CN111424055B - 一种厌氧转化海藻酸钠生产废水为甲烷和有机酸的方法 - Google Patents
一种厌氧转化海藻酸钠生产废水为甲烷和有机酸的方法 Download PDFInfo
- Publication number
- CN111424055B CN111424055B CN202010032873.6A CN202010032873A CN111424055B CN 111424055 B CN111424055 B CN 111424055B CN 202010032873 A CN202010032873 A CN 202010032873A CN 111424055 B CN111424055 B CN 111424055B
- Authority
- CN
- China
- Prior art keywords
- sodium alginate
- methane
- anaerobic
- production wastewater
- organic acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000000661 sodium alginate Substances 0.000 title claims abstract description 49
- 235000010413 sodium alginate Nutrition 0.000 title claims abstract description 49
- 229940005550 sodium alginate Drugs 0.000 title claims abstract description 49
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000002351 wastewater Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 16
- 150000007524 organic acids Chemical class 0.000 title claims abstract description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000010802 sludge Substances 0.000 claims abstract description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 16
- 239000001963 growth medium Substances 0.000 claims abstract description 13
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 claims abstract description 11
- 229930195725 Mannitol Natural products 0.000 claims abstract description 11
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 11
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 11
- 239000000594 mannitol Substances 0.000 claims abstract description 11
- 235000010355 mannitol Nutrition 0.000 claims abstract description 11
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 10
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000012258 culturing Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000006228 supernatant Substances 0.000 claims abstract description 4
- 239000002054 inoculum Substances 0.000 claims abstract description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 27
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 claims description 14
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 14
- 239000001257 hydrogen Substances 0.000 claims description 11
- 229910052739 hydrogen Inorganic materials 0.000 claims description 11
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 9
- 239000002207 metabolite Substances 0.000 claims description 9
- 235000019260 propionic acid Nutrition 0.000 claims description 7
