Abstract
The ability of sand filter in treating grey water collected from the college residential is studied. Sand filter was used because it is among the most effective methods to clean the burden of pollution in the wastewater. Six sand filters with different compositions were set up in which three sand filters only consist of sand and gravel while another three sand filters were added with coconut shell activated carbon. These sand filters were used to treat the grey water based on water quality parameters which are pH, AN, TSS, BOD5, COD, and PO4 3-. The results show that concentration of AN, TSS, BOD5, COD, and PO4 3- was reduced up to 37%, 94%, 96%, 93% and 57% respectively while pH was neutral with a value of 7.60. Furthermore, the results also indicated that the sand filter added with coconut shell activated carbon was better in removing the pollutants as compared with sand filter without added activated carbon.
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