Volume : VI, Issue : V, May - 2016

Membrane Bioreactor Filtration to Minimize Evaporator Operation in ZLD System

Mr. Srinivasarao Gangavarapu, Dr. Uma Maheswara Rao Ganguru, Dr. Narasimha Murthy Brahmandam

Abstract :

<p> A study was conducted to assess the MBR (Memane Bio–Reactor) benefits in ZLD (Zero Liquid Discharge) system. Effluents, used in the study was collected from API manufacturing unit operations, contained COD (Chemical Oxygen Demand) and TDS (Total Dissolved Solids) <1500 mg/l. The ZLD system consist of Bio–ETP (Biological Effluent Treatment Plant), MBR (Memane Bio–Reactor), RO (Reverse Osmosis) and Evaporator. In ZLD, biological ETP outlets are fed in MBR followed by RO. The permeate generated in operation recycled to utilities for reuse and rejects generated send to Evaporator for further treatment. To assess the benefits of MBR, ZLD system was also operated by bypassing MBR (i.e., Bio–ETP outlet was directly fed to RO plant). The result in experimental study indicated that, without MBR affects the performance of ZLD system. MBR operation in ZLD system increased the RO permeate recovery from 68 to 83 percent, and daily average Evaporator feed (i.e., RO rejects) generation reduced almost by 50%, which resulted in significant reduction of operation cost of ZLD system</p>

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

Mr. Srinivasarao Gangavarapu, Dr. Uma Maheswara Rao Ganguru, Dr. Narasimha Murthy Brahmandam Membrane Bioreactor Filtration to Minimize Evaporator Operation in ZLD System Indian Journal of Applied Research, Vol.6, Issue : 5 MAY 2016

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