摘要翻译:
地下水重金属污染是一个严重的环境问题,原位修复往往是唯一可行的处理方案。对于这种干预措施,相关生物地球化学过程的三维反应迁移模型是非常宝贵的。为此,我们开发了一个原位处理模型CHROTRAN,该模型包括五个物种的全动力学:一种被修复的重金属,一种电子供体,一种生物量,一种无毒的保守生物抑制剂和一种生物杀灭剂。模拟了供体-金属相互作用的直接非生物还原以及供体驱动的生物生长和生物还原,以及供体吸附、生物污染和生物死亡等关键过程。我们的软件实现处理非均匀流场,任意多个化学物种和修正注入点,并具有流动和反应输送之间的完全耦合。我们描述了安装和使用,并给出了两个示例模拟演示其独特的功能。一个模拟提出了一种非正统的方法来修复铬(VI)污染。
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英文标题:
《CHROTRAN: A mathematical and computational model for in situ heavy metal
  remediation in heterogeneous aquifers》
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作者:
Scott K. Hansen and Sachin Pandey and Satish Karra and Velimir V.
  Vesselinov
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最新提交年份:
2017
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分类信息:
一级分类:Quantitative Biology        数量生物学
二级分类:Other Quantitative Biology        其他定量生物学
分类描述:Work in quantitative biology that does not fit into the other q-bio classifications
不适合其他q-bio分类的定量生物学工作
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英文摘要:
  Groundwater contamination by heavy metals is a critical environmental problem for which in situ remediation is frequently the only viable treatment option. For such interventions, a three-dimensional reactive transport model of relevant biogeochemical processes is invaluable. To this end, we developed a model, CHROTRAN, for in situ treatment, which includes full dynamics for five species: a heavy metal to be remediated, an electron donor, biomass, a nontoxic conservative bio-inhibitor, and a biocide. Direct abiotic reduction by donor-metal interaction as well as donor-driven biomass growth and bio-reduction are modeled, along with crucial processes such as donor sorption, bio-fouling and biomass death. Our software implementation handles heterogeneous flow fields, arbitrarily many chemical species and amendment injection points, and features full coupling between flow and reactive transport. We describe installation and usage and present two example simulations demonstrating its unique capabilities. One simulation suggests an unorthodox approach to remediation of Cr(VI) contamination. 
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PDF链接:
https://arxiv.org/pdf/1703.01381