Uranium and arsenic bioremediation potential of plastic associated multi-metal tolerant Bacillus sp. EIKU23

IF 6.6 Q1 ENGINEERING, ENVIRONMENTAL Journal of hazardous materials letters Pub Date : 2023-12-29 DOI:10.1016/j.hazl.2023.100101
Atif Aziz Chowdhury , Nilendu Basak , Ekramul Islam
{"title":"Uranium and arsenic bioremediation potential of plastic associated multi-metal tolerant Bacillus sp. EIKU23","authors":"Atif Aziz Chowdhury ,&nbsp;Nilendu Basak ,&nbsp;Ekramul Islam","doi":"10.1016/j.hazl.2023.100101","DOIUrl":null,"url":null,"abstract":"<div><p>Plastic waste accumulation is a significant environmental concern as it promotes microbial growth and acts as a carrier for heavy metals. This study focuses on a <em>Bacillus</em> sp. strain isolated from the surface of a used plastic bottle, tolerant to various potential toxic elements (PTEs) such as chromium, nickel, cobalt, copper, zinc, arsenite [As(III)], but sensitive to uranium (U) and arsenate [As(V)] toxicity. The strain demonstrates growth under different abiotic stress conditions, with the optimal pH range of 5.0–8.0 and a temperature of 30 °C. It shows remarkable removal capabilities, removing &gt; 23.3% of U, &gt; 38% of As(III)), and &gt; 22.6% of As(V) from an initial dose of 100 mg L<sup>−1</sup> in an aqueous solution. The biosorption capacity for U, As(III), and As(V) is 3.12, 3.1, and 1.8 mg g<sup>−1</sup> of biomass, respectively. Kinetic modelling suggests that the biosorption of U and As(V) follows a pseudo-second-order mechanism, while As(III) biosorption follows a pseudo-first-order mechanism. Moreover, the strain has the ability to precipitate &gt; 38.1% and ∼67% of U using bacterially released phosphate from inorganic and organic sources, respectively. These findings highlight the strain's potential for bioremediation of PTE-contaminated environments, providing valuable insights for optimizing metal removal and immobilization processes in future research.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":null,"pages":null},"PeriodicalIF":6.6000,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911023000278/pdfft?md5=00aa0ff43d77569d99ac4894ac3b04a7&pid=1-s2.0-S2666911023000278-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of hazardous materials letters","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666911023000278","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
引用次数: 0

Abstract

Plastic waste accumulation is a significant environmental concern as it promotes microbial growth and acts as a carrier for heavy metals. This study focuses on a Bacillus sp. strain isolated from the surface of a used plastic bottle, tolerant to various potential toxic elements (PTEs) such as chromium, nickel, cobalt, copper, zinc, arsenite [As(III)], but sensitive to uranium (U) and arsenate [As(V)] toxicity. The strain demonstrates growth under different abiotic stress conditions, with the optimal pH range of 5.0–8.0 and a temperature of 30 °C. It shows remarkable removal capabilities, removing > 23.3% of U, > 38% of As(III)), and > 22.6% of As(V) from an initial dose of 100 mg L−1 in an aqueous solution. The biosorption capacity for U, As(III), and As(V) is 3.12, 3.1, and 1.8 mg g−1 of biomass, respectively. Kinetic modelling suggests that the biosorption of U and As(V) follows a pseudo-second-order mechanism, while As(III) biosorption follows a pseudo-first-order mechanism. Moreover, the strain has the ability to precipitate > 38.1% and ∼67% of U using bacterially released phosphate from inorganic and organic sources, respectively. These findings highlight the strain's potential for bioremediation of PTE-contaminated environments, providing valuable insights for optimizing metal removal and immobilization processes in future research.

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
与塑料相关的耐多金属芽孢杆菌 EIKU23 的铀和砷生物修复潜力
塑料垃圾会促进微生物的生长,并成为重金属的载体,因此塑料垃圾的积累是一个重大的环境问题。该菌株能耐受各种潜在有毒元素(PTEs),如铬、镍、钴、铜、锌、亚砷酸[As(III)],但对铀(U)和砷酸盐[As(V)]毒性敏感。该菌株可在不同的非生物胁迫条件下生长,最佳 pH 值范围为 5.0-8.0,温度为 30 °C。它显示出了卓越的去除能力,在初始剂量为 100 mg L-1 的水溶液中,它能去除 23.3% 的铀,38% 的 As(III),以及 22.6% 的 As(V)。生物质对铀、砷(III)和砷(V)的生物吸附容量分别为 3.12、3.1 和 1.8 mg g-1。动力学模型表明,U 和 As(V) 的生物吸附遵循伪二阶机制,而 As(III) 的生物吸附遵循伪一阶机制。此外,该菌株还能利用细菌从无机和有机来源释放的磷酸盐分别沉淀出 38.1% 和 67% 的铀。这些发现凸显了该菌株对受 PTE 污染的环境进行生物修复的潜力,为未来研究中优化金属去除和固定过程提供了宝贵的见解。
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 去求助
来源期刊
Journal of hazardous materials letters
Journal of hazardous materials letters Pollution, Health, Toxicology and Mutagenesis, Environmental Chemistry, Waste Management and Disposal, Environmental Engineering
CiteScore
10.30
自引率
0.00%
发文量
0
审稿时长
20 days
期刊最新文献
Cyanide and chloroform detection through J-aggregates based aggregation induced emission probe with real sample applications Dissolved elemental mercury accumulation by freshwater phytoplankton species: A pilot study Kinetic modeling and optimization of triclosan adsorption onto coconut shell activated carbon The role of environmentally relevant concentrations of oxytetracycline in the emergence of antimicrobial resistance in Aeromonas hydrophila and Edwardsiella tarda First evidence of microplastic-associated extended-spectrum beta-lactamase (ESBL)-producing bacteria in the Red River Delta, Vietnam
×
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
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1