Effects of phosphorus-rich sawdust biochar sorption on heavy metals. Issue 17 (22nd November 2018)

• Record Type: Journal Article
• Authors: Yang, Luo; Tan, Wen-fa; Mumford, Kathryn; Ding, Lei; Lv, Jun-wen; Zhang, Xiao-wen; Wang, Hong-qiang
• Is Part Of: Separation science and technology. Volume 53:Issue 17(2018)
• Page Start: 2704
• Page End: 2716
• Publication Date: 2018-11-22
• Subjects: Phosphorus-rich biochar -- adsorption -- removal efficiency -- heavy metals; Separation (Technology) -- Periodicals; 660.284205
• DOI: 10.1080/01496395.2018.1470641
• Languages: English
• ISSNs: 0149-6395

Abstract

ABSTRACT: The aim of this paper is to study the efficiency of typical heavy metals in electroplating sludge in terms of different phosphorus dosages (0.5 wt.%, 1 wt.% and 3 wt.%), initial pH (2, 3, 4, 5 and 6) and adsorption times (1, 3, 5, 7 and 12 h) of biochar. The heavy metal speciation was determined after adsorption to estimate the stability of ion-adsorption precipitation. Results show that phosphorus-modified biochar enhances the removal efficiency of heavy metals. Low mobility of heavy metal speciation was investigated. It is also shown that initial pH has a significant impact on the heavy metal speciation after adsorption.