SBIR Phase I: Bioremediation of Chlorinated Solvents in Saturated, Low Permeability Soils

这个小企业创新研究（SBIR）第一阶段项目将调查饱和，低渗透性土壤中的氯化溶剂污染问题。 第一阶段研究的具体目标是：（1）量化甲壳素作为电子供体促进还原脱氯和提高四氯乙烯（PCE和TCE）的生物利用度的有效性;（2）将甲壳素纳入为低渗透性土壤设计的输送系统;（3）评估现场输送方法。 初步研究表明，甲壳素可能是一个理想的候选人，以促进低成本，低维护的氯化溶剂残留源的生物修复。 甲壳质作为贝类工业的副产品，由于其非常普遍，因此特别有吸引力。 如果在第一阶段的柱和现场研究中获得了有利的结果，那么第二阶段的后续项目将进一步研究控制过程效率和寿命的机制。该项目的商业应用将在数百万美元的生物修复市场中进行。

This Small Business Innovation Research (SBIR) Phase I project will investigate the problem of chlorinated solvent contamination in saturated, low permeability soils. The specific objectives of Phase I research are : (1) to quantify the effectiveness of chitin as an electron donor facilitating reductive dechlorination and enhancing bioavailability of tetrachloroethylene (PCE and TCE); ( 2) to incorporate chitin into a delivery system designed for low permeability soils; and (3) to evaluate the delivery method in the field. Preliminary studies have shown that chitin may be an ideal candidate to facilitate low cost, low maintenance bioremediation of chlorinated solvent residual sources. Obtained as a byproduct from the shellfish industry, chitin is particularly attractive as it is very commonly available. If favorable results are obtained during Phase I column and field studies, then a follow on Phase II project will further examine mechanisms controlling process efficiency and longevity.The commercial applications of this project will be in the multi-million dollar bioremediation market.