01792nas a2200229 450000500170000000800410001703500150005810000270007324500700010026000520017030000230022249000270024550001020027250200570037452008670043165000480129870000370134670000390138370000450142271000360146781000590150320260818085300.0301098s1983 th r 000| 0eng d a.b1017381x0 aPreecha Loosereewanich10aCost analysis of wastewater treatment in the Greater Bangkok Area aBangkok :bAsian Institute of Technology,c1983 a100 leaves :bill.1 aThesis ;vno. EV-83-15 aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Science aThesis (M.Sc.) - Asian Institute of Technology, 1983 aA number of regression equations of capital cos-t and operation and maintenance cost of several treatment processes was established from the analysis of 80 treatment plants located in the Greater Bangkok Area, Thailand. Past costs were adjusted for inflation, material and labour cost fluctuations. In this study, the most important cost determinants were found to be design wastewater flow, BOD loading and population equivalent. Suspended solid loading was also a significant determinant of chemical treatment capital cost. This study revealed that influent BOD had no direct effect on the cost. Influent COD was instead one of the cost determinants of oxidation ditch capital cost. The empirical cost equations developed in this study are just for es- timation. With some modification and restriction, they may help to deter- mine actual costs. 10aWater quality managementxNepalxPhewa Lake1 aNguyen, Cong Thanh,eChairperson1 aOrth, H.M.,eExamination Committee0 aSamorn Muttamara,eExamination Committee2 aUSAID-ASEAN,eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. EV-83-15