Water Research Institute, C.N.R, Via Salaria km 29, Monterotondo Stazione, Rome, Italy.
Biotechnol Lett. 2012 Nov;34(11):2037-42. doi: 10.1007/s10529-012-1013-5. Epub 2012 Jul 25.
Used automobile tire pieces were tested for their suitability as the sequestering phase in a two-phase partitioning bioreactor to treat 2,4-dichlorophenol (DCP). Abiotic sorption tests and equilibrium partitioning tests confirmed that tire "crumble" possesses very favourable properties for this application with DCP diffusivity (4.8 × 10(-8) cm(2)/s) and partition coefficient (31) values comparable to those of commercially available polymers. Biodegradation tests further validated the effectiveness of using waste tires to detoxify a DCP solution, and allow for enhanced biodegradation compared to conventional single-phase operation. These results establish the potential of using a low-cost waste material to assist in the bioremediation of a toxic aqueous contaminant.
废旧汽车轮胎碎片被测试其是否适合作为两相分配生物反应器的隔离相，以处理 2,4-二氯苯酚（DCP）。非生物吸附测试和平衡分配测试证实，轮胎“碎屑”具有非常适合这种应用的特性，DCP 的扩散系数（4.8×10^(-8)cm^2/s）和分配系数（31）值与市售聚合物相当。生物降解测试进一步验证了使用废轮胎使 DCP 溶液解毒的有效性，并允许与传统的单相操作相比增强生物降解。这些结果表明，使用低成本的废料来辅助有毒水污染物的生物修复具有潜力。
