Removal of nitrite, chloride and phosphate ions from hospital wastewater using Neem (Azadirachta Indica) activated carbon

Alau Kenneth K., Gimba Casimir

Abstract

The present study was conducted to evaluate the adsorptive capacity of the neem (Azadirachta indica) seed and husk activated with ZnCl2 and H3PO4 on hospital waste water. The wastewater was allowed to pass through the adsorbents (NSZ, NSH, NHZ and NHH) bed. The filtrates were analyzed to determine the amount of the wastewater components that have been adsorbed. The finding shows that the adsorbents had an excellent adsorption of nitrites (99.7%), chloride (100%) and phosphate (95%). The order of effectiveness of the adsorbent is as follows; NHH>NSZ>NHZ>NSH.