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 7
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 6
- 238000005119 centrifugation Methods 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 3
- 239000007836 KH2PO4 Substances 0.000 claims description 3
- 239000007832 Na2SO4 Substances 0.000 claims description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 3
- 239000001110 calcium chloride Substances 0.000 claims description 3
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 3
- MPTQRFCYZCXJFQ-UHFFFAOYSA-L copper(II) chloride dihydrate Chemical compound O.O.[Cl-].[Cl-].[Cu+2] MPTQRFCYZCXJFQ-UHFFFAOYSA-L 0.000 claims description 3
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 claims description 3
- DHRRIBDTHFBPNG-UHFFFAOYSA-L magnesium dichloride hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[Cl-].[Cl-] DHRRIBDTHFBPNG-UHFFFAOYSA-L 0.000 claims description 3
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 3
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- HNFOAHXBHLWKNF-UHFFFAOYSA-M sodium;2-bromoethanesulfonate Chemical compound [Na+].[O-]S(=O)(=O)CCBr HNFOAHXBHLWKNF-UHFFFAOYSA-M 0.000 claims 1
- 239000000047 product Substances 0.000 abstract description 9
- 230000002503 metabolic effect Effects 0.000 abstract description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 13
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 12
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 241001474374 Blennius Species 0.000 description 3
- 241000199919 Phaeophyceae Species 0.000 description 3
- 239000012159 carrier gas Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000512259 Ascophyllum nodosum Species 0.000 description 2
- QRMLKVVWCJUMPR-UHFFFAOYSA-N BrCC[Na] Chemical compound BrCC[Na] QRMLKVVWCJUMPR-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 230000000696 methanogenic effect Effects 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 241000264279 Sargassum fusiforme Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 241001261506 Undaria pinnatifida Species 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 238000013375 chromatographic separation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
- C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
- C12P5/023—Methane
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P3/00—Preparation of elements or inorganic compounds except carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
