지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2010.1
- 수록면
- 24 - 28 (5page)
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초록· 키워드
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The purpose of this study is to evaluate chitosan coagulant as an alternative coagulant of aluminium containing coagulants for removal of turbidity in coagulation and sedimentation process for water treatment. Jar tester was used to know the removal efficiency of kaolinite according to coagulant type(chitosan and PAC) and coagulation factors(alkalinity, coagulant dosage, and setting time). The contribution of applied coagulants for removal of kaolinite was also examined. Specific conclusions derived from this study are as follows. Optimal conditions using chitosan for removal of kaolinite by coagulation and sedimentation process were alkalinity 114 mg/L and coagulant dosage 10 mg/L, and the optimal condition with PAC to remove the kaolinite were alkalinity 32 mg/L and coagulant dosage 50 mg/L. The formation of floc with chitosan was more quick and dense than that of PAC. Therefore it will be more economic by the shortening of reaction time and the reduction of the volume of reaction tank.
The contributions of chitosan and PAC for removal of turbidity as shown upgrade of removal efficiency were 86% and 56%,respectively. Because the difference of removal efficiency between chitosan and PAC was not significant, it is potentially possible to use the chitosan as an alternative coagulant in water treatment processes.
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