SBIR Phase I: Energy Efficient BOD Removal and Denitrifcation for Recirculating Aquaculture Facilities with a Combined Bioelectrochemical Process

这个小企业创新研究（SBIR）第一阶段项目研究了一种新型的生物电化学系统，用于再循环和半再循环水产养殖设施废水中的碳和氮的联合处理。水产养殖业目前受到高水平废水和昂贵处理技术的阻碍。水产养殖废水中氮与碳的含量升高，需要几个昂贵和能源密集的步骤才能完成处理。生物电化学系统（BES）代表了一种新技术，能够以正能量的方式处理废水，同时产生比现有技术更少的副产品。该项目将建造和评估一种新型的三电池BES，它可以在一个组合的、能量积极的步骤中处理几种最重要的水污染物。第一阶段将证明该技术的可行性并量化系统性能。第二阶段的研究将制定详细的设计和开始试点研究在IntAct或在外地，等待第一阶段的结果。更广泛的/商业的影响，这项研究是展示一种新的方法，水产养殖废水处理的潜力，显着提高经济的再循环和半循环水产养殖系统。鱼类养殖正在成为一个重要的21世纪世纪产业，全球年产量已经超过6000万吨。然而，工业增长受到水资源竞争和废水处理技术高成本的制约。通过减少能源密集度和结合处理过程，生物电化学系统有可能大大提高再循环和半再循环水产养殖设施的经济效益和该行业的环境可持续性。

This Small Business Innovation Research (SBIR) Phase I project investigates a novel bioelectrochemical system for combined treatment of carbon and nitrogen in the wastewater of re-circulating and semi-re-circulating aquaculture facilities. The aquaculture industry is currently held-back by high levels of wastewater and expensive treatment technologies. Elevated levels of nitrogen versus carbon in aquaculture wastewater require several expensive and energy-intensive steps for complete treatment. Bioelectrochemical systems (BES) represent a new technology capable of treating wastewater in an energy-positive manner while producing fewer byproducts than existing technologies. The project will construct and evaluate a novel three-cell BES that can treat several of the most important water pollutants in a combined, energy-positive step. Phase I will prove feasibility of the technology and quantify system performance. Phase II studies will develop detailed designs and begin pilot studies at IntAct or in the field, pending Phase I results.The broader/commercial impacts of this research are to demonstrate a novel approach to aquaculture wastewater treatment with the potential to significantly enhance the economic of re-circulating and semi-recirculating aquaculture systems. Fish farming is emerging as a critical 21st century industry, with global annual production already more than 60 million tons. Yet industry growth is constrained by competition for water and the high cost of wastewater treatment technologies. By reducing energy-intensiveness and combining treatment processes, bio-electrochemical systems have the potential to greatly enhance the economics of re-circulating and semi-recirculation aquaculture facilities and the environmental sustainability of the industry.