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Economic potential of bioremediation using immobilized microalgae-based microbial fuel cells

机译:使用固定化的微藻基微生物燃料电池生物修复的经济潜力

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摘要

The cathodic microalgae-based MFC converts the nutrients within wastewater and produces oxygen as oxygen supply for cathodic reactions, leading to the reduction of aeration cost. Continuous energy supplies are secured via the studied technology to solve overloaded nutrient and toxic substances discharge into environment, in a sustainable approach. Electricity and biomass produced are sellable as bioenergy and bioproducts, having the potential to generate more income compared to traditional MFC. As result, Chlorella sp. G29-5 has the best performance of nutrient removal, growth and electricity generation compared to other microalgae strains, using immobilized fructose sludge as anode. Immobilized anaerobic inoculum showed higher efficiency on electricity generation compared to suspended anaerobic inoculum. This technology has fully utilized bacteria from sludge and swine manure as microalgae nutrient and generating electricity as output. Cost estimation of other MFC has been included as a reference compared to the current technologies. The capital cost per power generated for this study is $490.46/mW, which is comparatively higher than other systems without concerning the extra income of microalgae biomass generated and nutrient recovered. Replacing expensive catalyst with microalgae is potential to reduce production cost required for MFC and treat wastewater, benefitting the wastewater treatment and power sectors. Consumption of nutrients by microalgae leads to efficient COD removal and aids in controlling severe soil and water pollution.
机译:基于阴极微藻的MFC将营养物质转化为废水中的营养物,并产生氧气作为阴极反应的氧气供应,导致曝气成本的降低。通过研究技术可靠地保护连续能量供应,以可持续的方法解决过载的营养素和有毒物质排放到环境中。产生的电力和生物质是作为生物能源和生物制作的销售,与传统的MFC相比,有可能产生更多收入。结果,小球藻SP。 G29-5与其他微藻菌株相比,使用固定化的果糖污泥与阳极相比,营养去除,生长和发电的最佳性能。与悬浮的厌氧接种物相比,固定的厌氧鞘膜显示出较高的发电效率。该技术充分利用了污泥和猪粪的细菌,作为微藻营养素和发电作为输出。与当前技术相比,其他MFC的成本估算已作为参考。本研究产生的每个权力的资本成本为490.46 / mW,比其他系统相对较高,而无需关于Microalgae生物量产生和营养的额外收入。用微藻替代昂贵的催化剂是降低MFC和治疗废水所需的生产成本,使废水处理和电力部门有益。微藻消耗营养素导致有效的鳕鱼去除和有助于控制严重的土壤和水污染。

著录项

  • 来源
    《Clean technologies and environmental policy》 |2021年第8期|2251-2264|共14页
  • 作者单位

    Department of BioIndustry Technology Da-Yeh University Changhwa Taiwan;

    Green Energy and Biotechnology Industry Research Center Feng Chia University Taichung 40724 Taiwan Master's Program of Green Energy Science and Technology Feng Chia University Taichung Taiwan;

    Institute of Sustainable Energy Universiti Tenaga Nasional (UNITEN) Jalan IKRAM-UNITEN 43000 Kajang Selangor Malaysia;

    School of Energy and Chemical Engineering Xiamen University Malaysia 43900 Sepang Selangor Malaysia;

    Department of Chemical and Environmental Engineering Faculty of Science and Engineering University of Nottingham Malaysia 43500 Semenyih Selangor Malaysia;

    Department of Environmental Engineering National Chung Hsing University Taichung 40224 Taiwan;

    Department of Landscape Architecture Chung Chou University of Science and Technology Changhwa Taiwan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Microbial fuel cells; Immobilization; Microalgae; Swine manure; Sludge;

    机译:微生物燃料电池;固定化;微藻;猪粪;污泥;

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