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Who described the use of contactors in wastewater treatment?

Who described the use of contactors in wastewater treatment? Correct Answer Ware and Pescod

Ware and Pescod in 1989 described the use of contactors. The full scale aerobic/anaerobic rotating biological contactors are used to remove or treat the brewery wastewaters. More than 85% of COD was removed in the aerobic stage.

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