Your Cart

Your cart is empty

Home  >  Volume 38

42. Modelling Chlorine Residual in the University of Benin Water Distribution System by P.N Ogbeifun and J.O. Ehiorobo Volume 38, pp 297 – 308
Sale price: $5.00


The modelling of residual chlorine in the University of Benin water distribution was borne out to the desire to investigate the adequacy of the current quantity of chlorine for primary and secondary disinfection of the water extracted from the treatment headwork. The network comprise predominantly of asbestos cement pipe but with uPVC used for system expansion and for the replacement of faulty or burst pipes. The current consumption of water in the university stands at 18.10% of the actual population of the university. However the water infrastructure has the capacity to supply water to about 31.062% of the population of the university campus. In the University of Benin water supply system, the water at the extreme nodes of the network was used to assess the network water quality integrity using EPANET 2.0. From the study, it was found that the breakpoint chlorine concentration of the water was 1.56mg/L which can adequately cater for primary disinfection of the extracted water. With an addition of 0.3mg/L, and with the system functioning normally, there is only a drop of 0.08mg/L in the extreme nodes of the distribution. This implies that system has a quality performance index of 1, which is adequate. The water age was found to be lowest at the endcap nodes near the gully in the university campus and highest closest to the main gate of the campus. Microbiological tests revealed that the amount of total coliform of the water at hall 4 hostel was rather high even though it still meets the National Environmental standards and Regulation Enforcement Agency (NESREA) standard for drinking water quality.