| Literature DB >> 26794754 |
Huanlong Peng1, Songxiong Zhong1, Qintie Lin2, Xiaosheng Yao1, Zhuoying Liang1, Muqun Yang3, Guangcai Yin1, Qianjun Liu1, Hongfei He1.
Abstract
A novel amphoteric starch incorporating quaternary ammonium and phosphate groups was applied to investigate the efficiency and mechanism of cationic and anionic contaminant treatment. Its flocculation abilities for kaolin suspension and copper-containing wastewater were evaluated by turbidity reduction and copper removal efficiency, respectively. And the kinetics of formation, breakage and subsequent re-formation of aggregates were monitored using a Photometric Dispersion Analyzer (PDA) and characterized by flocculation index (FI). The results showed that amphoteric starch possessed the advantages of being lower-dosages-consuming and being stronger in shear resistance than cationic starch, and exhibited a good flocculation efficiency over a wide pH range from 3.0 to 11.0.Entities:
Keywords: Amphoteric starch; Buffering capacity; Phosphate group; Shear resistance
Year: 2015 PMID： 26794754 DOI： 10.1016/j.carbpol.2015.11.064
Source DB: PubMed Journal: Carbohydr Polym ISSN： 0144-8617 Impact factor: 9.381