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In situ synthesis of micro-plastics embedded sewage-sludge co-pyrolyzed biochar: Implications for the remediation of Cr and Pb availability and enzymatic activities from the contaminated soil
Munir, Mehr Ahmed Mujtaba1,2; Yousaf, Balal3; Ali, Muhammad Ubaid4,5; Dan, Chen1,2; Abbas, Qumber3; Arif, Muhammad6,7; Yang, Xiaoe1,2
Corresponding AuthorYang, Xiaoe(xeyang@zju.edu.cn)
2021-06-15
Source PublicationJOURNAL OF CLEANER PRODUCTION
ISSN0959-6526
Volume302Pages:15
AbstractCareful designing of biochar (BC) employing biological and industrial waste materials has gained much attention to improve soil health via reducing the bioavailability of heavy metals (HMs) in the contaminated-soil. Herein, a forty-day pot experiment was conducted to explore the influence of micro plastic (MP) embedded sewage-sludge (SS). The effects of SS and MP dosage ratios (0e15%) on the physicochemical properties of the modified-biochars were also studied with slow-pyrolyzed (SBC-500 degrees C) and flash-pyrolyzed biochar (FSBC-70 0 degrees C). Our investigations found remarkable positive synergistic effects for the SBC-15% involving increased soil pH, CEC, high carbon contents, and alleviation in Cr and Pb leaching than control and FSBC-70 0 degrees C. Besides, SBC-15% containing high carbon functional groups can effectively mitigate the Cr and Pb availability stress by intensifying the adsorption or passivation in the amended-soil, thereby, significantly reducing the Cr and Pb EDTA-extractable contents. Chemical fractionation analyses further confirmed that SBC-15% addition was more helpful for Cr and Pb immobilization and ultimately reducing transfer-rate, bioconcentration-factor, and translocation-factor as compared to FSBC-15% and control due to its higher alkalinity, surface area/porosity, and available carbon functional groups. The maize biomass (root and shoot) increased by more than 50%, and the activities of soil enzymes such as urease, alkaline phosphatase, and glucosidase enzyme activities were also enhanced. This ecologically feasible strategy would pave an efficient way to make full use of the SS and MP for the biochar synthesis with excellent soil remediation performance. (C) 2021 Elsevier Ltd. All rights reserved.
KeywordModified-biochar Microplastic Heavy metals Spectroscopic investigation
DOI10.1016/j.jclepro.2021.127005
WOS KeywordAL-MODIFIED BIOCHAR ; HEAVY-METALS ; SIMULTANEOUS REMOVAL ; STRAW BIOCHAR ; IMMOBILIZATION ; WASTE ; PHOSPHATE ; SORPTION ; LEAD ; MECHANISMS
Indexed BySCI ; SCI
Language英语
Funding ProjectTobacco Science and Technology Bureau of Yunnan Province[2020530000241006] ; Zhejiang Science and Technology Bureau[2018C02029] ; National Natural Science Foundation of China[31872956] ; Fundamental Research Funds for the Central Universities
WOS Research AreaScience & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
Funding OrganizationTobacco Science and Technology Bureau of Yunnan Province ; Zhejiang Science and Technology Bureau ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
WOS SubjectGreen & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000647766700017
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/16413
Collection中国科学院地球环境研究所
黄土与第四纪地质国家重点实验室(2010~)
Corresponding AuthorYang, Xiaoe
Affiliation1.Zhejiang Univ, Inst Crop Sci, Coll Environm & Resources Sci, Minist Educ MOE,Key Lab Environm Remediat & Ecosy, Hangzhou 310058, Peoples R China
2.Zhejiang Univ, Zhejiang Key Lab Crop Germplasm, Hangzhou 310058, Peoples R China
3.Middle East Tech Univ, Environm Engn Dept, TR-06800 Ankara, Turkey
4.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Guangdong Prov Key Lab Soil & Groundwater Pollut, Shenzhen 518000, Peoples R China
5.Southern Univ Sci & Technol, Sch Environm Sci & Engn, State Environm Protect Key Lab Integrated Surface, Shenzhen 518000, Peoples R China
6.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China
7.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Munir, Mehr Ahmed Mujtaba,Yousaf, Balal,Ali, Muhammad Ubaid,et al. In situ synthesis of micro-plastics embedded sewage-sludge co-pyrolyzed biochar: Implications for the remediation of Cr and Pb availability and enzymatic activities from the contaminated soil[J]. JOURNAL OF CLEANER PRODUCTION,2021,302:15.
APA Munir, Mehr Ahmed Mujtaba.,Yousaf, Balal.,Ali, Muhammad Ubaid.,Dan, Chen.,Abbas, Qumber.,...&Yang, Xiaoe.(2021).In situ synthesis of micro-plastics embedded sewage-sludge co-pyrolyzed biochar: Implications for the remediation of Cr and Pb availability and enzymatic activities from the contaminated soil.JOURNAL OF CLEANER PRODUCTION,302,15.
MLA Munir, Mehr Ahmed Mujtaba,et al."In situ synthesis of micro-plastics embedded sewage-sludge co-pyrolyzed biochar: Implications for the remediation of Cr and Pb availability and enzymatic activities from the contaminated soil".JOURNAL OF CLEANER PRODUCTION 302(2021):15.
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