KR20060056447A - 변성전분 폐수처리 방법 - Google Patents
변성전분 폐수처리 방법 Download PDFInfo
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- KR20060056447A KR20060056447A KR1020040095295A KR20040095295A KR20060056447A KR 20060056447 A KR20060056447 A KR 20060056447A KR 1020040095295 A KR1020040095295 A KR 1020040095295A KR 20040095295 A KR20040095295 A KR 20040095295A KR 20060056447 A KR20060056447 A KR 20060056447A
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- 239000004368 Modified starch Substances 0.000 title claims abstract description 49
- 235000019426 modified starch Nutrition 0.000 title claims abstract description 49
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 16
- 239000002351 wastewater Substances 0.000 claims abstract description 77
- 239000010802 sludge Substances 0.000 claims abstract description 55
- 239000002253 acid Substances 0.000 claims abstract description 37
- 238000000855 fermentation Methods 0.000 claims abstract description 35
- 230000004151 fermentation Effects 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 35
- 229920002472 Starch Polymers 0.000 claims abstract description 34
- 238000005273 aeration Methods 0.000 claims abstract description 34
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- 238000004062 sedimentation Methods 0.000 claims abstract description 25
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- 229960000583 acetic acid Drugs 0.000 claims description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 4
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- 235000019260 propionic acid Nutrition 0.000 claims description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 2
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Classifications
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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
- C02F3/30—Aerobic and anaerobic processes
-
- 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
- C02F3/1205—Particular type of activated sludge processes
- C02F3/121—Multistep treatment
-
- 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
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
Claims (6)
- 변성전분 폐수의 처리방법에 있어서,공급되는 약산의 고농도 변성전분 폐수의 유량 및 수질을 균등화시키기 위해 1차적으로 폐수를 집수시키고, 혐기조건으로 유지하여 외부 잉여 혐기 슬러지 또는 산발효 폐수를 투입하여 가수분해의 촉진과 변성전분 폐수의 농도를 희석하는 집수조 단계와;상기 집수조를 거친 변성전분 폐수 유출수를 연속적으로 공급받고, 계 외부 잉여 활성슬러지를 지속적으로 일정량을 유입시켜 계 외부의 활성슬러지와 자체 증식 활성슬러지로 인해 고농도의 활성슬러지를 유지시켜 폐수의 pH를 알칼리성으로 만드는 1차 포기조 단계와;상기 1차 포기조에서 처리된 폐수를 공급받아 활성슬러지와 폐수를 비중차로 분리하는 1차침전조단계와;상기 단계를 거친 소량의 알칼리성 고농도 변성전분 폐수와, 추가로 투입되는 산성의 대량의 저농도 전분당종합폐수를 혼합하여 균일한 pH로 조정하는 종합집수조단계와;상기 종합집수조에서 균일화된 혼합폐수 중의 고분자 유기물을 통성미생물로서 가수분해(Hydrolysis)와 산발효(Acid fermantation)시켜 유기산(Acetic acid, propionic acid, 등)을 생성시키는 산발효조단계와;상기 단계 후 산성화조인 산발효조에서 생성된 폐수 중의 유기산이 메탄박테 리아에 의해 가스화(Bio-gas)되는 혐기소화조단계와;상기 단계 후 호기성 미생물을 이용하여 폐수 중 잔류되어 있는 오염물질을 환경기준치 이내로 처리하는 2차포기조단계와;상기 단계 후 2차포기조의 혼합액을 폐수와 슬러지로 분리하여 상등수는 최종 방류하며 침강된 슬러지는 별도 분리하는 2차침전조단계로 구성하여 변성전분 폐수를 처리토록 구성하되,상기 산발효조의 또는 혐기소화조는 집수조의 변성전분 폐수의 적절한 희석과 잔류되어 있는 전분입자(SS)와 빙초산 제거를 위하여 산발효조의 산발효 폐수 또는 혐기소화조의 잉여혐기슬러지 일부를 집수조로 다시 귀환하도록 구성되고,상기 1차 포기조에는 일정한 농도의 활성오니가 지속적으로 유지되도록 1차침전조의 침강슬러지 일부와 2차 침전조의 침강슬러지 전량이 귀환하도록 구성함으로써 수용성 변성전분의 흡착과 분해가 동시에 이루어 지도록 한 공정을 특징으로 하는 변성전분 폐수처리 방법.
- 제 1항에 있어서,상기 집수조에 공급되는 변성전분 폐수는 pH가 4-5인 소량의 고농도 폐수(CODcr 8,000 ~ 20,000 mg/L)이고, 종합집수조에는 공급되는 전분당종합폐수는 pH가 3-4인 대량의 저농도(CODcr 3,000 mg/L)인 것을 특징으로 하는 변성전분 폐수처리 방법.
