Field-scale demonstration of enhanced MTBE bioremediation through aquifer bioaugmentation and oxygenation.
Field-scale demonstration of enhanced MTBE bioremediation through aquifer bioaugmentation and oxygenation.
复制标题
DOI：
10.1021/es000925e
复制
发表时间：
2000-08
影响因子：
11.4
通讯作者：
J. Salanitro;Paul C. Johnson;G. Spinnler;P. Maner;H. Wisniewski;C. L. Bruce
中科院分区：
文献类型：
--
作者：
J. Salanitro;Paul C. Johnson;G. Spinnler;P. Maner;H. Wisniewski;C. L. Bruce
原位生物强化和生物刺激实验是在加利福尼亚州怀尼米港 (PH) 的 USN 碳氢化合物国家环境试验场进行的，其中溶解的 MTBE 地下水羽流长度超过 1500 米。用PH地下水制备的实验室微观实验表明，接种高活性MTBE降解菌群（MC-100）后，MTBE迅速代谢（t1/2≤2周）。微观世界研究还表明，PH 值下存在天然醚降解剂；然而，其速度比生物强化治疗慢 3-5 倍。进行现场中试是为了评估通过接种 MC-100 并维持充氧条件来创建 MTBE 生物屏障的功效。位于羽流仅 MTBE 部分的三个测试区包括对照（未处理）、仅 O2（间歇性注入 O2 气体）和 O2 + 生物增强 (MC-100) 区域。处理前地块中的初始 MTBE 和溶解氧 (DO) 浓度在 2 至 9 m 之间变化...
In situ bioaugmentation and biostimulation experiments were conducted at the USN Hydrocarbon National Environmental Test Site at Port Hueneme, CA (PH), where the dissolved MTBE groundwater plume is over 1500 m long. Laboratory microcosm experiments prepared with PH groundwater showed that MTBE was rapidly metabolized (t1/2 ≤ 2 weeks) after inoculation with a high-activity MTBE-degrading bacterial consortium (MC-100). Microcosm studies also showed that natural ether degraders were present at PH; however, the rates were 3−5 times slower than with the bioaugmented treatment. The field pilot test was conducted to assess the efficacy of creating an MTBE biobarrier by inoculating with MC-100 and maintaining well-oxygenated conditions. Three test plots located in the MTBE-only portion of the plume included control (no treatment), O2-only (intermittent O2 gas injection), and O2 + bioaugmented (MC-100) zones. Initial MTBE and dissolved oxygen (DO) concentrations in the plots prior to treatment varied from 2 to 9 m...