Volume No. 4 Issue No.: 1 Page No.: 1-7 July-Sept 2009

 

EFFECT OF DOMESTIC WASTEWATER TREATMENT OPTIONS ON WATER QUALITY OF THE LOWER PHETCHABURI RIVER, THAILAND

 

Pattamaporn Yodsanti* and Thares Srisatit

Inter-department of Environmental Science, Chulalongkorn University, (THAILAND)

 

Received on : May 01, 2009

 

ABSTRACT

 

The aim of this study was to assess the water quality of the lower Phetchaburi River by enhancing the wastewater treatment plant construction and increasing BOD treatment efficiency. A hydrodynamic and water quality simulation had been carried out for the present condition in the river and calibrated and validated with wet and dry season data. Calibrated model was used to simulated various scenarios. Among scenarios, scenarios of the three new wastewater treatment plants construction and BOD treatment efficiency up to 10 and 5 mg/l were found most significant for BOD reduction. The water quality improvement of the lower Phetchaburi River still requires reducing domestic wastewater and releasing more water from the Phet Dam in dry season.

 

Keywords : Water quality model, RMSE, Water quality, MIKE-II

 

 

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