Regeneration possibilities and application of magnetically modified biochar for heavy metals elimination in real conditions

IF 4.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry Pub Date : 2023-07-22 DOI:10.1016/j.wri.2023.100219

Michaela Tokarčíková , Pavlína Peikertová , Karla Čech Barabaszová , Ondřej Životský , Roman Gabor , Jana Seidlerová

{"title":"Regeneration possibilities and application of magnetically modified biochar for heavy metals elimination in real conditions","authors":"Michaela Tokarčíková , Pavlína Peikertová , Karla Čech Barabaszová , Ondřej Životský , Roman Gabor , Jana Seidlerová","doi":"10.1016/j.wri.2023.100219","DOIUrl":null,"url":null,"abstract":"<div><p>Although new types of composites with magnetic properties and high adsorption capacity for potentially toxic elements elimination are studied by researcherers, the information about the reusability, stability and removal efficiency of composites is still scarce or absent. Therefore, the aim of our work was applicate the sorbent to eliminate Zn(II), Cd(II) and Pb(II) ions from industrial waste leachates, and moreover, study the composite reusability and magnetic separation efficiency. Magnetically modified biochar was prepared from the fermentation residue of maise hybrid by a simple two-step method with microwave assistance. Composite properties, as well as the adsorption efficiency and magnetic response are depend on the extraction agent. The alkaline extraction agent showed the best properties for reusability and had no influence on Fe releasing from the composite, the adsorption efficiency was higher than 90% even in the 5<sup>th</sup> recycling cycle, and the composite remained magnetically active. The separation efficiency of composite from an aqueous environment by a magnet was higher than 95% within 15 min. Magnetically modified biochar proved to be an effective sorbent for metal ions elimination from wastewater.</p></div>","PeriodicalId":23714,"journal":{"name":"Water Resources and Industry","volume":"30 ","pages":"Article 100219"},"PeriodicalIF":4.5000,"publicationDate":"2023-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Water Resources and Industry","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2212371723000197","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"WATER RESOURCES","Score":null,"Total":0}

引用次数: 2

Abstract

Although new types of composites with magnetic properties and high adsorption capacity for potentially toxic elements elimination are studied by researcherers, the information about the reusability, stability and removal efficiency of composites is still scarce or absent. Therefore, the aim of our work was applicate the sorbent to eliminate Zn(II), Cd(II) and Pb(II) ions from industrial waste leachates, and moreover, study the composite reusability and magnetic separation efficiency. Magnetically modified biochar was prepared from the fermentation residue of maise hybrid by a simple two-step method with microwave assistance. Composite properties, as well as the adsorption efficiency and magnetic response are depend on the extraction agent. The alkaline extraction agent showed the best properties for reusability and had no influence on Fe releasing from the composite, the adsorption efficiency was higher than 90% even in the 5^th recycling cycle, and the composite remained magnetically active. The separation efficiency of composite from an aqueous environment by a magnet was higher than 95% within 15 min. Magnetically modified biochar proved to be an effective sorbent for metal ions elimination from wastewater.

Abstract Image

查看原文本刊更多论文

磁性改性生物炭在实际环境中去除重金属的再生可能性和应用

虽然研究人员已经研究了新型具有磁性和高吸附能力的去除潜在有毒元素的复合材料，但关于复合材料的可重复使用性、稳定性和去除效率的信息仍然很少或缺乏。因此，我们的工作目的是应用该吸附剂去除工业垃圾渗滤液中的Zn(II)、Cd(II)和Pb(II)离子，并研究其复合可重复利用性和磁分离效率。以杂交玉米发酵渣为原料，在微波辅助下，采用简单的两步法制备了磁性改性生物炭。复合性能、吸附效率和磁响应都取决于萃取剂的选择。碱性萃取剂的重复使用性能最好，对复合材料中铁的释放没有影响，即使在第5次循环中，吸附效率仍高于90%，复合材料仍保持磁性活性。磁性改性生物炭在15 min内从水环境中分离复合材料的效率大于95%，是一种去除废水中金属离子的有效吸附剂。

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

Water Resources and Industry Social Sciences-Geography, Planning and Development

CiteScore

8.10

自引率

5.90%

发文量

审稿时长

75 days

期刊介绍： Water Resources and Industry moves research to innovation by focusing on the role industry plays in the exploitation, management and treatment of water resources. Different industries use radically different water resources in their production processes, while they produce, treat and dispose a wide variety of wastewater qualities. Depending on the geographical location of the facilities, the impact on the local resources will vary, pre-empting the applicability of one single approach. The aims and scope of the journal include: -Industrial water footprint assessment - an evaluation of tools and methodologies -What constitutes good corporate governance and policy and how to evaluate water-related risk -What constitutes good stakeholder collaboration and engagement -New technologies enabling companies to better manage water resources -Integration of water and energy and of water treatment and production processes in industry