To explore the remediation mechanism and effect of biochar and KH2PO4 on soils contaminated with heavy metal ions Hg2+, Cd2+ and Pb2+

被引：2

作者：

Wu, Dun ^{[1
,2
,3
,4
]}

Lu, Jianwei ^{[1
]}

Wu, Jian ^{[1
]}

Li, Bo ^{[1
]}

机构：

[1] Anhui Jianzhu Univ, Anhui Prov Intelligent Underground Explorat & Env, Sch Civil Engn, Hefei, Anhui, Peoples R China

[2] State Key Lab Safety & Hlth Met Mines, Maanshan, Anhui, Peoples R China

[3] Anhui Jianzhu Univ, Anhui Prov Intelligent Underground Explorat & Env, Sch Civil Engn, Hefei 23060, Anhui, Peoples R China

[4] State Key Lab Safety & Hlth Met Mines, Maanshan 243000, Anhui, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING | 2023年 / 58卷 / 13期

关键词：

Soil; heavy metals; biochar; KH2PO4; remediation; SORPTION;

D O I：

10.1080/10934529.2023.2290421

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this study, wheat straw-derived biochar was prepared by setting a temperature of 400 degrees C under an oxygen-limited environment using the technique of "programmed temperature increase control". The results showed that the biochar had a strong adsorption capacity for Hg2+, Cd2+ and Pb2+ ions, and the adsorption pattern was Hg2+>Cd2+>Pb2+. There was a competitive adsorption effect during the coexistence of the ions. The results of the soil remediation tests showed that the effects of biochar on soil physicochemical properties and heavy metal distribution was generally greater than those of KH2PO4 in single or combined contaminated soil. The adsorption effect of heavy metal ions in soil was the best in the case of mixed additions. The results can provide a scientific basis for the treatment of heavy metal contaminated soil with wheat straw biochar in the future.

引用

页码：1001 / 1013

页数：13

共 50 条

[21] Adsorption of heavy metal tolerance strains to Pb2+ and Cd2+ in wastewater
Dajun Li
Li Zhou
Environmental Science and Pollution Research, 2018, 25 : 32156 - 32162
[22] Simultaneous removal of Hg2+, Pb2+ and Cd2+ from aqueous solutions on multifunctional MoS2
Liu, Chang
Zeng, Shilin
Yang, Bingqiao
Jia, Feifei
Song, Shaoxian
JOURNAL OF MOLECULAR LIQUIDS, 2019, 296
[23] Retraction Note: The ability of twisted nanographene for removal of Pb2+, Hg2+ and Cd2+ ions from wastewater: Computational study
Jie Feng
Jianfu Wu
Journal of Molecular Modeling, 2025, 31 (1)
[24] Effect of oxidative aging of biochar on relative distribution of competitive adsorption mechanism of Cd2+ and Pb2+
Wang, Zhe
Geng, Chengxin
Bian, Yuan
Zhang, Guangyu
Zheng, Chunli
An, Chunjiang
SCIENTIFIC REPORTS, 2022, 12 (01)
[25] Effect of oxidative aging of biochar on relative distribution of competitive adsorption mechanism of Cd2+ and Pb2+
Zhe Wang
Chengxin Geng
Yuan Bian
Guangyu Zhang
Chunli Zheng
Chunjiang An
Scientific Reports, 12
[26] Water Soluble Cationic Porphyrin Sensor for Detection of Hg2+, Pb2+, Cd2+, and Cu2+
Zamadar, Matibur
Orr, Christopher
Uherek, Miranda
JOURNAL OF SENSORS, 2016, 2016
[27] A sinapic acid-calix[4]arene hybrid selectively binds Pb2+ over Hg2+ and Cd2+
Sgarlata, Carmelo
Zito, Valeria
Arena, Giuseppe
Consoli, Grazia Maria Letizia
Galante, Eva
Geraci, Corrada
POLYHEDRON, 2009, 28 (02) : 343 - 348
[28] Study on Removal of Heavy Metal Ions (Pb2+, Cd2+ and Cu2+) by Coriandrum sativum (Coriander)
Bahloul, A.
Zouaoui, H.
Diafat, A.
Meribai, A.
Noufel, Y.
Derrardja, M.
Nessark, B.
JOURNAL OF WATER CHEMISTRY AND TECHNOLOGY, 2020, 42 (03) : 157 - 163
[29] Study on Removal of Heavy Metal Ions (Pb2+, Cd2+ and Cu2+) by Coriandrum sativum (Coriander)
A. Bahloul
H. Zouaoui
A. Diafat
A. Meribai
Y. Noufel
M. Derrardja
B. Nessark
Journal of Water Chemistry and Technology, 2020, 42 : 157 - 163
[30] Eco-toxicology effect on Moina mongolica Daday exposed to Cd2+, Pb2+, and Hg2+ by the food chain
Meiru Wang
Wen Zhao
Xuying Jia
Jie Wei
Shan Wang
Environmental Science and Pollution Research, 2018, 25 : 16024 - 16036

← 1 2 3 4 5 →