JP4838649B2 - 嫌気性発酵方法及び生物脱硫方法 - Google Patents
嫌気性発酵方法及び生物脱硫方法 Download PDFInfo
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- JP4838649B2 JP4838649B2 JP2006188651A JP2006188651A JP4838649B2 JP 4838649 B2 JP4838649 B2 JP 4838649B2 JP 2006188651 A JP2006188651 A JP 2006188651A JP 2006188651 A JP2006188651 A JP 2006188651A JP 4838649 B2 JP4838649 B2 JP 4838649B2
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- anaerobic
- hydrogen sulfide
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- 238000000855 fermentation Methods 0.000 title claims description 54
- 238000000034 method Methods 0.000 title claims description 31
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 66
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 39
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 39
- 230000004151 fermentation Effects 0.000 claims description 34
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 23
- 239000002028 Biomass Substances 0.000 claims description 17
- -1 sulfide ions Chemical class 0.000 claims description 16
- 241000894006 Bacteria Species 0.000 claims description 13
- 239000002516 radical scavenger Substances 0.000 claims description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 230000001079 digestive effect Effects 0.000 claims description 9
- 230000036542 oxidative stress Effects 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000010494 dissociation reaction Methods 0.000 claims description 6
- 230000005593 dissociations Effects 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000006477 desulfuration reaction Methods 0.000 description 12
- 230000023556 desulfurization Effects 0.000 description 12
- 239000002994 raw material Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 8
- 239000001257 hydrogen Substances 0.000 description 8
- 229910052739 hydrogen Inorganic materials 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 239000003642 reactive oxygen metabolite Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000002503 metabolic effect Effects 0.000 description 5
- 150000003464 sulfur compounds Chemical class 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000003112 inhibitor Substances 0.000 description 4
- 230000002401 inhibitory effect Effects 0.000 description 4
- 239000010815 organic waste Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 150000004763 sulfides Chemical class 0.000 description 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 239000010871 livestock manure Substances 0.000 description 3
- 239000010813 municipal solid waste Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000019086 sulfide ion homeostasis Effects 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 239000010794 food waste Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 150000002505 iron Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052976 metal sulfide Inorganic materials 0.000 description 2
