Study on Preparation and Application in Flocculants of Modified Lignin

Haiyin Liu, Xiuyun Yang, Xiaoqiu Liu, Haibo Yao, Yunhui Li

Abstract


The lignin sulfonate was modified with olefins monomer by the method of radiation graft polymerization, by which a new type of natural polymer flocculants can be made. And results of the flocculation and sedimentation are tested in the furfural wastewater treatment process. Furfural wastewater is a complex composition, whose COD is about 20000mg / L, is difficult to be treated by conventional methods. Our results showed that the kind of flocculants can remove 50 percent COD or more from furfural wastewater after aerating and adjusting pH value to 9.


Full Text: PDF DOI: 10.5539/mas.v5n1p205

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Modern Applied Science   ISSN 1913-1844 (Print)   ISSN 1913-1852 (Online)

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