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嗜极微生物对阿根廷废弃的潘德阿苏卡尔矿酸性矿山排水产生的影响

Influence of Extremophiles on the Generation of Acid Mine Drainage at the Abandoned Pan de Azúcar Mine (Argentina).

作者信息

Plaza-Cazón Josefina, Benítez Leonardo, Murray Jésica, Kirschbaum Pablo, Donati Edgardo

机构信息

Centro de Investigación y Desarrollo en Fermentaciones Industriales, CINDEFI (CCT La Plata-CONICET, UNLP), Facultad de Ciencias Exactas, 50 y 115, La Plata 1900, Argentina.

Instituto de Bio y Geociencias del NOA (IBIGEO), CONICET-UNSa Av. 9 de Julio 14, Rosario de Lerma 4405, Argentina.

出版信息

Microorganisms. 2021 Jan 29;9(2):281. doi: 10.3390/microorganisms9020281.

DOI:10.3390/microorganisms9020281
PMID:33573035
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7912565/
Abstract

The risk of generation of acid drainages in the tailings of the Pan de Azúcar mine that closed its activities more than three decades ago, was evaluated through biooxidation studies using iron- and sulfur-oxidizing extremophilic leaching consortia. Most of tailings showed a high potential for generating acid drainage, in agreement with the results from net acid generation (NAG) assays. In addition, molecular analysis of the microbial consortia obtained by enrichment of the samples, demonstrated that native leaching microorganisms are ubiquitous in the area and they seemed to be more efficient in the biooxidation of the tailings than the collection microorganisms. The acid drainages detected at the site and those formed by oxidation of the tailings, produced a significant ecotoxicological effect demonstrated by a bioassay. These drainages, even at high dilutions, could seriously affect a nearby Ramsar site (Laguna de Pozuelos) that is connected to the Pan de Azúcar mine through a hydrological route (Cincel River).

摘要

三十多年前就已停止运营的潘德阿苏卡尔矿尾矿产生酸性排水的风险，通过使用铁和硫氧化嗜极浸出菌群的生物氧化研究进行了评估。大多数尾矿显示出产生酸性排水的高潜力，这与净酸生成（NAG）试验的结果一致。此外，对通过富集样品获得的微生物菌群的分子分析表明，本地浸出微生物在该地区无处不在，并且它们在尾矿的生物氧化中似乎比采集的微生物更有效。在该地点检测到的酸性排水以及由尾矿氧化形成的排水，通过生物测定法证明产生了显著的生态毒理学效应。这些排水即使在高度稀释的情况下，也可能严重影响附近的拉姆萨尔湿地（波苏埃洛斯湖），该湿地通过水文路径（辛塞尔河）与潘德阿苏卡尔矿相连。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/697ca79dadf9/microorganisms-09-00281-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/5701051a27fc/microorganisms-09-00281-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/c96a6042e327/microorganisms-09-00281-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/10b8dc5d9a4d/microorganisms-09-00281-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/a1f43574f848/microorganisms-09-00281-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/98d2f8a4dd50/microorganisms-09-00281-g005a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/479fee29c9f1/microorganisms-09-00281-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/27a6b31b6db8/microorganisms-09-00281-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/697ca79dadf9/microorganisms-09-00281-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/5701051a27fc/microorganisms-09-00281-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/c96a6042e327/microorganisms-09-00281-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/10b8dc5d9a4d/microorganisms-09-00281-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/a1f43574f848/microorganisms-09-00281-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/98d2f8a4dd50/microorganisms-09-00281-g005a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/479fee29c9f1/microorganisms-09-00281-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/27a6b31b6db8/microorganisms-09-00281-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a6a3/7912565/697ca79dadf9/microorganisms-09-00281-g008.jpg

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本文引用的文献

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Biological remediation of acid mine drainage: Review of past trends and current outlook.酸性矿山废水的生物修复：过去趋势与当前展望综述
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Contrasting seasonal variations of geochemistry and microbial community in two adjacent acid mine drainage lakes in Anhui Province, China.
对比中国安徽省两个相邻酸性矿山排水湖中地球化学和微生物群落的季节性变化。
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