.
In micro-algae collection process, flocculation agent is used microbial flocculant or natural macromolecule flocculating agent to avoid the impact on organism of fermentation.
Described power generation and heat supply device adopts gas fired-boiler and the array mode of steam turbine generating set or the array mode of gas turbine power generation group and waste heat boiler and steam turbine generating set.
Method of the present invention, in conjunction with hydrogen alkane fermentation technique, easy-to-keep biological treatment technology and both culturing microalgae technology, has proposed a set of recycle system that realizes environmental treatment and Energy production doulbe-sides' victory: by the fermentation of hydrogen alkane, improved fermentation efficiency and produced biological hydrogen alkane simultaneously; Meanwhile, utilize by product CO2 and fermented liquid to support algae, realize comprehensive clean utilization.Micro-algae has higher photosynthetic efficiency, can remove in the liquid of natural pond the nutritive substances such as institute is nitrogenous, phosphorus, aspect nitrogen phosphorus, reaching sewage discharge index, via the biomass chemical energy that is self by light energy conversion after photosynthesis, the raw material that the biomass of generation can be used as again anaerobically fermenting continues to produce biological hydrogen alkane simultaneously.Can effectively utilize organic waste on the one hand, reduce environmental pollution; The coproduction of hydrogen alkane can improve the transformation efficiency of the energy greatly on the other hand, the mixed gas of output calorific value and environmental effect doulbe-sides' victory.Thereby form an efficient circulation with closed ecology chain characteristic and utilize system.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of the inventive method.
Fig. 2 is carbon flow graph in the inventive method.
Embodiment
Below in conjunction with accompanying drawing and specific examples, the present invention will be further described.
Embodiment 1
Method of the present invention is as follows:
(1) hydrogen fermentation: enter equalizing tank after raw material is removed to mechanical impurity, desilting processing, after regulating initial pH and water content, enter hydrogen fermentation reactor, acidication is small organic molecule by fermentation, and fermentation gas product is mainly hydrogen and carbonic acid gas;
(2) resistates methane fermentation: enter product methane fermentation reactor after the fermented liquid of discharging after hydrogen fermentation is regulated to pH value, by methanogen, small organic molecule is converted into methane and carbon dioxide;
(3) produce the pre-treatment of methane fermentation liquid: by the fermented liquid after above-mentioned fermentation after precipitation residue as fertilizer, liquid portion carries out pre-treatment by aerobic treatment, physical adsorption or electrochemistry, thereby the COD in reduction fermented liquid, by the mineralized nitrogen in fermented liquid, be easily by the ammonium salt that micro algae growth absorbed simultaneously, nitrate and nitrite;
(4) the hydrogen alkane producing is sold for onboard fuel for heat supply electrogenesis or after purifying; The carbonic acid gas that wherein heat supply electrogenesis device hydrogen combusted alkane produces enters micro algae culturing device so that carbon source to be provided; Or by micro algae culturing device, remove carbonic acid gas contained in dehydrogenation alkane and carry out preliminary purification, after then further purifying, for onboard fuel, sell;
(5) both culturing microalgae: pretreated fermented liquid, after overregulating pH, and is added and inoculates micro-algae after necessary trace element in fermented liquid and enter micro algae culturing device, utilize nitrogen phosphorus in fermented liquid to produce micro-algae and play the effect purifying water simultaneously;
(6) micro-algae reenters fermentation step with mixing after collecting: algae liquid enters flocculation sedimentation tank, and after flocculation sediment, supernatant liquor is collected in pond, part qualified discharge, and part is used for systemic circulation water; Algae liquid one step after flocculation is concentrated, and the algae liquid after concentrating and organic waste enter hydrogen fermentation reactor and carry out combined ferment.
Embodiment 1
According to schema, as shown in Figure 1 method of the present invention is further elaborated and is illustrated.
