0 votes 0 votes Effluent from an industry ‘A’ has a pH of $4.2$. The effluent from another industry ‘B’ has double the hydroxyl (OH) ion concentration than the effluent from industry ‘A’. pH of effluent from the industry ‘B’ will be ______ Water and Waste Water Quality and Treatment gate2016-ce-1 numerical-answers water-and-waste-water-quality-and-treatment environmental-engineering effluent-discharge-standards + – Milicevic3306 asked Mar 27, 2018 • retagged May 27, 2021 by Chandanachandu Milicevic3306 11.9k points answer See all 0 reply