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Wastewater contains chemical substances such as​

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The four main TYPES of chemicals used in WASTEWATER treatment are pH neutralisers, anti-foaming agents, coagulants and flocculants. The most straightforward CLASS of chemicals is pH neutralisers, although why and how they are used VARIES depending on the process PRODUCING the wastewater.Sep 12, 2017Explanation:please follow me and mark me as a brainlist



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