Groundwater Quality Assessment and Evaluation of Scaling and Corrosiveness Potential of Drinking Water Samples

Environmental Sciences Proceedings

article

Aftab Alam¹  Saurabh Kumar¹ 

[1] Department of Civil Engineering, National Institute of Technology Patna

关键词: groundwater quality;    water quality index (WQI);    statistical analysis;    scaling and corrosiveness potential;   

DOI  :  10.3390/ECWS-7-14316

来源: mdpi

【 摘 要 】

This research was to examine water stability and to evaluate the drinking water quality. Groundwater samples from 16 borewells in Aurangabad, Bihar, were taken from the shallow unconfined aquifer and tested for a wide range of physicochemical characteristics. The pH, temperature, TDS, and EC were measured at the sites. Ca2+, Mg2+, F−, Cl−, NO3−, SO42−, alkalinity, and hardness concentrations were examined in the laboratory. The groundwater’s stability was measured using Corrosiveness Indices including the Langeliar saturation index (LSI), Ryznar stability index (RSI), Puckorius scaling index (PSI), Larson-Skold index (Ls), and Aggressivity index (AI). The data showed that typical values for LSI, RSI, PSI, and LS and AI were −0.92 (±0.47), 9.09 (±0.67), 9.50 (±0.73), 1.73 (±0.78), and 11.05 (±0.48), respectively. Groundwater WQI calculations revealed that 25% of the samples were excellent, 50% were good, 19% were poor, and 6% were extremely poor. All of the water samples tested positively for corrosiveness according to the LSI and PSI indices. Water samples show a strong corrosive potential (87.50% according to RSI) or a low corrosive tendency (12.50% according to RSI). 75% of the water samples have a strong corrosive tendency, 18.50% have a corrosive tendency, and 6.25% have a scaling tendency, according to Ls. According to AI, 93.75% of the water samples had a moderately corrosive tendency, whereas 6.25% were extremely corrosive.

【 授权许可】

Unknown