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실시간 활성 슬러지 플랜트 제어기를 이용한 산소 섭취율 및 암모늄에 의한 하폐수처리장 최적화, 에너지 소비량 절감 및 방류 규정 준수
김종규 ( Kim Jong Kyu ),여우석 ( Yeo Wooseok ),이재미 ( Lee Jae Mee ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-
Recently, the optimization of wastewater treatment plants (WWTPs) has been getting global attention to achieve sustainable energy and the water cycle. In an activated sludge applied WWTPs, the blower system in the aeration tank accounts for 30-70% of the electricity cost and CO<sub>2</sub> emission. This experiment is conducted to suggest a feasible optimization strategy by controlling blower pressure and dissolved oxygen (DO) setpoints based on the real-time measurement of Oxygen Uptake Rate (OUR) and Ammonium. OUR which represents the total biodegradable load, and ammonium which indicates the level of nitrification can be combined to analyze the optimal setpoints of the blower and the DO levels. Real-time monitoring equipment (Strathkelvin Instruments) was installed in the anoxic zone of Seonam WWTPs for 6 weeks to assess the potential energy and cost savings. The required oxygen level in each zone of aeration lanes is analyzed by OUR and Ammonium values. The result obtained data concluded that 20% of the energy-saving - approximately equivalent to ₩1,720,000,000 per year - is feasible by analyzing the times that the blower pressure can be lowered, for instance, the times that the treatment is completed but the excessive blower is running to supply DO. While designing a control strategy, the OUR value was crucial in determining the DO set points and blower pressure as it helps to confirm whether the treatment is completed or not in real-time. Although many trials to achieve optimization in WWTPs could not result in success in reality ASP-Con proved that its efficiency and practicability. Therefore, the use of OUR in combination with Ammonia and DO is a feasible technique to apply in diverse WWTPs using activated sludge to reduce energy consumption and costs.
실시간 활성 슬러지 플랜트 제어기를 이용한 산소 섭취율 및 암모늄에 의한 하폐수처리장 최적화, 에너지 소비량 절감 및 방류 규정 준수
김종규 ( Kim Jong Kyu ),여우석 ( Yeo Wooseok ),이재미 ( Lee Jae Mee ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-
Recently, the optimization of wastewater treatment plants (WWTPs) has been getting global attention to achieve sustainable energy and the water cycle. In an activated sludge applied WWTPs, the blower system in the aeration tank accounts for 30-70% of the electricity cost and CO<sub>2</sub> emission. This experiment is conducted to suggest a feasible optimization strategy by controlling blower pressure and dissolved oxygen (DO) setpoints based on the real-time measurement of Oxygen Uptake Rate (OUR) and Ammonium. OUR which represents the total biodegradable load, and ammonium which indicates the level of nitrification can be combined to analyze the optimal setpoints of the blower and the DO levels. Real-time monitoring equipment (Strathkelvin Instruments) was installed in the anoxic zone of Seonam WWTPs for 6 weeks to assess the potential energy and cost savings. The required oxygen level in each zone of aeration lanes is analyzed by OUR and Ammonium values. The result obtained data concluded that 20% of the energy-saving - approximately equivalent to ₩1,720,000,000 per year - is feasible by analyzing the times that the blower pressure can be lowered, for instance, the times that the treatment is completed but the excessive blower is running to supply DO. While designing a control strategy, the OUR value was crucial in determining the DO set points and blower pressure as it helps to confirm whether the treatment is completed or not in real-time. Although many trials to achieve optimization in WWTPs could not result in success in reality ASP-Con proved that its efficiency and practicability. Therefore, the use of OUR in combination with Ammonia and DO is a feasible technique to apply in diverse WWTPs using activated sludge to reduce energy consumption and costs.
실시간 활성 슬러지 플랜트 제어기를 이용한 산소 섭취율 및 암모늄에 의한 하폐수처리장 최적화, 에너지 소비량 절감 및 방류 규정 준수
김종규 ( Kim Jong Kyu ),여우석 ( Yeo Wooseok ),이재미 ( Lee Jae Mee ) 한국물환경학회 2020 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2020 No.-
Recently, the optimization of wastewater treatment plants (WWTPs) has been getting global attention to achieve sustainable energy and the water cycle. In an activated sludge applied WWTPs, the blower system in the aeration tank accounts for 30-70% of the electricity cost and CO<sub>2</sub> emission. This experiment is conducted to suggest a feasible optimization strategy by controlling blower pressure and dissolved oxygen (DO) setpoints based on the real-time measurement of Oxygen Uptake Rate (OUR) and Ammonium. OUR which represents the total biodegradable load, and ammonium which indicates the level of nitrification can be combined to analyze the optimal setpoints of the blower and the DO levels. Real-time monitoring equipment (Strathkelvin Instruments) was installed in the anoxic zone of Seonam WWTPs for 6 weeks to assess the potential energy and cost savings. The required oxygen level in each zone of aeration lanes is analyzed by OUR and Ammonium values. The result obtained data concluded that 20% of the energy-saving - approximately equivalent to ₩1,720,000,000 per year - is feasible by analyzing the times that the blower pressure can be lowered, for instance, the times that the treatment is completed but the excessive blower is running to supply DO. While designing a control strategy, the OUR value was crucial in determining the DO set points and blower pressure as it helps to confirm whether the treatment is completed or not in real-time. Although many trials to achieve optimization in WWTPs could not result in success in reality ASP-Con proved that its efficiency and practicability. Therefore, the use of OUR in combination with Ammonia and DO is a feasible technique to apply in diverse WWTPs using activated sludge to reduce energy consumption and costs.