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Microcapsule을 이용한 해면 유출유의 생물학적 제거에 대한 실험적 model
차시환 ( Shi-whan Cha ),권창오 ( Chang-oh Kweon ),김용욱 ( Yong-wook Kim ) 한국물환경학회 1995 한국물환경학회지 Vol.11 No.1
Biodegradation of cruide oil at sea surface is limited with nutrients concentration. The limiting factors of cruide oil biodegradation in natural seawater have responsed to the addition of the nitrogen and phosphorus. Nutrients consisting of the ratio of 10 part ammonium chloride and 1 part of potassium phosphate were encapsuled with waxes (n-paraffin and bees wax as the wall materials). We confirm the biodegradation is enhanced by the addition of microcapsules. The amount of liquid transported after the infinite time expressed in terms of the im proved microcapsule weight is about 14.2%. The diffusivity of the internal water is express ed in terms of the concentration of liquid by The removed model oil by pseudomonas sp. was measured with different supply modes of microcapsules. 95% removal of the model oil (n-hexadecane) was observed in 10days.
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Polyvinyl alcohol 함유 폐수의 전해처리에 관한 연구
김운수,차시환,김용욱 ( Woon Soo Kim,Si Hwan Cha,Yong Wook Kim ) 한국물환경학회 1993 한국물환경학회지 Vol.9 No.1
The purpose of this study is to investigate into the electrolytic treatment of polyvinyl alcohol wastewater. In order to remove PVA from wastewater by electrolytic treatment. Fe electrode was used as a soluble electrode for this study. The results are summarized as follows : 1. PVA was removed nearly to 100% as the value of ampere hour concentration was more than 0.5 Ahr/ℓ. 2. Regardless of the initial pH of wastewater, the pH of wastewater after electrolytic treatment was among 10 and 11. So, it is necessary to neutralize the treated water. 3. PVA was removed quickly as the current density was rised, the electrode distance was approached, NaCl was added and the initial pH of wastewater was above 7.
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電解法에 依한 Polyvinyl Alcohol 含有 廢水處理에 關한 硏究
김운수,차시환,김용욱 慶熙大學校 材料科學技術硏究所 1991 材料科學技術硏究論集 Vol.4 No.-
The purpose of this study is to investigate into the electrolytic treatment of polyvinyl alcohol wastewater. In order to remove PVA from wastewater by electrolytic treatment, Fe electrode was used as a soluble electrode for this study. The results of this sutdy are as follows: 1. PVA was removed nearly to 100% as the value of ampere hour concentration was more than 0.5 Ahr/ℓ. 2. PVA was removed quickly as the current density was rised, the electrode distance was approached, NaCl was added and the initial pH of wastewater was above 7. 3. Regardless of the initial pH of wastewater, the pH of wastewater after electorolytic treatment was among 10 and 11. So, it is necessary to neutralize the treated water.
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