Water treatment options for dissolved cyanotoxins
Water treatment options for dissolved cyanotoxins
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DOI：
10.2166/aqua.2004.0019
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发表时间：
2004-06-01
影响因子：
4.3
通讯作者：
Nicholson, B
中科院分区：
文献类型：
--
作者：
Newcombe, G;Nicholson, B
当处理水受到蓝藻水华的首要任务应该是去除完整的细胞使用分离技术，如混凝或膜过滤。氯化和臭氧氧化是有效的破坏残余溶解的微囊藻毒素和柱孢藻毒素。类毒素-a可以使用臭氧有效地去除，尽管氯相对无效。氧化技术似乎不是在正常处理厂操作条件下处理石房蛤毒素的最佳方法。粉末活性炭可以有效地去除所有毒素，除了微囊藻毒素LA，只要使用适当的碳和正确的剂量。颗粒活性炭过滤器对大多数微污染物（包括蓝藻毒素）的吸附寿命有限。通过GAC过滤器的蓝藻毒素的生物降解显示出作为处理过程的巨大潜力。
When treating water subject to a cyanobacterial bloom the first priority should be removal of intact cells using separation techniques such as coagulation or membrane filtration. Chlorination and ozonation are effective for the destruction of residual dissolved microcystins and cylindrospermopsin. Anatoxin-a can be effectively removed using ozone, although chlorine is relatively ineffective. Oxidation techniques do not appear to be the best method for the treatment of saxitoxins under normal treatment plant operating conditions. Powdered activated carbon can be effective for the removal of all toxins, except, perhaps, microcystin LA, provided the appropriate carbon and the correct dose is applied. Granular activated carbon filters show a limited lifetime for the adsorption of most microcontaminants, including cyanotoxins. The biodegradation of cyanotoxins across GAC filters shows great potential as a treatment process.