 Feasibility Evaluation of Using Biochar-based Permeable Reactive Barrier for the Remediation of Mercury and Arsenic Composite Polluted Water BodiesDilixiati·Abulizi Asian Agricultural Research, vol. 16, issue 05 Abstract: This study employed a modified biochar material to construct a permeable reactive barrier (PRB) for the treatment of water bodies polluted with mercury and arsenic. The experimental results demonstrated that the addition of goethite-modified biochar significantly enhanced the remediation efficiency of As (III), achieving a maximum removal rate of 100%. Conversely, pure biochar exhibited high efficiency in the removal of Hg (II), with a maximum removal rate approaching 100%. Furthermore, the pH level of the water significantly influenced the adsorption efficiency of heavy metal ions, with the optimal removal performance observed at a pH value of 6.0. The PRB system demonstrated excellent removal rates under low concentrations of heavy metals. However, as the concentration increased, the remediation efficiency exhibited a slight decrease. In summary, the findings of this study provide compelling evidence for the use of modified biochar in the construction of PRBs for the remediation of mercury- and arsenic-polluted water bodies. Furthermore, the study reveals the mechanism by which pH and heavy metal concentration influence remediation efficiency. Keywords: Agribusiness (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:ags:asagre:349081 Access Statistics for this article More articles in Asian Agricultural Research from USA-China Science and Culture Media Corporation |
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