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Article citations


Sarasa, J., Roche, M. P. and Ormad, M. P. (1998) Treat-ment of a wastewater resulting from dyes manufacturing with ozone and chemical coagulation. Water Research, 32(9), 2721-2727.

has been cited by the following article:

  • TITLE: Research on the Graft Copolymerization of EH-lignin with acrylamide

    AUTHORS: Run Fang, Xian-Su Cheng, Jian Fu, Zuan-Bin Zheng

    KEYWORDS: Lignin; Acrylamide; Graft Copolymerization; Dye Wastewater; Decoloration

    JOURNAL NAME: Natural Science, Vol.1 No.1, July 2, 2009

    ABSTRACT: Lignin isolated from enzymatic hydrolyzed corn-stalks (EH-lignin) is a renewable natural polymer noted for its versatility and applicability in a vari-ety of uses. Graft copolymerization of EH-lignin with acrylamide (AM) and the application of this copolymer as a flocculant in dye wastewater treatment were studied in this article. The influ-ences of some factors on yield of copolymer and the grafting ratio were investigated and the structure of EH-lignin/AM graft copolymer was characterized by FT-IR. According to the yield and the grafting ratio, the optimum conditions for graft copolymerization were as follows: initiator K2S2O8-Na2S2O3 with a quantity 3 wt% of EH-lignin, mass ratio of AM to EH-lignin was 2~3, reaction time 4h and temperature at 50℃. It was found that the absorption capacity of graft copolymer to two azo-dyes was enhanced with the increase of grafting ratio. Furthermore, the residue concen-tration of EH-lignin/AM graft copolymer remained in the supernatant after flocculation was much lower than that of pure EH-lignin.