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Potential impact of CO_2 storage on subsurface microbial ecosystems and implications for groundwater quality

机译：CO_2储存对地下微生物生态系统的潜在影响及地下水质量的影响

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The success of carbon capture and storage (CCS) projects depends on the ability of storage sites to contain CO_2 without leakage and the ability to convince regulators and the general public in the safety of the technology. If leakage were to occur after formal closure of the injection site, this could be over small areas from discrete point sources, such as abandoned wells, resulting in localised high concentrations of CO_2 in near-surface ecosystems. Consequently, studies of the potential environmental consequences of CCS have focused on near-surface ecosystems and, as a result, environmental impacts of localised elevated CO_2 on terrestrial and marine ecosystems are areas of active research. However, a CO_2 storage site, in itself, could also impact on deep subsurface microbial ecosystem and biogeochemical processes, potentially affecting groundwater quality. Using a microbial energetics approach, the significance of these impacts can be scoped with a simple evaluation tool.
机译：碳捕获和储存（CCS）项目的成功取决于储存网站在没有泄漏的情况下遏制CO_2的能力，以及在技术安全方面说服监管机构和公众的能力。如果在注射部位正式关闭后发生泄漏，这可能是离散点源的小区域，例如废弃的井，导致近表面生态系统中的局部高浓度的CO_2。因此，CCS潜在环境后果的研究重点是近地面生态系统，因此，局部高架CO_2对陆地和海洋生态系统的环境影响是积极研究的领域。然而，本身可以影响CO_2存储场所也可能影响深度地下微生物生态系统和生物地球化学过程，可能影响地下水质量。使用微生物能量方法，可以使用简单的评估工具来控制这些影响的重要性。

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