Removal effects and mechanisms of microcystic aeruginosa by Chitosan-modified adsorbent

Xi Yang, Cuirong Wu, Yan He, Bingru Zhang, Fengting Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The health of humans and other organisms is threatened by increasingly serious water contamination by algae in all the country's major lakes such as Taihu Lake. This experiment was conducted to investigate the removal effects and mechanism of Microcystic aeruginosa by Chitosan-modified adsorbent, with comparison of polyaluminium chloride (PAC) and poly ferric sulfate (PFS). Microcystic aeruginosa grown in the laboratory was used for this experiment. The results showed that the algae-removal efficiency of Chitosan-modified adsorbent presents a good performance. When the dosage of the adsorbent reached 20ppm, the turbidity and the chlorophyll a of treated water dropped by 90% and 86%, respectively. Compared to conventional coagulation, the dosage was reduced. The adhesive bridge effect of Chitosan and adsorption of modified adsorbent provided an important complement to subsequent dehydrating treatment for algae.

Original languageEnglish
Title of host publication2nd International Symposium on Aqua Science, Water Resource and Low Carbon Energy
Pages125-128
Number of pages4
DOIs
StatePublished - 2010
Externally publishedYes
Event2nd International Symposium on Aqua Science, Water Resource and Low Carbon Energy - Sanya, China
Duration: 7 Dec 200910 Dec 2009

Publication series

NameAIP Conference Proceedings
Volume1251
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2nd International Symposium on Aqua Science, Water Resource and Low Carbon Energy
Country/TerritoryChina
CitySanya
Period7/12/0910/12/09

Keywords

  • Chitosan modified adsorbent
  • Coagulation
  • Mechanism
  • Microcystic aeruginosa

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