Application of Benthic Microbial Fuel Cells in Systems of Year-Round Monitoring of Water Environment Parameters

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-01-08 DOI:10.1134/s0001437023060164

N. N. Volchenko, A. A. Lazukin, S. I. Maslennikov, A. A. Pakhlevanyan, A. A. Samkov, A. A. Khudokormov

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Abstract

The bioelectrogenic activity of sediments of the natural microbial assemblage of Peter the Great Bay, Sea of Japan, was studied in a year-round experiment with parallel temperature, illumination, and water electrical conductivity monitoring using benthic microbial fuel cells (MFC) and automatic online monitoring. Several variants of underwater devices, including benthic microbial fuel cells, monitoring water environment sensor, information collection and transmission systems, have been developed. This device has an electrical voltage of up to 216 mV and a specific power of up to 239 mW/m². The electrogenic activity of natural microflora depends on water temperature and reaches a maximum in summer with a temperature of about 20–25°C. The introduction of toxicants such as hydrocarbons and cadmium into sludge led to suppression of microbial electrogenesis. However, the introduction of inductor substances of microbial sulfidogenesis stimulated microbial electrogenesis. The possibility of functioning of the benthic MFC in the field of Peter the Great Bay in different climate periods is shown. It is demonstrated that such experimental devices can be a basis for autonomous stations monitoring the state of the marine environment over a long time period and in a wide range of changing conditions. Automatic recording of water temperature, illumination, and salinity with a frequency of 48 times a day was done over 13 months (November 28, 2019–December 31, 2020). The electrogenic activity of this microbiota upon MFC scaling can potentially become a new renewable energy source for low-power marine electronics, including those used in mariculture.

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底栖微生物燃料电池在水环境参数全年监测系统中的应用

摘要利用底栖微生物燃料电池（MFC）和自动在线监测系统，在温度、光照和水电导率平行监测的全年实验中，研究了日本海彼得大帝湾天然微生物群沉积物的生物电源活性。目前已开发出多种水下装置，包括底栖微生物燃料电池、水环境监测传感器、信息收集和传输系统。这种装置的电压高达 216 mV，比功率高达 239 mW/m2。天然微生物菌群的电能活性取决于水温，在温度约为 20-25°C 的夏季达到最高值。在污泥中引入碳氢化合物和镉等有毒物质会抑制微生物的电生作用。然而，引入微生物硫化物生成的诱导物质则会刺激微生物电生成。研究表明，底栖 MFC 可在彼得大帝湾不同气候时期发挥作用。实验证明，这种实验装置可以作为自主监测站的基础，监测长时间和各种变化条件下的海洋环境状况。在 13 个月内（2019 年 11 月 28 日至 2020 年 12 月 31 日），每天以 48 次的频率自动记录水温、光照和盐度。这种微生物群在 MFC 扩增后的电能活性有可能成为低功率海洋电子设备（包括海产养殖中使用的电子设备）的一种新的可再生能源。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.