JP4572587B2 - 有機性排水の生物処理方法 - Google Patents
有機性排水の生物処理方法 Download PDFInfo
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- JP4572587B2 JP4572587B2 JP2004170121A JP2004170121A JP4572587B2 JP 4572587 B2 JP4572587 B2 JP 4572587B2 JP 2004170121 A JP2004170121 A JP 2004170121A JP 2004170121 A JP2004170121 A JP 2004170121A JP 4572587 B2 JP4572587 B2 JP 4572587B2
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- 238000000034 method Methods 0.000 title claims description 49
- 239000002351 wastewater Substances 0.000 title claims description 27
- 239000010802 sludge Substances 0.000 claims description 135
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 241000894006 Bacteria Species 0.000 claims description 25
- 241001465754 Metazoa Species 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 9
- 239000010815 organic waste Substances 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 230000004931 aggregating effect Effects 0.000 claims description 5
- 230000007281 self degradation Effects 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 238000010525 oxidative degradation reaction Methods 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 8
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- 238000010586 diagram Methods 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
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- 239000012528 membrane Substances 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 239000010865 sewage Substances 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
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- 241000186361 Actinobacteria <class> Species 0.000 description 1
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- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 229910010272 inorganic material Inorganic materials 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
-
- 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
- Y02W10/20—Sludge processing
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- Activated Sludge Processes (AREA)
- Treatment Of Sludge (AREA)
Description
図1に示す如く、容量が3.6Lの第1生物処理槽(活性汚泥槽(汚泥返送なし))1と、容量が15Lの第2生物処理槽(活性汚泥槽)2と、沈殿槽3と、容量が4Lの第3生物処理槽4とを連結させた実験装置を用いて、本発明による有機性排水(BOD630mg/L)の処理を22L/dの割合にて行った。各生物処理槽1,2,4のpHはいずれも6.8に調整した。第1生物処理槽1に対する溶解性BOD容積負荷は3.85kg−BOD/m3/dでHRT4h、第2生物処理槽2への溶解性BOD汚泥負荷は0.022kg−BOD/kg−MLSS/dでHRT17h、全体でのBOD容積負荷は0.75kg−BOD/m3/dでHRT21hの条件で運転した。
実施例1と同様の実験装置を用いて実施例1と同一の有機性排水(BOD630mg/L)の処理を行った。なお、生物処理槽1,2のpHは6.8に調整し、第3生物処理槽4のpHは5.0とした。第1,第2生物処理槽1,2内のSSは5000mg/Lである。その他の条件は、実施例1におけると同様である。
図3に示す如く、容量15Lの生物処理槽(活性汚泥槽)2’と沈殿槽3とからなる実験装置を用いて、有機性排水(BOD630mg/L)の処理を18L/dの割合で行った。余剰汚泥排出量は250mL/dであり、生物処理槽2’の溶解性BOD容積負荷は0.76kg−BOD/m3/dで、HRT20h、pH6.8の条件で4ヶ月間連続運転したところ、処理水は良好であったものの、汚泥転換率は0.40kg−MLSS/kg−BODとなった。
図4に示す如く、第3生物処理槽4を省略した以外は実施例1と同様の実験装置を用いて、実施例1と同様に有機性排水(BOD630mg/L)の処理を22L/dの割合で行った。余剰汚泥排出量は250mL/dであり、各槽のpH条件、負荷条件等は実施例1におけると同様である。
2 第2生物処理槽
3 沈殿槽
4 第3生物処理槽
5 脱水機
Claims (3)
- 有機性排水を第1生物処理槽に導入して、pHを6以上、BOD容積負荷を1kg/m 3 /d以上、HRT(原水滞留時間)を24h以下で活性汚泥処理して非凝集性細菌が優占化した処理液を得、
該第1生物処理槽からの非凝集性細菌が優占化した処理液を第2生物処理槽に導入して、pH6以下、溶解性BODによる汚泥負荷0.1kg−BOD/kg−MLSS/d以下で活性汚泥処理して残存している有機成分の酸化分解、非凝集性細菌の自己分解及び、少なくともSSの10%以上を占める微小動物による捕食による汚泥の減量化を行い、
第2生物処理槽からの処理液を固液分離処理して汚泥と処理水とに分離し、この汚泥の一部を第2生物処理槽へ返送する生物処理方法において、
該第2生物処理槽内の汚泥の一部、及び/又は、前記固液分離処理後の汚泥の残部を第3生物処理槽に導入して好気処理した後、好気処理した汚泥の一部又は全部を脱水して固形分と水分とに分離し、固形分を余剰汚泥として引き抜き、水分を前記第1生物処理槽及び/又は第2生物処理槽に返送することを特徴とする有機性排水の生物処理方法。 - 請求項1において、前記第3生物処理槽のpHを6以下とすることを特徴とする有機性排水の生物処理方法。
- 請求項1又は2において、前記第2生物処理槽及び第3生物処理槽のSRT(汚泥滞留時間)を40日以下とすることを特徴とする有機性排水の生物処理方法。
Priority Applications (20)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004170121A JP4572587B2 (ja) | 2004-06-08 | 2004-06-08 | 有機性排水の生物処理方法 |
KR1020117026711A KR101162474B1 (ko) | 2004-02-02 | 2005-01-25 | 유기성 배수의 생물 처리 방법 및 장치 |
