JP7515166B2 - 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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- JP7515166B2 JP7515166B2 JP2020168701A JP2020168701A JP7515166B2 JP 7515166 B2 JP7515166 B2 JP 7515166B2 JP 2020168701 A JP2020168701 A JP 2020168701A JP 2020168701 A JP2020168701 A JP 2020168701A JP 7515166 B2 JP7515166 B2 JP 7515166B2
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- methane fermentation
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- 238000000855 fermentation Methods 0.000 title claims description 109
- 230000004151 fermentation Effects 0.000 title claims description 109
- 238000004065 wastewater treatment Methods 0.000 title claims description 37
- 239000007787 solid Substances 0.000 claims description 78
- 238000000926 separation method Methods 0.000 claims description 52
- 239000007788 liquid Substances 0.000 claims description 46
- 239000002253 acid Substances 0.000 claims description 40
- 238000004090 dissolution Methods 0.000 claims description 38
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 238000011144 upstream manufacturing Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 3
- 238000010979 pH adjustment Methods 0.000 claims description 2
- 239000011343 solid material Substances 0.000 claims 2
- 239000002351 wastewater Substances 0.000 description 25
- 238000005188 flotation Methods 0.000 description 22
- 239000005416 organic matter Substances 0.000 description 18
- 239000003921 oil Substances 0.000 description 14
- 235000019198 oils Nutrition 0.000 description 13
- 239000008187 granular material Substances 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 102000004169 proteins and genes Human genes 0.000 description 6
- 108090000623 proteins and genes Proteins 0.000 description 6
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- 238000004519 manufacturing process Methods 0.000 description 4
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 229940088598 enzyme Drugs 0.000 description 3
- 239000008394 flocculating agent Substances 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
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- 241000894006 Bacteria Species 0.000 description 2
- 102000035195 Peptidases Human genes 0.000 description 2
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- 230000002378 acidificating effect Effects 0.000 description 2
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- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
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- 238000011084 recovery Methods 0.000 description 2
- 239000000243 solution Substances 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
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- 239000005446 dissolved organic matter Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
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- 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
- 235000013305 food Nutrition 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
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- 230000000696 methanogenic effect Effects 0.000 description 1
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- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
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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
- Physical Water Treatments (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Sludge (AREA)
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に、気泡の浮力を利用して固形物を浮上させて分離する固液分離手段としての加圧浮上分離装置が設けられ、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。 - 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、
前記酸発酵槽の後段に、気泡の浮力を利用して固形物を浮上させて分離する固液分離手段としての加圧浮上分離装置が設けられ、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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JP7515166B2 true JP7515166B2 (ja) | 2024-07-12 |
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Citations (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 |
JP2010069397A (ja) | 2008-09-17 | 2010-04-02 | Sumitomo Heavy Industries Environment Co Ltd | 排水処理装置 |
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2020
- 2020-10-05 JP JP2020168701A patent/JP7515166B2/ja active Active
Patent Citations (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 |
JP2010069397A (ja) | 2008-09-17 | 2010-04-02 | Sumitomo Heavy Industries Environment Co Ltd | 排水処理装置 |
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