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논문 기본 정보

자료유형
학술저널
저자정보
Chen Shiguang (Zhongkai University of Agriculture and Engineering) Sun Hongwei (Zhongkai University of Agriculture and Engineering) Chen Qiuli (Zhongkai University of Agriculture and Engineering)
저널정보
대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제26권 제6호
발행연도
2021.12
수록면
20 - 28 (9page)

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초록· 키워드

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Rainwater harvesting has become an important strategy to achieve the goal of sustainable development in urban areas. The latest emerged gravity driven micro-filtration technology can effectively reduce turbidity and bacteria to a very low level but still have disadvantages of low removal of dissolved organic substances and low permeate flux. An innovative gravity driven micro-filtration technique using ceramic flat sheet membrane as filter module was established and introduced to the treatment of rainwater that was harvested from a typical official building in GuangZhou, South China. The performance of this process has been evaluated in terms of pollutants (e.g. pH, turbidity, total dissolved solids (TDS), CODcr, NH₃-N, DOC,UV254, total Coliforms and E.coli) removal efficiency, and the permeate flux profiles. Results shows that the removal rates of turbidity, TDS, CODcr, NH₃-N, DOC,UV254, Coliforms and E.coli were 92.2%, 91.9%, 65.5%, 42.6%, 76.9%, 61%, 96.9% and 95.5%, respectively. The GDM system can run continuously for 60 days without back washing, and the permeate flux stabilized at 22~45 L/(m<SUP>2</SUP>·h) under a constant water head of 20 kPa. Experimental results demonstrated that the GDM system employing a ceramic flat membrane can significantly improve the organics removal in rainwater.

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ABSTRACT
1. Introduction
2. Material and Methods
3. Results
4. Discussion
5. Conclusions
References

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