- C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
- C12P7/06—Ethanol, i.e. non-beverage
- C12P7/08—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
- C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
- C12P7/16—Butanols
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/40—Preparation of oxygen-containing organic compounds containing a carboxyl group including Peroxycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/40—Preparation of oxygen-containing organic compounds containing a carboxyl group including Peroxycarboxylic acids
- C12P7/52—Propionic acid; Butyric acids
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/40—Preparation of oxygen-containing organic compounds containing a carboxyl group including Peroxycarboxylic acids
- C12P7/54—Acetic acid
-
- 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
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
Abstract
本发明提供了一种厌氧转化海藻酸钠生产废水为甲烷和有机酸的方法,包括以下步骤:S1,取厌氧污泥,用培养基悬浮振荡混合均匀,离心去上清,重复以上操作若干次;S2,将步骤S1得到的厌氧污泥接种于厌氧反应器中,加入培养基、海藻酸钠和甘露醇,通入过量的氮气和二氧化碳混合气,并密封,在温度为20~25℃的条件下连续培养60~80天,进行海藻酸钠水解菌群的富集;S3,将步骤S2富集的海藻酸钠水解菌群接种于厌氧反应器中,以海藻酸钠生产废水为底物,接种量为50~250mL/L,通入过量的氮气和二氧化碳的混合气体,将厌氧反应器密封,在温度为20~25℃的条件下培养5~15天,得到代谢产物甲烷和有机酸。该方法能够转化海藻酸钠生产废水为甲烷和有机酸,成本低。
Description
技术领域
本发明涉及一种厌氧转化海藻酸钠生产废水为甲烷和有机酸的方法,属于污水处理技术领域。
背景技术
海藻是重要的海洋化工原料。我国的优势褐藻资源是海带,年产量占世界产量的70%以上,目前我国工业上开发利用的海藻主要是褐藻,包括海带、马尾藻、裙带菜和羊栖菜等。其中,用褐藻生产的海藻酸钠(也称褐藻胶)、碘和甘露醇等是食品和医药等行业的重要原料。尤其是海藻酸钠是产量最大的产品之一。但是,我国的海藻化工生产企业生产海藻酸钠的过程中排放了大量的废水(包含海藻酸钠和甘露醇等有机成分),据统计每生产一吨海藻酸钠大约耗水1000吨的高浓度有机废水(其中,CODCr约10000mg/L,SS在4000mg/L左右,pH为2-3之间)。目前这些水都被当作废水经过好氧处理后排放。其中,海藻酸钠是高分子多糖,好氧降解困难,因此,实际处理时需要耦合高级氧化技术,导致运行成本较高。因此,常规的处理技术不仅大量浪费宝贵的水资源,而且还造成较大的环境负担。
混菌厌氧发酵是一项重要的环境生物技术,能够利用有机废物生产甲烷、小分子有机酸和氢气等产品,在处理废水的同时也实现了有机废物的资源化利用。但是,现有技术中,还没有成熟的混菌厌氧发酵处理海藻酸钠生产废水的方法。
发明内容
本发明提供了一种,可以有效解决上述问题。
本发明是这样实现的:
一种厌氧转化海藻酸钠生产废水为甲烷和有机酸的方法,包括以下步骤:
S1,取厌氧污泥,用培养基悬浮振荡混合均匀,离心去上清,重复以上操作若干次;
S2,将步骤S1得到的厌氧污泥接种于厌氧反应器中,加入培养基、海藻酸钠和甘露醇,通入过量的氮气和二氧化碳混合气,并密封,在温度为20~25℃的条件下连续培养60~80天,进行海藻酸钠水解菌群的富集;
S3,将步骤S2富集的海藻酸钠水解菌群接种于厌氧反应器中,以海藻酸钠生产废水为底物,接种量为50~250mL/L,通入过量的氮气和二氧化碳的混合气体,将厌氧反应器密封,在温度为20~25℃的条件下培养5~15天,得到代谢产物甲烷和有机酸。
作为进一步改进的,在步骤S1中,所述厌氧污泥来源于处理剩余污泥的厌氧反应器。
作为进一步改进的,在步骤S1中,所述离心的转速为8500~10000rpm,离心时间为3~7min。
作为进一步改进的,所述培养基的配方为NH4Cl 350~750mg/L;KH2PO4 180~220mg/L;Na2SO4 10~15mg/L;CaCl2 20~30mg/L;MgCl2.6H2O 50~80mg/L;MnCl2.4H2O 0.8~1.5mg/L;CoCl2.2H2O 1.2~1.8mg/L;FeSO4.7H2O 3.0~3.5mg/L;AlCl3 0.5~1.0mg/L;NaMO4.2H2O 0.1~0.5mg/L;H3BO3 0.2~0.5mg/L;NiCl2.6H2O 0.5~1.5mg/L;CuCl2.2H2O1.0~2.0mg/L;ZnSO4.2H2O 3.0~5.0mg/L。
