SBIR Phase II: Remediation of recalcitrant and emerging environmental organic contaminants of concern using bacterial approaches

这一小企业创新研究（SBIR）项目的更广泛影响/商业潜力正在解决修复土壤和沉积物中有毒有机污染物的关键社会需求。拟议的技术将使许多受污染场地的环境目标得以实现，这些场地的补救目前受到高成本的限制。这项技术将有助于重新开发数十亿美元的真实的房地产，使房地产恢复生产和适当的用途。混合细菌强化和热技术提供了一个模型，用于其他细菌的额外系统，特别适合于新出现的污染物和水处理的应用，该项目建议将细菌处理商业化，用于降解土壤和沉积物等环境基质中的有机污染物。在第一阶段评估的热增强生物强化技术是基于一种新的细菌菌株及其酶，该菌株及其酶在高温下发挥作用，能够降解各种环基有机污染物，包括难以修复的氯化形式。对受总石油烃（TPH）污染的土壤进行的试点测试表明，TPH和EPA优先污染物清单上的较重的多环芳烃（PaH）都发生了降解。第二阶段的目标是扩大这些初步研究的全面商业规模的100至1000吨的土壤，通过与建立环境工程公司在大量的热处理的丰富经验。为了使这项新技术完全商业化，生物制剂的生产能力也将扩大一个数量级以上。该技术将被应用在非原位和原位的过程evolutions.This奖项反映了NSF的法定使命，并已被认为是值得的支持，通过评估使用基金会的知识价值和更广泛的影响审查标准。

The broader impact/commercial potential of this Small Business Innovation Research (SBIR) project is addressing the critical societal need to remediate toxic organic pollutants in soils and sediments. The proposed technology would enable environmental goals to be met on many contaminated sites whose remediation is currently limited by high costs. The technology would contribute to the re-development of many billions of dollars in real estate by returning properties to productive and appropriate use. The hybrid bacterial augmentation and thermal technology provides a model for additional systems with other bacteria uniquely suited to applications in emerging contaminants and water treatment.This project proposes to commercialize a bacterial treatment for the degradation of organic contaminants of concern in environmental matrices such as soils and sediments. The thermally-enhanced bioaugmentation technology evaluated in Phase I is based on a novel bacterial strain and its enzymes that function at elevated temperatures and are capable of degrading a variety of ring based, organic pollutants, including chlorinated forms difficult to remediate. Pilot tests on soils contaminated with Total Petroleum Hydrocarbons (TPH) demonstrated degradation for both TPH and for the heavier poly-aromatic hydrocarbons (PaHs) on the EPA's list of priority pollutants. Phase II goals are to expand these initial studies to the full commercial scale of 100s to 1000s of tons of soil by working with established environmental engineering firms with extensive experience in thermal treatments of large volumes. To fully commercialize this new technology, the production capacity for the biological agents also will be scaled up by over an order of magnitude. The technology will be applied both ex-situ and in-situ as the process evolves.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.