JPWO2015137300A1 - 排水処理方法 - Google Patents
排水処理方法 Download PDFInfo
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- JPWO2015137300A1 JPWO2015137300A1 JP2016507742A JP2016507742A JPWO2015137300A1 JP WO2015137300 A1 JPWO2015137300 A1 JP WO2015137300A1 JP 2016507742 A JP2016507742 A JP 2016507742A JP 2016507742 A JP2016507742 A JP 2016507742A JP WO2015137300 A1 JPWO2015137300 A1 JP WO2015137300A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/28—Magnetic plugs and dipsticks
- B03C1/286—Magnetic plugs and dipsticks disposed at the inner circumference of a recipient, e.g. magnetic drain bolt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
- B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
- B03C1/0332—Component parts; Auxiliary operations characterised by the magnetic circuit using permanent magnets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
- B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
- B03C1/0335—Component parts; Auxiliary operations characterised by the magnetic circuit using coils
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/18—Magnetic separation whereby the particles are suspended in a liquid
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
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- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Activated Sludge Processes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
図1に示した構成の排水処理装置であって、その処理槽1として5L容、その磁気分離手段4として図3に示す形態のドラム型のものを備えた排水処理装置を用いて、排水処理試験を行った。模擬下水として、1Lの水道水に対してグルコース0.7g、でんぷん0.7g、ポリペプトン0.7gを溶解させた高濃度模擬排水(CODcr(化学的酸素要求量):2000mg/L、T―N(全窒素量):100mg/L)を調製し、水温20〜25℃、処理時間48時間(1日当たり2.5L)にて、上記排水処理装置に供して排水処理を行った。処理槽内の曝気は、曝気量5L/分で30分ごとにON/OFFする間欠曝気とした。バチルス属に属する微生物を優占化させるため、運転開始時の処理槽1内の被処理水には、Bacillus subtilis NBRC101239株を食堂排水(CODcr(化学的酸素要求量):200mg/L)で純粋培養して得た菌体を、濃度1000mg/mLとなるように添加した。なお、食堂排水で培養して得た菌体1mg中には菌数およそ1×106個〜7×107個が存在した。また、磁性粉タンク2には磁性粉として水に分散させたマグネタイト(粒径:およそ0.5〜4.0μm、保磁力:およそ1×105/4π〜2×105/4πA/m)を配し、試験終了時の最終の処理槽1内の被処理水中の活性汚泥有機性浮遊物(MLVSS)の濃度(mg/L)の1に対する磁性粉の濃度(mg/L)の比がおよそ1:1となるように、処理槽1内の被処理水に適時に適量供給した。
試験例1の実施例1において、そのバチルス属に属する微生物に代えて、ジオバチルス属に属する微生物としてGeobacillus stearothermophilus NBRC12550株を用い、それを食堂排水(CODcr(化学的酸素要求量):200mg/L)で純粋培養して得た菌体を濃度1000mg/mLとなるように運転開始時の処理槽1内の被処理水に添加した以外は、試験例1の実施例1と同様にして、実施例2の排水処理試験を行った。なお、食堂排水で培養して得た菌体1mg中には菌数およそ3×106個〜2×107個が存在した。
2:磁性粉タンク
3:バチルス属又はジオバチルス属に属する微生物を優占化させるための装置(微量栄養塩タンク)
4,41,42,43,44,45:磁気分離手段
5:流路
6:回転盤
7,9,11:スクレーパー
8:回転ドラム
10:電磁石
12:排出管
13:返送管
14:磁気発生ドラム
15:三方弁
16:磁気発生モジュール
17:流量計
18:有機物濃度測定器
19:MLSS濃度測定器
Claims (9)
- 有機物を含む排水を処理槽に導入し、その排水を処理槽内での活性汚泥により生物処理する排水処理方法であって、前記処理槽内の被処理水に磁性粉を添加するとともに微生物叢としてバチルス属又はジオバチルス属に属する微生物を優占化させ、前記微生物に必要な微量栄養塩を前記処理槽に導入する排水の有機物濃度(mg/L)及び流入量、又は前記排水の流入量に比例した添加量で添加するとともに、生物処理後の処理後水に磁気を作用させて、その磁力により前記処理後水から前記磁性粉と該磁性粉が結合した汚泥を固液分離し、固液分離した前記磁性粉と該磁性粉が結合した汚泥の全部又は一部を前記処理槽内に戻すことを特徴とする排水処理方法。
- 有機物を含む排水を処理槽に導入し、その排水を処理槽内での活性汚泥により生物処理する排水処理方法であって、前記処理槽内の被処理水に磁性粉を添加するとともに微生物叢としてバチルス属又はジオバチルス属に属する微生物を優占化させ、定常運転に達した以降は、前記処理槽内の被処理水中の活性汚泥浮遊物(MLSS)の濃度(mg/L)が定常状態から所定の変化率を超えて増加した場合に限り、前記微生物に必要な微量栄養塩の添加を開始し、前記処理槽内の被処理水中の活性汚泥浮遊物(MLSS)の濃度(mg/L)が再び定常状態となるか又は減少し始めるまで、前記微量栄養塩の添加を続けるとともに、生物処理後の処理後水に磁気を作用させて、その磁力により前記処理後水から前記磁性粉と該磁性粉が結合した汚泥を固液分離し、固液分離した前記磁性粉と該磁性粉が結合した汚泥の全部又は一部を前記処理槽内に戻すことを特徴とする排水処理方法。
- 有機物容積負荷(kg/m3・日)が1.0以上1.5以下となるように、前記有機物を含む排水を前記処理槽に導入する請求項1又は2記載の排水処理方法。
- 定常運転に達した以降は、前記処理槽内の被処理水中の活性汚泥浮遊物(MLSS)の濃度(mg/L)が8000以上30000未満となるように運転を行う請求項1〜3のいずれか1つに記載の排水処理方法。
