A Review On Research On Application Of Trickling Filters In Removal Of Various Pollutants From Effluent

Waste water treatment by using biological methods is very important area of research in environmental field because of its advantages and applicability. The suspended growth processes like activated sludge process are common in treatment facilities. Various aspects of biological processes for removal of various pollutants are being studied by investigators. The current review aims at studying the trickling filter systems for removal of various pollutants. The review of research carried out to study various aspects of trickling filter system with respect to its efficiency, operating parameters, economy of the process are presented in this paper. It was observed that the trickling system has been used very effectively in laboratory scale. In many investigations, pilot plant and further scale up was also done successfully. Trickling filter system with or without some modifications have been used successfully for removal of organic and inorganic matter, pathogens.