Take the plant of 1200 pig breeding stocks is example, the dirty total amount 7.2t of daily output excrement, the dry pig manure of 1.3t every day.Take to take the treatment process that " pre-treatment+hydrogen alkane fermentation+both culturing microalgae " is core.Daily output tolerance 600m
3, institute's aerogenesis body for pig farm personal and boiler use and purify after as onboard fuel, sell.Comprise the following steps:
A. collect pig manure urine and cleaning water and fermented liquid and support the algae liquid that algae produces, first through grid and settling pit, process.Raw material enters between pre-treatment and carries out hydro-thermal liquefaction pre-treatment, and treatment temp is selected 200 ℃, and treatment time 10min guarantees that hydrogen methane series system water inlet total solids level is less than 2%.
B. produce hydrogen reactor seed sludge and use anaerobically digested sludge, process half an hour for 100 ℃.Produce hydrogen reactor and adopt packed bed reactor (PBR), input concentration TS≤2%, hydraulic detention time is 12h, reactor aspect ratio: 6:1, diameter is 2.05m; Be highly 12.3m, reactor pH is controlled between 5-6,35 ℃ of fermentations of temperature in employing, raw material enters to produce and carries out acidification hydrolization reaction decomposes after hydrogen reactor and become the small-molecule substances such as organic acid and alcohols, the hydrogen and the carbonic acid gas that produce are collected by gas-holder, reactor parameter is in Table 1, day hydrogen producing 33m
3.
C. methane-producing reactor adopts upflowing sludge reaction bed (UASB) reactor, hydraulic detention time is 12h, reactor aspect ratio: 6:1, diameter is 2.05m, is highly 12.3m, and reactor pH is controlled between 6-8, reactor parameter is in Table 1,35 ℃ of fermentations of temperature in employing, methanogen is decomposed generation methane and carbon dioxide by small molecular organic acid and alcohols, and reactor parameter is shown in Fig. 2.Fermentation ejecta is after solid-liquid separation, and residue is collected becomes fertilizer by compost, and fermented liquid enters follow-up both culturing microalgae.The hydrogen alkane part of collecting is for combustion power generation and boiler heating, and residue is sold with onboard fuel after mixing.
D. the liquid portion of fermented liquid after solid-liquid separation enters active sludge aeration tank and carries out aerobic treatment, reduces the organic concentration in fermented liquid, simultaneously by mineralized nitrogen for easily by the ammonium salt that micro algae growth absorbed, nitrate and hydrochloride.
E. after processing, liquid enters and reconciles pond, and fermented liquid regulates between pH to 6-7, and adds the trace elements such as iron, magnesium.Algae kind is selected chlorella, after inoculation, entering many row's vertical plate type bioreactors cultivates, pass into the gas of fermentation generation and the carbonic acid gas of power compartment and the generation of boiler house gas fuel combustion, the carbonic acid gas that utilizes its middle and high concentration provides carbon source for chlorella growth, hydrogen and methane in simultaneously can purifying gas fuel.Chlorella culture cycle is 4d, the high 2m of the single riser of board-like bioreactor, wide 30m, distance between plates 1m; Establish altogether 29 risers, overall length 43.5m, total area 1305m
2, nitrogen removal rate 80%, the speed of growth is assumed to 20g/m
2d, supports algae 307kg with fermented liquid.
F. algae liquid enters flocculation sedimentation tank, and after flocculation sediment, supernatant liquor is collected and to be become middle water and can be used as reuse.Algae liquid after flocculation is further concentrated.Algae liquid after concentrated with enter fermentation reactor and carry out combined ferment.Micro-algae is slowed down Greenhouse effect for carbonic acid gas in fixing atmosphere and plays an important role, see the carbon cycle shown in Fig. 2, by both culturing microalgae can every day the fixing carbon in the atmosphere of 18.15kg, this part carbon enters hydrogen alkane fermentation step with the form of micro-algae, and the input of micro-algae makes a day hydrogen output can increase 8m more
3, methane production can increase 107m more
3thereby, realized the environment increment energy.
