Indian Journal of Science and Technology

Abstract

Filtration is a process where solid particles present in a suspension are separated from liquid or gas employing a porous medium. This article includes some advances in sintered metal filters, different types of filter media and their applications in various industries. Recent applications of ultra filtration and some advances in bag and belt filtration systems have also been discussed. This article also focuses on advantages of self cleaning filters over manual and mechanical cleaning. Thus, advances in filtration technology include the development of continuous processes to replace old batch process technology. Different self cleaning filters reduce product loss, required minimal operator intervention and improves flow consistency. Using programmable logic controllers in humidity ventilation and air conditioning system which often use sensors can cut installation and labor costs. On the global scale, we are surrounded by different filters. Thus by using latest filters and filter media it is possible to apply it in various food, starch and sugar industries, which reduces the time as well as give better quality products.
Keywords: filter media, ultra filtration, bag filtration, belt filtration, HVAC system.