A COMPARATIVE STUDY ON TREATMENT OF CETP WASTEWATER USING SBR AND SBR-IFAS PROCESS
Journal: Water Conservation and Management (WCM)
Author: Sharon Sudhakar, Nandini Moondra, Robin A Christian
Print ISSN : 2523-5664
Online ISSN : 2523-5672
This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
The wastewater generated from industries needs to be treated before discharge but ETPs are not affordable and hence the common effluent treatment plant was provided for collectively treating wastewater from various industries. The existing treatment methods used for such wastewater are costly and hence the present study focusses on using biological method for treating pre-treated mixed industrial wastewater from CETP using a sequencing batch reactor (SBR) with suspended biomass and an SBR-IFAS, a combined suspended and attached growth process at an HRT of 10 hours. After treatment with SBR technology, the maximum COD removal efficiency obtained was 68.69% at an MLSS concentration of 2756 mg/L. Similarly, for the SBR-IFAS reactor, the COD removal efficiency reached 75.51% at an MLSS concentration of 2846 mg/L. MLVSS obtained was 1395.00 mg/L in SBR and 1433.00 mg/L in SBR-IFAS. Chromium removal reached 62.85% and 66.67% in SBR and SBR-IFAS reactors, respectively. The study revealed that the attached growth media and suspended growth media combinedly resulted in a higher reduction in industrial wastewater treatment and can ultimately help reduce the volume of the secondary treatment at CETP by increasing the footprint of the treatment plant.