作为进一步改进的,所述培养基通过酸或碱调节pH为7.0~7.8。
作为进一步改进的,所述海藻酸钠和甘露醇的在反应体系中的浓度均为1~5g/L。
作为进一步改进的,所述氮气和二氧化碳的混合气体中氮气和二氧化碳的体积比70~85%:15~25%。
作为进一步改进的,所述有机酸为乙酸、丙酸、丁酸或己酸中的一种或多种。
本发明的有益效果是:
本发明的厌氧转化海藻酸钠生产废水为甲烷和有机酸的方法能够快速水解转化海藻酸钠和甘露醇。
本发明的厌氧转化海藻酸钠生产废水为甲烷和有机酸的方法能够转化海藻酸钠生产废水为甲烷,氢气,乙酸,丙酸,丁酸,己酸,乙醇和丁醇等产品,实现变废为宝。
本发明厌氧转化海藻酸钠生产废水为甲烷和有机酸的方法相对于传统的高级氧化技术,具有运行条件温和运行成本低等优势。
附图说明
为了更清楚地说明本发明实施方式的技术方案,下面将对实施方式中所需要使用的附图作简单地介绍,应当理解,以下附图仅示出了本发明的某些实施例,因此不应被看作是对范围的限定,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他相关的附图。
图1为本发明实施例的海藻酸钠水解菌群AHB降解海藻酸钠的厌氧反应器装置图。
图2为本发明实施例1的海藻酸钠水解菌群AHB水解海藻酸钠为小分子的变化图。
图3为本发明实施例1的海藻酸钠水解菌群AHB降解海藻酸钠和甘露醇为甲烷的变化图。
具体实施方式
为使本发明实施方式的目的、技术方案和优点更加清楚,下面将结合本发明实施方式中的附图,对本发明实施方式中的技术方案进行清楚、完整地描述,显然,所描述的实施方式是本发明一部分实施方式,而不是全部的实施方式。基于本发明中的实施方式,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施方式,都属于本发明保护的范围。因此,以下对在附图中提供的本发明的实施方式的详细描述并非旨在限制要求保护的本发明的范围,而是仅仅表示本发明的选定实施方式。基于本发明中的实施方式,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施方式,都属于本发明保护的范围。
实施例1:
取厌氧污泥500mL,该厌氧污泥来源于福州金山污水处理厂降解剩余污泥的厌氧反应器(运行温度为35-37℃,水力学停留时间为15天,有机负荷为2.0g-COD/(L天),甲烷产量为500-800mL/天,微生物浓度为11-15g/L),利用500mL无机盐厌氧培养基(为常规培养基,pH值为7.2-7.5,其组成为NH4Cl 450mg/L;KH2PO4 500mg/L;Na2SO4 20mg/L;CaCl2 20mg/L;MgCl2.6H2O 50mg/L;MnCl2.4H2O 0.8mg/L;CoCl2.2H2O 1.2mg/L;FeSO4.7H2O 3.2mg/L;AlCl3 0.5mg/L;NaMO4.2H2O 0.1mg/L;H3BO3 0.2mg/L;NiCl2.6H2O 0.5mg/L;CuCl2.2H2O1.1mg/L;ZnSO4.2H2O 3.2mg/L)悬浮污泥,涡流振荡混合均匀;设置离心10000rpm,5分钟离心,去除上清液;上述步骤重复4-5次,确保去除厌氧污泥中原有的小分子有机质。
之后,将清洗过后的厌氧污泥(500mL)接种于工作体积为2.5L的厌氧反应器(图1)中,并加入10.0g海藻酸钠,2g甘露醇和2L上述厌氧培养基,确保加入的微生物量在2-4g/L左右。通入200L(氮气/二氧化碳=80%/20%)混合气,排除反应器中原有的空气。将上述厌氧反应器密封,并维持温度为22℃。每隔2天分析主要代谢产物,包括甲烷和氢气采用气相色谱仪(SP6890,山东鲁南瑞虹化工仪器有限公司)分析。乙酸,丙酸,丁酸,己酸,乙醇和丁醇等采用气相色谱仪(GC7890,安捷伦科技(中国)有限公司)分析。每隔10天加入10.0g海藻酸钠,连续培养70天,得到AHB菌群,其分泌的海藻酸钠水解酶具有水解海藻酸钠的功能(图2),能够将海藻酸钠快速水解为分子量为460的二聚体。该菌群能够降解海藻酸钠和甘露醇为甲烷(如图3所示)。
进一步,在厌氧反应器(总体积2.5L,工作体积1.0L)中,接种富集得到的AHB菌群250mL,以海藻酸钠废水(750mL)为底物,维持温度为20℃,pH值为7.2-7.8,经过15天发酵,主要代谢产物包括甲烷(8.2mM),中间代谢产物包括氢气(0.1mM)和乙酸(150mg/L)等产品;而当加入2-溴乙基磺酸钠抑制产甲烷菌活性后,代谢产物中不含有甲烷,主要包括氢气(0.15mM),乙酸(1200mg/L),丙酸(500mg/L),丁酸(650mg/L),己酸(50mg/L),乙醇(450mg/L)和丁醇(50mg/L)等产品。
所述甲烷和氢气采用气相色谱仪(SP6890,山东鲁南瑞虹化工仪器有限公司)检测。该仪器主要仪器参数如下:包括双路热导池的检测器和两根长度为2m填充分子筛的不锈钢气相色谱分离柱。氢气的测定条件为:进样口、柱温箱和热导池温度分别为60、80和100℃;用氮气气作为载气;气体的进样量为1mL。气相中甲烷的测定条件改为:进样口、柱温箱和热导池温度分别为120、120和130℃;用氢气作为载气;气体的进样量为1mL。乙酸,丙酸,丁酸,己酸,乙醇和丁醇等采用气相色谱仪(GC7890,安捷伦科技(中国)有限公司)进行检测。该仪器主要包括火焰离子化检测器、自动进样系统和色谱柱(30m×0.25mm×0.25μm的熔融硅胶毛细管色谱柱(DB-FFAP))。测定条件简述如下:采用程序升温方式控制柱温箱温度,初温为70℃并保持3分钟,然后以20℃/分钟的速度升高到180℃,并保持3分钟;进样口和检测器的温度分别设定为250和300℃;载气是高纯N2(>99.99%)。液相样品测定之前先用0.45μm微滤膜过滤,然后用3%的甲酸溶液稀释和酸化。
