The use of filter media to determine filter cleanliness

Physics and Chemistry of the Earth, Parts A/B/C - Tập 36 - Trang 1135-1140 - 2011
S.J. Van Staden1, J. Haarhoff1
1Department of Civil Engineering Science, University of Johannesburg, PO Box 524, Auckland Park 2006, South Africa

Tài liệu tham khảo

AWWA, 1992. Standard Methods for the Examination of Water and Wastewater, 18th ed. American Public Health Association, Washington, DC. Clements, M., 2005. Biofilm on Filtration Media, Unpublished D. Eng thesis, University of Johannesburg. Haarhoff, J., Van Staden, S., 2006. Measuring the cleanliness of filter media. In: Ninth WISA Biennial Conference, 22–24 May 2006, Durban. Haarhoff, J., Van Staden, S.J., Geldenhuys, J., Sibiya, M., Naicker, P., Adam, N., 2008. Assessments and Improvement of Filter Media Cleanliness in Rapid Gravity Sand Filters. WRC Report 1525/1/08. Pretoria. Kawamura, 2000 Logsdon, 2002 Lombard, 1995, Filter nozzle and underdrain systems used in rapid gravity filtration, Water SA, 21, 281 Van Staden, 2004, A standard test for filter media cleanliness, Water SA, 30, 81, 10.4314/wsa.v30i1.5030 Van Staden, S.J., Haarhoff, J., 2004b. An Improved Filter Media Test for Troubleshooting and Rehabilitation of Problem Filters. WQTC, 14–18 November 2004, San Antonio, Texas. Van Staden, S.J., Haarhoff, J., 2006. Effective filter backwashing with multiple washes of air and water. In: Ninth WISA Biennial Conference, 22–24 May 2006, Durban.