Journal of Korean Society on Water Environment (한국물환경학회지)
- Volume 18 Issue 2
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- Pages.159-168
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- 2002
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- 2289-0971(pISSN)
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- 2289-098X(eISSN)
Accumulation of Food Wastes Liquid Fertilizer using Reverse Osmosis Membrane System
역삼투막을 이용한 음식폐기물 액비의 농축
- Cha, Gi-Cheol (Division of Environmental Engineering, Yonsei University) ;
- Hwang, Myoung-Goo (Division of Environmental Engineering, Yonsei University) ;
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Lee, Myung-Gyu
(Department of Environmental Engineering, Sangji University) ;
- Tae, Min-Ho (TAO corporation)
- Published : 2002.06.30
Abstract
A lab-scale Reverse Osmosis(RO) membrane reactor was installed to investigate the membrane permeability, characteristics of membrane fouling at each conditions, and performance of elimination at different trans-membrane pressure(TMP) in the liquid fertilizer accumulated system. Experimental setup was divided to three different TMP conditions. As a result of experiment, permeability of RO membrane was proportional to the increase of TMP and temperature. After experiment was completed, two types chemical cleaning(remove the organic foulant and inorganic foulant) was done, and recover rate of permeability was each 99.8, 99.7 and 99.7%, respectively. From this experimental data, membrane fouling could be determined that the most of it was recoverable in this system, and major reason of fouling was concentration polarization. Elimination rate of solute substance in the liquid fertilizer indicated very stable(above 99%), except ammonia nitrogen, and the most stable elimination rate was investigated at the highest TMP condition (Run 3).