- 前記処理槽内の被処理水中の活性汚泥浮遊物質(MLSS)の濃度(mg/L)が30000以上を超えて増加した場合に限り、前記磁性粉と該磁性粉が結合した汚泥を系外に引抜き、前記処理槽内の被処理水中の活性汚泥浮遊物質(MLSS)の濃度(mg/L)が30000未満となるように運転を行う請求項1〜4のいずれか1つに記載の排水処理方法。
- 前記磁性粉と該磁性粉が結合した汚泥の全部又は一部の前記処理槽内への返送速度を、前記処理槽内の被処理水中の活性汚泥浮遊物(MLSS)の濃度(mg/L)に応じて、段階的に増減させて運転を行う請求項1〜5のいずれか1つに記載の排水処理方法。
- 前記処理槽内の被処理水中の活性汚泥有機性浮遊物(MLVSS)の濃度(mg/L)の1に対する前記磁性粉の濃度(mg/L)の比が0.2以上3以下となるように、前記磁性粉を添加する請求項1〜6のいずれか1つに記載の排水処理方法。
- 前記バチルス属又はジオバチルス属に属する微生物が、Bacillus circulans、Bacillus coagulans、Bacillus lentus、Bacillus licheniformis、Bacillus megaterium、Bacillus subtilis、Geobacillus stearothermophilus、Geobacillus thermoglucosidasius、Geobacillus toebii、及びGeobacillus zalihaeからなる群から選ばれた1種又は2種以上である請求項1〜7のいずれか1つに記載の排水処理方法。
- 前記磁性粉が鉄を含み、前記微量栄養塩が鉄を含まない請求項1〜8記載の排水処理方法。
Applications Claiming Priority (3)
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JP2014051084 | 2014-03-14 | ||
JP2014051084 | 2014-03-14 | ||
PCT/JP2015/056921 WO2015137300A1 (ja) | 2014-03-14 | 2015-03-10 | 排水処理方法 |
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JP6091039B2 JP6091039B2 (ja) | 2017-03-08 |
JPWO2015137300A1 true JPWO2015137300A1 (ja) | 2017-04-06 |
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JP (1) | JP6091039B2 (ja) |
CN (1) | CN105960380B (ja) |
WO (1) | WO2015137300A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6663254B2 (ja) * | 2016-03-08 | 2020-03-11 | 富士電機株式会社 | 排液処理装置および排液処理方法 |
JP6188864B1 (ja) * | 2016-05-09 | 2017-08-30 | 富士電機株式会社 | 排水処理方法、排水処理装置、及び排水処理用の活性剤 |
KR20200052821A (ko) * | 2018-11-07 | 2020-05-15 | 가부시키가이샤 쿄교쿠엔지니어링 | 하수처리 시스템 |
JP7350886B2 (ja) * | 2019-12-13 | 2023-09-26 | 株式会社東芝 | 水処理装置 |
CN111333176A (zh) * | 2020-03-18 | 2020-06-26 | 国合恒新环保江苏有限公司 | 一种磁泥污水处理工艺 |
CN115870087B (zh) * | 2022-12-13 | 2024-05-14 | 攀钢集团攀枝花钢铁研究院有限公司 | 一种微生物絮凝-磁浮联合回收微细粒级钛铁矿的方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6359759B2 (ja) * | 1981-02-13 | 1988-11-21 | ||
JPH08252594A (ja) * | 1995-03-16 | 1996-10-01 | Ishikawajima Harima Heavy Ind Co Ltd | 硝化脱窒装置 |
JPH11244886A (ja) * | 1998-02-27 | 1999-09-14 | Ishikawajima Harima Heavy Ind Co Ltd | 廃水中の重油分を分解する方法及び装置 |
JP2002263684A (ja) * | 2001-03-13 | 2002-09-17 | Hiromi Ikechi | 微生物による廃水の処理方法及び装置 |
JP2004275960A (ja) * | 2003-03-18 | 2004-10-07 | Matsushita Electric Ind Co Ltd | 有機性排水の処理方法 |
WO2011136188A1 (ja) * | 2010-04-26 | 2011-11-03 | Irie Ryozo | 排水処理方法、システムおよび汚濁物分解活性測定方法 |
-
2015
- 2015-03-10 JP JP2016507742A patent/JP6091039B2/ja not_active Expired - Fee Related
- 2015-03-10 WO PCT/JP2015/056921 patent/WO2015137300A1/ja active Application Filing
- 2015-03-10 CN CN201580007027.6A patent/CN105960380B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6359759B2 (ja) * | 1981-02-13 | 1988-11-21 | ||
JPH08252594A (ja) * | 1995-03-16 | 1996-10-01 | Ishikawajima Harima Heavy Ind Co Ltd | 硝化脱窒装置 |
JPH11244886A (ja) * | 1998-02-27 | 1999-09-14 | Ishikawajima Harima Heavy Ind Co Ltd | 廃水中の重油分を分解する方法及び装置 |
JP2002263684A (ja) * | 2001-03-13 | 2002-09-17 | Hiromi Ikechi | 微生物による廃水の処理方法及び装置 |
JP2004275960A (ja) * | 2003-03-18 | 2004-10-07 | Matsushita Electric Ind Co Ltd | 有機性排水の処理方法 |
WO2011136188A1 (ja) * | 2010-04-26 | 2011-11-03 | Irie Ryozo | 排水処理方法、システムおよび汚濁物分解活性測定方法 |
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JP6091039B2 (ja) | 2017-03-08 |
WO2015137300A1 (ja) | 2015-09-17 |
CN105960380A (zh) | 2016-09-21 |
CN105960380B (zh) | 2019-07-23 |
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