实施例2:
在厌氧反应器(总体积2.5L,工作体积1.0L)中,接种富集得到的AHB菌群250mL,添加750mL培养基,该AHB菌群以海藻酸钠(2.0g)为底物,维持温度为25℃,pH值为7.2-7.8,经过10天发酵,其他操作同实施例1。经检测,主要代谢产物包括甲烷(9mM),中间代谢产物包括氢气(0.1mM)和乙酸(100mg/L)等产品;当加入2-溴乙基磺酸钠抑制产甲烷菌活性后,代谢产物中不含有甲烷,主要包括氢气(1.0mM),乙酸(550mg/L),丙酸(210mg/L),丁酸(330mg/L),己酸(85mg/L),乙醇(100mg/L)和丁醇(50mg/L)等产品。
以上所述仅为本发明的优选实施方式而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (2)
1.一种厌氧转化海藻酸钠生产废水为甲烷和有机酸的方法,其特征在于:包括以下步骤:
S1,取厌氧污泥,用培养基悬浮振荡混合均匀,离心去上清,重复以上操作若干次;所述厌氧污泥来源于处理剩余污泥的厌氧反应器;
S2,将步骤 S1 得到的厌氧污泥接种于厌氧反应器中,加入培养基、海藻酸钠和甘露醇,通入过量的氮气和二氧化碳混合气体,并密封,在温度为 20~25℃的条件下连续培养60~80天,进行海藻酸钠水解菌群的富集;所述海藻酸钠和甘露醇在反应体系中的浓度均为1~5g/L;
S3,将步骤S2富集的海藻酸钠水解菌群接种于厌氧反应器中,以海藻酸钠生产废水为底物,接种量为50~250 mL/L,通入过量的氮气和二氧化碳的混合气体,加入2-溴乙基磺酸钠,将厌氧反应器密封,在温度为20~25℃的条件下培养5~15天,得到代谢产物,所述代谢产物包括氢气、乙酸、丙酸、丁酸;
所述氮气和二氧化碳的混合气体中氮气和二氧化碳的体积比70~85%:15~25%;
所述培养基的配方为NH4Cl 350~750 mg/L; KH2PO4 180~220 mg/L; Na2SO4 10~15 mg/L; CaCl2 20~30 mg/L; MgCl2.6H2O 50~80 mg/L; MnCl2.4H2O 0.8~1.5 mg/L; CoCl2.2H2O1.2~1.8 mg/L; FeSO4.7H2O 3.0~3.5 mg/L; AlCl3 0.5~1.0 mg/L ; NaMO4.2H2O 0.1~0.5mg/L; H3BO3 0.2~0.5 mg/L; NiCl2.6H2O 0.5~1.5 mg/L; CuCl2.2H2O 1.0~2.0 mg/L;ZnSO4.2H2O 3.0~5.0 mg/L;
所述培养基通过酸或碱调节pH为7.2~7.5。
2.根据权利要求1所述的厌氧转化海藻酸钠生产废水为甲烷和有机酸的方法,其特征在于:在步骤S1中,所述离心的转速为8500~10000 rpm,离心时间为3~7min。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010032873.6A CN111424055B (zh) | 2020-01-13 | 2020-01-13 | 一种厌氧转化海藻酸钠生产废水为甲烷和有机酸的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010032873.6A CN111424055B (zh) | 2020-01-13 | 2020-01-13 | 一种厌氧转化海藻酸钠生产废水为甲烷和有机酸的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111424055A CN111424055A (zh) | 2020-07-17 |
CN111424055B true CN111424055B (zh) | 2024-04-19 |
Family
ID=71551589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010032873.6A Active CN111424055B (zh) | 2020-01-13 | 2020-01-13 | 一种厌氧转化海藻酸钠生产废水为甲烷和有机酸的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111424055B (zh) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62269695A (ja) * | 1986-05-15 | 1987-11-24 | Shimizu Constr Co Ltd | 酢酸の製造方法 |
WO2013067896A1 (zh) * | 2011-11-07 | 2013-05-16 | 沈阳科思高科技有限公司 | 一种微波化学法提取褐藻多糖的方法 |
CN107555596A (zh) * | 2017-10-27 | 2018-01-09 | 南京大学 | 一种提高厌氧污泥产甲烷性能的方法 |
WO2019132423A1 (ko) * | 2017-12-29 | 2019-07-04 | 한국전력공사 | 이상 혐기발효를 이용한 고순도 메탄 생산시스템 및 생산방법 |
-
2020
- 2020-01-13 CN CN202010032873.6A patent/CN111424055B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62269695A (ja) * | 1986-05-15 | 1987-11-24 | Shimizu Constr Co Ltd | 酢酸の製造方法 |
