Effects of phosphorus-rich sawdust biochar sorption on heavy metals

被引：14

作者：

Yang, Luo ^{[1
]}

Tan, Wen-fa ^{[1
,2
]}

Mumford, Kathryn ^{[3
]}

Ding, Lei ^{[1
]}

Lv, Jun-wen ^{[1
]}

Zhang, Xiao-wen ^{[1
]}

Wang, Hong-qiang ^{[1
]}

机构：

[1] Univ South China, Environm Protect & Safety Engn, Hengyang, Peoples R China

[2] Hunan Univ, Key Lab Pollut Control & Resource Technol Hunan P, Hengyang, Peoples R China

[3] Univ Melbourne, Dept Chem & Biomol Engn, Melbourne, Vic, Australia

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2018年 / 53卷 / 17期

基金：

中国国家自然科学基金;

关键词：

Phosphorus-rich biochar; adsorption; removal efficiency; heavy metals; SEWAGE-SLUDGE BIOCHAR; ELECTROPLATING SLUDGE; HEXAVALENT CHROMIUM; PYROLYSIS TEMPERATURE; CONTAMINATED SOIL; WASTE-WATER; ADSORPTION; REMOVAL; EXTRACTION; IMMOBILIZATION;

D O I：

10.1080/01496395.2018.1470641

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：2704 / 2716

页数：13

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