净水厂生物活性炭滤池生物泄漏的调控技术述评

针对净水厂深度处理的生物泄漏和调控问题日渐引起人们重视的情况。分析了净水厂以生物活性炭滤池为主的生物泄漏缘由,从炭滤池的工艺调整与完善、运行参数优化以及组合拦截、强化消毒杀灭等方面评述了国内外研究和应用进展。认为当前控制生物活性炭滤池生物泄漏防控所面临的挑战主要在于缺乏控制无脊椎动物数量的标准、规范和可操作的调控技术指南,未来研究的重点是探明无脊椎动物对供水安全的风险强度、泄漏生物携菌与抗消毒能力,提出高效可行的耐氯无脊椎动物泄漏控制技术,降低无脊椎动物的虫卵或可孵化体进入供水管网的再生长及带来的微生物二次繁殖问题。

Review on Bio-Leakage Control Technology of BAC Filter in Water Purification Plant

In view of the bio-leakage and regulation of the advanced treatment of the water purification plant,people were paying more and more attention.The cause of bio-leakage in the water purification plant,which was dominated by biological activated carbon filters,was analyzed.The research and application progress at home and abroad was reviewed from the aspects of carbon filter process adjustment and improvement,operating parameters optimization,combined interception,and enhanced disinfection and killing.It is considered that the current challenge for the prevention and control of bio-leakage in BAC filters is mainly due to the lack of standards,norms and operational technical guidelines for controlling the number of invertebrates.Future research will focus on exploring the risk intensity,bio-carrying and anti-disinfection ability of invertebrates for water supply safety,proposing efficient and feasible chlorine-resistant invertebrate leakage control techniques to reduce the regeneration of eggs or reproductive body from invertebrates into water supply networks and the reproduction of microorganisms.