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
- 학술대회자료
- 저자정보
- 발행연도
- 2013.10
- 수록면
- 3,083 - 3,088 (6page)
이용수
초록· 키워드
오류제보하기
It is well known that the increase of foulants such as high-turbidity pollutants (i.e., colloidal particles) and different forms of natural organic matters (NOMs) in raw surface water, which all are often caused by heavy rainfall, result in heavy fouling on membrane surface and inhibit its operation. NOMs in raw surface water mostly comprise humic substances (i.e., humic acid and fulvic acid) and polysaccharides. The performance of coagulation and filtration process was evaluated to remove colloidal particles (Kaolin) and natural organic matters (NOMs) from high turbidity raw water. In this research, NOM was classified into hydrophobic strongly acidic NOM (HSN) and hydrophilic neutral NOM (HNN). As the result of jar test, turbidity of the supernatant was lowest at 7mL of alum injection concentration. In the individual test of HNN, HSN and Kaolin, removal efficiencies of turbidity were 93.9% for HSN, 76.3% for HNN and 99.4% for Kaolin, hence we found the HSN could much remove than HNN of NOMs by coagulation and filtration process, and most of Kaolin was removed by coagulation and filtration. In the mixture test of HNN and HSN, turbidity removal was 95.3%, and it was due that HSN helped the HSN coagulation. Finally, for the mixture test of HNN, HSN and Kaolin, removal efficiency was 99.4%, due to the coagulation capacity of Kaolin. Therefore, turbidity removal of HNN is better than HSN, because the zeta potential of HSN was lower than that of HNN, and also Kaolin had a role as a coagulant for HSN and HNN.
목차
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
REFERENCES
참고문헌 (0)
참고문헌 신청이 논문의 저자 정보
최근 본 자료
댓글(0)
0