- 230000000696 methanogenic effect Effects 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 239000010909 process residue Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 235000020083 shōchū Nutrition 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010059866 Drug resistance Diseases 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- CXISPYVYMQWFLE-UHFFFAOYSA-N alanylglycine Chemical compound CC(N)C(=O)NCC(O)=O CXISPYVYMQWFLE-UHFFFAOYSA-N 0.000 description 1
- 108010047495 alanylglycine Proteins 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000013626 chemical specie Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- ZOCLAPYLSUCOGI-UHFFFAOYSA-M potassium hydrosulfide Chemical compound [SH-].[K+] ZOCLAPYLSUCOGI-UHFFFAOYSA-M 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- DPLVEEXVKBWGHE-UHFFFAOYSA-N potassium sulfide Chemical compound [S-2].[K+].[K+] DPLVEEXVKBWGHE-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- ZEMGGZBWXRYJHK-UHFFFAOYSA-N thiouracil Chemical compound O=C1C=CNC(=S)N1 ZEMGGZBWXRYJHK-UHFFFAOYSA-N 0.000 description 1
- 229950000329 thiouracil Drugs 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Processing Of Solid Wastes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Sludge (AREA)
Description
バイオマス原料を嫌気性発酵槽に投入して、メタン生成菌によりメタン発酵を行う際に、pH8以上のアルカリ側に維持された該嫌気性発酵槽に、メタン生成菌の酸化ストレスを解消するラジカル捕獲剤として硫酸イオンを解離によって生成する化合物を添加すると共に、継続して該嫌気性発酵槽内をpH8以上のアルカリ側に維持して、メタン発酵液中の前記硫酸イオンが還元されてなる硫化水素をイオン解離した状態で共存させることにより、該イオン解離した状態の硫化水素を前記メタン発酵液中のヒドロキシルラジカルと優先的に反応させて、前記メタン生成菌を酸化ストレスから保護することを特徴とする嫌気性発酵方法。
前記メタン発酵を行い、得られたバイオガス及び消化液を、硫黄酸化細菌を担持した充填層を有する気液接触塔に導入し、精製バイオガスを得ると共に前記消化液中の硫化物イオンを硫酸イオンに再生し、前記再生された硫酸イオンを含む液を、前記ラジカル捕獲剤を含む液として再利用することを特徴とする請求項1記載の嫌気性発酵方法。
図3に示す容量10Lのハンドル50付きの攪拌用パドル51を備えたメタン発酵実験槽52を用いて分別回収した生ごみの高温(55℃)メタン発酵実験を行った。
実施例2において、バイオマスに硫酸を加えて、pH4.0〜4.5に低下させて水素発酵実験を行った。
10:バイオマス原料の投入部
11:バイオガスの排出部
12:攪拌機
2:生物脱硫塔
3:消化液タンク
Claims (2)
- バイオマス原料を嫌気性発酵槽に投入して、メタン生成菌によりメタン発酵を行う際に、pH8以上のアルカリ側に維持された該嫌気性発酵槽に、メタン生成菌の酸化ストレスを解消するラジカル捕獲剤として硫酸イオンを解離によって生成する化合物を添加すると共に、継続して該嫌気性発酵槽内をpH8以上のアルカリ側に維持して、メタン発酵液中の前記硫酸イオンが還元されてなる硫化水素をイオン解離した状態で共存させることにより、該イオン解離した状態の硫化水素を前記メタン発酵液中のヒドロキシルラジカルと優先的に反応させて、前記メタン生成菌を酸化ストレスから保護することを特徴とする嫌気性発酵方法。
- 前記メタン発酵を行い、得られたバイオガス及び消化液を、硫黄酸化細菌を担持した充填層を有する気液接触塔に導入し、精製バイオガスを得ると共に前記消化液中の硫化物イオンを硫酸イオンに再生し、前記再生された硫酸イオンを含む液を、前記ラジカル捕獲剤を含む液として再利用することを特徴とする請求項1記載の嫌気性発酵方法。
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JP4838649B2 true JP4838649B2 (ja) | 2011-12-14 |
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JP5481255B2 (ja) * | 2010-04-01 | 2014-04-23 | 株式会社東芝 | 排水処理装置および排水処理方法 |
JP6385872B2 (ja) * | 2015-03-27 | 2018-09-05 | 住友重機械エンバイロメント株式会社 | 水処理システム及び水処理方法 |
JP2019022881A (ja) * | 2018-03-29 | 2019-02-14 | 有限会社拓芯 | 脱硫剤、嫌気発酵促進剤、堆肥製造促進剤、脱硫方法、嫌気発酵方法、及び、堆肥製造方法 |
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JPS6312399A (ja) * | 1986-07-03 | 1988-01-19 | Hitachi Zosen Corp | 焼酎蒸留廃液の処理方法 |
JP2005095783A (ja) * | 2003-09-25 | 2005-04-14 | Mitsui Eng & Shipbuild Co Ltd | 脱硫方法及び脱硫システム |
JP4164432B2 (ja) * | 2003-10-22 | 2008-10-15 | 潤一 高橋 | メタン発酵方法およびメタン発酵装置 |
JP4516330B2 (ja) * | 2004-03-01 | 2010-08-04 | 荏原エンジニアリングサービス株式会社 | 油脂含有汚濁物質の嫌気性処理方法及び装置 |
JP4044577B2 (ja) * | 2004-07-09 | 2008-02-06 | 株式会社 セテック | メタン発酵装置 |
JP2006187704A (ja) * | 2005-01-05 | 2006-07-20 | Ebara Corp | 有機性廃水及び/又は有機性廃棄物のメタン発酵処理方法及び装置 |
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