Study On The Removal Of Algae With Hexadecyl Trimethyl Ammonium Bromide (Ctab) Modified Rectorite
ADVANCED MATERIALS AND PROCESSES II, PTS 1-3(2012)
摘要
Natural Ca-rectorite (Ca-REC) is modified with hexadecyl trimethyl ammonium bromide (CTAB) to get CTAB-rectorite (CT-REC). XRD and SEM analytical method were used to study the change of rectorite in external morphology and internal structure. The results showed that the layer structure of CT-REC was looser and the basal spacing was obviously bigger than Ca-REC. The ability of RECs in removing microcystis aeruginosa (M. aeruginosa) was investigated through long-term and short-term study. The results of short-term study showed that compared with Ca-REC removing 10% of the algae at the concentration of 0.1g/L in 10h, CT-REC removed more than 98% of the algae under the same condition. The results of long-term study showed that Ca-REC had acute effect on algae but couldn't terminate cell growth while CT-REC could put an end to the regrowth of algae and control the Harmful algal blooms effectively.
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关键词
rectorite, algae, CTAB modification, flocculation
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