Turbid Water Clarification Using Extraction of Cowpea Seeds

Abstract

Coagulation is an important process in water treatment. The common chemical coagulant used in the water treatment is alum. However, since the publicity of Moringa Oleifera seed as natural coagulant, researchers have tried to exploit the possible usage of natural coagulants as well as developing new natural coagulants from other plants. The potential of a locally available vegetable. Cowpea, to act as natural coagulant was studied using jar test. Turbid water tied was prepared by adding kaolin to distilled water. It was discovered that cowpea alone could not remove the turbidity , However, the coagulation activity was remarkable only when bivalence caption such as Ca² and Mn² were added. In this study, the active component of cowpea was extracted using NaCI salt solution. The cowpea extract achieved an average turbidity removal efficiency of 80%