하수처리장 고도처리공정에 적용된 네오하이드로포일 교반기의 성능 평가

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.