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

拟议中的合作研究由日本和加拿大的一些顶尖饮用水工程师/研究人员参与，涉及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的补充项目。拟议的研究将集中于：(I)受藻华影响的地表水源的特征(加拿大团队)，藻毒素引起的健康风险的评估(加拿大团队)和微生物污染(日本团队)；(Ii)应用新兴的紫外线技术来灭活病原体(两个团队)，减少DBP的形成(日本团队)，以及降解藻毒素和味觉与气味化合物(加拿大团队)；(Iii)比较紫外线工艺与更传统技术的性能，并评估它们在水处理培训中的整合(两个团队)。加拿大研究人员的具体工作包括描述加拿大各地受藻类水华影响的一些地表水源，以量化氰化毒素的存在和类型。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，并为降解一套氰基毒素和藻类产生的味道和气味化合物制定设计标准。自然水华样本将被用来评估蓝藻代谢物的降解，以及在水华挑战条件下消毒过程性能的影响。将特别强调新兴的紫外光发光二极管和真空紫外光氧化工艺，以及它们与更成熟的技术的比较。产出/交付成果：创新的紫外光技术(真空紫外光和LED-紫外光)，以及这些技术与其他竞争工艺的详细比较。影响：拟议的项目产生了新的/改进的技术，在能源使用、维护和运营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 tothe 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 detailedcomparison 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.