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Tian B, Li J, Zhao J, Shang H, Gao W, Liu X, Wen J. Humic acid-mediated mechanism for efficient biodissolution of used lithium batteries. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135400. [PMID: 39096634 DOI: 10.1016/j.jhazmat.2024.135400] [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: 12/25/2023] [Revised: 07/21/2024] [Accepted: 07/31/2024] [Indexed: 08/05/2024]
Abstract
Resource recovery of valuable metals from spent lithium batteries is an inevitable trend for sustainable development. In this study, external regulation was used to enhance the tolerance and stability of strains in the leaching of spent lithium batteries to radically improve the bioleaching efficiency. The leaching of Li, Ni, Co and Mn increased to 100 %, 85.06 %, 74.25 % and 69.44 % respectively after targeted cultivation with HA as compared to the undomesticated strain. In the process of microbial leaching of spent lithium batteries, the metabolites in the Ⅰ, Ⅳ, and Ⅴ regions of the metabolism of the undomesticated bacterial colony had a positive correlation to the dissolution of spent lithium batteries. The metabolites of Ⅰ, Ⅱ, and Ⅴ regions were directly affected by the HA domesticated flora on the dissolution of spent lithium batteries. The excess metabolism of protein substances can significantly promote the reduction of Ni, Co, Mn leaching, and at the same time in the role of a large number of humic substances complexed the toxic metal ions in the system, to ensure the activity of the bacterial colony. It can be seen that the bacteria were domesticated by humic acid, which promoted the bacteria's own metabolism, and the super-metabolised EPS promoted the solubilisation of spent lithium batteries.
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Affiliation(s)
- Bingyang Tian
- National Engineering Laboratory of Biohydrometallurgy, GRINM Group Corporation Limited, Beijing 101407, China; GRINM Resources and Environment Tech. Co., Ltd., Beijing 101407, China
| | - Jingze Li
- National Engineering Laboratory of Biohydrometallurgy, GRINM Group Corporation Limited, Beijing 101407, China; GRINM Resources and Environment Tech. Co., Ltd., Beijing 101407, China
| | - Juan Zhao
- National Engineering Laboratory of Biohydrometallurgy, GRINM Group Corporation Limited, Beijing 101407, China; GRINM Resources and Environment Tech. Co., Ltd., Beijing 101407, China
| | - He Shang
- National Engineering Laboratory of Biohydrometallurgy, GRINM Group Corporation Limited, Beijing 101407, China; GRINM Resources and Environment Tech. Co., Ltd., Beijing 101407, China
| | - Wencheng Gao
- National Engineering Laboratory of Biohydrometallurgy, GRINM Group Corporation Limited, Beijing 101407, China; GRINM Resources and Environment Tech. Co., Ltd., Beijing 101407, China
| | - Xue Liu
- National Engineering Laboratory of Biohydrometallurgy, GRINM Group Corporation Limited, Beijing 101407, China; GRINM Resources and Environment Tech. Co., Ltd., Beijing 101407, China
| | - Jiankang Wen
- National Engineering Laboratory of Biohydrometallurgy, GRINM Group Corporation Limited, Beijing 101407, China; GRINM Resources and Environment Tech. Co., Ltd., Beijing 101407, China.
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Yu J, Zhou Y. Research on Resource Recovery and Disposal of Copper-Containing Sludge. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2636. [PMID: 38893901 PMCID: PMC11173635 DOI: 10.3390/ma17112636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 05/18/2024] [Accepted: 05/27/2024] [Indexed: 06/21/2024]
Abstract
Copper-containing sludge is a common by-product of industrial activities, particularly electroplating and metal processing. This type of sludge contains high concentrations of heavy metals such as copper, which can pose a potential threat to the environment. Therefore, its treatment and disposal require special attention. Due to its efficient mass and heat transfer characteristics, the suspended state technology has shown significant potential for application in a number of key processes, including the drying, decomposition, and reduction of copper-containing sludge. This paper presents an in-depth analysis of the current status of the application of the suspended state technology in the treatment of copper-containing sludge. Based on this analysis, a device for the treatment of copper-containing sludge in the suspended state was designed, through which the characteristics of copper-containing sludge in the oxidative decomposition and reduction phases are investigated. The research objects were gas concentration, temperature, contact state, and particle size time. Orthogonal experiments were initially employed to investigate the relationship between the influencing factors and the conversion rate of copper oxides. This was followed by a single-factor influence study, which led to the determination of the optimal process parameters for the decomposition experiments of the Cu-containing sludge in an oxidizing atmosphere. The 100 μm Cu-containing sludge was reacted with 10% O2 gas at a flow rate of 1 m/s for 3 min under the condition of 900 °C. The process parameters were then determined as follows: The research objects were gas concentration, temperature, contact state, and particle size time. Orthogonal experiments were employed to investigate the relationship between the influencing factors and the copper conversion rate. This was followed by a single-factor influence study, which determined the optimal process parameters for the copper-containing sludge reduction experiments. The 200 μm copper-containing sludge was reacted for 5 min at a flow rate of 7% carbon monoxide at a flow rate of 1.5 m/s under the condition of 800 °C.
