CN103466811A - Method for utilizing methanogenesis anaerobic bacterial flora to treat paper-making waste water - Google Patents

Method for utilizing methanogenesis anaerobic bacterial flora to treat paper-making waste water Download PDF

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CN103466811A
CN103466811A CN2013104623632A CN201310462363A CN103466811A CN 103466811 A CN103466811 A CN 103466811A CN 2013104623632 A CN2013104623632 A CN 2013104623632A CN 201310462363 A CN201310462363 A CN 201310462363A CN 103466811 A CN103466811 A CN 103466811A
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methane
paper
paper waste
anaerobic
waste water
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杨春玉
许平
程彬
王伟
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Shandong University
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Abstract

The invention discloses a method for utilizing methanogenesis anaerobic bacterial flora to treat paper-making waste water. The method includes the steps that sediment at the bottom of a straw pulp paper-making waste water pool is added to methane enrichment media for enrichment and index detection to obtain the methanogenesis anaerobic bacterial flora suitable for treating the paper-making waste water; then, the paper-making waste water, the methanogenesis anaerobic bacterial flora and anaerobic sludge are mixed and added to an upflow anaerobic reactor (UASB), and therefore the paper-making waste paper is treated. The methanogenesis anaerobic bacterial flora can directly treat the paper-making waste paper, can reduce pH of the waste water, and can further utilize organic matter in the waste water to generate marsh gas. The method is used as a primary treatment method for treating the paper-making waste water and provides the beneficial foundation for follow-up and further treatment of the paper-making waste water, therefore, cost is reduced, the recovery rate is increased, secondary pollution is reduced, obvious economic benefits and social benefits are achieved in the paper-making waste water treatment aspect, and the great application prospect is possessed.

