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
- 2019.3
- 수록면
- 17 - 23 (7page)
이용수
초록· 키워드
오류제보하기
This study monitored changes in the level of heterotrophic bacteria in the filtrate and investigated the effect of stagnant water on it, using a batch-operated, gravity-driven membrane system for household water treatment. The filtration test was carried out in the presence and absence of stagnant water in the filtrate line. The results showed that stagnant water accelerated the heterotrophic bacteria levels, measured by heterotrophic plate count, even though the heterotrophic plate count of the filtrate finally increased up to 10<SUP>5</SUP> CFU/mL regardless of the presence of stagnant water. When the change in heterotrophic plate count of a batch was monitored over filtration time, heterotrophic plate count of the filtrate rapidly decreased within 5 min for each batch filtration. Biofilm formation on the filtrate line was observed in the presence of stagnant water. The biofilm fully covered the filtrate line and contained numerous microorganisms. During storage after filtration, heterotrophic plate count increased exponentially. To improve the filtrate quality of a filtration-based household water treatment system, therefore, the stagnant water in the filtrate line should be minimized, the filtrate produced at the first 5 min is recommended not to be used as potable water, and the storage of filtrate should be avoided.
목차
ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
References
참고문헌 (27)
참고문헌 신청
Szewzyk U, Szewzyk R, Manz W, Schleifer KH. Microbiological safety of drinking water. Annu. Rev. Microbiol. 2000;54:81-127.
Liu G, Lut MC, Verberk JQ, Van Dijk JC. A comparison of additional treatment processes to limit particle accumulation and microbial growth during drinking water distribution. Water Res. 2013;47:2719-2728.
Ho L, Braun K, Fabris R, et al. Comparison of drinking water treatment process streams for optimal bacteriological water quality. Water Res. 2012;46:3934-3942.
Sobsey MD, Stauber CE, Casanova LM, Brown JM, Elliott MA. Point of use household drinking water filtration: A practical, effective solution for providing sustained access to safe drinking water in the developing world. Environ. Sci. Technol. 2008;42:4261-4267.
Rosa G, Clasen T. Estimating the scope of household water treatment in low- and medium-income countries. Am. J. Trop. Med. Hyg. 2010;82:289-300.
Liu G, Lut MC, Verberk JQ, Van Dijk JC. A comparison of additional treatment processes to limit particle accumulation and microbial growth during drinking water distribution. Water Res. 2013;47:2719-2728.
Ho L, Braun K, Fabris R, et al. Comparison of drinking water treatment process streams for optimal bacteriological water quality. Water Res. 2012;46:3934-3942.
Sobsey MD, Stauber CE, Casanova LM, Brown JM, Elliott MA. Point of use household drinking water filtration: A practical, effective solution for providing sustained access to safe drinking water in the developing world. Environ. Sci. Technol. 2008;42:4261-4267.
Rosa G, Clasen T. Estimating the scope of household water treatment in low- and medium-income countries. Am. J. Trop. Med. Hyg. 2010;82:289-300.
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UCI(KEPA) : I410-ECN-0101-2019-539-000032732