02006nam a2200253   450000500170000000800410001703500150005810000200007324500820009326000520017530000110022749000220023850001630026050200580042352009520048165000210143365000180145465000280147270000350150070000420153571000560157781000540163385600650168720260817162158.0231297         th                  eng    a.b1026162x1 aChen, Shu-liang12aEvaluation of some physico-chemical processes for treating textile wastewater  aBangkok :bAsian Institute of Technology,c1974  a100 p.1 aThesis ;vno. 632  aA thesis submitted-in partial fulfillment of the requirements for the degree of Master of Engineering in the Asian Institute of Technology, Bangkok, Thailand.  aThesis (M.Eng.) - Asian Institute of Technology, 1974  aSeveral physico-chemical processes were studied in treating the high color, low BOD textile wastewater from a synthetic textile factory using polyester and rayon as raw materials. Among these  processes are series filtration using shredded coconut husk fiber and burnt rice husk as filter media, granular and/or powdered activated carbon adsorptions, and chemical coagulation. Both series  filtration and carbon adsorption were found ineffective due to poor color removal efficiency and short operational time. Chemical  coagulation using alum as coagulant was found capable of removing 90% of color and 50% of COD at pH of 6.0 and dosage of 200 mg/l for a representative composite sample. 0.4 mg/l of Sanpolymer A510 was used as a coagulation aid to accelerate the settling of the precipitants. A. survey of the in-plant wastewater and an appraisal of-different treatment systems for the generated wastewaters was also made as part of the study.  0aWaterxPollution 0aTextile waste 0aFactory and trade waste1 aHtun, Maung Nay, eChairperson1 aPescod, M.B., eExamination Committee2 aAsian Institute of  Technology, eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. 632  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B24187