摘要
目的探讨高效、经济、可行的去除饮用水中藻毒素的水处理方法。方法采用烧杯试验,研究不同水处理工艺[混凝沉淀(液态聚合氯化铝、固态聚合氯化铝、聚合硫酸铁、聚丙烯酰胺),氧化(高锰酸钾、二氧化氯、臭氧),吸附(粉末活性炭)]对微囊藻毒素的去除效果,并进行工艺优化组合和验证;藻毒素的检测采用酶联免疫法(ELISA)。结果混凝沉淀可少量去除水中微囊藻毒素(去除率为4.3%～29.7%),臭氧等氧化剂预处理工艺与混凝沉淀工艺组合后,对微囊藻毒素的去除率提高,达83.3%～91.9%;成本效益分析表明,所选臭氧预处理工艺及"氧化剂+吸附剂"预处理工艺使每吨水处理成本仅增加0.03～0.14元。结论在常规水处理基础上进行臭氧、高锰酸钾氧化、二氧化氯、粉末活性炭等预处理,能较好地去除微囊藻毒素,且经济可行。
Objective To explore the efficient, cheaper and practical water treatment process in removing algae toxins. Methods The different water treatment methods were used and the optimal combination was selected. The removing efficiency for different processes was compared and validated by beaker test. The enzyme-linked immunosorbent assay （ELISA） was conducted in microcystin testing. Results Coagulating sedimentation could remove a small part of microcystin （removing efficiency was from 4.3% to 29.7% ）. When oxidants were applied in pretreatment processes, such as ozone combined with coagulant, 83.3% to 91.9% microcystin could be removed. The cost-benefit analysis showed these processes only increased 0.03 to 0.14 yuan RMB cost per cubic meter of water, for example, by using ozone pretreatment and oxidation plus adsorption processes. Conclusion On the basis of general water treatment, ozone（O3）, potassium permanganate（KMnO4）, chlorine, dioxide（ClO2）and powdered activated carbon（PAC） are effective for removing microcystin in pretreatment processes and the processes are cheaper and practical.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2008年第2期103-106,共4页
Journal of Environment and Health
基金
江苏省预防医学基金项目(Y200416)
关键词
水污染
微囊藻毒素
处理工艺
成本效益分析
Water pollution,Microcystins,Treatment process,Cost-benefit analysis
