KR100869058B1 - 고농도 질소함유 산업폐수 처리방법 - Google Patents
고농도 질소함유 산업폐수 처리방법 Download PDFInfo
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- KR100869058B1 KR100869058B1 KR1020080028999A KR20080028999A KR100869058B1 KR 100869058 B1 KR100869058 B1 KR 100869058B1 KR 1020080028999 A KR1020080028999 A KR 1020080028999A KR 20080028999 A KR20080028999 A KR 20080028999A KR 100869058 B1 KR100869058 B1 KR 100869058B1
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Abstract
Description
구분 | 특성 | 배출시설 |
1형 | BOD, TN의 농도가 모두 높고 C/N비가 9~32이며, 자체탈질이 가능한 폐수 예) 석탄화합물제조 BOD 5,632mg/l, TN 595mg/l COD 2,489mg/l, SS 276mg/l BOD/N ratio 9.5 | 석탄화합물 부타디엔계 화학물질 살균/살충제/농업용화학품 화장품 치약 |
2형 | BOD, TN의 농도가 모두 높고 C/N비가 2~6이며, SS제거 목적의 응집침전 처리 시 부수적으로 발생되는 BOD 제거로 인해 자체탈질에 필요한 C/N 비를 유지하지 못하는 폐수 예) 비료제조시설 BOD 809mg/l, TN 376mg/l COD 300mg/l, SS 1,200mg/l BOD/N ratio 2.2 | 비료/질소화합물 비철금속제련/정련/합금 산업용 가스 기초 무기화합물 고무 및 플라스틱 기타 섬유제품 가죽/모피가공/제품 유리/유리제품 석유화학계기초화합물 합성연료유연제/기타착색 합성수지/기타플라스틱 |
3형 | BOD 농도는 낮고 TN 농도가 높으며 C/N 비가 1 미만인 폐수 예) 강관제조시설 BOD 68mg/l, TN 162mg/l COD 94mg/l, SS 95mg/l BOD/N ratio 0.4 | 금속주조 강관제조, 철강압연 등 비철금속제련/정련/합금 동압연압출/연신제품 |
구분 | 유기물 제거 | 유기물제거 + 질산화 |
유입수질(mg/l) | BOD 140, COD 300, SS 70, NH4-N 25 | |
MLVSS(mg/l) | 2,400 | |
F/M(d-1) | 0.33 | 0.16 |
BOD loading(kg/m3) | 0.78 | 0.37 |
SRT(d) | 5.00 | 8.33 |
HRT(hr) | 4.3 | 9.0 |
Claims (5)
- 응집침전 전처리 과정을 거친 폐수를 2계열 구성을 갖는 제올라이트흡착조(1)로 유입하여 하나의 계열이 제올라이트 흡착과정을 통한 NH4-N의 분리를 진행하는 동안 다른 계열은 암모니아 분리와 제올라이트 재생과정을 통한 NH4-N의 탈착과정을 진행하며, 이와 같은 방식을 번갈아가며 반복함으로써 시간의 단락이 없도록 하는 흡·탈착 단계와,상기 제올라이트흡착조(1)의 제올라이트 흡착과정을 통해 암모니아가 분리된 폐수를 연속회분식반응조(3)로 이송하여 HRT 6시간, 1cycle이 360분, DO(mg/L) aerobic 2.0 ~ 6.0, anoxic 0.5이상, pH 7.5 ~ 8.6, 온도 25℃, MLVSS(mg/L) 1618의 조건의 운전모드 1 또는 HRT 11시간, 1cycle이 4620분, DO(mg/L) aerobic 2.0 ~ 6.0, anoxic 0.5이상, pH 7.5 ~ 8.6, 온도 25℃, MLVSS(mg/L) 934의 조건의 운전모드 2를 통해 유기물의 제거, 잔류 NH4-N 질산화 및 자체 탈질 과정을 거친 후 방류하는 단계와,상기 연속회분식반응조(3)의 제올라이트 재생과정을 통해 탈착된 NH4-N 함유수를 질산화반응조(2)로 이송하여 질산화미생물에 의해 NO3-N로 전환하는 질산화 단계와,그 질산화반응조(2)에서 질산화가 완료된 폐수를 황산화탈질조(4)로 이송하여 황화합물의 S2 -, S0, S2O3 2-를 황산화미생물에 의해 SO4 -로 산화시켜 다시 제올라이트흡착조(1)로 반송하여 제올라이트 재생에 필요한 공급수로 순환시키는 황산화탈질 단계로 이루어짐을 특징으로 하는 고농도 질소함유 산업폐수 처리방법.