Description

A kind of method of producing methane anaerobic bacteria flora Processing Paper Wastewater of utilizing
Technical field
The present invention relates to a kind of method of utilizing alkaline anaerobic bacteria flora Processing Paper Wastewater, relate in particular to a kind of method of producing methane anaerobic bacteria flora Processing Paper Wastewater of utilizing.
Background technology
The anaerobic treatment of trade effluent because resource utilization degree is high, process thoroughly, avoid the advantages such as secondary pollution, processing cost be low to be subject to efforts at environmental protection person's generally attention.The trade effluents such as straw pulp, wood pulp papermaking black liquor that derive from wheat straw, wood raw material have pH and COD load (pH11～13, COD>100,000mg L -1) height, the characteristics that amount is large, colourity is high, fibre suspension is many, and have that part waste water water temperature is high, biodegradability is poor.
Processing Paper Wastewater mainly adopts aerobic and materialization technology both at home and abroad at present, but its system aeration rate and chemical feeding quantity are large, and the running cost of wastewater treatment is high, and enterprises in pulp and paper industry has been caused to very large environmental protection pressure.Anaerobic treatment mainly refers to the anaerobic technique that utilizes a certain amount of methane to produce, because the anaerobic waste water processing does not need aeration aerating, running expense is low, few and the stable in properties of the sludge quantity produced, be easy to process, and can produce bioenergy (biogas), therefore domestic papermaking enterprise adopts anaerobic technology processing chemical pulping spent process water technique to be the trend increased gradually, and utilizing during flora carrys out the application of Processing Paper Wastewater, traditional anaerobic digester, the techniques such as anaerobic biofilter reduce gradually, and the anaerobic reactor that possesses high loading processing power and high treatment efficiency is as inner circulation reactor, CGSB is just flourish and generally use.
The methane anaerobic bacteria flora has under anaerobic grows rapidly, produces the strong characteristics of methane ability.Yet, through retrieval, the method for utilizing product methane anaerobic bacteria flora to process the trade effluents such as alkaline straw pulp or wood pulp papermaking black liquor has no report.
Summary of the invention
For the problem in existing straw pulp or wood pulp papermaking wastewater treatment, the invention provides a kind of method of producing methane anaerobic bacteria flora Processing Paper Wastewater of utilizing.
The method of methane anaerobic bacteria flora Processing Paper Wastewater is produced in utilization of the present invention, and step is:
(1) get 5 ± 1g straw-pulp-papermaking wastewater settling adds respectively in the 100mL anaerobism bottle that the methane-rich substratum that 45 ± 5mL be take in the 100mL anaerobism bottle of the methane-rich substratum that sodium formiate is substrate, the sodium acetate of take is substrate is housed, with H in anaerobic culture box 2/ CO 2in 100mL anaerobism bottle for the methane-rich substratum of substrate, 30～35 ℃ of standing cultivations 10 ± 1 days; In anaerobic culture box, being 5% inoculum size afterwards by volume is transferred to the enrichment culture thing in each bottle in the above-mentioned anaerobism bottle containing the methane-rich substratum of corresponding substrate again, then 30～35 ℃ of standing cultivations 10 ± 1 days; Then transfer 2-4 time more in the above-described manner, the product methane anaerobic bacteria flora that to have obtained respectively take sodium formiate be substrate, the product methane anaerobic bacteria flora that the sodium acetate of take is substrate and with H 2/ CO 2product methane anaerobic bacteria flora for substrate;
In above-mentioned last switching culturing process, collect respectively with drainage three kinds of gases that produce the generation of methane anaerobic bacteria flora that obtain and also calculate the aerogenesis total amount of cultivating separately 10 ± 1 days, extract separately respectively the gas of 5 ± 1mL simultaneously, detect the purity of methane in each gas with gas chromatograph;
Wherein, above-mentioned methane-rich culture medium prescription is: contain 1.25 gram yeast powders, 0.5 gram peptone, 0.5 gram soya peptone, 0.5 gram Cys, 0.544 gram KH in 1 liter of distilled water 2pO 4, 1.3064 gram Na 2hPO 4, 1mL resazurin, pH7.5; The methane-rich substratum of above-mentioned preparation is distributed into after the anaerobism bottle by following operation: substitute gas, be filled with N 2after add sodium formiate that final concentration is 20mM to obtain take the methane-rich substratum that sodium formiate is substrate, or add sodium acetate that final concentration is 20mM to obtain take the methane-rich substratum that sodium acetate is substrate; Substitute gas, be filled with H 2: CO 2: N 2the gas mixture of=4:1:5, obtain with H 2/ CO 2methane-rich substratum for substrate; Under 115 ℃ of conditions, sterilizing is 30 minutes;
