Harmful algae blooms removal from fresh water with modified vermiculite

Vermiculite and vermiculite modified with hydrochloric acid were investigated to evaluate their flocculation efficiencies in freshwater containing harmful algae blooms (HABs) (Microcystis aeruginosa). Scanning electron microscope, Fourier transform infrared spectroscopy, X-ray diffraction, converted...

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Publié dans:Environmental technology. - 1998. - 35(2014), 1-4 vom: 28. Jan., Seite 340-6
Auteur principal: Miao, Chunguang (Auteur)
Autres auteurs: Tang, Yi, Zhang, Hong, Wu, Zhengyan, Wang, Xiangqin
Format: Article
Langue:English
Publié: 2014
Accès à la collection:Environmental technology
Sujets:Journal Article Research Support, Non-U.S. Gov't Aluminum Silicates Water Pollutants vermiculite 1318-00-9
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520 |a Vermiculite and vermiculite modified with hydrochloric acid were investigated to evaluate their flocculation efficiencies in freshwater containing harmful algae blooms (HABs) (Microcystis aeruginosa). Scanning electron microscope, Fourier transform infrared spectroscopy, X-ray diffraction, converted fluorescence microscope, plasma-atomic emission spectrometry, and Zetasizer were used to study the flocculation mechanism of modified vermiculite. It was found that the vermiculite modified with hydrochloric acid could coagulate algae cells through charge neutralization, chemical bridging, and netting effect. The experimental results show that the efficiency of flocculation can be notably improved by modified vermiculite. Ninety-eight per cent of algae cells in algae solution could be removed within 10 min after the addition ofmodified vermiculite clay. The method that removal of HABs with modified vermiculite is economical with high efficiency, and more research is needed to assess their ecological impacts before using in practical application 
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700 1 |a Tang, Yi  |e verfasserin  |4 aut 
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700 1 |a Wu, Zhengyan  |e verfasserin  |4 aut 
700 1 |a Wang, Xiangqin  |e verfasserin  |4 aut 
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