KR1020117026709A KR101190400B1 (ko) | 2004-02-02 | 2005-01-25 | 유기성 배수의 생물 처리 방법 및 장치 |
AU2005209522A AU2005209522B2 (en) | 2004-02-02 | 2005-01-25 | Process for biological treatment of organic waste water and apparatus therefor |
CN2008101757973A CN101456645B (zh) | 2004-02-02 | 2005-01-25 | 有机性排水的生物处理方法及装置 |
KR1020117026714A KR20110139312A (ko) | 2004-02-02 | 2005-01-25 | 유기성 배수의 생물 처리 방법 및 장치 |
EP20120152091 EP2447222A3 (en) | 2004-02-02 | 2005-01-25 | Process for biological treatment of organic waste water and apparatus therefor |
EP20120152096 EP2447223A3 (en) | 2004-02-02 | 2005-01-25 | Process for biological treatment of organic waste water and apparatus therefor |
CN2008101316311A CN101328001B (zh) | 2004-02-02 | 2005-01-25 | 有机性排水的生物处理方法及装置 |
CN2005800038510A CN1914122B (zh) | 2004-02-02 | 2005-01-25 | 有机性排水的生物处理方法 |
KR20067016491A KR101170571B1 (ko) | 2004-02-02 | 2005-01-25 | 유기성 배수의 생물 처리 방법 및 장치 |
PCT/JP2005/000891 WO2005073134A1 (ja) | 2004-02-02 | 2005-01-25 | 有機性排水の生物処理方法及び装置 |
EP05719056A EP1712525A4 (en) | 2004-02-02 | 2005-01-25 | PROCESS FOR THE BIOLOGICAL TREATMENT OF ORGANIC WASTEWATER AND APPARATUS THEREFOR |
KR1020117026716A KR101215912B1 (ko) | 2004-02-02 | 2005-01-25 | 유기성 배수의 생물 처리 방법 및 장치 |
TW100137145A TW201204645A (en) | 2004-02-02 | 2005-02-01 | Process for biological treatment of organic waste water and apparatus therefor |
TW100137149A TW201204648A (en) | 2004-02-02 | 2005-02-01 | Process for biological treatment of organic waste water and apparatus therefor |
TW94103098A TW200528403A (en) | 2004-02-02 | 2005-02-01 | Process for biological treatment of organic waste water and apparatus therefor |
TW100137147A TW201204647A (en) | 2004-02-02 | 2005-02-01 | Process for biological treatment of organic waste water and apparatus therefor |
TW100137146A TW201204646A (en) | 2004-02-02 | 2005-02-01 | Process for biological treatment of organic waste water and apparatus therefor |
US11/485,429 US7332084B2 (en) | 2004-02-02 | 2006-07-13 | Process for biological treatment of organic wastewater and apparatus therefor |
Applications Claiming Priority (1)
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JP2004170121A JP4572587B2 (ja) | 2004-06-08 | 2004-06-08 | 有機性排水の生物処理方法 |
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JP2005349252A JP2005349252A (ja) | 2005-12-22 |
JP4572587B2 true JP4572587B2 (ja) | 2010-11-04 |
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JP2004170121A Expired - Fee Related JP4572587B2 (ja) | 2004-02-02 | 2004-06-08 | 有機性排水の生物処理方法 |
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Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4892917B2 (ja) * | 2005-10-12 | 2012-03-07 | 栗田工業株式会社 | 有機性排水の生物処理方法および装置 |
KR101233545B1 (ko) * | 2006-02-03 | 2013-02-14 | 쿠리타 고교 가부시키가이샤 | 유기성 폐수의 생물 처리 방법 |
AU2006342924A1 (en) * | 2006-04-28 | 2007-11-08 | Kurita Water Industries Ltd. | Method and apparatus for biologically treating organic discharged water |
JP5103796B2 (ja) * | 2006-06-09 | 2012-12-19 | 栗田工業株式会社 | 廃水の生物処理促進剤およびそれを用いた廃水の生物処理方法 |
JP5186420B2 (ja) * | 2009-03-12 | 2013-04-17 | 日鉄住金環境株式会社 | 排水の処理方法及び排水処理装置 |
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 |
JP7282920B2 (ja) * | 2019-12-23 | 2023-05-29 | 株式会社東芝 | 排水処理システムおよび排水処理方法 |
JP7181250B2 (ja) * | 2020-05-19 | 2022-11-30 | 水ing株式会社 | 有機性廃水の処理方法及び有機性廃水の処理装置 |
JP7181251B2 (ja) * | 2020-05-19 | 2022-11-30 | 水ing株式会社 | 有機性廃水の処理方法及び有機性廃水の処理装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3493783B2 (ja) * | 1995-02-14 | 2004-02-03 | 栗田工業株式会社 | 有機性排液の好気性処理方法 |
JP3048889B2 (ja) * | 1995-06-29 | 2000-06-05 | 神鋼パンテツク株式会社 | 活性汚泥処理方法及びそのための活性汚泥処理装置 |
JP3893654B2 (ja) * | 1997-01-08 | 2007-03-14 | 栗田工業株式会社 | 有機性排水の処理方法 |
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