Journal de la science et de la technologie des membranes

Abstrait

Waste Water Management by Membrane Fouling in Membrane Bioreactors (MBRs)

Ruby John

The Membrane Bioreactor (MBR) has arisen as a proficient conservative innovation for metropolitan and mechanical wastewater treatment. The significant downside obstructing more extensive use of MBRs is layer fouling, which altogether lessens film execution and life expectancy, bringing about a huge expansion in upkeep and working expenses. Discovering economical layer fouling alleviation techniques in MBRs has been one of the fundamental worries in the course of the most recent twenty years. This paper gives an outline of film fouling and contemplates led to recognize relieving systems for fouling in MBRs. Classes of foulants, including biofoulants, natural foulants and inorganic foulants, just as components affecting film fouling are laid out. Ongoing exploration endeavours on fouling control, including expansion of coagulants and adsorbents, mix of high-impact granulation with MBRs, presentation of granular materials with air scouring in the MBR tank, and majority extinguishing are introduced. The expansion of coagulants and adsorbents shows a huge film fouling decrease, however further examination is expected to build up ideal doses of the different coagulants/adsorbents. Additionally, the coordination of vigorous granulation with MBRs, which targets biofoulants and natural foulants, shows exceptional filtration execution and a critical decrease in fouling rate, just as incredible supplements evacuation. Be that as it may, further examination is required on the improvement of long haul granule respectability. Majority extinguishing additionally offers a solid potential for fouling control, however pilot-scale testing is needed to investigate the attainability of full-scale application.