Wastewater with High COD, BOD & NH3N

Published on March 7, 2019 09:42 by Sin Tian Ong, Employee at konta in Technology

We are a printing company. Below is our process flow of wastewater treatment

Collection sump - Oil trap - red box (electrocoagulation) - filter press - slow sand filter - Sequencing batch reactor

Currently we are facing treated wastewater with high COD (400-600mg/l), BOD (97mg/l) and ammoniacal nitrogen (44mg/l).

Our pH value in SBR tank is high too (8.3-8.6). Foaming happened during aeration. Before this, we have wasted all sludge from SBR tank and refill it with influent and solution with a microorganism.

Could it be the root cause of the problem? What can I do to solve the problem?

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Taxonomy

COD Removal
Industrial Wastewater Treatment
Industrial Water Treatment
Waste Water Treatments
Wastewater Treatment
Industrial Water Treatment
Wastewater Treatment Plant Design
Water & Wastewater