White D, Schmidtke T, Woolard C
Civil and Environmental Engineering, University of Alaska Fairbanks, 248 Duckering, Fairbanks, AK 99775-5900, USA.
J Hazard Mater. 1999 Jun 30;67(3):313-23. doi: 10.1016/s0304-3894(99)00046-1.
Child's Pad is a gravel construction pad that was contaminated with petroleum during oil-field service operations in Deadhorse, AK. As part of a remedial action plan, a buffer strip of uncontaminated sandy gravel was placed along certain sections of the pad boundary. A peroxygen formulation manufactured by Regenesis Copyright, sold as Oxygen Release Compound (ORC(R)), was placed in the buffer strips. The ORC was intended to supply oxygen to aerobic microorganisms capable of degrading petroleum. Tests were conducted in a 1/2 scale laboratory cell to determine the oxygen release characteristics of the ORC when subjected to expected subsurface flow rates of up to 0. 02 l/s (6.9 m/day). In laboratory tests, a zone of enhanced oxygen concentration was formed down-gradient from the ORC socks. Only during periods when the flow rate was less than 0.01-0.015 l/s (3. 5-5.2 m/day) was ORC-oxygen observed at monitoring points up-gradient or directly cross-gradient of the ORC. Conclusions from the laboratory study were that ORC may provide an aerobic zone in the Child's Pad barrier as far as 1 m directly down-gradient of the sock during periods of high flows (6.9 m/day). Copyright 1999 Elsevier Science B.V.
儿童垫是阿拉斯加州死马镇油田服务作业期间被石油污染的砾石施工垫。作为补救行动计划的一部分，在垫边界的某些部分沿线设置了一条未受污染的砂质砾石缓冲带。将由Regenesis Copyright生产、以氧气释放化合物（ORC®）销售的过氧配方产品放置在缓冲带中。ORC旨在为能够降解石油的好氧微生物提供氧气。在一个1/2比例的实验室单元中进行了测试，以确定在高达0.02升/秒（6.9米/天）的预期地下流速下ORC的氧气释放特性。在实验室测试中，在ORC袜带的下游形成了一个氧气浓度增加的区域。只有当流速小于0.01 - 0.015升/秒（3.5 - 5.2米/天）时，才在ORC上游或直接横向于ORC的监测点观察到ORC产生的氧气。实验室研究的结论是，在高流量（6.9米/天）期间，ORC可能在儿童垫屏障中在袜带正下方1米处形成一个好氧区。版权所有1999年爱思唯尔科学出版社B.V.
