Flocculation performance of alginate grafted polysilicate aluminum calcium in drinking water treatment

Autor:	Gao Wenxiu, Jie Ma, Wang Xiyue, Yimin Liu, Dawei Lou, Zhang Hao, Lili Lian
Rok vydání:	2021
Předmět:	Flocculation Environmental Engineering Solid particle Chemistry General Chemical Engineering chemistry.chemical_element Calcium Physical Entrapment Chemical engineering Aluminium Environmental Chemistry Water treatment Turbidity Safety Risk Reliability and Quality Sodium alginate
Zdroj:	Process Safety and Environmental Protection. 155:287-294
ISSN:	0957-5820
DOI:	10.1016/j.psep.2021.09.012
Popis:	An inorganic-biopolymers hybrid flocculant (PSAC-SA) was prepared by modifying sodium alginate onto polysilicate aluminum calcium (PSAC) through coordination between SA and Ca2+. The preparation conditions of PSAC-SA and the flocculation parameters that influence of the turbidity and color removal efficiency were investigated and optimized. The flocculation experiments results showed that the maximum turbidity and color removal could get 97.2% and 98.4% for kaolin-humic acid suspensions, respectively. The application of PSAC-SA for Songhua River treatment indicated that it had an excellent flocculation capacity in real water samples, and its flocculation efficiency was much better than that of individual flocculants (PSAC and SA). Moreover, the flocculation mechanisms were discussed in detailed, which indicated that the bridging effect and physical entrapment of solid particles played an important role in the flocculation process.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::db72ef222ee7a771ef8345bc159794cc https://doi.org/10.1016/j.psep.2021.09.012 Zobrazit plný text záznamu Full Text from ScienceDirect