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DOI : 10.17640/KSWST.2016.24.2.53 ,    Vol.24, No.2, 53 ~ 63, 2016
Title
Performance Evaluation of Neo-Hydrofoil Mixer Applied in Wastewater Treatment Plant
주윤식 Yoon-sik Joo , 손건태 Guntae Son , 배영준 Youngjun Bae , 구정은 Joung-eun Gu , 김준영 Junyoung Kim , 이승환 Seunghwan Lee
Abstract
In this study, a newly developed neo-hydrofoil mixer was evaluated in a wastewater treatment plant based on the treatment efficiency and energy saving after the implementation of hydrofoil mixer. Several series of experiments were conducted in a wastewater treatment plant to overcome the production of scums and sludge settling problem. Computational fluid dynamics (CFD) and measurements of MLSS and DO were made with other measuring equipments to optimize the mixing condition. A set of vertical hydrofoil agitators was installed in a wastewater treatment plant with A2O process. After they were replaced with second stage of vertical hydrofoil agitators to pump up mixing power, proper mixing was achieved and more than thirty percent of energy was saved. Evaluation of properties on mixing technology applied to bioreactor processes is proved to be essential to eliminate scum and sludge settling problems and to save power input.
Key Words
Mixing Technology, CFD, Wastewater Treatment, Energy saving, Agitator, A₂O process
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