International Sugar Journal

Steps taken to rehabilitate the effluent treatment plant at Pongola sugar mill* [Full subscriber]

Abstract This paper deals with the remedial measures taken at the Pongola sugar mill to restore the performance of the Effluent Treatment Plant (ETP) with the objective of improving the quality of the final treated effluent. The Pongola ETP has been generously sized; however, over the years this capacity has been eroded due to high suspended solids ingress combined with elevated hydraulic loading. Incidents of water quality noncompliance with local regulations necessitated interventions to improve the quality of treated effluent. A programme of investigation to determine reasons for drop-off in performance followed by phased action plans to rehabilitate the Pongola…

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