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Hou S, Chen Z, Luo X, Zhang M, Yang P. Hydrogel immobilized bacteria@MOFs composite towards Bisphenol A degradation and the interconnection mechanism elucidation. Environ Res 2024; 251:118718. [PMID: 38490623 DOI: 10.1016/j.envres.2024.118718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/29/2024] [Accepted: 03/12/2024] [Indexed: 03/17/2024]
Abstract
Bisphenol A (BPA) degradation efficiency by bacteria or by metal-organic-frameworks (MOFs) catalyzed persulfate (PMS) oxidation have been studied intensively. However, their synergistic effect on BPA degradation was less reported. In this study, we combined previously synthesized CNT-hemin/Mn-MOF with an BPA degrading bacteria SQ-2 to form a composite (SQ-2@MOFs). CNT-hemin/Mn-MOF in the composite catalyzed little PMS to promote the degradation efficiency of SQ-2 on BPA. Results indicated SQ-2@MOFs significantly accelerated BPA degradation rate than SQ-2 alone. Furthermore, SQ-2@MOFs composite was successfully immobilized in hydrogel to achieve better degradation performance. Immobilized SQ-2@MOFs could almost completely degrade 1-20 mg/L BPA within 24 h and completely degrade 5 mg/L BPA at pH 4-8. Besides, degradation byproducts also reduced by immobilized SQ-2@MOFs, which promoted the cleaner biodegradation of BPA. Metabolomics and multiple chemical characterization results revealed the interconnection mechanism between CNT-hemin/Mn-MOFs, SQ-2 and hydrogel. CNT-hemin/Mn-MOF helped SQ-2 degrade BPA into more biodegradable products, promoted electron transfer, and augmented BPA degradation ability of SQ-2 itself. SQ-2 enabled the surface electronegativity of SQ-2@MOFs more suitable for BPA contact. Meanwhile, SQ-2 avoided the loss of Fe and Mn of CNT-hemin/Mn-MOF. Hydrogel augmented the above synergistic effect. This study provided new perspective for the development of biodegradation materials through interdisciplinary integration.
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Affiliation(s)
- Siyu Hou
- Chengdu Medical College, Chengdu, 610500, China; College of Architecture and Environment, Sichuan University, Chengdu, 610065, China
| | | | | | - Ming Zhang
- China Railway Water Group CO. LTD, Xi'an, 710000, China
| | - Ping Yang
- College of Architecture and Environment, Sichuan University, Chengdu, 610065, China.
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2
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Lee EH, Boglaienko D, McNamara BK, Levitskaia TG. Removable coatings: Thermal stability and decontamination of steel surfaces from 241Am. Chemosphere 2022; 301:134680. [PMID: 35469900 DOI: 10.1016/j.chemosphere.2022.134680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/14/2022] [Accepted: 04/19/2022] [Indexed: 06/14/2023]
Abstract
This study presents a comparative analysis of several commercial removable materials for radioactive decontamination of steel surfaces using 241Am as representative radionuclide. The selection criteria of removable coatings for this study included a history of application, commercial availability, easy handling conditions and different composition and formulation. Carbon steel and stainless steel coupons were utilized as common industrial materials, and the experimental series were expanded to include the rusting treatment of these surfaces as it is common for decommissioned nuclear facilities. Radionuclide 241Am was deposited on the coupon surfaces and used to evaluate decontamination efficiency of the removable coatings, which were pre-screened for the ease of application and removal from the surface. Selected coatings were characterized with Fourier-transform infrared spectroscopy and thermogravimetric analysis, decontamination efficiencies for different types of steel surfaces, and potential enhancement of the removal efficiencies of the select removable coatings via amendment with EDTA. Across all the coatings, decontamination efficiencies for stainless steel (both pristine and with oxidizing treatment) were higher than for pristine carbon steel, which in turn were higher than for rusted carbon steel. Amendment with EDTA improved removal efficiency of a removable coating. CC Strip coating exhibited easy handling and high decontamination efficiency, (up to 97% when EDTA-amended), but its drying time was the longest, and thermal analysis indicated higher release of energy during thermal decomposition compared to the other coatings. Hydrogel-based DeconGel coating, even though not the easiest in handling among the rest of materials, exhibited high decontamination efficiency, efficient drying at the ambient temperature leading to the loss of about 80 wt% due to solvent evaporation, and extremely low heat released during thermal decomposition; therefore, it is considered a preferable choice for the considered factors.
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Affiliation(s)
- Eun Hee Lee
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Daria Boglaienko
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Bruce K McNamara
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Tatiana G Levitskaia
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory, Richland, WA, USA.
