UNS: Collaborative Research: Green infrastructure for water-quality improvement in constructed urban streams

1512109（McCray）和1511797（Mozingo）。未来35年，美国人口将增加约50%，主要是城市新开发或再开发，这为实施开明的城市水解决方案提供了独特的机会。在当地城市范围内有益地利用雨水和回收废水是创新的水管理办法，但受到监管或政策障碍的阻碍。本研究的主要目的是（a）开发工程模块，放置在已建成的城市河流的河段，用于处理选定的废水或雨水衍生污染物，包括营养物质（N和P）的子集，微量有机化学品（TrOC），城市农药，金属和病原体，以及（B）了解必须克服的监管，城市规划和社会障碍，并确定最有利的城市规划方案，以便在相关的城市规模上成功实施这一技术。将开发的处理模块被称为“生物水化学强化河水处理”模块。如果成功，BEST模块将提高城市水质，促进回收废水和雨水的有益再利用，并提供社会效益。具体目标包括：（1）确定工程设计特点和管制机会以及对广泛的城市小规模实施BEST设施很重要的障碍;（2）使用柱和中等规模的2-D BEST实验测试选定的几何体以去除优先污染物;（三）使用实验结果和数学建模设计水力优化BEST模块，以确保适当的流量和RT，优先污染物的生化反应（4）在我们现有的试点规模的建造溪流中使用当地回收的废水和雨水测试BEST模块。研究课程和基础设施将被纳入环境工程所需的研究生和本科生核心课程，城市景观设计的设计工作室，以及实践环境工程夏季实地考察。一个本科生高级设计团队将参与研究。

1512109 (McCray) and 1511797 (Mozingo). The U.S. population will increase about 50% over the next 35 years, mostly as urban new development or re-development, presenting a unique opportunity to implement enlightened urban water solutions. Beneficial use of stormwater and recycled wastewater at the local urban scale are innovative water management options but are hampered by regulatory or policy barriers. The primary purposes of this research are (a) to develop engineered modules placed in reaches of constructed urban streams for treatment of selected wastewater or storm-water derived contaminants, including a subset of nutrients (N and P), trace organic chemicals (TrOCs), urban pesticides, metals, and pathogens, and (b) to understand the regulatory, urban planning, and social barriers that must be overcome, and to identify the most conducive urban-planning scenarios to successfully implement this technology at a relevant urban scale. The treatment modules to be developed are termed "biohydrochemically enhanced stream-water treatment" (BEST) modules. If successful, BEST modules would enhance urban water quality, promote beneficial reuse of recycled wastewater and storm water, and provide social benefits. Specific objectives include: (1) Identify engineering design characteristics and regulatory opportunities and barriers important for widespread urban landscape-scale implementation of BEST facilities; (2) Test selected geomedia for removal of priority contaminants using column and intermediate-scale 2-D BEST experiments; (3) Design hydraulically optimal BEST modules using experimental results and mathematical modeling to ensure appropriate flow volume and RT that enable effective biochemical reactions for priority pollutants (4) Test BEST modules in our existing pilot-scale constructed streams using local recycled wastewater and stormwater. The research lessons and infrastructure will be incorporated into required graduate and undergraduate core classes in environmental engineering, design studios in urban landscape design, and a hands-on environmental engineering summer field session. An undergraduate senior design team will participate in the research.