Effect of chitosan quaternary ammonium salt on the growth and microcystins release of Microcystis aeruginosa

Abstract

This present study was the first time to research the application potential of HTCC inM. aeruginosacontrol. To balance the inhibition efficiency ofM. aeruginosaand the release of MCs, 1.2 mg L−1was chosen as appropriate dose.

Recyclable and Intrinsically Anti‐cyanobacterial Polyanionic Membranes

“…In addition to the electrostatic interactions, other factors may also influence the anti‐cyanobacterial activities of the PA‐M membranes. As for the PA‐NH, the existence of NH + may damage the chlorophyll in cyanobacteria and inhibit the photosynthesis, eventually leading to cells death . Potent anti‐cyanobacterial activities were also achieved for PA‐Cu membranes, because Cu 2+ can cause the loss of membrane integrity.…”

“…Eutrophication of rivers and lakes accelerated by nutrient pollution has become a worldwide problem . One of the obvious signs of eutrophication in rivers is harmful algal blooms, such as cyanobacteria and diatoms .…”

“…ozonation), ultrasound technologies have been developed to remove or inhibit the cyanobacteria in water. Among the methods applied, the direct chemical methods using chemical compounds (algaecides, flocculants or coagulants) is the most widely used effective method because of the ease of operation and relatively low costs . However, chemical compounds usually generate low selectivity and adverse environmental impacts.…”

“…Eutrophication of rivers and lakes accelerated by nutrient pollution has become aw orldwide problem. [1,2] One of the obvious signs of eutrophication in rivers is harmful algal blooms, such as cyanobacteria and diatoms. [3][4][5] These cyanobacteria bloomsu sually produce diverset oxins (microcystins, nodularins, saxitoxins, anatoxins, cylindrospermopsin) in highly eutrophic water.…”

“…ozonation), [12] ultrasound technologies [13] have been developed to remove or inhibit the cyanobacteria in water.A mong the methods applied,t he direct chemical methods using chemical compounds (algaecides, flocculants or coagulants) is the most widely used effective method because of the ease of operation and relatively low costs. [2,14,15] However,c hemical compounds usually generate low selectivity and adversee nvironmental impacts.F urthermore, the secondary pollution potentially induced by the chemical compounds may be harmful to the aquatic organisms even human beings. [16] During the past years, biocompatible and biodegradable anti-cyanobacterial methods have received more attention, such as biotic interactions.…”