JP2017192934A5 - - Google Patents
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- JP2017192934A5 JP2017192934A5 JP2017075739A JP2017075739A JP2017192934A5 JP 2017192934 A5 JP2017192934 A5 JP 2017192934A5 JP 2017075739 A JP2017075739 A JP 2017075739A JP 2017075739 A JP2017075739 A JP 2017075739A JP 2017192934 A5 JP2017192934 A5 JP 2017192934A5
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- JP
- Japan
- Prior art keywords
- nitrification tank
- divided
- value
- predetermined value
- controlled
- Prior art date
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 claims 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
また本発明は、前記硝化槽を機能的に複数に分割し、分割した硝化槽前半部分で、測定したアンモニア濃度に応じて硝化槽前半部分への酸素含有気体供給量を制御すると共に、DO値が所定値以下になるように制御し、一方、分割した硝化槽後半部分で、DO値が前記所定値以上になるように制御して硝化槽前半部分に残留したNH4-NをNOX-Nに硝化することを特徴としている。これによって、放流水のNH4-N+NOX-N値を小さくでき、さらに良好な窒素除去を達成することができる。
Claims (1)
- 請求項６に記載の廃水処理方法において、
前記硝化槽を機能的に複数に分割し、
分割した硝化槽前半部分で、測定したアンモニア濃度に応じて硝化槽前半部分への酸素含有気体供給量を制御すると共に、DO値が所定値以下になるように制御し、
一方、分割した硝化槽後半部分で、DO値が前記所定値以上になるように制御して硝化槽前半部分に残留したNH4-NをNOX-Nに硝化することを特徴とする廃水処理方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016083735 | 2016-04-19 | ||
| JP2016083735 | 2016-04-19 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020072323A Division JP6862594B2 (ja) | 2016-04-19 | 2020-04-14 | 廃水処理方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2017192934A JP2017192934A (ja) | 2017-10-26 |
| JP2017192934A5 true JP2017192934A5 (ja) | 2019-04-25 |
| JP6894278B2 JP6894278B2 (ja) | 2021-06-30 |
Family
ID=60154543
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017075739A Active JP6894278B2 (ja) | 2016-04-19 | 2017-04-06 | 廃水処理方法 |
| JP2020072323A Active JP6862594B2 (ja) | 2016-04-19 | 2020-04-14 | 廃水処理方法 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020072323A Active JP6862594B2 (ja) | 2016-04-19 | 2020-04-14 | 廃水処理方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (2) | JP6894278B2 (ja) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7119568B2 (ja) * | 2018-05-23 | 2022-08-17 | 王子ホールディングス株式会社 | 水処理装置および水処理方法 |
| JP7008007B2 (ja) * | 2018-10-01 | 2022-01-25 | 水ｉｎｇ株式会社 | ステップ流入式多段硝化脱窒法及びシステム |
| KR20200052821A (ko) | 2018-11-07 | 2020-05-15 | 가부시키가이샤 쿄교쿠엔지니어링 | 하수처리 시스템 |
| CN111551609A (zh) * | 2019-02-11 | 2020-08-18 | 山东东润仪表科技股份有限公司 | 一种基于多参数补偿的抗干扰型氨氮传感器 |
| CN110231376A (zh) * | 2019-05-24 | 2019-09-13 | 嘉兴道一传感科技有限公司 | 一种氨氮水质监测传感器及其检测方法 |
| CN110510815B (zh) * | 2019-08-27 | 2022-07-22 | 危杏 | 基于同时硝化反硝化的一体化污水处理装置及污水处理方法 |
| JP7421453B2 (ja) * | 2020-09-15 | 2024-01-24 | 日立造船株式会社 | 硝化脱窒装置 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5992096A (ja) * | 1982-11-19 | 1984-05-28 | Fuji Electric Co Ltd | 廃水の生物学的硝化法 |
| JP3649632B2 (ja) * | 1999-11-15 | 2005-05-18 | 三菱重工業株式会社 | 生物学的窒素除去方法 |
| JP2001259689A (ja) * | 2000-03-23 | 2001-09-25 | Sumitomo Heavy Ind Ltd | 排水処理装置および方法 |
| JP4789113B2 (ja) * | 2006-03-01 | 2011-10-12 | 三菱重工環境・化学エンジニアリング株式会社 | 家畜糞尿処理システム及び方法 |
| JP2008221161A (ja) * | 2007-03-14 | 2008-09-25 | Kobelco Eco-Solutions Co Ltd | 脱窒処理装置および脱窒処理方法 |
| JP5144829B1 (ja) * | 2012-07-23 | 2013-02-13 | 株式会社堀場製作所 | イオン電極 |
| JP6334244B2 (ja) * | 2014-04-28 | 2018-05-30 | 株式会社日立製作所 | 水処理プロセス制御システム |
-
2017
- 2017-04-06 JP JP2017075739A patent/JP6894278B2/ja active Active
-
2020
- 2020-04-14 JP JP2020072323A patent/JP6862594B2/ja active Active
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