| Author | Tiev Visoth |
| Call Number | AIT Thesis no.EV-99-30 |
| Subject(s) | Water quality--Cambodia--Phnom Penh
|
| Note | A thesis proposal submitted in partial fulfillment of the requirements for the degree of Master
of Science, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | The Tonle Sap River Basin plays a key role in supplying as raw water to Phnom Penh
City, Cambodia. The purposes of this study were: to evaluate water quality characteristics in
the Tonle Sap water basin, identify problems of water supply quality and conduct
experiments on water hyacinth pond (WHP) systems to improve quality of raw water from
the Tonle Sap river. Various aspects of water quality were studied at four locations of the
main path of the Tonie Sap River. Raw water, treated water and distributed water from
households from four districts were analyzed. Experiments on WHPs were conducted to
investigate the treatment efficiencies by changing HRT and varying the percentage of plant
harvesting.
The results showed that quality of the Tonie Sap water, treated water and distributed
water fluctuated with time and exceeded recommended WHO and MRC raw water and
drinking water quality standards. For example, the TSS concentrations of raw water from
Tonle Sap river were 80-600 mg/L, exceeding TSS the MRC raw water quality standard of
25 mg/L. The WHP experiments found the optimum conditions of WHP to be: HRT of 3
days, plant harvesting at 50% of the pond surface area; the k value was 30.7 m/yr. The use of
WHPs to pre-treat the raw water supply could improve the raw water quality to meet the raw
water quality standards. |
| Year | 1999 |
| Type | Thesis |
| School | School of Environment, Resources, and Development |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Environmental Engineering and Management (EV) |
| Chairperson(s) | Chongrak Polprasert ;Ha, Sung Ryong; |
| Examination Committee(s) | Preeda Parkpian ;Trankler, Josef; |
| Scholarship Donor(s) | Swedish International Development Agency
(SIDA) ; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1999 |