ABC Wastewater Treatment Class IV Practice Questions - ABC Wastewater Treatment Operator Class IV Certification Exam

Which option is NOT a recognized method for managing RO concentrate (brine) at a potable-reuse WRRF?

Surface water discharge with dilution under an NPDES permit Deep well injection Evaporation ponds or brine concentrators (toward zero liquid discharge) Returning the concentrate to the head of the activated sludge process for additional biological treatment

Correct Answer:

Returning the concentrate to the head of the activated sludge process for additional biological treatment

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