Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany.
Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany.
Sci Total Environ. 2016 Sep 1;563-564:641-8. doi: 10.1016/j.scitotenv.2015.07.107. Epub 2015 Aug 20.
In a first pilot-scale field test the use of Carbo-Iron® was successfully demonstrated. Carbo-Iron was developed with the goal to overcome significant shortcomings of nanoscale zero-valent iron (NZVI) for in-situ groundwater remediation. The composite material of colloidal activated carbon and embedded nanoiron structures has been tested for the remediation of a tetrachloroethene (PCE) contaminated field site in Lower Saxony, Germany. The results of the two-step field test confirmed the properties intended by its design and the particle performance achieved in the laboratory experiments. The material showed transport lengths of several metres in the field and fast PCE decomposition with no vinyl chloride formation. Extended longevity of the PCE decrease in the treated area and evidence for microbiological participation were found. Carbo-Iron is now under study in the framework of the EU-project NanoREM where its performance is being further optimized at various scales from laboratory via large-scale tank to field testing. Targeted property adjustment was successful for Carbo-Iron performance in both directions: plume treatment and source attack.
在首次中试规模的现场测试中，成功展示了 Carbo-Iron® 的应用。Carbo-Iron 的开发目标是克服纳米零价铁（NZVI）在原位地下水修复方面的重大缺陷。这种胶体活性炭和嵌入纳米铁结构的复合材料已在德国下萨克森州的一个四氯乙烯（PCE）污染现场进行了修复测试。两步法现场测试的结果证实了该设计预期的特性和实验室实验中达到的颗粒性能。该材料在现场表现出数米的传输长度，且 PCE 分解速度快，没有形成氯乙烯。在处理区域发现了 PCE 减少的延长寿命和微生物参与的证据。Carbo-Iron 目前正在欧盟项目 NanoREM 的框架内进行研究，正在从实验室通过大型罐到现场测试的各个规模上进一步优化其性能。针对 Carbo-Iron 在两个方向上的性能：污染羽处理和源头攻击，进行了有针对性的性能调整，均取得了成功。
