Project Details

Project Name: Toxicity Reduction Evaluation and Wastewater Treatment Design for Paperboard Manufacturing Wastewater
Country: USA
Description: Laboratory biological, chemical coagulation and activated carbon treatability studies were performed to evaluate their effectiveness for toxicity reduction. Chemical and aquatic toxicity testing was performed. The results indicated that toxicity was caused by trace levels of organic contaminants, possibly surfactants. Chemical coagulation and activated carbon adsorption reduced toxicity but results were inconsistent. Biological treatment was found to be effective in eliminating acute toxicity. Due to the low level of biodegradable material present in the wastewater, the use of a cosubstrate was required. Based on the results of the study, a sequencing batch reactor(SBR) biological treatment system was designed. Modifications were also engineered for existing physical and chemical treatment facilities.

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