CN1089579A - The iron processes pre-treatment of marsh gas fermentation of molasses containing waste water - Google Patents

The iron processes pre-treatment of marsh gas fermentation of molasses containing waste water Download PDF

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Publication number
CN1089579A
CN1089579A CN93110816A CN93110816A CN1089579A CN 1089579 A CN1089579 A CN 1089579A CN 93110816 A CN93110816 A CN 93110816A CN 93110816 A CN93110816 A CN 93110816A CN 1089579 A CN1089579 A CN 1089579A
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China
Prior art keywords
waste water
molasses
biogas fermentation
treatment
biogas
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CN93110816A
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Chinese (zh)
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CN1059645C (en
Inventor
符征鸽
黄志龙
赵跃新
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CHENGDU MARSH GAS SCIENCE INST MINISTRY OF AGRICULTURE
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CHENGDU MARSH GAS SCIENCE INST MINISTRY OF AGRICULTURE
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Priority to CN93110816A priority Critical patent/CN1059645C/en
Publication of CN1089579A publication Critical patent/CN1089579A/en
Application granted granted Critical
Publication of CN1059645C publication Critical patent/CN1059645C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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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  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The invention discloses and a kind ofly can overcome high density SO 4 --Murder by poisoning and high H to biogas fermentation 2S content causes the treatment process of biogas desulfurization difficulty.Be applicable to molasses (sulfurous method) waste water (as: molasses alcohol waste water, molasses yeast wastewater, molasses msg waste water etc.) and other high SO 4 --The pre-treatment of organic waste water biogas fermentation.It is by adding Fe ++Overcome SO 4 --Biogas fermentation is poisoned.Establish the pond of filling the iron plane flower before biogas fermentation device, by the flow of control waste water, make iron plane flower ingress of air earlier, oxidation generates Fe ++, again with Fe ++Be dissolved in the waste water, satisfy the needs of biogas fermentation.

Description

The iron processes pre-treatment of marsh gas fermentation of molasses containing waste water
The iron that the present invention relates to a kind of pretreatment process of biogas fermentation raw material, particularly molasses containing waste water gives treatment process, is applicable to the marsh gas fermentation of molasses containing waste water engineering.
Molasses (sulfurous method) waste water contains SO - 45000～10000mg/l makes existing biogas fermentation engineering have two large problems, and the one, fermentation is unstable, and efficient is low, and fermentation is ended; The 2nd, produce H in the biogas 2S content height (10～40g/m 3), the relevant combustion gas H that surpasses country's promulgation far away 2S content standard (20mg/m 3), increase the biogas engineering desulphurization cost greatly.Overcame the above problems in the past and added Fe in the biogas fermentation raw material ++But the cost height of present various ferrous salts is difficult to be applied to produce.Therefore, high density SO - 4Murder by poisoning is still a difficult problem in China's marsh gas fermentation of molasses containing waste water engineering.
Task of the present invention provides a kind of simple pretreatment process, and it can satisfy marsh gas fermentation of molasses containing waste water to Fe ++Needs so that solve SO - 4Murder by poisoning and generation H to fermenting process 2The problem that S brings.
The present invention is achieved in that before the fermentation unit of molasses containing waste water biogas engineering, establishes the pretreatment pool of dress iron plane flower.In waste water when operation, at first enter pretreatment pool and stay for some time, and discharges then to give treating pond and can enter fermentor tank, allow the iron plane flower in the pretreatment pool of emptying waste water with air catalytic oxidation certain hour after, can handle next batch waste water.The iron plane flower can be recycled repeatedly like this.Answer the iron plane flower of supplement consumed after operation for some time.
The Fe that adds of the present invention ++Method adds Fe than other ++Method is cheap practical, is adding Fe ++In the process, do not bring into any other to the influential material of biogas fermentation.Molasses containing waste water after this law is handled carries out biogas fermentation, can improve fermentation efficiency, reduces H in the biogas significantly 2S content.
The concrete enforcement of invention is as follows:
1, give the design conditions and the parameter for the treatment of pond:
(1) according to the requirement of biogas fermentation, adds the Fe in the waste water ++Should with SO in the waste water - 4Equivalent equal substantially.
(2) after tested, unit weight is 300kg/m 3Iron plane flower, in giving treating pond, contact per hour oxidable generation Fe with air ++0.3kg/m 3
(3) waste water soaks just was enough to the Fe that the oxidation of dissolved iron wood shavings produces in 1 hour ++, prolong soak time, waste water Fe ++Concentration does not have obvious increase.
(4) give processing cycle=waste water emptying after iron plane spend the residence time of time+waste water in giving treating pond of ingress of air oxidation
(5) contain SO according to waste water - 4Concentration, can calculate and give the processing cycle:
Give the processing cycle (waste water SO 4=concentration (mg/l) * 56)/(Fe ++Productive rate (300mg/m 3H) * 96)+1(hour)
(6) give the volume for the treatment of pond=give processing cycle (d) * wastewater flow (m 3/ d)
(7) shape of giving treating pond is not limit.But water inlet can be filled, and water outlet can emptying.
2, waste water gives the operation of processing
During operation, contain SO according to waste water - 4Concentration is calculated the Fe that biogas fermentation needs ++Concentration, be dissolved in Fe in the waste water by detection ++Concentration whether satisfy the needs of biogas fermentation, as Fe ++Concentration is higher, is giving under the constant situation of processing cycle, by reducing the ingress of air oxidization time, prolongs soak time and reduces the Fe that adds waste water ++Amount.As Fe ++Concentration is on the low side, is giving under the constant situation of processing cycle, can be by increasing oxidization time, shorten soak time (but the shortest can not be less than 1 hour), and increase the Fe that adds waste water ++Amount.

