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Kumar, L., Dutt, D., and Bharti, A. (2013). "Delignification of Phragmites karka - a wetland grass - by soda pulping process," BioRes. 8(3), 3426-3437.

Abstract

Phragmites karka, a common wetland grass, was delignified by the soda pulping process, and all the operating parameters were optimized. The effects of both anthraquinone and surfactant on pulp yield and kappa number at optimum pulping conditions were also investigated. The pulp was beaten at different beating levels to optimize different mechanical strength properties. A detailed morphological study of soda-AQ pulp of P. karka was conducted by scanning electron microscopy.
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