- Volume 24 Issue 1
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Reduction of bacterial regrowth in treated water by minimizing water stagnation in the filtrate line of a gravity-driven membrane system
Yi, JongChan;Lee, Jonghun;Jung, Hyejin;Park, Pyung-Kyu;Noh, Soo Hong
- Received : 2018.01.25
- Accepted : 2018.05.03
- Published : 2019.03.31
This study monitored changes in the level of heterotrophic bacteria in the filtrate and investigated the effect of stagnant water on it, using a batch-operated, gravity-driven membrane system for household water treatment. The filtration test was carried out in the presence and absence of stagnant water in the filtrate line. The results showed that stagnant water accelerated the heterotrophic bacteria levels, measured by heterotrophic plate count, even though the heterotrophic plate count of the filtrate finally increased up to
Bacterial growth;Gravity-driven membrane (GDM);Heterotrophic plate count;Household water treatment (HWT)
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Supported by : National Research Foundation of Korea (NRF), Korea Institute of Energy Technology Evaluation and Planning (KETEP)