THE USE OF MORINGA OLIFERA SEEDS AND ALUM AS A NATURAL COAGULANT FOR DOMESTIC WASTE WATER TREATMENT IN SUMMER, WINTER & RAINY SEASONS
Moringa olifera is a pan tropical, multipurpose tree whose seeds contain a high quality edible oils (up to 40% by weight) and water soluble proteins that act as effective coagulants for water and waste water treatment. The use of this natural coagulant material has not yet realised its potential. A water extract of Moringa olifera seeds was applied to a waste water treatment sequence comprising coagulation-floculation-sedimentation-Filtration. The objective of this study is to evaluate the removal efficiency of turbidity, suspended solids, B O D, C O D& Total solids in three different seasons by using moringa olifera as a natural coagulant. Indiscriminate disposal of waste water with suspended solids have led to higher amount of pollution to the natural water bodies. Turbidity imparts a great problem in waste water treatment. It attempts the investigation of the coagulation performance of some parameters in contaminated domestic wastewater. The test results will be carried out using the conventional jar test apparatus. This study aims to add the fine powder of pre mentioned seeds as a natural coagulant in treating the domestic waste water which is turbid and the same water will be studied with synthetic coagulants such as alum. Both of these coagulant materials the removal efficiency is obtained very high in moringa olifera seeds. When used moringa olifera seed powder as coagulant, it caused favourable changes in the pH of the treated water and the best colour, turbidity & BOD removal at acceptable pH was obtained.
Moringaolifera Seed Powder, Alum, Domestic Effluent, Coagulation, Jar test Apparatus.