JP6749313B2 - 水処理方法及び水処理装置 - Google Patents
水処理方法及び水処理装置 Download PDFInfo
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- JP6749313B2 JP6749313B2 JP2017506536A JP2017506536A JP6749313B2 JP 6749313 B2 JP6749313 B2 JP 6749313B2 JP 2017506536 A JP2017506536 A JP 2017506536A JP 2017506536 A JP2017506536 A JP 2017506536A JP 6749313 B2 JP6749313 B2 JP 6749313B2
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- sludge
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 118
- 238000000034 method Methods 0.000 title claims description 61
- 239000010802 sludge Substances 0.000 claims description 161
- 239000007788 liquid Substances 0.000 claims description 67
- 238000002156 mixing Methods 0.000 claims description 56
- 238000000926 separation method Methods 0.000 claims description 54
- 238000006243 chemical reaction Methods 0.000 claims description 44
- 239000002351 wastewater Substances 0.000 claims description 32
- 239000000446 fuel Substances 0.000 claims description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 18
- 239000005416 organic matter Substances 0.000 claims description 12
- 239000010815 organic waste Substances 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 230000014759 maintenance of location Effects 0.000 claims description 6
- 239000007787 solid Substances 0.000 description 20
- 238000005273 aeration Methods 0.000 description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000029087 digestion Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010336 energy treatment Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010800 human waste Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Treatment Of Sludge (AREA)
- Activated Sludge Processes (AREA)
- Water Treatment By Sorption (AREA)
Description
本発明は上記の実施の形態によって記載したが、この開示の一部をなす論述及び図面はこの発明を限定するものであると理解すべきではない。この開示から当業者には様々な代替実施の形態及び運用技術が明らかとなろう。
2…第1の固液分離槽
3…反応槽
4…第2の固液分離槽
5…前処理装置
6…燃料化装置
7…返送手段
7a…余剰汚泥供給調整器
8…曝気装置
10…制御装置
20…リン回収装置
30…脱水機
40…嫌気性アンモニア酸化処理装置
Claims (8)
- 原水としての有機性排水を生物学的処理により得られる余剰汚泥と水理学的滞留時間5分以下で混合させることと、
前記有機性排水と前記余剰汚泥の混合液を固液分離して分離液と分離汚泥とを得ることと、
前記有機性排水中の有機物を吸着した前記分離汚泥を燃料化することと、
前記分離液に生物学的処理をすることと、
前記生物学的処理で発生する汚泥を前記余剰汚泥として返送することと、
を含む水処理方法。 - 前記生物学的処理で発生する汚泥を前記余剰汚泥として返送することが、原水としての有機性排水に対する前記余剰汚泥の混合比率が1.5[kg−汚泥SS/m3−原水]以下及び/又は3.0[kg−SS/kg−原水CODcr]以下となるように返送することを含む請求項1に記載の水処理方法。
- 酸素濃度DOが0.1mg/L以上で有機性排水と余剰汚泥とを混合させることを更に含む請求項1又は2に記載の水処理方法。
- 前記有機性排水と前記余剰汚泥とを曝気しない条件下で混合させることを含む請求項1又は2に記載の水処理方法。
- 前記余剰汚泥を曝気してから前記有機性排水と前記余剰汚泥とを混合させることを含む請求項1〜4のいずれか1項に記載の水処理方法。
- 前記分離汚泥を燃料化することが、前記分離汚泥を嫌気性消化してメタンガスと消化汚泥とを得ることを含み、
前記消化汚泥の一部を、前記分離液に生物学的処理を行うための反応槽内へ供給することを更に含む請求項1〜5のいずれか1項に記載の水処理方法。 - 原水としての有機性排水を生物学的処理により得られる余剰汚泥と混合させ、水理学的滞留時間5分以下を有するように構成された混合装置と、
前記有機性排水と前記余剰汚泥の混合液を固液分離して分離液と分離汚泥とを得る第1の固液分離槽と、
前記有機性排水中の有機物を吸着した前記分離汚泥を燃料化する燃料化装置と、
