The effectiveness of Moringa Oleifera seed coagulant in reducing the turbidity and modifying the physico-chemical characteristics of water

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dc.contributor.author Kitheka, Johnson U.
dc.contributor.author Njogu, Imelda N.
dc.contributor.author Muluvi, Geoffrey M.
dc.contributor.author Hunja, Caro W.
dc.contributor.author Mutiso, Festus
dc.contributor.author Kioko, D.
dc.contributor.author Kimatu, Josphert N.
dc.date.accessioned 2022-05-10T09:23:00Z
dc.date.available 2022-05-10T09:23:00Z
dc.date.issued 2022-04
dc.identifier.citation African Journal of Environmental Science and Technology, Vol. 16(4), pp. 126-145 en_US
dc.identifier.issn 1996-0786
dc.identifier.uri https://academicjournals.org/journal/AJEST/article-full-text/3F2296D68960
dc.identifier.uri http://repository.seku.ac.ke/handle/123456789/6787
dc.description DOI: 10.5897/AJEST2022.3093 en_US
dc.description.abstract Moringa oleifera plant is unique due to its coagulation effect on turbid water. However, the extent to which the seed’s powder coagulant changes the physico-chemical characteristics of treated water has not been discussed in previous studies. In addition, there are limited data and information on the optimum concentration of M. oleifera seed powder coagulant and the nature of the sludge that forms after the treatment of water. The aim of this study is to examine the extent to which M. oleifera seed powder can be used as a coagulant in treating different types of turbid waters and how it changes the physico-chemical characteristics of treated water. Samples of turbid water were subjected to various dosages of dry M. oleifera seed powder concentrations to determine the degree of clarification, changes in physico-chemical characteristics of water and the proportion of sludge formed after coagulation process. The results showed that M. oleifera seed powder leads to reduction of water turbidity from 461 NTU to about 15 NTU within 45 min. Significant clarification of turbid water occurred at the mean optimum concentration of M. oleifera seed powder coagulant (0.20 g/l) and maximum optimum concentration of 0.50 g/l. The mean water turbidity reduction efficiency was 64% with the maximum efficiency of 95%. Increasing coagulant concentration above 0.50 g/l led to an increase in water turbidity, electrical conductivity, salinity and total dissolved solids (TDS). The sludge formed after water treatment was found to be equivalent to 10% of the total volume of treated water. There are also significant differences in the effectiveness of coagulant derived from various provenances of M. oleifera found in Eastern and Coastal regions of Kenya in terms of turbidity reduction. en_US
dc.language.iso en en_US
dc.subject Moringa oleifera en_US
dc.subject turbidity en_US
dc.subject water treatment en_US
dc.subject coagulation en_US
dc.subject physico-chemical parameters en_US
dc.title The effectiveness of Moringa Oleifera seed coagulant in reducing the turbidity and modifying the physico-chemical characteristics of water en_US
dc.type Article en_US


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