JP6912131B1 - 汚泥減少剤、排水処理装置及び排水処理方法 - Google Patents
汚泥減少剤、排水処理装置及び排水処理方法 Download PDFInfo
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- JP6912131B1 JP6912131B1 JP2020203792A JP2020203792A JP6912131B1 JP 6912131 B1 JP6912131 B1 JP 6912131B1 JP 2020203792 A JP2020203792 A JP 2020203792A JP 2020203792 A JP2020203792 A JP 2020203792A JP 6912131 B1 JP6912131 B1 JP 6912131B1
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- 239000010802 sludge Substances 0.000 title claims abstract description 122
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 48
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 44
- 239000002351 wastewater Substances 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 241000196324 Embryophyta Species 0.000 claims abstract description 26
- 241000227166 Harrimanella hypnoides Species 0.000 claims abstract description 19
- 238000012258 culturing Methods 0.000 claims abstract description 14
- 239000006228 supernatant Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 19
- 238000005273 aeration Methods 0.000 claims description 15
- 238000001556 precipitation Methods 0.000 claims description 4
- 230000001376 precipitating effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000012190 activator Substances 0.000 abstract 1
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- 241000195940 Bryophyta Species 0.000 description 12
- 235000019645 odor Nutrition 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 4
- 235000015097 nutrients Nutrition 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
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- 235000016626 Agrimonia eupatoria Nutrition 0.000 description 2
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- 230000000694 effects Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Treatment Of Biological Wastes In General (AREA)
- Activated Sludge Processes (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
Description
活性汚泥と、水と、苔植物又は水草の少なくともどちらか一方と、を含む液体を培養することによりより得られる活性汚泥減少剤。
前記培養槽は、培養液中に空気を送り込む手段と、前記汚泥減少剤を前記処理槽に供給する供給手段と、を備える。
前記有機性排水を前記処理槽に導入する有機性排水導入工程と、
前記処理槽を曝気して、活性汚泥により有機性排水を生物処理する排水処理工程と、
前記活性汚泥減少剤を、前記培養槽から前記処理槽に添加する汚泥減少剤添加工程と、
活性汚泥を沈殿させる沈殿工程と、
活性汚泥を沈殿させた後の上澄水を処理水として排出する排出工程と、を備える。
処理槽3を曝気して、活性汚泥により有機性排水を生物処理する排水処理工程と、
汚泥減少剤を、培養槽5から処理槽3に添加する汚泥減少剤添加工程と、
活性汚泥を沈殿させる沈殿工程と、
活性汚泥を沈殿させた後の上澄水を処理水として排出する排出工程とを備える。
3 処理槽
5 培養槽
7 導入手段
9 排水手段
11 供給手段
Claims (4)
- 活性汚泥により有機性排水を生物処理する際に添加することにより、前記生物処理時に発生する余剰汚泥を減少させる汚泥減少剤であって、
活性汚泥と、水とを含む液体に、苔植物又は水草の少なくともどちらか一方を加えて好気的な条件下で培養することにより得られ、
前記苔植物及び水草は、根が除かれている、
汚泥減少剤。
- 活性汚泥が貯留し有機性排水を浄化する処理槽と、請求項1に記載の汚泥減少剤を培養する培養槽と、を備える排水処理装置。
- 前記処理槽は、有機性排水の導入手段と、曝気手段と、前記有機性排水を処理した後の処理水を排水する排水手段と、
を備え、
前記培養槽は、培養液中に空気を送り込む手段と、前記汚泥減少剤を前記処理槽に供給する供給手段と、
を備える、
請求項2に記載の排水処理装置。 - 請求項2又は請求項3に記載の排水処理装置を用いる有機性排水の処理方法であって、
前記有機性排水を前記処理槽に導入する有機性排水導入工程と、
前記処理槽を曝気して、活性汚泥により有機性排水を生物処理する排水処理工程と、
請求項1に記載の汚泥減少剤を、前記培養槽から前記処理槽に添加する汚泥減少剤添加工程と、
活性汚泥を沈殿させる沈殿工程と、
活性汚泥を沈殿させた後の上澄水を処理水として排出する排出工程と、
を備える有機性排水の処理方法。
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JP6912131B1 true JP6912131B1 (ja) | 2021-07-28 |
JP2022091073A JP2022091073A (ja) | 2022-06-20 |
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