Table 1 is the parameter of PBR and UASB
Claims (10)
1. hydrogen alkane fermentation coupling both culturing microalgae is processed a method for organic waste, it is characterized in that, comprises the following steps:
(1) hydrogen fermentation: enter equalizing tank after raw material is removed to mechanical impurity, desilting processing, after regulating initial pH and water content, enter hydrogen fermentation reactor, acidication is small organic molecule by fermentation, and fermentation gas product is mainly hydrogen and carbonic acid gas;
(2) resistates methane fermentation: enter product methane fermentation reactor after the fermented liquid of discharging after hydrogen fermentation is regulated to pH value, by methanogen, small organic molecule is converted into methane and carbon dioxide;
(3) produce the pre-treatment of methane fermentation liquid: by the fermented liquid after above-mentioned fermentation after precipitation residue as fertilizer, liquid portion carries out pre-treatment by aerobic treatment, physical adsorption or electrochemistry, thereby the COD in reduction fermented liquid, simultaneously by the mineralized nitrogen in fermented liquid for easily by ammonium salt, nitrate and nitrite that micro algae growth absorbed;
(4) the hydrogen alkane producing is sold for onboard fuel for heat supply electrogenesis or after purifying; The carbonic acid gas that wherein heat supply electrogenesis device hydrogen combusted alkane produces enters micro algae culturing device so that carbon source to be provided; Or by micro algae culturing device, remove carbonic acid gas contained in dehydrogenation alkane and carry out preliminary purification, after then further purifying, for onboard fuel, sell;
(5) both culturing microalgae: pretreated fermented liquid, through overregulating pH, and is added and inoculates micro-algae after necessary trace element in fermented liquid and enter micro algae culturing device, utilize nitrogen phosphorus in fermented liquid to produce micro-algae and play the effect purifying water simultaneously;
(6) micro-algae reenters fermentation step with mixing after collecting: algae liquid enters flocculation sedimentation tank, and after flocculation sediment, supernatant liquor is collected in pond, part qualified discharge, and part is used for systemic circulation water; Algae liquid one step after flocculation is concentrated, and the algae liquid after concentrating and organic waste enter hydrogen fermentation reactor and carry out combined ferment.
2. method according to claim 1, is characterized in that, described organic waste is industrial or agricultural organic waste, domestic waste or lake wawter bloom.
3. method according to claim 1, is characterized in that, the mud of the hydrogen reaction device inoculation in step (1) is active sludge or digested sludge, and seed sludge need carry out hot pre-treatment, acid treatment, alkaline purification or supersound process; The pretreated treatment condition of heat are 90-100 ℃, process 0.5-2h; Described acid-treated treatment condition, for regulating pH to 2-4, pull back to 5-7 after processing 24h; The treatment condition of described alkaline purification, for regulating pH to 9-10, pull back to 5-7 after processing 24h; The condition of described supersound process is 100KHz, 10-30min.
4. method according to claim 1, is characterized in that, described hydrogen fermentation reactor is middle temperature or thermophilic fermentation, and reaction process pH should be controlled in 5-7, and water content is 80-98%; The temperature of described mesophilic digestion is 30-37 ℃, and the temperature of described thermophilic fermentation is 50-55 ℃; Described methane fermentation reactor is middle temperature or thermophilic fermentation, and pH should be controlled between 6-8; The temperature of described mesophilic digestion is 30-37 ℃; The temperature of described thermophilic fermentation is 50-55 ℃.
5. method according to claim 1, it is characterized in that, described hydrogen fermentation reactor or methane fermentation reactor are fully mixing reactor, upflowing sludge reaction bed, packed bed reactor, CGSB, anaerobic composite bed reactor, internal-circulation anaerobic reactor, outer circulation anaerobic reactor, flow lifting type anaerobism solid reactor, anaerobic baffled reactor, upflow anaerobic sludge blanket process-filtering layer reactor, anaerobic biofilter, anaerobic composite bed reactor, anaerobic sequencing batch reactor, anaerobic expanded bed bioreactor, anaerobic fluidized bed reactor or anaerobe sabot.
6. method according to claim 1, it is characterized in that, the reactor used of the aerobic treatment described in step (3) is aerobic biofilter, active sludge aeration tank, biological contact oxidation pond, oxidation ditch, oxidation pond, cyclic activated sludge system aerobic biochemical pool, sequencing batch active sludge, easy-to-keep biological fluidized-bed or drips filter bed or aerobe rotating disk.
7. method according to claim 1, is characterized in that, described micro algae culturing device is the open pool, Flat photobioreactor, tubular type bioreactor or column airlift reactor.
8. method according to claim 1, is characterized in that, described micro-algae is freshwater microalgae, and should filter out in conjunction with local natural condition micro-algae kind of fast growth strong stress resistance.