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Li P, Yu J, Huangfu Z, Chang J, Zhong C, Ding P. Applying modified biochar with nZVI/nFe 3O 4 to immobilize Pb in contaminated soil. Environ Sci Pollut Res Int 2020; 27:24495-24506. [PMID: 32307680 DOI: 10.1007/s11356-020-08458-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 03/16/2020] [Indexed: 06/11/2023]
Abstract
Lead (Pb) pollution in soil has become one of the most serious environmental problems, and it is more urgent in areas where acid rain is prevalent. Curing agents to solidify heavy metals in soil are efficiently applied to remediate Pb-contaminated soil. In this study, we prepared biochar, biochar loaded with nano-zero-valent iron (BC-nZVI), and biochar loaded with nano-ferroferric oxide (BC-nFe3O4), and investigated the Pb-immobilizing efficiency in contaminated soil in the condition of acid rain by them. The results showed that 8 g/kg is the best added dosage of curing agents for immobilizing Pb, which of the immobilizing efficiency of Pb were 19% (biochar), 42% (BC-nZVI), and 23% (BC-nFe3O4), respectively. Besides, the curing agents had positive effects on immobilizing Pb under acid rain condition, which could significantly reduce the content of acid extractable Pb, especially BC-nZVI (1.5%). And the immobilization efficiency of modified biochar was better than biochar, especially BC-nZVI (66%). BC-nZVI showed a more ideal effect on decreasing the leaching amount of Pb in the condition of acid rain. The results highlighted that biochar-loaded nano-iron-based materials, especially BC-nZVI, was promising and environmentally friendly materials for remediating Pb-contaminated soils, which provided scientific reference and theoretical basis for the treatment of Pb-contaminated soils around industrial sites particularly in acid rain area.
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Affiliation(s)
- Peirou Li
- Department of Environmental Science and Engineering, College of Architecture and Environment, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, 610065, China
- Institute of New Energy and Low Carbon Technology, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, 610065, People's Republic of China
| | - Jiang Yu
- Department of Environmental Science and Engineering, College of Architecture and Environment, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, 610065, China.
- Institute of New Energy and Low Carbon Technology, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, 610065, People's Republic of China.
| | - Zhuoxi Huangfu
- Department of Environmental Science and Engineering, College of Architecture and Environment, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, 610065, China
- Institute of New Energy and Low Carbon Technology, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, 610065, People's Republic of China
| | - Jiahua Chang
- Department of Environmental Science and Engineering, College of Architecture and Environment, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, 610065, China
- Institute of New Energy and Low Carbon Technology, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, 610065, People's Republic of China
| | - Chengwei Zhong
- Department of Environmental Science and Engineering, College of Architecture and Environment, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, 610065, China
- Institute of New Energy and Low Carbon Technology, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, 610065, People's Republic of China
| | - Ping Ding
- Department of Environmental Science and Engineering, College of Architecture and Environment, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, 610065, China
- Institute of New Energy and Low Carbon Technology, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, 610065, People's Republic of China
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Ran H, Guo Z, Shi L, Feng W, Xiao X, Peng C, Xue Q. Effects of mixed amendments on the phytoavailability of Cd in contaminated paddy soil under a rice-rape rotation system. Environ Sci Pollut Res Int 2019; 26:14128-14136. [PMID: 30859443 DOI: 10.1007/s11356-019-04477-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 02/04/2019] [Indexed: 05/22/2023]
Abstract
A field experiment was performed to study the effects of mixed amendments, namely lime + organic fertilizer (LO), lime + organic fertilizer + calcium-magnesium phosphate fertilizer (LOC), lime + organic fertilizer + sepiolite (LOS), and lime + organic fertilizer + calcium-magnesium phosphate fertilizer + sepiolite (LOCS), on the availability and uptake of Cd from contaminated paddy soil under a rice-rape (Oryza sativa L. and Brassica napus L.) rotation system. The results showed that the grain yields of rice and rape with mixed amendment-treated were slightly influenced, in that the soil pH significantly increased while the DTPA-extractable Cd content of the soil and Cd uptake by the rice and rape were significantly reduced. The uptake of Cd by brown rice decreased significantly (p < 0.05), by 55.9-59.3% and 69.6-75.5% in the 2016 and 2017 crops, respectively, compared with that of the control (CK). The Cd uptake by rapeseeds during the 2017 season observably (p < 0.05) decreased by 38.2 and 29.6% under LO and LOC treatments, respectively. The Cd concentrations in rapeseeds were 0.11-0.18 mg kg-1 under all the treatments except LOCS treatment, which is lower than the National Standard of Pollutants in Food of China (GB 2762-2017, 0.2 mg kg-1). From both economic and food safety standpoints, rape is recommended for Cd-contaminated soil because it has a low Cd accumulation ability. The results showed that the rice-rape rotation combined with LO or LOC application was useful for reducing the Cd content in both rice and rape in Cd-contaminated soil and the effects could be sustained at least for three crop seasons.
