Evaluation of coagulating efficiency and water borne pathogens reduction capacity of Moringa oleifera seed powder for treatment of domestic wastewater from Zomba, Malawi

The objective was to investigate the potential of Moringa oleifera seed powder in enhancing domestic wastewater treatment through the reduction of microbial load, turbidity and total dissolved solids (TDS). Moringa oleifera powder seed reduced turbidity from 287 to 38.8 Nephelometric turbidity unit (NTU), increased pH from 4.3 to 7.1, and set total dissolved solids (TDS) at standards recommended by World Health Organization guidelines for drinking water. Optimum reduction in microbial load was observed at a dosage of powder of 15 gL−1, with particular potency against Salmonella and Shigella spp. However, each dose of Moringa oleifera seed powder showed its own ideal settling (contact) time for microbe reduction before regrowth of microbes.
Source: Journal of Environmental Chemical Engineering - Category: Chemistry Source Type: research