Effect of Vibration on Hydraulic Conductivity of Clogged Soil

Riverbank Filtration System (RBF) is regarded as the pre-treatment technology to treat surface water and ground water resources. RBF technology is used for pre-treatment existing raw surface water supplies but also develop sustainable water supplies for demand. However, riverbank filtration system needs to be maintained regularly because filter media is being clogged as the solids are trapped. When the solid particles are trapped, the water will not be able to flow easily. The clogging may decrease the sustainability of ground water abstraction. The results of this effect, it will charge of additional costs of monitoring, replacement and rehabilitation of wells. The location of this study is located at Damansara River, Seksyen 13, Shah Alam. The river are primarily comes from Klang River which most of its water comes from the industrial activities that discharged into the river. The objective of this study is to assess the effect of hydraulic conductivity (K) due soil clogging. Besides that, the study also intended to identify whether the vibration method is an effective method for clogging dispersion in soil. Throughout the study, tests that have been conducted are Falling Head test and vibration method by using sieve shaker. The average of hydraulic conductivity before vibration is 0.000319 cm/s while after vibration is 0.000201 cm/s. The frequency of vibration for soil sample is 50 Hz for 10 min. The duration of study was conducted within 2 months.