The present study was designed to observe the monthly variation and interrelationship among the physicochemical characteristics of the surface water of a perennial pond situated at Biological park also known as Sanjay Gandhi Jaivik Udyan, Patna. The different physicochemical parameters was determined for the period of two years i.e from May, 2016 to April, 2018 to analyse the pond water quality. The maximum value of water temperature, transparency, total solids, total dissolved solids, total suspended solids, turbidity, pH, conductivity, dissolved oxygen, biological oxygen demand, chemical oxygen demand, total alkalinity, chloride, total hardness, calcium hardness, magnesium hardness, nitrate, inorganic phosphorus, sodium, potassium were found as 32.6 ± 0.24 °C; 24.57 ± 0.18 cm; 1510.66 ± 4.50 mg/l; 1210 ± 0.89 mg/l; 478.33 ± 2.11 mg/l; 37.46 ± 0.22 NTU; 8.54 ± 0.0245; 542 ± 11.57 µ S cm¯1; 8.216 ± 0.01 mg/l; 6.73 ± 0.074; 14.27 ± 0.114 mg/l, 269.36 ± 0.157 mg/l, 63.51 ± 0.13 mg/l, 333.33 ± 2.581 mg/l; 101.2 ± 0.089 mg/l; 19.13 ± 0.068 mg/l; 1.56 ± 0.004 mg/l; 1.43 ± 0.0078 mg/l; 7.726 ± 0.025 mg/l, 4.81 ± 0.215 mg/l respectively during the study period. This study therefore gives insight about the existing health of the pond and will be helpful to take suitable measure by the authorities to maintain the healthy environment and wholesomeness of the pond.
The quality of surface water is deteriorating day by day due to various anthropogenic activities. Ganga water is assumed polluted almost in the entire strech of river. The medicinal plants may be useful for amelioration of pollution. The present work deals with the study of several chemical characteristics as well as microbial examination of water samples taken from few sites of Ganga river namely Krishna Ghat, Kali Ghat and N.I.T Ghat (Gandhi Ghat) at Patna. The study was foccused on the evaluation of antimicrobial effect of Moringa oleifera (sahjan) leaves extract in the Ganga water. The aqueous leaves extract of different concentrations (0.1%, 0.16%, 0.23%, 0.3%) showed ameliorating results on pH and chloride content of water as well as microbial activity. Significant ameliorating results were observed on pH and chloride content of water. pH was reduced from 8.1 to 7.4 and chloride was reduced from 82.36 mg/l to 48.14 mg/l under plant extract treatment. Colony Forming Unit (CFU) was assessed by standard plate count (SPC) method and was found to be 468 CFU/ml for raw water, which was reduced to 143 CFU/ml when treated with plant extract. Similar decreasing trend was observed in case of MPN of coliform. So extract of Moringa oleifera may also be applied to purify drinking water. Morever it will be cheaper for the people in comparision to other purification devices.
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