9. method according to claim 1, is characterized in that, in the hydrogen alkane that in microalga cultivation process, use is produced, carbonic acid gas is as carbon source, and carbon source insufficient section supplements with carbonic acid gas in atmosphere.
10. method according to claim 1, is characterized in that, in micro-algae collection process, flocculation agent is used microbial flocculant or natural macromolecule flocculating agent to avoid the impact on organism of fermentation.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104250058A (en) * | 2014-09-16 | 2014-12-31 | 中国农业大学 | Comprehensive treatment method of wastewater generated in production of water-soluble fertilizer from bird guano fermentation liquor |
| CN105175045A (en) * | 2015-09-02 | 2015-12-23 | 东北农业大学 | Microalgae culture and wood fiber waste fermentation coupling system |
| CN105624026A (en) * | 2014-12-01 | 2016-06-01 | 中粮集团有限公司 | Low-carbon zero-emission circulating hydrogen preparing device |
| CN108328894A (en) * | 2018-03-22 | 2018-07-27 | 湖南大学 | A method of promoting residual sludge reduction |
| CN113045133A (en) * | 2021-03-24 | 2021-06-29 | 重庆大学 | System and method for treating livestock and poultry breeding wastewater by anaerobic fermentation coupled with microalgae organisms |
| CN113800722A (en) * | 2021-10-09 | 2021-12-17 | 沈阳航空航天大学 | Method for co-producing methane-bio-oil by coupling domestic sewage anaerobic digestion with microalgae culture |
| CN114058479A (en) * | 2021-11-19 | 2022-02-18 | 河南农业大学 | Carbon-negative-emission bio-HYTHANE co-production fermentation system and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549932A (en) * | 2009-05-14 | 2009-10-07 | 蔡志武 | Integrated production method of organic sewage/waste residue treatment, microalgae culturing and oil refining |
| CN102864073A (en) * | 2012-09-21 | 2013-01-09 | 中国环境科学研究院 | Device for dry and wet co-production of hydrogen and methane by using kitchen garbage and using method thereof |
-
2014
- 2014-05-26 CN CN201410226015.XA patent/CN103981220B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549932A (en) * | 2009-05-14 | 2009-10-07 | 蔡志武 | Integrated production method of organic sewage/waste residue treatment, microalgae culturing and oil refining |
| CN102864073A (en) * | 2012-09-21 | 2013-01-09 | 中国环境科学研究院 | Device for dry and wet co-production of hydrogen and methane by using kitchen garbage and using method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104250058A (en) * | 2014-09-16 | 2014-12-31 | 中国农业大学 | Comprehensive treatment method of wastewater generated in production of water-soluble fertilizer from bird guano fermentation liquor |
| CN104250058B (en) * | 2014-09-16 | 2016-01-20 | 中国农业大学 | The comprehensive treatment method for wastewater of fowl droppings fermenting liquid production Water soluble fertilizer |
| CN105624026A (en) * | 2014-12-01 | 2016-06-01 | 中粮集团有限公司 | Low-carbon zero-emission circulating hydrogen preparing device |
| CN105175045A (en) * | 2015-09-02 | 2015-12-23 | 东北农业大学 | Microalgae culture and wood fiber waste fermentation coupling system |
| CN108328894A (en) * | 2018-03-22 | 2018-07-27 | 湖南大学 | A method of promoting residual sludge reduction |
| CN113045133A (en) * | 2021-03-24 | 2021-06-29 | 重庆大学 | System and method for treating livestock and poultry breeding wastewater by anaerobic fermentation coupled with microalgae organisms |
| CN113800722A (en) * | 2021-10-09 | 2021-12-17 | 沈阳航空航天大学 | Method for co-producing methane-bio-oil by coupling domestic sewage anaerobic digestion with microalgae culture |
| CN114058479A (en) * | 2021-11-19 | 2022-02-18 | 河南农业大学 | Carbon-negative-emission bio-HYTHANE co-production fermentation system and method |
| CN114058479B (en) * | 2021-11-19 | 2024-05-28 | 河南农业大学 | Carbon-negative-emission biological hydrogen alkane co-production fermentation system and method |
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