Enhanced bioenergy recovery by innovative application of chia seeds nanopowder for anode modification in microbial fuel cell treating hospital wastewater.

IF 2.2 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Waad M A Abbas, Zainab Z Ismail
{"title":"Enhanced bioenergy recovery by innovative application of chia seeds nanopowder for anode modification in microbial fuel cell treating hospital wastewater.","authors":"Waad M A Abbas, Zainab Z Ismail","doi":"10.1080/09593330.2024.2432481","DOIUrl":null,"url":null,"abstract":"<p><p>Microbial fuel cells (MFCs) are new bioelectrochemical techniques for conversion of organic waste materials into energy depending on the metabolic activity of the anodic biofilm, which acts as the biocatalyst in the anode compartment. Hence, the anode material is a priority for better growth of bacterial species and electrical conductivity as well. In this study, an innovative application of Chia seeds nanopowder (CSNP) was carried out for the first time with acid-activated multiwall carbon nanotubes (functionalised MWCNTs) for anode nanomodification by overlaying the surfaces of the graphite anodes (GA) in MFCs fuelled with real hospital wastewater (HWW). Two tubular-enclosed dual-chamber MFCs were constructed, setup and operated in a continuous mode for 3 months. MFC1 was assembled with CSNP/MWCNTs-GA, whereby MFC2 was assembled with MWCNTs-GA. The results revealed higher power output up to 2202.73 mW/m<sup>3</sup> observed in MFC1 compared to 1271.57 mW/m<sup>3</sup> in MFC2. The efficiencies of organic content (COD) removal were 86.1% and 82.9% obtained in MFC1 and MFC2, respectively. Although both efficiencies of COD removal were relatively comparable, however, a remarkable increase in COD removal efficiency was achieved in MFC1. These observations indicated the potential role of CSNP for enhancing the biofilm growth and increasing the electrode conductivity.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"1-12"},"PeriodicalIF":2.2000,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Technology","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1080/09593330.2024.2432481","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0

Abstract

Microbial fuel cells (MFCs) are new bioelectrochemical techniques for conversion of organic waste materials into energy depending on the metabolic activity of the anodic biofilm, which acts as the biocatalyst in the anode compartment. Hence, the anode material is a priority for better growth of bacterial species and electrical conductivity as well. In this study, an innovative application of Chia seeds nanopowder (CSNP) was carried out for the first time with acid-activated multiwall carbon nanotubes (functionalised MWCNTs) for anode nanomodification by overlaying the surfaces of the graphite anodes (GA) in MFCs fuelled with real hospital wastewater (HWW). Two tubular-enclosed dual-chamber MFCs were constructed, setup and operated in a continuous mode for 3 months. MFC1 was assembled with CSNP/MWCNTs-GA, whereby MFC2 was assembled with MWCNTs-GA. The results revealed higher power output up to 2202.73 mW/m3 observed in MFC1 compared to 1271.57 mW/m3 in MFC2. The efficiencies of organic content (COD) removal were 86.1% and 82.9% obtained in MFC1 and MFC2, respectively. Although both efficiencies of COD removal were relatively comparable, however, a remarkable increase in COD removal efficiency was achieved in MFC1. These observations indicated the potential role of CSNP for enhancing the biofilm growth and increasing the electrode conductivity.

奇亚籽纳米粉阳极改性在微生物燃料电池处理医院废水中提高生物能源回收率的创新应用。
微生物燃料电池(MFCs)是一种新的生物电化学技术,它依靠阳极生物膜的代谢活性将有机废物转化为能量,而阳极生物膜在阳极室中充当生物催化剂。因此,阳极材料对于细菌种类的更好生长和电导率也是优先考虑的。在这项研究中,首次将奇亚籽纳米粉(CSNP)与酸活化的多壁碳纳米管(功能化的MWCNTs)结合起来,通过覆盖石墨阳极(GA)的表面,在以真实医院废水(HWW)为燃料的mfc中进行阳极纳米改性。两个管封闭双室mfc在连续模式下建造、安装和运行了3个月。MFC1用CSNP/MWCNTs-GA组装,MFC2用MWCNTs-GA组装。结果显示,MFC1的输出功率高达2202.73 mW/m3,而MFC2的输出功率为1271.57 mW/m3。MFC1和MFC2的COD去除率分别为86.1%和82.9%。虽然两者的COD去除率相对相当,但MFC1的COD去除率显著提高。这些结果表明CSNP在促进生物膜生长和提高电极电导率方面具有潜在的作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Environmental Technology
Environmental Technology 环境科学-环境科学
CiteScore
6.50
自引率
3.60%
发文量
0
审稿时长
4 months
期刊介绍: Environmental Technology is a leading journal for the rapid publication of science and technology papers on a wide range of topics in applied environmental studies, from environmental engineering to environmental biotechnology, the circular economy, municipal and industrial wastewater management, drinking-water treatment, air- and water-pollution control, solid-waste management, industrial hygiene and associated technologies. Environmental Technology is intended to provide rapid publication of new developments in environmental technology. The journal has an international readership with a broad scientific base. Contributions will be accepted from scientists and engineers in industry, government and universities. Accepted manuscripts are generally published within four months. Please note that Environmental Technology does not publish any review papers unless for a specified special issue which is decided by the Editor. Please do submit your review papers to our sister journal Environmental Technology Reviews at http://www.tandfonline.com/toc/tetr20/current
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信