Claims (4)

1, molasses containing waste water (with the turn out a produce waste water of discharging of the molasses) iron processes of biogas fermentation is given treatment process, it is characterized in that:
A. before biogas fermentation device, establish the treating pond that gives of filling the iron plane flower.
B waste water is interrupted by giving treating pond, finishing and gives processing.
2, according to the described method of claim 1, it is characterized in that:
Give the volume for the treatment of pond=give processing cycle (d) * wastewater flow (m 3/ d)
Give the processing cycle (waste water SO 4=concentration (mg/l) * 56)/(300 * 96)+1(hour)
3, according to claim 1, it is characterized in that waste water Fe through giving processing ++Concentration increases by 2000～6000mg/l.
4,, it is characterized in that the emptying waste water time of giving treating pond by control regulates the Fe that is dissolved in waste water according to claim 1,3 described ++Concentration.
CN93110816A 1993-01-11 1993-01-11 Iron method for preptreatment for marsh gas fermentation of molasses containing waste water Expired - Fee Related CN1059645C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN93110816A CN1059645C (en) 1993-01-11 1993-01-11 Iron method for preptreatment for marsh gas fermentation of molasses containing waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN93110816A CN1059645C (en) 1993-01-11 1993-01-11 Iron method for preptreatment for marsh gas fermentation of molasses containing waste water

Publications (2)

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CN1089579A true CN1089579A (en) 1994-07-20
CN1059645C CN1059645C (en) 2000-12-20

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CN93110816A Expired - Fee Related CN1059645C (en) 1993-01-11 1993-01-11 Iron method for preptreatment for marsh gas fermentation of molasses containing waste water

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101705126B (en) * 2009-07-28 2012-07-11 北京合百意可再生能源技术有限公司 In-situ biogas coupling type long-acting desulfurizer
CN103102012A (en) * 2011-11-10 2013-05-15 中国石油化工股份有限公司 Anaerobic biochemistry treatment method for cellulose ethanol wastewater
CN103789351A (en) * 2014-01-14 2014-05-14 中国科学院广州能源研究所 Method for producing biogas by taking molasses as substrate
CN105755051A (en) * 2016-03-22 2016-07-13 李明阳 Methane preparation method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1144376A (en) * 1980-06-02 1983-04-12 Gilles Legault Leaching process for niobium and (or) tantalum minerals
SE452605B (en) * 1984-04-11 1987-12-07 Purac Ab SET TO CLEAN THE WASTE WATER FROM MANUFACTURE OF CELLULOSAMASSA BY ANAEROBIC CLEANING
CN1041744A (en) * 1988-10-08 1990-05-02 崔健久 The comprehensive utilization process of the poor liquid anaerobic treatment residuum of brewery
JPH0696155B2 (en) * 1989-08-25 1994-11-30 日本碍子株式会社 Method and apparatus for treating organic wastewater by methane fermentation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101705126B (en) * 2009-07-28 2012-07-11 北京合百意可再生能源技术有限公司 In-situ biogas coupling type long-acting desulfurizer
CN103102012A (en) * 2011-11-10 2013-05-15 中国石油化工股份有限公司 Anaerobic biochemistry treatment method for cellulose ethanol wastewater
CN103102012B (en) * 2011-11-10 2015-05-13 中国石油化工股份有限公司 Anaerobic biochemistry treatment method for cellulose ethanol wastewater
CN103789351A (en) * 2014-01-14 2014-05-14 中国科学院广州能源研究所 Method for producing biogas by taking molasses as substrate
CN103789351B (en) * 2014-01-14 2016-04-20 中国科学院广州能源研究所 A kind of method taking molasses as substrate and produce biological flue gas
CN105755051A (en) * 2016-03-22 2016-07-13 李明阳 Methane preparation method

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