(2) get detect after gas production rate at most and methane purity reach the product methane anaerobic bacteria flora more than 70%, the inoculum size that the volume ratio of take is 5% is inoculated in the methane-rich substratum of its corresponding substrate, with the described condition enlarged culturing of step (1), the product methane anaerobic bacteria flora that to obtain being no less than 1 liter and OD value be 3～4, this flora is the product methane anaerobic bacteria flora for the treatment of paper waste;
(3) ratio that the methane of the product for the treatment of the paper waste anaerobic bacteria flora of step (2) being established is 1:2-3 with anaerobic sludge according to volume ratio is mixed, and is built into the structure flora for the treatment of paper waste;
(4) selecting alkaline straw pulp or wood pulp papermaking black liquor is the paper waste sample, then according to paper waste 1L, the flora of the structure for the treatment of paper waste 3～4L that step (3) makes, the proportional of water 5～6L is mixed it, be linked into again in upflow type anaerobic reactor (UASB), under 30～35 ℃ of conditions, react, after 72 hours, add the paper waste of 10 times of the dilute with waters of 500～1000mL every day to stream in UASB, the pH of interval sampling and measuring paper waste in treating processes, the COD index, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 5 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 3.3 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 2.5 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 2 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 1.6 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 1.4 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 1.25 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, continuous flow adds 5～18 months, the processing of realization to paper waste,
Wherein, above-mentioned straw-pulp-papermaking wastewater index is: pH=11～12, COD=11000～120,000mg L -1; Wood pulp papermaking waste water index is: pH=11～13, COD=106,000～157,000.
Above-mentioned utilization is produced in the method for methane anaerobic bacteria flora Processing Paper Wastewater: the described anaerobic sludge of step (3) is preferably taken from winery's purification tank for liquid waste pond bottom sediments mud.
Product for the treatment of paper waste methane anaerobic bacteria flora of the present invention enrichment in the bottom sediment of pond, straw-pulp-papermaking wastewater pond obtains.This flora is well-grown in the methanobacteria enrichment medium, and its optimum growth temperature is at 30 ℃, and optimal pH is 8.0, has the characteristics such as the high pH of tolerance, growth is fast, product methane ability is strong.With original anaerobic sludge, compare, the anaerobic sludge added after this flora has advantages of that for the paper waste anaerobic treatment processing power is strong, treatment effect good after domestication.
Product methane anaerobic bacteria flora of the present invention not only has the ability of direct Processing Paper Wastewater, and can make the pH of waste water reduce, and this flora can also utilize the biogas of the organism generation recoverable in waste water simultaneously.The inventive method is as a kind of Processing Paper Wastewater primary treatment method, to paper waste, follow-up and further processing provides favourable basis, reduce cost and increased the rate of recovery, and reduced secondary pollution, there is obvious economic benefit and social benefit aspect pulp and paper waste_water, very large application prospect is arranged.
The accompanying drawing explanation
Fig. 1 embodiment 2 builds flora processing straw-pulp-papermaking wastewater Continuous Flow and adds treatment effect.
Fig. 2 embodiment 3 builds flora processing wood pulp papermaking waste water Continuous Flow and adds treatment effect.
Fig. 3 embodiment 2 and embodiment 3 build flora Processing Paper Wastewater gas production rate situation.
Embodiment
Embodiment 1: the enrichment and the index determining that produce the methane anaerobic bacteria flora
Get 5 ± 1g straw-pulp-papermaking wastewater settling adds respectively in the 100mL anaerobism bottle that the methane-rich substratum that 45 ± 5mL be take in the 100mL anaerobism bottle of the methane-rich substratum that sodium formiate is substrate, the sodium acetate of take is substrate is housed, with H in anaerobic culture box 2/ CO 2in 100mL anaerobism bottle for the methane-rich substratum of substrate, 30～35 ℃ of standing cultivations 10 ± 1 days; In anaerobic culture box, being 5% inoculum size afterwards by volume is transferred to the enrichment culture thing in each bottle in the above-mentioned anaerobism bottle containing the methane-rich substratum of corresponding substrate again, then 30～35 ℃ of standing cultivations 10 ± 1 days; Then transfer 2-4 time more in the above-described manner, the product methane anaerobic bacteria flora that to have obtained respectively take sodium formiate be substrate, the product methane anaerobic bacteria flora that the sodium acetate of take is substrate and with H 2/ CO 2product methane anaerobic bacteria flora for substrate;
In above-mentioned last switching culturing process, collect respectively with drainage three kinds of gases that produce the generation of methane anaerobic bacteria flora that obtain and also calculate the aerogenesis total amount of cultivating separately 10 ± 1 days, extract separately respectively the gas of 5 ± 1mL simultaneously, detect the purity of methane in each gas with gas chromatograph;
