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游泳池温泉中去除隐孢子虫卵囊的技术方法研究(英文版)
所属分类：农业科学>>农业科学>>林牧渔业作者：路平|责编:李敬出版社：中国矿大
Cryptosporidium outbreaks in recreational water venues have threatened public health, especially in swimming pools. There is still no reliable treatment technique to remove Cryptosporidium oocysts from swimming pools. The performance of six coagulants and granular materials on Cryptosporidium removal from pools was evaluated. Seeding methods of coagulants and their dosage versus oocysts concentrations were tested. Results indicated oocysts removal efficiency for feeding oocysts and coagulant simultaneously were more than 99 (2 log), and continuously feeding of coagulant achieved at least 99％(2 log) removals, compared with removal efficiency was 20％ by control experiment without coagulation. All of these experiments indicated that the polymer coagulant should be fed by pump automatically and continuously in order to maximize oocysts removals. In addition, oocysts concentration impacted the system performance. The higher oocysts concentration consumed more polymer. Overall, polyDEDMAC and PAX is effective and promising coagulants to improve oocysts removals from swimming pools. Furthermore, granular materials were effective to remove Cryptosporidium but filter pressure was significantly increased.
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