Leow, Huan Nam creator Nguyen Cong Thanh Chairperson Samorn Muttamara Examination Committee Woo, K.Y. Examination Committee Nguyen T. P. Examination Committee Lee Foundation of Singapore Scholarship Donor text th Bangkok Asian Institute of Technology 1976 monographic eng

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57 p. A pilot plant consisting of series and dual media filters was operated discontinuously at a filtration rate of 0.15 m3 /m2-h under the average raw water turbidity of 45 JTU. The filters used were the coconut fiber - burnt rice husk series filter, burnt rice husk - sand series filter, burnt rice husk - sand and coconut fiber - burnt rice husk dual media filters. It was found that the burnt rice husk - sand dual media filter with the discontinuous operation could produce good quality water suitable for drinking purpose in term of its clarity and bacteriological content for a period of about 2~ months. Odor and anaerobic condition prevailed in the coconut fiber - burnt rice husk series and dual media filters. Due to the high head loss build up rate, the burnt rice husk was not suitable to be used as a roughing filter medium in the series filtration system. Preliminary study on the turbidity removal performance and head loss development of these filters operated continuously at a filtration rate of 0.15 m3 /m2-h but slowed down during the night time (16 h) were also conducted. A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science of the Asian Institute of Technology, Bangkok, Thailand. Thesis (M.Sc.) - Asian Institute of Technology, 1976 Water Purification Filtration Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B23865 http://203.159.5.9/ait-thesis/detail.php?q=B23865 20260817162155.0