TREATMENT OF TEXTILE EFFLUENT USING SUBMERGED MEMBRANE BIOREACTOR

Climate change makes people to be aware about the environmental pollutions in aspect of Air, Water and Soil components. The environmentally aware countries have forced the other countries to implement the stringent effluent standards for disposal into water stream / water bodies. Hence, modern technology like the application of membrane separation (Micro or Ultra filtration) technique with biological treatment processes (known as membrane bioreactor or MBR) was developed in last decade. But due to minimum sludge handling problem and economical in aspect of space and operating cost, a tremendous growth in the use of MBR to treat the industrial or municipal effluent. It has been observed from the literature review that MBR technology is very efficiently used for the treatment of recalcitrant nature effluent i.e. non biodegradable organic constituents like Textile effluent, Textile effluent or lignin containing effluent. In this study, the treatment of synthetically Textile effluent was considered by using a submerged membrane bioreactor in the laboratory scale analysis. The work is carried out two phases. In phase I of the work, the concentration of the synthetic effluent was optimized through the batch process. The synthetic effluent with the optimum concentration will be continuous feed to the submerged MBR for process evaluation in the second phase of the work. The raw textile effluent will have COD in the range of 1500 - 2500mg/L. At the end of MBR treatment COD removal efficiency obtained was about 90%.