- 제 1항에 있어서,상기 1차침전조단계에서 침강된 슬러지는 침전조의 하부에서 펌프로 인출하여, 인출된 슬러지의 일부는 1차포기조로 재순환되고 그 나머지는 농축조로 이송되어 최종적으로 탈수기에 의해 탈수되도록 함으로써 폐수처리장에서 발생하는 모든 활성오니가 1차포기조를 거쳐 수용성 전분을 흡착 또는 분해 후 1차침전지를 경유하여 유출되는 것을 특징으로 하는 변성전분 폐수처리 방법.
- 제 1항에 있어서,상기 1차 포기조는 pH가 생물학적(현탁미생물, 고정상 미생물)인 작용에 의해 수시간만에 최대 pH 9.5 내지 중성까지 상승하도록 구성하고, 이러한 pH의 상승속도를 주입하는 공기량으로 제어하도록 구성한 것을 특징으로 하는 변성전분 폐수처리 방법.
- 제 1항에 있어서,상기 산발효조단계의 최적 반응 pH 조건인 6 부근을 만족하기 위하여 상기 1차 포기조에서 생물학적인 반응에 의해 약알칼리성으로 전처리된 변성전분 폐수를 후속공정인 1차침전조(혹은 부상조), 종합집수조를 거쳐 산발효조로 유입시켜 pH를 상승시키는 것을 특징으로 하는 변성전분 폐수처리 방법.
- 제 1항 또는 5항중 어느 한항에 있어서,상기 산발효조단계의 최적 반응 pH 조건인 6 부근을 만족하기 위하여 상기 1차 포기조에서 생물학적인 반응에 의해 약알칼리성으로 전처리된 변성전분 폐수를 후속공정인 1차침전조(혹은 부상조)를 거쳐 종합집수조를 우회한 후 산발효조로 유입시켜 pH를 상승시키는 것을 특징으로 하는 변성전분 폐수처리 방법.
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100973786B1 (ko) * | 2009-10-06 | 2010-08-03 | 우경건설 주식회사 | 염분 함량이 높은 유기성 폐기물의 혐기성 소화 방법 |
CN103159371A (zh) * | 2011-12-09 | 2013-06-19 | 青岛科技大学 | 一种用于变性淀粉生产废水处理的组合工艺 |
KR101288952B1 (ko) * | 2013-05-15 | 2013-07-25 | 주식회사 국제기산 | 미생물을 이용한 하수슬러지 처리시스템 |
CN105036331A (zh) * | 2015-07-06 | 2015-11-11 | 中国电建集团贵阳勘测设计研究院有限公司 | 西北低温地区污水处理方法及其装置 |
CN108840511A (zh) * | 2018-06-12 | 2018-11-20 | 合肥丰洁生物科技有限公司 | 一种用于化妆品生产的废水处理设备 |
CN111302569A (zh) * | 2020-03-27 | 2020-06-19 | 广西绿蕊环保工程有限公司 | 一种木薯淀粉废水处理装置和方法 |
CN114684943A (zh) * | 2022-03-25 | 2022-07-01 | 贵州省印江县依仁食品有限公司 | 一种红薯淀粉加工废水循环处理设备 |
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CN105110553B (zh) * | 2015-08-05 | 2017-03-22 | 山东益源环保科技有限公司 | 一种高浓度淀粉废水的处理方法 |
FR3045594B1 (fr) * | 2015-12-21 | 2018-01-12 | Jua Group | Installation et procede de traitement biologique de dechets et effluents organiques |
Family Cites Families (1)
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KR100327154B1 (ko) * | 2000-10-13 | 2002-03-13 | 박호군 | 바이오메이커를 이용한 고농도 유기성 폐수의 처리 방법 |
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Cited By (8)
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---|---|---|---|---|
KR100973786B1 (ko) * | 2009-10-06 | 2010-08-03 | 우경건설 주식회사 | 염분 함량이 높은 유기성 폐기물의 혐기성 소화 방법 |
CN103159371A (zh) * | 2011-12-09 | 2013-06-19 | 青岛科技大学 | 一种用于变性淀粉生产废水处理的组合工艺 |
KR101288952B1 (ko) * | 2013-05-15 | 2013-07-25 | 주식회사 국제기산 | 미생물을 이용한 하수슬러지 처리시스템 |
CN105036331A (zh) * | 2015-07-06 | 2015-11-11 | 中国电建集团贵阳勘测设计研究院有限公司 | 西北低温地区污水处理方法及其装置 |
CN108840511A (zh) * | 2018-06-12 | 2018-11-20 | 合肥丰洁生物科技有限公司 | 一种用于化妆品生产的废水处理设备 |
CN111302569A (zh) * | 2020-03-27 | 2020-06-19 | 广西绿蕊环保工程有限公司 | 一种木薯淀粉废水处理装置和方法 |
CN114684943A (zh) * | 2022-03-25 | 2022-07-01 | 贵州省印江县依仁食品有限公司 | 一种红薯淀粉加工废水循环处理设备 |
CN114684943B (zh) * | 2022-03-25 | 2023-08-08 | 贵州省印江县依仁食品有限公司 | 一种红薯淀粉加工废水循环处理设备 |
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