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Wastewater quality index (WWQI) as an indicator of secondary treated wastewater quality and sustainable water reuse
Department of Chemistry, SSGC Government PG College, Suratgarh, Rajasthan, India.
Research Article
International Journal of Science and Research Archive, 2022, 06(01), 386-392.
Article DOI: 10.30574/ijsra.2022.6.1.0075
Publication history:
Received on 26 May 2022; revised on 25 June 2022; accepted on 28 June 2022
Abstract:
The purpose of the present study was the assessment of secondary treated wastewater of dairy industry effluent treatment plant as sustainable water resource in terms of wastewater quality index (WWQI). The results revealed that treatment process and discharged effluent is following the environment protection standards of Indian standards for discharge and irrigation. BOD values of 67% samples are higher than permissible limits of FAO and inland surface waters standards (30mg/l) (IS2490-Part I-1981). The other 15 measured physico-chemical parameters are within permissible values of Indian standards (IS2490-Part I-1981). The calculated WWQI values ranging from 43.77 to 68.97 are indicative of excellent to good quality of treated water in terms of physicochemical parameters. Still, the treatment process should be regularly monitored and improved to reach a better level of BOD and WWQI and hence better water quality.
Keywords:
Secondary treated wastewater; Sewage treatment plant; Physico-chemical parameters; Waste water quality index
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