Wherein, above-mentioned methane-rich culture medium prescription is: contain 1.25 gram yeast powders, 0.5 gram peptone, 0.5 gram soya peptone, 0.5 gram Cys, 0.544 gram KH in 1 liter of distilled water 2pO 4, 1.3064 gram Na 2hPO 4, 1mL resazurin, pH7.5; The methane-rich substratum of above-mentioned preparation is distributed into after the anaerobism bottle by following operation: substitute gas, be filled with N 2after add sodium formiate that final concentration is 20mM to obtain take the methane-rich substratum that sodium formiate is substrate, or add sodium acetate that final concentration is 20mM to obtain take the methane-rich substratum that sodium acetate is substrate; Substitute gas, be filled with H 2: CO 2: N 2the gas mixture of=4:1:5, obtain with H 2/ CO 2methane-rich substratum for substrate; Under 115 ℃ of conditions, sterilizing is 30 minutes.
Embodiment 2: utilize the method that the methane anaerobic bacteria flora is processed black liquid of straw pulp paper-making of producing
(1) get embodiment 1 and detect after gas production rate at most and methane purity reach the product methane anaerobic bacteria flora more than 70%, the inoculum size that the volume ratio of take is 5% is inoculated in the methane-rich substratum of its corresponding substrate, with the described condition enlarged culturing of embodiment 1, the product methane anaerobic bacteria flora that to obtain being no less than 1 liter and OD value be 3～4, this flora is the product methane anaerobic bacteria flora for the treatment of paper waste;
(2) ratio that the methane of the product for the treatment of the paper waste anaerobic bacteria flora of step (1) being established is 1:2-3 with anaerobic sludge according to volume ratio is mixed, and is built into the structure flora for the treatment of paper waste;
(3) (the straw-pulp-papermaking wastewater index is: pH=11～12, COD=11000～120,000mg L to select alkaline black liquid of straw pulp paper-making -1) be the paper waste sample, then according to paper waste 1L, the flora of the structure for the treatment of paper waste 3～4L that step (2) makes, the proportional of water 5～6L is mixed it, be linked into again in upflow type anaerobic reactor (UASB), under 30～35 ℃ of conditions, react, after 72 hours, add the paper waste of 10 times of the dilute with waters of 500～1000mL every day to stream in UASB, the pH of interval sampling and measuring paper waste in treating processes, the COD index, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 5 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 3.3 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 2.5 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 2 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 1.6 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 1.4 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 1.25 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, continuous flow adds 5～18 months, the processing of realization to paper waste.
Embodiment 3: utilize the method that the methane anaerobic bacteria flora is processed the wood pulp papermaking black liquor of producing
(1) choose three kinds and produce in the methane anaerobic bacteria floras gas production rate at most and institute's aerogenesis body methane purity reaches the product methane anaerobic bacteria flora more than 70%, the inoculum size that the volume ratio of take is 5%, be inoculated in the anaerobism bottle of 100mL of 20 bottles of 45mL methane-rich substratum that contain corresponding substrate, under 30～35 ℃ of conditions, standing anaerobism is cultivated OD and is reached 3～4, obtains the product methane anaerobic bacteria flora for the treatment of paper waste;
(2) ratio that will be 1:3 according to volume ratio for the treatment of product methane anaerobic bacteria flora and the anaerobic sludge of paper waste is mixed into the structure flora that is applicable to Processing Paper Wastewater
(3) (wood pulp papermaking waste water index is: pH=11～13 to select the wood pulp papermaking black liquor, COD=106, 000～157, 000) be the paper waste sample, then according to wood pulp papermaking waste water 1L, be applicable to the structure flora 3～4L of Processing Paper Wastewater, the proportional of water 5～6L is mixed it, be linked into again in upflow type anaerobic reactor (UASB), under 30～35 ℃ of conditions, react, after 72 hours, add the wood pulp papermaking waste water of 10 times of the dilute with waters of 500～1000mL every day to stream in UASB, the pH of interval sampling and measuring wood pulp papermaking waste water in treating processes, the COD index, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the wood pulp papermaking waste water of 5 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the wood pulp papermaking waste water of 3.3 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the wood pulp papermaking waste water of 2.5 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the wood pulp papermaking waste water of 2 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the wood pulp papermaking waste water of 1.6 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the wood pulp papermaking waste water of 1.4 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the wood pulp papermaking waste water of 1.25 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, continuous flow adds 5～18 months, the processing of realization to paper waste.