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Affiliation(s)
- Hongzhen Ran
- Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, 410083, Changsha, People's Republic of China
| | - Zhaohui Guo
- Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, 410083, Changsha, People's Republic of China.
| | - Lei Shi
- Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, 410083, Changsha, People's Republic of China
| | - Wenli Feng
- Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, 410083, Changsha, People's Republic of China
| | - Xiyuan Xiao
- Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, 410083, Changsha, People's Republic of China
| | - Chi Peng
- Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, 410083, Changsha, People's Republic of China
| | - Qinghua Xue
- Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, 410083, Changsha, People's Republic of China
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Liu H, Xu F, Xie Y, Wang C, Zhang A, Li L, Xu H. Effect of modified coconut shell biochar on availability of heavy metals and biochemical characteristics of soil in multiple heavy metals contaminated soil. Sci Total Environ 2018; 645:702-709. [PMID: 30031328 DOI: 10.1016/j.scitotenv.2018.07.115] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 07/08/2018] [Accepted: 07/09/2018] [Indexed: 05/22/2023]
Abstract
On account of the potential in immobilizing metals and improving soil environment, various biochar materials have been extensively applied in environmental remediation. The purpose of this experiment was to evaluate the effect of modified coconut shell biochar (MCSB) on the availability of metals and soil biological activity in multi-metals (cadmium (Cd), nickel (Ni) and zinc (Zn)) contaminated soil. MCSB was obtained from coconut shell biochar (CSB) by hydrochloric acid pickling and ultrasonication, which has significantly improved its surface functional groups and microcosmic pore structure. Sandy soil samples were incubated at 25 °C amended with MCSB or CSB by 0%, 2.5% and 5% addition for 63 days, respectively. The results showed that the acid soluble Cd, Ni and Zn decreased by 30.1%, 57.2% and 12.7%, respectively, in groups with 5% MCSB addition, which indicated MCSB had a better effect on immobilizing metals compared with CSB. In addition, higher soil biological activities were detected in different treatments compared with control (CK). Especially, the maximum bacterial number was found in 5% MCSB treatment, which increased by 149.43% compared with CK. Accordingly, our results suggested that MCSB could be used as an ameliorant to immobilize heavy metals in contaminated soils and improve soil physicochemical and biological properties.
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Affiliation(s)
- Huakang Liu
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China
| | - Fei Xu
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China
| | - Yanluo Xie
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China
| | - Can Wang
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China
| | - Akang Zhang
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China
| | - Lingling Li
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China
| | - Heng Xu
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, Sichuan, PR China.
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Nawab J, Khan S, Aamir M, Shamshad I, Qamar Z, Din I, Huang Q. Organic amendments impact the availability of heavy metal(loid)s in mine-impacted soil and their phytoremediation by Penisitum americanum and Sorghum bicolor. Environ Sci Pollut Res Int 2016; 23:2381-2390. [PMID: 26411451 DOI: 10.1007/s11356-015-5458-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 09/17/2015] [Indexed: 06/05/2023]
Abstract
The amendment of contaminated soil with organic materials is considered to be an environmentally friendly technique to immobilize heavy metal(loid)s and minimize their subsequent bioaccumulation in plants. This study focuses on the effects of different amendment techniques, such as the use of activated carbons (granulated or powder) and farmyard manure at various application rates (2 and 5 %). These techniques were applied on heavy metal(loid)s such as Ni, Cr, Cd, Pb, Mn, Cu, Zn, Fe, Co, and Al that were present in mine-impacted soil and caused bioaccumulation in cultivated plants. The results showed that, compared with the control, almost all the techniques significantly (P ≤ 0.01) reduced the bioavailability of heavy metal(loid)s in the amended soil. The bioaccumulation of heavy metal(loid)s in Penisitum americanum and Sorghum bicolor was significantly (P ≤ 0.01) reduced with all techniques, while Zn and Cd concentrations increased with the use of farmyard manure. Also compared with the control, plant growth was significantly decreased with the use of activated carbons, particularly with powder activated carbons, while farmyard manure (at 5 %) significantly (P ≤ 0.01) increased plant growth. Among the amendment techniques, powdered activated carbons (at 5 %) were best at reducing the bioavailability of heavy metal(loid)s in soil and plant accumulation. However, it negatively affected the growth of selected plant species.
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Affiliation(s)
- Javed Nawab
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
- Department of Environmental Sciences, University of Peshawar, Peshawar, 25120, Pakistan
- Department of Environmental and Conservation Sciences, University of Swat, Swat, 19130, Pakistan
| | - Sardar Khan
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China.
- Department of Environmental Sciences, University of Peshawar, Peshawar, 25120, Pakistan.
| | - Muhammad Aamir
- Department of Environmental Sciences, University of Peshawar, Peshawar, 25120, Pakistan
- Department of Environmental and Conservation Sciences, University of Swat, Swat, 19130, Pakistan
| | - Isha Shamshad
- Department of Environmental Sciences, University of Peshawar, Peshawar, 25120, Pakistan
- Department of Environmental Sciences, International Islamic University, Islamabad, Pakistan
| | - Zahir Qamar
- Department of Environmental Sciences, University of Peshawar, Peshawar, 25120, Pakistan
| | - Islamud Din
- Department of Environmental Sciences, International Islamic University, Islamabad, Pakistan
| | - Qing Huang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China.
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