01988cas|a2200253 i 450000500170000000800410001703500150005810000200007324500960009326000520018930000100024149000270025150000990027850200570037752009000043465000370133470000350137170000430140670000410144970000460149071000740153681000590161085600650166920260819085827.0170399s1991    th  uzm rtt  00|  a1eng d  a.b1075779x0 aSongsuda Vichan10aUse of crossflow microfiltration membrane technology in treating filter backwash wastewater  aBangkok :bAsian Institute of Technology,c1991  a70 p.1 aThesis ;vno. EV-91-21  aA thesis submitted in partial fulfillment of requirements for  the degree of Master of Science  aThesis (M.Sc.) - Asian Institute of Technology, 1991  aDetailed experimental study was conducted both laboratory  batch and continuous long term experiments to study the feasibility of using CFMF with periodic backflush technique in  treating backwash wastewater from rapid sand filter. Initialy batch experiment was carried out to study the effect of operating parameter i.e. suspended solid concentration  (832 - 2670 mg/l) and crossflow velocity (0.1-3.0) m/s on CFMF  performance. The better CFMF performance was observed from low  influent suspended solid. High crossflow velocity also gave the good result. CFMF with periodic backflush technique (Time of  filtration (TF) = 1 min., Duration of backflush (Tb) = 1 sec.) improve the productivity about 230 - 270%. The long term experiment was conducted at Bangken Water  Treatment Plant with field condition. The possibility of CFMF in  treating filter backwash wastewater was found satification.10aSewagexPurificationxFiltration0 aSamorn Muttamara,eChairperson1 aHarada, Hideki,eExamination Committee1 aKim,Sun - Il,eExamination Committee0 aSompol Boonthanon,eExamination Committee2 aDanish International Development Agency  (DANIDA),eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. EV-91-21  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B17412