RIVERBANK FILTRATION: EVALUATION OF HYDRAULIC PROPERTIES AND RIVERBANK FILTERED WATER AT JENDERAM HILIR, SELANGOR

Riverbank filtration (RBF) is a natural process where river water is induced to flow through riverbed soils to pumping wells located on the banks. It is a well-established and proven natural water treatment technology. Improvement of water quality is achieved by a series of chemical, biological and physical processes during subsurface passage. This paper aims at evaluating the hydraulic properties of the aquifer and bank filtered water at the RBF study area located in Kg. Jenderam Hilir, Selangor. The pumping well was able to produce 142.21 m(3)/hour of water with a drawdown of 2.17 m. Transmissivity (T) and hydraulic conductivity (K) were 59.15 m(2)/hour and 4.41 m/hour respectively. Turbidity and color from the range of 52.1 to 62.3 NTU and 9 to 44 PtCo were reduced to 0.27 to 0.55 NTU and 7 to 12 PtCo respectively.