前記分離液に生物学的処理をする反応槽と、
前記生物学的処理で発生する汚泥を前記余剰汚泥として返送する返送手段と
を含む水処理装置。 - 前記混合装置が前記第1の固液分離槽内に配置される請求項7に記載の水処理装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015053908 | 2015-03-17 | ||
JP2015053908 | 2015-03-17 | ||
PCT/JP2016/057855 WO2016148086A1 (ja) | 2015-03-17 | 2016-03-11 | 水処理方法及び水処理装置 |
Publications (2)
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JPWO2016148086A1 JPWO2016148086A1 (ja) | 2017-12-28 |
JP6749313B2 true JP6749313B2 (ja) | 2020-09-02 |
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JP2017506536A Active JP6749313B2 (ja) | 2015-03-17 | 2016-03-11 | 水処理方法及び水処理装置 |
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JP (1) | JP6749313B2 (ja) |
WO (1) | WO2016148086A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6934358B2 (ja) * | 2017-08-18 | 2021-09-15 | 水ing株式会社 | 有機性排水の処理装置及び処理方法 |
JP7169067B2 (ja) * | 2017-12-28 | 2022-11-10 | 株式会社東芝 | 水処理装置及び水処理方法 |
JP7088715B2 (ja) * | 2018-03-29 | 2022-06-21 | 高砂熱学工業株式会社 | 排水処理システム及び排水処理方法 |
EP3802434A4 (en) * | 2018-06-05 | 2022-03-09 | Evoqua Water Technologies LLC | COMBINATION OF DISSOLVED AIR FLOTATION AND FIXED FILM BIOREACTOR SOLUTIONS |
JP7157009B2 (ja) * | 2019-06-19 | 2022-10-19 | 株式会社クボタ | 水処理方法及び水処理装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54115561A (en) * | 1978-03-01 | 1979-09-08 | Gadelius Co Ltd | Pressurizing activated sludge method |
JPS56139196A (en) * | 1980-04-01 | 1981-10-30 | Ebara Infilco Co Ltd | Treatment of sludge in decontamination vessel |
AU4895785A (en) * | 1984-10-29 | 1986-05-08 | Vanderbilt University | Wastewater treatment process |
JP3137690B2 (ja) * | 1991-08-31 | 2001-02-26 | 日本アルシー株式会社 | 活性汚泥処理法 |
JPH10263580A (ja) * | 1997-03-21 | 1998-10-06 | Unitika Ltd | 排水処理方法 |
JPH10323685A (ja) * | 1997-05-23 | 1998-12-08 | Shotei Cho | 生物防臭脱臭方法及び余剰汚泥消化減量方法 |
JP3561460B2 (ja) * | 2000-03-10 | 2004-09-02 | フジクリーン工業株式会社 | 畜産排水の汚水処理方法とその装置 |
JP2001300577A (ja) * | 2000-04-27 | 2001-10-30 | Fuji Electric Co Ltd | 汚水処理方法 |
JP2002210487A (ja) * | 2001-01-17 | 2002-07-30 | Kyowa Exeo Corp | バルキング抑制型連続式活性汚泥法 |
JP3672091B2 (ja) * | 2001-12-28 | 2005-07-13 | 株式会社荏原製作所 | 有機性排水の処理方法と装置 |
JP5119200B2 (ja) * | 2009-05-18 | 2013-01-16 | 神鋼環境メンテナンス株式会社 | 下水処理施設の運転方法 |
US9359236B2 (en) * | 2010-08-18 | 2016-06-07 | Evoqua Water Technologies Llc | Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle |
WO2013132612A1 (ja) * | 2012-03-07 | 2013-09-12 | 日本アルシー株式会社 | 活性汚泥処理方法および該方法を用いる既存排水処理設備の改修方法 |
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- 2016-03-11 WO PCT/JP2016/057855 patent/WO2016148086A1/ja active Application Filing
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JPWO2016148086A1 (ja) | 2017-12-28 |
WO2016148086A1 (ja) | 2016-09-22 |
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