Paolo Martin D. De La Cruz, Matthew David A. Vilora (March 2011)
Philippine Science High School Western Visayas Campus – Department of Science and Technology (DOST-PSHS WVC), Brgy. Bito-on, Jaro, Iloilo City 5000, Philippines
ABSTRACT
Grey water is one of the common domestic waste water which is often disposed of without treatment. When grey water is continually disposed in the same location, surfactants may accumulate and cause deterioration of water quality and capillary rise of soil. This study aimed to determine the amount of surfactants the filter in untreated and filtered grey water and to calculate the amount of surfactants the filter was able to filter. Waste rubber tire, moringa oleifera seeds abd Cocos nucifera charcoal were used as the filter media for the filter. The amounts of surfactants in the samples were determined using the rapid spectrophotometric using methylene blue. There was 0.0032348 M of unfiltered grey water and 0.0009384M, 0.0002736 M, 0.0001908 M and 0 M of filtered water from first to fourth filtrations. The filter was capable of reducing at most 29% of the surfactants present in grey water. The study confirmed that the filter media used were able to filter surfactants from laundry grey water.