火龙果废弃物在微生物燃料电池发电处理金属污染废水中的作用

IF 3 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES
A. A. Yaqoob, N. N. M. Daud, M. H. Hussin, M. N. M. Ibrahim, M. K. Al-Sadoon, R. M. I. Abdulrahman
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引用次数: 0

摘要

被称为微生物燃料电池(MFC)的绿色技术可以同时提供废水处理和可持续能源。尽管已经有了实质性的进步,但这项技术仍然存在许多重要的问题。我们在这里提出的研究涵盖了有机基质MFC的挑战。在之前的研究中,人们强烈建议将水果废料作为碳的来源。鉴于此,本研究以火龙果废料为底物。在22天内,该研究实现了165 mV的电压和1.98 mW/m2的功率密度。对Cr3+和Pb2+的去除率分别为85.39 ~ 87.91%。操作过程中始终以恒定1000ῼ电阻进行,而内阻测定值为694ῼ。此外,阳极生物膜细菌鉴定表明,芽孢杆菌型细菌如硝化还原芽孢杆菌、根孢假杆菌和副肠炎芽孢杆菌是目前MFC操作的优势菌种。此外,对该研究提出的机制进行了全面的描述,该机制以金属离子去除过程为中心。最后,还包括机制、挑战和未来的评论。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Role of dragon fruit waste (DFW) in microbial fuel cell to treat metal-polluted wastewater with electricity generation

Green technology, known as the microbial fuel cell (MFC), offers wastewater treatment and sustainable power simultaneously. Although there have been substantial advancements, there are still a number of important problems with this technique. Our study presented here has covered the organic substrate challenge of MFC. In prior studies, there was a strong recommendation that fruit waste be used as a source of carbon. In light of this, the waste from dragon fruit was used as a substrate in the present investigation. In 22 days, the study achieved a voltage of 165 mV and a power density of 1.98 mW/m2. Additionally, the removal percentage of Cr3+ and Pb2+ is around 85.39–87.91%, respectively. The operation was carried out with constant 1000 ῼ resistance at all times, whereas the determination of the internal resistance was 694 ῼ. Furthermore, bacterial identification from anodic biofilm indicated that Bacillus-type species such as Bacillus nitratireducens, Pseudoneobacillus rhizosphaerae, and Bacillus paramobilis are the dominant species in the present MFC operation. Furthermore, a thorough description of the investigation’s proposed mechanism—which centers on the metal ion removal process—is given. Finally, mechanism, challenges, and future comments are also included.

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来源期刊
CiteScore
5.60
自引率
6.50%
发文量
806
审稿时长
10.8 months
期刊介绍: International Journal of Environmental Science and Technology (IJEST) is an international scholarly refereed research journal which aims to promote the theory and practice of environmental science and technology, innovation, engineering and management. A broad outline of the journal''s scope includes: peer reviewed original research articles, case and technical reports, reviews and analyses papers, short communications and notes to the editor, in interdisciplinary information on the practice and status of research in environmental science and technology, both natural and man made. The main aspects of research areas include, but are not exclusive to; environmental chemistry and biology, environments pollution control and abatement technology, transport and fate of pollutants in the environment, concentrations and dispersion of wastes in air, water, and soil, point and non-point sources pollution, heavy metals and organic compounds in the environment, atmospheric pollutants and trace gases, solid and hazardous waste management; soil biodegradation and bioremediation of contaminated sites; environmental impact assessment, industrial ecology, ecological and human risk assessment; improved energy management and auditing efficiency and environmental standards and criteria.
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