SBIR Phase II: Energy Efficient COD Removal and De-nitrification for Re-circulating Aquaculture Facilities with a Combined Bio-electrochemical Process

SBIR 第二阶段：采用组合生物电化学工艺对再循环水产养殖设施进行节能 COD 去除和反硝化

• 批准号: 1127435
• 负责人: Zhen Huang
• 金额: $ 50万
• 依托单位: Cambrian Innovation Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-11-01 至 2018-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1127435&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Energy; Efficient

This Small Business Innovation Research (SBIR) Phase II project will optimize and pilot test a novel, energy-positive approach to de-nitrification for the global aquaculture industry. Recirculating aquaculture systems suffer from high wastewater treatment costs. Leveraging recent advances in bio-electrochemical systems, Cambrian's de-nitrification technology is capable of simultaneously treating chemical oxygen demand (COD) at end of pipe and nitrates in culture tank water while generating electricity directly. Phase I R&D demonstrated the existence of exo-electrogenic microorganisms in aquaculture wastewater. A flow through reactor consistently treated nitrate to below EPA drinking water concentrations (10mg/L) while removing an average of 65% of end-of-pipe COD and generating over 96 Amps/m3. An economic analysis demonstrated potential operating savings of over 70%, and significant bio-security benefits, versus competing systems. Phase II R&D will focus on optimizing treatment rates and reactor parameters with partner firms, and piloting a scaled reactor at an Aquaculture farm.The broader impacts of this research are to introduce technologies and strategies that solve water and energy problems for the recirculating aquaculture industry. With the collapse of fisheries globally, the aquaculture industry is poised to fill an important gap in our food production. However, recirculating systems in particular are under pressure to limit environmental harm caused by water intensity and pollution. Bio-electrochemical systems represent a novel approach to turn waste resources into energy, thereby increasing farmer?s bottom line and resolving the tension between economics and sustainability. Future research can broaden applications to other industries.

这个小型企业创新研究（SBIR）第二阶段项目将优化和试点测试一种新的，能源积极的方法，以反硝化为全球水产养殖业。再循环水产养殖系统的废水处理成本很高。利用生物电化学系统的最新进展，寒武纪的反硝化技术能够在直接发电的同时同时处理管道末端的化学需氧量（COD）和养殖池水中的硝酸盐。第一阶段研发证明了水产养殖废水中存在外源产电微生物。通过反应器的流动一致地处理硝酸盐低于EPA饮用水浓度（10毫克/升），同时去除平均65%的管端COD，并产生超过96安培/立方米。经济分析表明，与竞争系统相比，潜在的运营成本节省超过70%，并具有显著的生物安全效益。第二阶段的研发将集中在优化处理率和与合作伙伴公司的反应器参数，并试点规模的反应器在水产养殖场。这项研究的更广泛的影响是引进技术和战略，解决水和能源问题的循环水产养殖业。随着全球渔业的崩溃，水产养殖业有望填补我们粮食生产的一个重要缺口。然而，再循环系统尤其面临着限制水强度和污染造成的环境危害的压力。生物电化学系统代表了一种新的方法，把废物资源转化为能源，从而增加农民？的底线和解决经济和可持续性之间的紧张关系。未来的研究可以将应用扩展到其他行业。