- 삭제
- 제 1항에 있어서, 질산화단계의 질산화미생물은 니트로소모나스(Nitrosomonas), 니트로박터(Nitrobacter)로서, 암모니아성 질소가 니트로소모나스(Nitrosomonas)에 의해 아질산성 질소로 전환되고, 그 아질산성 질소는 니트로박터(Nitrobacter)에 의해 질산성 질소로 전환되는 것을 특징으로 하는 고농도 질소함유 산업폐수 처리방법.
- 제 1항에 있어서, 연속회분식반응조(3)는 질산화반응조(2)로부터 질산화미생물을 공급받을 수 있도록 연결구성되고, 그 연속회분식반응조(3)의 처리수는 황산화탈질조(4)로 유입되도록 연결구성된 것임을 특징으로 하는 고농도 질소함유 산업폐수 처리방법.
- 제 1항에 있어서, 황산화탈질 단계는 황산화탈질조(4)의 온도를 30℃로 유지하고, pH를 7.5 ~ 8.0 유지하여 티오바실러스 데니트리피칸스(Thiobacillus denitrificans) 또는 티오미크로스피라 데니트리피칸스(Thiomicrospira denitrificans) 중 선택되는 어느 1종 또는 2종 이상의 혼합인 황산화미생물을 이 용하는 것임을 특징으로 하는 고농도 질소함유 산업폐수 처리방법.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104710079A (zh) * | 2014-02-20 | 2015-06-17 | 刘冬峰 | 一种应用改性丝光沸石处理城市中水的方法 |
CN107055940A (zh) * | 2017-01-26 | 2017-08-18 | 浙江清华长三角研究院 | 基于短程硝化反硝化的高氨氮污水深度处理工艺 |
CN107986557A (zh) * | 2017-11-17 | 2018-05-04 | 浙江海洋大学 | 一种同步去除农业径流氮磷的耦合生物处理工艺 |
CN109354310A (zh) * | 2018-11-13 | 2019-02-19 | 江苏蓝必盛化工环保股份有限公司 | 一种丙烯酸废水的处理方法 |
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Patent Citations (6)
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JPH1080697A (ja) | 1996-09-06 | 1998-03-31 | Ebara Corp | 有機性汚水の高度処理方法 |
JPH10277543A (ja) | 1997-04-09 | 1998-10-20 | Ngk Insulators Ltd | 窒素含有排水の硝化脱窒方法 |
KR20040044702A (ko) * | 2002-11-21 | 2004-05-31 | 황규대 | 질산화조가 분리된 변형 연속회분식 하폐수 처리장치 및그 방법 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104710079A (zh) * | 2014-02-20 | 2015-06-17 | 刘冬峰 | 一种应用改性丝光沸石处理城市中水的方法 |
CN104710079B (zh) * | 2014-02-20 | 2016-05-25 | 日照轻创知识产权服务中心 | 一种应用改性丝光沸石处理城市中水的方法 |
CN107055940A (zh) * | 2017-01-26 | 2017-08-18 | 浙江清华长三角研究院 | 基于短程硝化反硝化的高氨氮污水深度处理工艺 |
CN107055940B (zh) * | 2017-01-26 | 2019-09-03 | 浙江清华长三角研究院 | 基于短程硝化反硝化的高氨氮污水深度处理工艺 |
CN107986557A (zh) * | 2017-11-17 | 2018-05-04 | 浙江海洋大学 | 一种同步去除农业径流氮磷的耦合生物处理工艺 |
CN107986557B (zh) * | 2017-11-17 | 2020-11-17 | 浙江海洋大学 | 一种同步去除农业径流氮磷的耦合生物处理工艺 |
CN109354310A (zh) * | 2018-11-13 | 2019-02-19 | 江苏蓝必盛化工环保股份有限公司 | 一种丙烯酸废水的处理方法 |
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