Comparing Poly Aluminum Chloride and Moringa Seeds as Alternative for Water Coagulations

Abstract

This study was conducted on the Blue Nile water in order to compare the effect of polyaluminium chloride (PAC) and Moringa seeds extract on some physical, chemical and biological properties. Poly Aluminum Chloride (PAC) is a chemical used to treat water and is highly effective, non-toxic and easily dissolved in water and is a sterilizer with a high capacity and activity to sinter pollutants in water, can be used immediately or after diluting in water at a determined dose on the other hand Moringa seeds are rich in potassium, calcium and other important elements. Studies have shown that Moringa seeds have a high ability to purify water by adding it to water tanks after extracting oil from them. Four gram of moringa seeds were immersed in a total volume of 100 mL after screening, where it was diluted twice to have three concentrations and an equal dose of three concentrations (6 mL) was taken to make a dose test to determine the ideal concentration, and the optimal dose was determined based On these tests, different concentrations of poly aluminum chloride were selected based on information from the Mogran Station and the optimal dose of the poly aluminum chloride was determined. After knowing the optimal dose of Moringa seeds and poly aluminum chloride, physical, chemical and biological tests were carried. The results obtained indicated a clear effect of both coagulant on physical, chemical and biological properties on the Blue Nile water samples where there was a decrease in turbidity and total number of bacteria, coliform and E. coli, while pH, water hardness, electrical conductivity and water dissolved salts were not affected significantly.