Application of Algae in Air Pollution Control Technique

Abstract

Air pollution is creating alarming situation day by day. Various primary and secondary air pollutants are the reasons behind it which are formed by various stimuli. To overcome the threats various control technologies like cyclonic separation, various scrubbers, hydrodynamic separator etc were used. One more method bio-filtration is used which uses living micro or macro organisms to biodegrade waste or harmful constituents. Air pollutants can be removed by the process of bio filtration. Aim of the project is to use algae in air pollution control technique and determine its efficiency when coconut fibres were used as filter bed. Hydrogen sulphide was prepared by Kipp’s apparatus. Filter bed of coconut coir was designed. Known concentration of hydrogen sulphide was passed through filter bed and concentration of passed air was measured by iodometric method. The collected algae were spread in filter bed. The known concentration of hydrogen sulphide was then passed through this filter bed consisting algae and passed air’s final concentration was again determined. The efficiency of only filter bed was found to be 62.52% and filter bed with algae was 70.66%.Algae can be successfully used in air pollution control technique.