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Ji S, Cheng H, Rinklebe J, Liu X, Zhu T, Wang M, Xu H, Wang S. Remediation of neonicotinoid-contaminated soils using peanut shell biochar and composted chicken manure: Transformation mechanisms of geochemical fractions. JOURNAL OF HAZARDOUS MATERIALS 2024; 466:133619. [PMID: 38310841 DOI: 10.1016/j.jhazmat.2024.133619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/08/2024] [Accepted: 01/23/2024] [Indexed: 02/06/2024]
Abstract
Soil remediation techniques are promising approaches to relieve the adverse environmental impacts in soils caused by neonicotinoids application. This study systematically investigated the remediation mechanisms for peanut shell biochar (PSB) and composted chicken manure (CCM) on neonicotinoid-contaminated soils from the perspective of transformation of geochemical fractions by combining a 3-step sequential extraction procedure and non-steady state model. The neonicotinoid geochemical fractions were divided into labile, moderate-adsorbed, stable-adsorbed, bound, and degradable fractions. The PSB and CCM addition stimulated the neonicotinoid transformation in soils from labile fraction to moderate-adsorbed and stable-adsorbed fractions. Compared with unamended soils, the labile fractions decreased from 47.6% ± 11.8% of the initial concentrations to 12.1 ± 9.3% in PSB-amended soils, and 7.1 ± 4.9% in PSB and CCM-amended soils, while the proportions of moderate-adsorbed and stable-adsorbed fractions correspondingly increased by 1.8-2.4 times and 2.3-4.8 times, respectively. A small proportion (<4.8%) in bound fractions suggested there were rather limited bound-residues after 48 days incubation. The PSB stimulated the -NO2-containing neonicotinoid-degraders, which promoted the degradable fractions of corresponding neonicotinoids by 8.2 ± 6.3%. Degradable fraction of neonicotinoids was the dominant fate in soils, which accounted for 58.3 ± 16.7%. The findings made beneficial theoretical supplements and provided valuable empirical evidence for the remediation of neonicotinoid-contaminated soils.
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Affiliation(s)
- Shu Ji
- School of Hydraulic Science and Engineering, School of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Haomiao Cheng
- School of Hydraulic Science and Engineering, School of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China.
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water, and Waste-Management, Laboratory of Soil, and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany
| | - Xiang Liu
- College of Agricultural Science and Engineering, Hohai University, Nanjing 210098, China
| | - Tengyi Zhu
- School of Hydraulic Science and Engineering, School of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Menglei Wang
- School of Hydraulic Science and Engineering, School of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China; Shanghai Construction No.2 (Group) Co., Ltd, Shanghai 200080, China
| | - Hanyang Xu
- School of Hydraulic Science and Engineering, School of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Shengsen Wang
- School of Hydraulic Science and Engineering, School of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210095, China
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