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008			th eng
035			_a.b11687186
099		9	_aAIT Thesis no. EV-97-46
100	0		_aTaing Sophanara
245	1	0	_aLow-cost wastewater treatment : _bwaste stabilization ponds in Battambang Town (Cambodia)
260			_aBangkok : _bAsian Institute of Technology, _c1997
300			_a53 leaves
490	1		_aThesis ; _vno. EV-97-46
500			_aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development
502			_aThesis (M.Eng.) - Asian Institute of Technology, 1997
520			_aWaste stabilization ponds are suitable for tropical developing countries because of low cost of construction, and simple operation. A combination of anaerobic, facultative and aerobic ponds together with wetlands and fish ponds have been applied in Battambang town. The Battambang sewage treatment plant (STP) was installed in 1993 with funds from the European Community (EC) within the Cambodia Rehabilitation Program (CRP) in cooperation with Consultants for Development (SAW A) and International Development Research Committee (IDRC). This research study includes a literature review, data collection on the geographical and meteorological situation of the area, secondary and primary data indicating the river quality of the Sang Ke river and operations of the Battambang STP. An evaluation and comparison of results with results from other tropical countries considering environmental compatibility together with recommendations for the operation and maintenance of the ponds is given. The study found that the Battambang STP removal efficiency for fecal coliform is 99.9 %, for suspended solids 95 % and total dissolved solids 36 %. The effluent from Battambang STP meets the WHO standards for irrigation. Farmers using the effluent for irrigation of vegetables, fruit trees and other crops could improve the yield of their agricultural products. The water quality in the Sang Ke river was improved by establishing the pond systems. There is no sign of environmental deterioration except an increase of mosquitoes and some skin irritation for the farmers. The comparison with results from other ponds in tropical countries are satisfactory. Recommendations for further constructions, improving the maintenance and operation and some suggestions for public health aspects are given.
650	1	0	_aSewage lagoons _xCambodia _xBattambang
700	1		_aEckhardt, Ing. Heinz, _eChairperson
700	0		_aPreeda Pakpian, _eExamination Committee
700	1		_aIshibashi, Yoshinobu, _eExamination committee
710	2		_aDAAD (German Academic Exchange Service), _eScholarship donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. EV-97-46
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B14052
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