Abstract

Wastewater can be a valuable resource in cities or towns where population is growing and water supplies are limited. In addition to easing the strain on limited freshwater supplies, the reuse of wastewater can improve the quality of streams and lakes by reducing the effluent discharges that they receive. In the present investigation an attempt has been made to access the physical and chemical parameters of treated wastewater collected from sewage treatment plant, Sample-1 (domestic sewage) and effluent treatment plant, Sample-2 (industrial effluent) for pH, conductance, chemical oxygen demand (COD), biological oxygen demand (BOD), total dissolved solids (TDS), total suspended solids (TSS), total solids (TS), ammonical nitrogen and Kjeldahl nitrogen. The physical parameter pH was within the permissible limit but conductance was little high which shows presence of high amounts of inorganic compounds. The chemical parameters like chemical oxygen demand, total dissolved solids and organic nitrogen are within the permissible limit but biochemical oxygen demand, total suspended solids and ammonia are higher than permissible limit. The TSS values of sample-1 and sample-2 are very high and they needs to be completely treated before discharge into any water body. In sample-1 few parameters are within the limit and few are above the permissible limit, hence the sample needs more treatment via secondary and tertiary treatment methods.

Description