Swathi Dash, Manoj Kumar Karnena, Bhavya Kavitha Dwarapureddi, Aman Raj and Saritha Vara
Abstract
The other side of industrial development is pollution of water bodies across the world making water unfit for any use. This is adding to the crisis of water for consumption and also rendering available water not safe for consumption. Industrial wastewaters are to be treated appropriately within limits before discharge into natural waters. In spite of having stringent regulations several industrial effluents do not meet discharge standards attributed to insufficient treatment processes and use of chemical treatment methods. This paper is an attempt to review treatment of industrial wastewaters using natural coagulants in order to reduce the pollutant concentrations from the industrial wastewaters. A summary of industrial wastewaters treated by specific natural coagulants is also presented. Studies reviewed illustrated positive and good results of pollutant removal. It can be concluded from the review that natural coagulants have potential to treat and reduce pollutant load from various industrial effluents and hence can be successfully utilized.