电阻加热(ERH)在意大利一个活跃的工业基地修复氯化溶剂

IF 0.8 Q4 WATER RESOURCES
Piero Mori, James Baldock, Andrea Gigliuto, Mattia Cappelletti Zaffaroni, Cecilia Marino
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引用次数: 1

摘要

意大利立法规定了严格的地下水化学质量标准,适用于一个地点的下梯度属性边界,无论地下含水层是否或可能用于水资源目的。在某些情况下,监管机构可能会确定不那么严格的标准,但这种情况很少发生。这意味着,由于技术限制或时间限制,许多有地下水污染的地点可能无法达到严格的地下水标准,因此使用水力屏障进行管理;因此,对污染负有责任的各方往往决定无限期地继续运行这些水力屏障。本文介绍了在意大利使用电阻加热(ERH)进行源处理的首次应用,ERH是一种能够去除大部分污染物的修复技术,用于不用于供水的低产量含水层内的水力屏障。该技术的实施是可能的,因为震源区远离下坡场地边界,因此可以在合理的时间范围内在边界达到严格的质量标准。ERH系统在8个月的时间内回收了约600公斤污染物,并将受影响最严重地区的污染物浓度降低了90%以上。本文还强调,在类似的低产含水层中,在场地边界设置不那么严格的地下水标准,同时仍然保护下梯度受体,可能会促进意大利更广泛地实施源修复活动。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Remediation of chlorinated solvents with Electrical Resistance Heating (ERH) at an active industrial site in Italy
Italian legislation defines stringent groundwater chemical quality criteria, to be applied at a site’s downgradient property boundary, irrespective of whether the underlying aquifer is, or could be, used for water resource purposes. In some scenarios, the regulatory authorities may identify less stringent standards, but this rarely occurs. This means that many sites with groundwater contamination are managed using hydraulic barriers, as source zone remediation may not achieve the stringent groundwater standards required due to technology limits or time constraints; therefore, the parties responsible for contamination often decide to continue to operate these hydraulic barriers indefinitely. This article describes the first application in Italy of source treatment using Electrical Resistance Heating (ERH), a remediation technology capable of removing a large percentage of contaminant mass, at a site where a hydraulic barrier is operating within a low yielding aquifer that is not used for water supply. The implementation of this technology was possible since the source zone was far from the downgradient site boundary, thus making achievement of the stringent quality standards at the boundary possible within a reasonable timeframe. The ERH system recovered of about 600 kg of contaminants within a timeframe of 8 months and achieved a reduction of contaminant concentrations in the most impacted areas greater than 90%. This article also emphasizes that, in similar low yielding aquifers, setting less stringent groundwater standards at the site boundary whilst still protecting downgradient receptors may promote more widespread implementation of source remediation activities in Italy.
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来源期刊
CiteScore
1.80
自引率
50.00%
发文量
36
审稿时长
8 weeks
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