Role of Biogeochemical Processes during Groundwater Deferrization

IF 0.7 4区地球科学 Q4 GEOCHEMISTRY & GEOPHYSICS

Geochemistry International Pub Date : 2023-11-15 DOI:10.1134/S0016702923100075

Z. N. Litvinenko, L. M. Kondratyeva

引用次数: 0

Abstract—The paper is devoted to the biogeochemical aspects of the treatment of iron-bearing groundwater, which are associated with the formation of biofouling in the pore space around wells after aeration of the aquifer and on technological equipment. Structure and activity characteristics of microbial complexes as a result of pumping groundwater from production and observation wells under changing redox conditions are presented. Scanning electron microscopy was used to study the microstructure and elemental composition of biofilm growths. It has been established that the accumulation of iron and manganese by microbial biomass occurs due to the encrustation of the surface of bacterial cells immersed in a polymer matrix represented by a constant base of three elements: Al, Si, and Ca. The survival of microbial complexes in biofouling is due to the high natural potential and ability to carry out biogeochemical processes in a wide range of oxygen concentrations (aerobic and anaerobic conditions).

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生物地球化学过程在地下水去铁过程中的作用

摘要:本文从生物地球化学的角度对含铁地下水的处理进行了研究。含铁地下水与含水层曝气后井周围孔隙空间中生物污垢的形成有关，并在工艺设备上进行了探讨。本文介绍了在不同氧化还原条件下从生产井和观测井抽取地下水所产生的微生物复合物的结构和活性特征。利用扫描电子显微镜研究了生物膜生长的微观结构和元素组成。已经确定，微生物生物量对铁和锰的积累是由于细菌细胞表面的结壳，这些细菌细胞浸泡在由三种元素(Al, Si和Ca)组成的恒定碱的聚合物基质中。微生物复合物在生物污垢中的生存是由于其高自然电位和在大范围的氧浓度(好氧和厌氧条件)下进行生物地球化学过程的能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Geochemistry International 地学-地球化学与地球物理

CiteScore

1.60

自引率

12.50%

发文量

审稿时长

1 months

期刊介绍： Geochemistry International is a peer reviewed journal that publishes articles on cosmochemistry; geochemistry of magmatic, metamorphic, hydrothermal, and sedimentary processes; isotope geochemistry; organic geochemistry; applied geochemistry; and chemistry of the environment. Geochemistry International provides readers with a unique opportunity to refine their understanding of the geology of the vast territory of the Eurasian continent. The journal welcomes manuscripts from all countries in the English or Russian language.