02107nam a2200241   450000500170000000800410001703500150005810000200007324500500009326000520014330000150019549000260021050001560023650200580039252010290045065000170147970000390149670000410153570000460157671001200162281000580174285600650180020260818143203.0021098s1980    th      r    0000|0 eng d  a.b103594001 aKeliat, Nalsali10aInfluence of mixing intensity of flocculation  aBangkok :bAsian Institute of Technology,c1980  avii, 94 p.1 aThesis ;vno. EV-80-8  aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, school of Environment, Resources and Development  aThesis (M.Eng.) - Asian Institute of Technology, 1980  aMicro-floe adsorption equation was used to investigate the influence of mixing intensity on the reduction of the micro-floes in flocculation. By varying the raw water turbidity, paddle position, area and rotation rate,  the basic equation for micro-floe adsorption is acceptable, and the best results of effective mean rate of turbulent energy dissipation is given by 0 = -0.5.  Artificial raw water was used in this research by adding kaolinite  clay to the tap water, and alum was used as coagulant. The validity of micro-floe adsorption equation was compared to  Contact Flocculation equation and Camp's equation, k = 0.4 is used in Camp's equation, because the experimental unit was used without stator.  The value of effective energy dissipation is found to be 0.1 to  0.12 of the total energy dissipation. The prediction of floe volume at ultimate floe size distribution is also presented.  The best G-values for these experiments are in the range 36 to 46 s-1, compared to recommended value in the range 5 yo 100 s-1  0aFlocculation1 aWatanabe, Yoshimasa, eChairperson1 aNguyen, Cong Thanh, eCo-Chairperson0 aSamorn Muttamara, eExamination Committee2 aUnited States Agency for International Development/  Regional Economic Development (USAID/RED), eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. EV-80-8  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B21964