1. Removal of color from pulp and paper mill wastewater- methods and techniques- A review.
- Author
-
Kumar, Amit, Srivastava, Nirmal Kumar, and Gera, Poonam
- Subjects
- *
COLOR removal (Sewage purification) , *PAPER mills , *PULP mills , *PAPER mill waste , *PAPER pulp , *PAPER industry - Abstract
The pulp and paper industry consumes a huge amount of water and releases more polluted and colored wastewater every year. Many conventional techniques are used in the treatment of paper industry wastewater. However, for color removal from paper mill effluent, there is no proven method so far, on an industrial scale. Due to high energy input and high cost, there is an urgent need to find out a new technique that must be sustainable, economical, and environment friendly. Various methods have been investigated on bench scale and pilot scale also but no proven method for color removal on an industrial scale. The paper provides an overview of the color removal techniques from different sources of pulp and paper mill wastewater discharged by various industries. The review described various components involved in various processes for color removal from paper mill waste water. The present works focus on processes like chemical, chemical/physical, biological, physicochemical, and electrochemical applied in color removal from paper mill wastewater. The present review gives key information on the effectiveness, use, betterment, and limitations of numerous methods of treatment targeted at color removal from paper mill wastewater using various techniques still under evolution. • A critical study made on color removal from paper mill effluent using various methods. • Examined color removal efficiencies using conventional and advanced techniques. • Study on Cost analysis in color removal from paper mill effluent. • Future research suggestions described for better implementation of the processes. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF