Neurotoxic and hepatotoxic cyanotoxins removal by nanofiltration

  • Ribau Teixeira M
  • Rosa M
  • 33

    Readers

    Mendeley users who have this article in their library.
  • 34

    Citations

    Citations of this article.

Abstract

This study investigates the influence of chemical feed characteristics on nanofiltration performance for cyanotoxins removal, namely the neurotoxic anatoxin-a (alkaloid of 166 g/mol, positively charged) and the hepatotoxic microcystins (cyclic peptides of ∼1000 g/mol, negatively charged). Results indicate that NF membranes are an effective barrier against anatoxin-a and microcystins in drinking water. Anatoxin-a and especially microcystins were almost completely removed, regardless of the variations in feed water quality (natural organic matter and competitive toxin), the water recovery rate and the pH values. Anatoxin-a removal was governed by electrostatic interactions and steric hindrance, whereas for microcystins the latter was the main mechanism. In turn, fluxes were significantly impacted by background organics and, especially, inorganics (pH, calcium). © 2006 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Anatoxin-a
  • Calcium hardness
  • Microcystins
  • Nanofiltration
  • Natural organic matter

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Get full text

Authors

  • Margarida Ribau Teixeira

  • Maria João Rosa

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free