An efficient eco-friendly approach for recycling of newspaper waste
- 12 Downloads
In this study, a chemical reduction strategy was explored for deinking of newspaper waste using xylano-pectinolytic catalysts. A remarkable reduction of 40% in toxic chemicals consumption was obtained by introducing this enzymatic approach of deinking along with improved level of various physical and optical properties. Similarly, a reduction of 18.89% and 17.68% in BOD, COD values of effluent has also been noticed. This combined deinking methodology also resulted in a gain of 5.82% in breaking length, 6.45% in tear factor, 8.57% in burst factor and 9.64% in viscosity, which greatly improved the quality of the handsheets. The study revealed that enzymatic deinking followed by chemical deinking with 40% less chemicals consumption, could be an effective method for reducing the negative impact over the environment caused by 100% deinking chemicals. This is the first report of newspaper waste deinking using xylano-pectinolytic catalysts produced concurrently in the same production media by a bacterial isolate using agricultural wastes as carbon sources.
KeywordsDeinking Chemical reduction strategy ERIC analysis Effluent Ecofriendly
The financial support (Grant number: HSCST/2258) provided by Department of Science and Technology, Government of Haryana, India is greatly acknowledged.
Compliance with ethical standards
Conflict of interest
Authors declare no conflict of interest concerning the publication of this article.
- Miller GL (1959) Use of dinitrosalicylic acid reagent for determination of reducing sugar. Anal Chem 31:420–428Google Scholar
- TAPPI test methods (1996) Technical association of the pulp and paper industry. TAPPI Press, AtlantaGoogle Scholar
- Virk AP, Puri M, Gupta V, Capalash N, Sharma P (2013) Combined enzymatic and physical deinking methodology for efficient eco-friendly recycling of old newsprint. Plos One 128:290–296Google Scholar