Claims (2)

1. one kind is utilized the method for producing methane anaerobic bacteria flora Processing Paper Wastewater, and step is:
(1) get 5 ± 1g straw-pulp-papermaking wastewater settling adds respectively in the 100mL anaerobism bottle that the methane-rich substratum that 45 ± 5mL be take in the 100mL anaerobism bottle of the methane-rich substratum that sodium formiate is substrate, the sodium acetate of take is substrate is housed, with H in anaerobic culture box 2/ CO 2in 100mL anaerobism bottle for the methane-rich substratum of substrate, 30～35 ℃ of standing cultivations 10 ± 1 days; In anaerobic culture box, being 5% inoculum size afterwards by volume is transferred to the enrichment culture thing in each bottle in the above-mentioned anaerobism bottle containing the methane-rich substratum of corresponding substrate again, then 30～35 ℃ of standing cultivations 10 ± 1 days; Then transfer 2-4 time more in the above-described manner, the product methane anaerobic bacteria flora that to have obtained respectively take sodium formiate be substrate, the product methane anaerobic bacteria flora that the sodium acetate of take is substrate and with H 2/ CO 2product methane anaerobic bacteria flora for substrate;
In above-mentioned last switching culturing process, collect respectively with drainage three kinds of gases that produce the generation of methane anaerobic bacteria flora that obtain and also calculate the aerogenesis total amount of cultivating separately 10 ± 1 days, extract separately respectively the gas of 5 ± 1mL simultaneously, detect the purity of methane in each gas with gas chromatograph;
Wherein, above-mentioned methane-rich culture medium prescription is: contain 1.25 gram yeast powders, 0.5 gram peptone, 0.5 gram soya peptone, 0.5 gram Cys, 0.544 gram KH in 1 liter of distilled water 2pO 4, 1.3064 gram Na 2hPO 4, 1mL resazurin, pH7.5; The methane-rich substratum of above-mentioned preparation is distributed into after the anaerobism bottle by following operation: substitute gas, be filled with N 2after add sodium formiate that final concentration is 20mM to obtain take the methane-rich substratum that sodium formiate is substrate, or add sodium acetate that final concentration is 20mM to obtain take the methane-rich substratum that sodium acetate is substrate; Substitute gas, be filled with H 2: CO 2: N 2the gas mixture of=4:1:5, obtain with H 2/ CO 2methane-rich substratum for substrate; Under 115 ℃ of conditions, sterilizing is 30 minutes;
2) get detect after gas production rate at most and methane purity reach the product methane anaerobic bacteria flora more than 70%, the inoculum size that the volume ratio of take is 5% is inoculated in the methane-rich substratum of its corresponding substrate, with the described condition enlarged culturing of step (1), the product methane anaerobic bacteria flora that to obtain being no less than 1 liter and OD value be 3～4, this flora is the product methane anaerobic bacteria flora for the treatment of paper waste;
(3) ratio that the methane of the product for the treatment of the paper waste anaerobic bacteria flora of step (2) being established is 1:2-3 with anaerobic sludge according to volume ratio is mixed, and is built into the structure flora for the treatment of paper waste;
(4) selecting alkaline straw pulp or wood pulp papermaking black liquor is the paper waste sample, then according to paper waste 1L, the flora of the structure for the treatment of paper waste 3～4L that step (3) makes, the proportional of water 5～6L is mixed it, be linked into again in upflow type anaerobic reactor (UASB), under 35～38 ℃ of conditions, react, after 72 hours, add the paper waste of 10 times of the dilute with waters of 500～1000mL every day to stream in UASB, the pH of interval sampling and measuring paper waste in treating processes, the COD index, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 5 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 3.3 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 2.5 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 2 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 1.6 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 1.4 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, treat its pH=8～9, after the COD clearance reaches 50%～60%, add the paper waste of 1.25 times of the dilute with waters of 500～1000mL every day to stream in upflow type anaerobic reactor, continuous flow adds 5～18 months, the processing of realization to paper waste,
Wherein, above-mentioned straw-pulp-papermaking wastewater index is: pH=11～12, COD=11000～120,000mg L -1; Wood pulp papermaking waste water index is: pH=11～13, COD=106,000～157,000.
2. utilize as claimed in claim 1 the method for producing methane anaerobic bacteria flora Processing Paper Wastewater, it is characterized in that: the described anaerobic sludge of step (3) is taken from winery's purification tank for liquid waste pond bottom sediments mud.
CN2013104623632A 2013-09-30 2013-09-30 Method for utilizing methanogenesis anaerobic bacterial flora to treat paper-making waste water Pending CN103466811A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107312716A (en) * 2017-07-21 2017-11-03 山西晋城无烟煤矿业集团有限责任公司 A kind of culture collection process of coal seam anaerobic methane production flora
CN107974419A (en) * 2017-12-14 2018-05-01 中国科学院城市环境研究所 A kind of separation method of the production formic acid acetogen for butyric acid of degrading

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CN103320361A (en) * 2013-06-27 2013-09-25 山东大学 Clostridium for producing acid and application thereof to paper-making wastewater treatment

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Publication number Priority date Publication date Assignee Title
CN103320361A (en) * 2013-06-27 2013-09-25 山东大学 Clostridium for producing acid and application thereof to paper-making wastewater treatment

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CHUNYU YANG ET AL: "Pulp mill wastewater sediment reveals novel methanogenic and cellulolytic populations", 《WATER RESEARCH》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107312716A (en) * 2017-07-21 2017-11-03 山西晋城无烟煤矿业集团有限责任公司 A kind of culture collection process of coal seam anaerobic methane production flora
CN107974419A (en) * 2017-12-14 2018-05-01 中国科学院城市环境研究所 A kind of separation method of the production formic acid acetogen for butyric acid of degrading
CN107974419B (en) * 2017-12-14 2020-05-12 中国科学院城市环境研究所 Separation method of methanogenic acetogenic bacteria for degrading butyric acid

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Application publication date: 20131225