干旱区生态环境知识资源中心(Arid): The Effect of Remediation of Soil Co-Contaminated by Cu and Cd in a Semi-Arid Area with Sewage Sludge-Derived Biochar

Arid

DOI	10.3390/su16124961
	The Effect of Remediation of Soil Co-Contaminated by Cu and Cd in a Semi-Arid Area with Sewage Sludge-Derived Biochar
	Wang, Zhipu; Wei, Nan; Yang, Fei; Hanikai, Daoren; Li, Shifeng; Zhai, Yawei; Zhou, Jiabin; Liu, Dan; Yuan, Xiaoxian; Bie, Shiji; Tian, Yixuan
通讯作者	Wang, ZP ; Zhai, YW
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2024
卷号	16 期号:12
英文摘要	In this study, biochar derived from sewage sludge was applied to remediate Cu and Cd co-polluted soil in semi-arid areas for the first time, in which the effects of biochar on the improvement of soil physicochemical and biological properties as well as the immobilization of Cu and Cd were investigated. Soil water holding capacity increased by 0.22-2.74%, soil CEC increased by 0.52-4.06 units, soil SOM content increased by 1.41-5.97 times, and urease and catalase activities increased by 0.012-0.032 mgg-124 h-1, 0.18-2.95 mg H2O2g-1, but soil pH increased only slightly by 0.69 units after biochar application. In addition, although the total content of these two metals in the soil increased with the use of biochar, the content of DTPA-Cu and Cd decreased by -0.128-0.291 mg/kg, 0-0.037 mg/kg, with the increase in biochar application, and the content of acid-soluble Cu in the soil decreased from 27.42 mg/kg to 3.76 mg/kg, the mobility and bioavailability of these two metals in the soil decreased. Finally, the complexation of organic functional groups with the soil dominates the immobilization process of metals, especially Cu. These findings suggest that biochar from sewage sludge can effectively improve soil quality and remediate heavy metal-contaminated soils in semi-arid regions. Meanwhile, the use of sludge-based biochar for the remediation of contaminated soils also provides a new method for the safe disposal of sewage sludge and a new way for sustainable development. In subsequent studies, methods such as modification are recommended to improve the efficiency of sludge-based biochar for the removal of Cu and Cd.
英文关键词	biochar sewage sludge heavy metals soil remediation co-contaminate
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:001256557000001
WOS关键词	SEQUENTIAL EXTRACTION ; INORGANIC FERTILIZERS ; WATER ; BIOAVAILABILITY ; IMMOBILIZATION ; METALS ; IMPROVEMENT ; MECHANISMS ; EFFICIENCY ; PYROLYSIS
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405742
推荐引用方式 GB/T 7714	Wang, Zhipu,Wei, Nan,Yang, Fei,et al. The Effect of Remediation of Soil Co-Contaminated by Cu and Cd in a Semi-Arid Area with Sewage Sludge-Derived Biochar[J],2024,16(12).
APA	Wang, Zhipu.,Wei, Nan.,Yang, Fei.,Hanikai, Daoren.,Li, Shifeng.,...&Tian, Yixuan.(2024).The Effect of Remediation of Soil Co-Contaminated by Cu and Cd in a Semi-Arid Area with Sewage Sludge-Derived Biochar.SUSTAINABILITY,16(12).
MLA	Wang, Zhipu,et al."The Effect of Remediation of Soil Co-Contaminated by Cu and Cd in a Semi-Arid Area with Sewage Sludge-Derived Biochar".SUSTAINABILITY 16.12(2024).