JST - Innovative UV technologies for the removal of emerging contaminants and sustainable water supplies in small communities

日本和加拿大的一些顶级饮用水工程师/研究人员拟议的合作研究涉及互补项目，旨在解决加拿大和日本小型和农村社区面临的问题和挑战。拟议的研究将侧重于：（i）受藻类大量繁殖影响的地表水源的特征（加拿大小组），评估藻类毒素造成的健康风险（加拿大小组）和微生物污染（日本队）;（ii）应用新的和新兴的紫外线技术灭活病原体（两组），DBP形成减少（日本团队），以及藻类毒素和味道和气味化合物的降解（加拿大队）;（三）比较紫外线工艺与较传统的技术的性能，并评价它们在水处理系统中的整合情况（两个队）。加拿大研究人员的具体工作包括对加拿大各地受藻华影响的一些地表水源进行定性，以量化蓝藻毒素的存在和类型。将进行实验室规模的研究，以评估基于紫外线的高级氧化工艺的有效性，并制定一套蓝藻毒素和藻类产生的味道和气味化合物的降解设计标准。自然水华样品将用于评估蓝藻代谢物的降解， 在水华挑战条件下对消毒工艺性能的影响。特别强调将给予新兴的紫外线发光二极管和真空紫外线氧化工艺，并与更成熟的技术比较。产出/交付成果：创新的紫外线技术（真空紫外线和LED紫外线），以及详细的 将这些技术与其他竞争技术进行比较。影响：拟议的项目将产生新的/改进的技术，这些技术在能源使用、维护和操作方面可能比目前的方法更可持续和更有效。

The proposed collaborative research, among some of Japan and Canada's top drinking water engineers/researchers, involves complementary projects which aim to address issues and challenges facing both Canadian and Japanese small and rural communities. The proposed research will focus on: (i) characterization of surface water sources affected by algal blooms (Canadian team), assessment of health risk due to algal toxins (Canadian team) and microbial contamination (Japanese team); (ii) application of novel and emerging UV based technologies to inactivation of pathogens (both teams), reduction of DBP formation (Japanese team), and degradation of algal toxins and taste & odour compounds (Canadian team); and (iii) comparing the performance of UV processes against more conventional technologies and evaluating their integration within a water treatment train (both teams). The specific work of the Canadian researchers involves characterization of a number of surface water sources affected by algal blooms across Canada, to quantity the presence and types of cyanotoxins. Bench scale studies will be conducted to evaluate the effectiveness of UV-based advanced oxidation processes and to develop design criteria for the degradation of a suite of cyanotoxins and algal produced taste & odour compounds. Natural bloom samples will be used to evaluate the degradation of the cyanobacteria metabolites in addition to the impact of disinfection process performance under bloom-challenged conditions. Particular emphasis will be given to emerging UV-light emitting diodes and vacuum UV oxidation processes, and their comparison with more established technologies. Outputs/deliverables: Innovative UV-based technologies (vacuum UV and LED-UV), as well as a detailed comparison of these technologies with other competing processes. Impacts: The proposed project results in new/improved technologies that would be potentially more sustainable and effective than current approaches in terms of energy use, maintenance, and operation.