A PRELIMINARY STUDY ON THE FEASIBILITY OF ON-SITE TREATMENT OF ORGANIC WASTE BY USING COMPOSTING TOILET IN METRO MANILA

Abstract

In Metro Manila, the National Capital Region of the Philippines, huge amount of organic waste deteriorates rivers and waterways. Under the present social and economic condition, however, it is quite difficult to build modem treatment farms as are common in developed countries. In this study, introduction of the composting-type toilets for treating both of human excreta and kitchen garbage at homes is proposed, based on field surveys about the present toilets and waste management in Metro Manila. Then, experimental results are shown on the weight reduction rate of organic waste when the both components are treated together in the toilet. In addition, the possibility for acceptance of composting-type toilets in the Philippines is discussed from the results of a survey by questionnaire at Ninoy Aquino Park where a composting-type toilet is installed.