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内容大纲
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. -
作者介绍
路平,中国矿业大学环境与测绘学院副教授、硕士生导师,徐州市生态健康学会理事。美国北卡罗来纳大学夏洛特分校博士,中国矿业大学博士后。长期从事矿区环境污染机理与修复技术、新污染物防控技术、环境地球化学、环境微生物学、可持续发展的研究与教学工作。 -
目录
Chapter 1 Swimming Pool Water Quality Overview
1.1 Introduction
1.2 Materials and Method
1.3 Results and Discussions
1.4 Conclusions
Chapter 2 First Evaluation of Coagulation Applied in Swimming Pool Waters
2.1 Introduction
2.2 Materials and Method
2.3 Results and Discussions
2.4 Conclusions
Chapter 3 Optimization on Cryptosporidium-sized Microspheres Removal from Recreational Water Venues
3.1 Introduction
3.2 Materials and Method
3.3 Results and Discussions
3.4 Conclusion
Chapter 4 Pilot-scale Swimming Pool Study
4.1 Introduction
4.2 Materials and Method
4.3 Results and Analysis
4.4 Discussions
4.5 Conclusions
Chapter 5 Full-scale Swimming Pool Study
5.1 Introduction
5.2 Materials and Method
5.3 Results and Discussions
5.4 Conclusions
Chapter 6 Cryptosporidium-sized Microspheres Removal from Swimming Spa using Cartridge Filter
6.1 Introduction
6.2 Material and Method
6.3 Results and Discussions
6.4 Conclusions
Chapter 7 Summaries
7.1 Overall Conclusions
7.2 Detailed Conclusions
References
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