JP2022060930A - メタン発酵排水処理装置 - Google Patents
メタン発酵排水処理装置 Download PDFInfo
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- JP2022060930A JP2022060930A JP2020168701A JP2020168701A JP2022060930A JP 2022060930 A JP2022060930 A JP 2022060930A JP 2020168701 A JP2020168701 A JP 2020168701A JP 2020168701 A JP2020168701 A JP 2020168701A JP 2022060930 A JP2022060930 A JP 2022060930A
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- tank
- methane fermentation
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 176
- 238000000855 fermentation Methods 0.000 title claims abstract description 102
- 230000004151 fermentation Effects 0.000 title claims abstract description 102
- 239000002351 wastewater Substances 0.000 title abstract description 29
- 239000007787 solid Substances 0.000 claims abstract description 78
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 238000000926 separation method Methods 0.000 claims abstract description 44
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims description 37
- 238000004065 wastewater treatment Methods 0.000 claims description 37
- 238000004090 dissolution Methods 0.000 claims description 31
- 238000005188 flotation Methods 0.000 claims description 24
- 239000000126 substance Substances 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 3
- 102000004169 proteins and genes Human genes 0.000 abstract description 7
- 108090000623 proteins and genes Proteins 0.000 abstract description 7
- 230000002378 acidificating effect Effects 0.000 abstract description 3
- 239000011368 organic material Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 14
- 235000019198 oils Nutrition 0.000 description 13
- 239000005416 organic matter Substances 0.000 description 13
- 239000008187 granular material Substances 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 5
- 238000005339 levitation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 102000004190 Enzymes Human genes 0.000 description 4
- 108090000790 Enzymes Proteins 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 102000035195 Peptidases Human genes 0.000 description 2
- 108091005804 Peptidases Proteins 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 235000001014 amino acid Nutrition 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 235000021185 dessert Nutrition 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000002921 fermentation waste Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000000696 methanogenic effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 235000019871 vegetable fat Nutrition 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
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Sludge (AREA)
- Physical Water Treatments (AREA)
Abstract
Description
図1は、固液分離装置を酸発酵槽の後段に設置する場合の、本発明のメタン発酵排水処理装置の一実施態様を示す説明図であり、1は調整槽、2は酸発酵槽、3はUASBメタン発酵槽である。
溶解性有機物および油分、たんぱく質、その他の有機物からなる有機性固形物を含む被処理水は調整槽1に流入され、循環ポンプ15を稼働して調整槽1内を撹拌しながら12~24時間滞留させることにより被処理水は均一に混合される。なお調整槽1は発生元で流出される有機性排水の流量が変動しても滞留させることにより一定の流量で当該排水を処理できるような役割も持っている。
2 酸発酵槽
3 UASBメタン発酵槽
4 加圧浮上分離装置
5 配管
6 スカム受け槽
7 溶解槽
8 配管
9 配管
10 配管
11 循環ポンプ
12 循環配管
13 pH計
14 薬液注入ポンプ
15 循環ポンプ
16 循環配管
17 配管
18 配管
19 処理水流出管
20 ガス放出管
21 ブロー管
22 調整槽兼酸発酵槽
Claims (5)
- 酸発酵槽とUASBメタン発酵槽とからなるメタン発酵排水処理装置において、
前記酸発酵槽の前段または後段に固形物を分離する固液分離手段が設けられ、該固液分離手段は、分離された前記固形物を溶解槽に送給する配管と、前記固形物が分離されて残った分離水を前記固液分離手段の下流側へ送給する配管とを有し、
前記溶解槽は、前記固形物を撹拌して有機性成分を溶解させる溶解手段と、溶解した前記有機性成分を前記固液分離手段の上流側へ返送する配管を有することを特徴とするメタン発酵排水処理装置。 - 前記固液分離手段が、気泡の浮力を利用して前記固形物を浮上させる加圧浮上分離装置からなる、請求項1に記載のメタン発酵排水処理装置。
- 前記溶解槽に、薬液注入によりpHを調整するpH調整手段が設けられている、請求項1または2に記載のメタン発酵排水処理装置。
- 前記溶解槽において、前記固形物がポンプにより循環撹拌される、請求項1~3のいずれかに記載のメタン発酵排水処理装置。
- 前記溶解槽に、溶解せず残留する固形物を系外に排出する配管が設けられている、請求項1~4のいずれかに記載のメタン発酵排水処理装置。
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Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005125202A (ja) | 2003-10-22 | 2005-05-19 | Sumitomo Heavy Ind Ltd | 有機性廃水の処理装置 |
JP2005185967A (ja) | 2003-12-25 | 2005-07-14 | Sumitomo Heavy Ind Ltd | 有機性廃水の処理方法及び処理装置 |
JP5064338B2 (ja) | 2008-09-17 | 2012-10-31 | 住友重機械エンバイロメント株式会社 | 排水処理装置 |
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