WO2013067896A1 (zh) * | 2011-11-07 | 2013-05-16 | 沈阳科思高科技有限公司 | 一种微波化学法提取褐藻多糖的方法 |
CN107555596A (zh) * | 2017-10-27 | 2018-01-09 | 南京大学 | 一种提高厌氧污泥产甲烷性能的方法 |
WO2019132423A1 (ko) * | 2017-12-29 | 2019-07-04 | 한국전력공사 | 이상 혐기발효를 이용한 고순도 메탄 생산시스템 및 생산방법 |
Non-Patent Citations (1)
Title |
---|
Synergetic alginate conversion by a microbial consortium of hydrolytic bacteria and methanogens;Fang Zhang 等;《Water Research》;第163卷;1-9 * |
Also Published As
Publication number | Publication date |
---|---|
CN111424055A (zh) | 2020-07-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Wang et al. | Using filtrate of waste biosolids to effectively produce bio-hydrogen by anaerobic fermentation | |
US5464539A (en) | Process for the production of hydrogen by microorganisms | |
Chartrain et al. | Microbial ecophysiology of whey biomethanation: characterization of bacterial trophic populations and prevalent species in continuous culture | |
de Bok et al. | Biochemical evidence for formate transfer in syntrophic propionate-oxidizing cocultures of Syntrophobacter fumaroxidans and Methanospirillum hungatei | |
CN111424056B (zh) | 一种提升餐厨垃圾厌氧消化产沼效率的方法 | |
EP0604708A1 (en) | Fermentation method for the fast production of methane | |
CN114908002A (zh) | 一种生物纳米硒强化复合菌株及其应用 | |
CN113307377A (zh) | 一种利用活性微藻耦合处理发酵排放废气与废水的方法 | |
CN111424055B (zh) | 一种厌氧转化海藻酸钠生产废水为甲烷和有机酸的方法 | |
Kataoka et al. | Examination of bacterial characteristics of anaerobic membrane bioreactors in three pilot-scale plants for treating low-strength wastewater by application of the colony-forming-curve analysis method | |
CN108546659B (zh) | 一种烷烃和多环芳烃降解复合菌剂及其制备方法 | |
CN116251819A (zh) | 利用食品行业有机废渣生产污水处理用反硝化碳源的方法 | |
CN113980933B (zh) | 一种复合酶制备及其处理废水污泥的方法 | |
CN111019975B (zh) | 一种厌氧转化剩余污泥为甲烷和有机酸的方法 | |
CN111607554B (zh) | 一种提升木薯酒糟废液发酵产沼气量的混合金属盐配方 | |
JPH08294396A (ja) | 水素ガス生産方法 | |
Borja et al. | Kinetics of methane production from wine distillery wastewater in an immobilised cell bioreactor using sepiolite as support medium | |
CN112522151A (zh) | 一种复合产甲烷菌制备方法及其应用 | |
CN111003881A (zh) | 一种餐余垃圾再生利用方法 | |
Guyot et al. | Evolution of microbial activities and population in granular sludge from an UASB reactor | |
CN111334533A (zh) | 纤维素酶促进办公废纸和污泥厌氧发酵生产挥发性脂肪酸的方法 | |
JP4423389B2 (ja) | 有機性汚泥の処理方法、その処理装置及び新菌株 | |
CN110746063A (zh) | 一种油泥砂无害化处理的方法 | |
JPH0731484A (ja) | 生物学的水素生産方法 | |
CN114772887B (zh) | 一种利用碳酸氢铵提升污泥厌氧消化产甲烷量的方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |