SBIR Phase I: Novel Process Technology for Point-of-Generation Nitrogen Removal from Wastewater

SBIR 第一阶段：从废水中产生点脱氮的新型工艺技术

• 批准号: 1621647
• 负责人: Daniel Smith
• 金额: $ 22.5万
• 依托单位: Applied Environmental Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-07-01 至 2018-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1621647&HistoricalAwards=false
• 关键词: SBIR; Phase; Novel; Process; Technology

The broader impact/commercial potential of this Small Business Innovation Research Phase I project is to address the grand challenge of human-induced nitrogen loading to the environment. An easy-to-use and affordable system will target a major source of nitrogen releases to watersheds: the on-site systems that treat wastewater from millions of households and commercial facilities across the U.S. The need to mitigate harmful algal blooms and prevent other damaging cumulative effects to aquatic ecosystems have created an urgent demand for onsite technologies that remove nitrogen at its source. The proposed nitrogen removal technology is modular and adaptable for use in small-scale systems that treat wastewater from individual homes, community systems and commercial establishments. The project employs an innovative biological nitrogen removal process that that will be verified and optimized for high priority applications in rural, peri-urban, and urban settings. The system is mechanically simple, generates no waste products, and operates passively with minimal maintenance, energy or consumables. The results from this project will help to solve the critical challenge of nitrogen control by providing a highly efficient, low-cost, commercializable system that is practicable for on-site wastewater treatment in new and retrofit systems.The technical objectives of this Phase I research project are to design, construct, field-test, and critically evaluate variant prototypes of an innovative bioreactor system to remove nitrogen from onsite wastewater. Prototype bioreactors will be operated and monitored over multiple months to investigate their salient operational characteristics and define effective design and treatment regimes. The bioreactors will be installed to treat real household wastewater under field conditions. Nitrogen analytes will be monitored across the bioreactor systems to delineate the effects of biotreatment on four nitrogen species: organic nitrogen, ammonium, nitrate and nitrite. The effects of the biotreatment system on chemical and biochemical oxygen demand, inorganic chemical parameters, and other wastewater constituents of interest will also be elucidated. The project will critically evaluate the effectiveness of total nitrogen removal and the stability and resiliency of individual nitrogen removal transformations. The work will confirm the longevity and robustness of the nitrogen removal process and identify design and operating parameters that optimize an innovative approach to remove total nitrogen from on-site wastewater while mitigating nitrogen releases to the environment. Prototype design and monitoring will facilitate scale-up of results to full-scale biotreatment systems.

这个小企业创新研究第一阶段项目的更广泛的影响/商业潜力是解决人类引起的氮负荷对环境的巨大挑战。一个易于使用和负担得起的系统将针对氮排放到流域的主要来源：处理来自美国数百万家庭和商业设施的废水的现场系统。拟议的脱氮技术是模块化的，适用于处理个人家庭、社区系统和商业机构废水的小规模系统。该项目采用了一种创新的生物脱氮工艺，该工艺将在农村、城郊和城市环境中进行验证和优化，以实现高优先级应用。该系统机械简单，不产生废物，并且以最少的维护、能源或消耗品被动地运行。 该项目的成果将有助于解决氮控制的关键挑战，提供一个高效，低成本，可商业化的系统，适用于新的和改造系统中的现场废水处理。该项目第一阶段研究项目的技术目标是设计，建造，现场测试和严格评估创新生物反应器系统的变体原型，以去除现场废水中的氮。 原型生物反应器将进行数月的运行和监测，以研究其显着的操作特征并定义有效的设计和处理方案。 将安装生物反应器，在现场条件下处理真实的家庭废水。 氮分析物将在整个生物反应器系统中进行监测，以描述生物处理对四种氮物质的影响：有机氮，铵，硝酸盐和亚硝酸盐。 生物处理系统对化学和生化需氧量，无机化学参数和其他感兴趣的废水成分的影响也将得到阐明。 该项目将严格评估总氮去除的有效性以及单个氮去除转型的稳定性和弹性。 这项工作将确认脱氮工艺的寿命和稳健性，并确定优化创新方法的设计和操作参数，以从现场废水中去除总氮，同时减少氮向环境的释放。 原型设计和监测将有助于将结果扩大到全面的生物处理系统。