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Affiliation(s)
| | - Yongmin Zhou
- College of Materials Science and Engineering, Nanjing Tech University, South Puzhu Road No. 30, Nanjing 211816, China;
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3
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Limmun W, Chungcharoen T, Rattanamechaiskul C, Phetpan K, Limmun W. Enhancing biodiesel yield and purification with a recently developed centrifuge machine: A response surface methodology approach. Heliyon 2024; 10:e29018. [PMID: 38601691 PMCID: PMC11004817 DOI: 10.1016/j.heliyon.2024.e29018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 02/05/2024] [Accepted: 03/28/2024] [Indexed: 04/12/2024] Open
Abstract
Biodiesel production processes, such as gravity settling, have limitations in terms of biodiesel yield, purification efficiency, operating time in the separation process, and more extensive equipment. Therefore, this study has focused on using a recently developed centrifuge machine for biodiesel separation to address these challenges due to its compact design, high efficiency, and simplicity. Additionally, this study aimed to optimize the separation efficiency of glycerol from biodiesel using a centrifuge machine, employing response surface methodology (RSM) with central composite design (CCD). The optimum conditions for separating glycerol from biodiesel via centrifuge machine are a rotation speed of 1800 rpm, a mixture flow rate of 192.25 ml/min, and a temperature of 55 °C, respectively. In optimum conditions, 94.52% separation efficiency was achieved. Biodiesel production can be improved, leading to higher yields and greater purity. The utilization of RSM proved valuable in determining the optimum conditions for separation. Furthermore, the machine successfully separated the biodiesel to meet ASTM D6751 and EN 14,214 standards. The results highlight the potential of the centrifuge machine for efficient and reliable biodiesel production, contributing to the advancement of the biodiesel industry.
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Affiliation(s)
- Warunee Limmun
- Department of Engineering, King Mongkut's Institute of Technology Ladkrabang, Prince of Chumphon Campus, 17/1, Chumko Pathio, Chumphon, 86160, Thailand
| | - Thatchapol Chungcharoen
- Department of Engineering, King Mongkut's Institute of Technology Ladkrabang, Prince of Chumphon Campus, 17/1, Chumko Pathio, Chumphon, 86160, Thailand
| | - Chaiwat Rattanamechaiskul
- Department of Engineering, King Mongkut's Institute of Technology Ladkrabang, Prince of Chumphon Campus, 17/1, Chumko Pathio, Chumphon, 86160, Thailand
| | - Kittisak Phetpan
- Department of Engineering, King Mongkut's Institute of Technology Ladkrabang, Prince of Chumphon Campus, 17/1, Chumko Pathio, Chumphon, 86160, Thailand
| | - Wanida Limmun
- Center of Excellence in Data Science for Health Study, Department of Mathematics and Statistics, Walailak University, Thasala, Nakhon Si Thammarat, 80160, Thailand
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Guo S, Wang H, Liu X, Zhang Z, Liu Y. Approaches for the Treatment and Resource Utilization of Electroplating Sludge. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1707. [PMID: 38612220 PMCID: PMC11013125 DOI: 10.3390/ma17071707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/03/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024]
Abstract
The disposal of electroplating sludge (ES) is a major challenge for the sustainable development of the electroplating industry. ESs have a significant environmental impact, occupying valuable land resources and incurring high treatment costs, which increases operational expenses for companies. Additionally, the high concentration of hazardous substances in ES poses a serious threat to both the environment and human health. Despite extensive scholarly research on the harmless treatment and resource utilization of ES, current technology and processes are still unable to fully harness its potential. This results in inefficient resource utilization and potential environmental hazards. This article analyzes the physicochemical properties of ES, discusses its ecological hazards, summarizes research progress in its treatment, and elaborates on methods such as solidification/stabilization, heat treatment, wet metallurgy, pyrometallurgy, biotechnology, and material utilization. It provides a comparative summary of different treatment processes while also discussing the challenges and future development directions for technologies aimed at effectively utilizing ES resources. The objective of this text is to provide useful information on how to address the issue of ES treatment and promote sustainable development in the electroplating industry.
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Affiliation(s)
- Song Guo
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China; (S.G.); (H.W.)
| | - Huimin Wang
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China; (S.G.); (H.W.)
| | - Xiaoming Liu
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China; (S.G.); (H.W.)
- State Key Laboratory of Advanced Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Zengqi Zhang
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China; (S.G.); (H.W.)
| | - Yu Liu
- China International Engineering Consulting Corporation, Beijing 100048, China;
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Hou J, Hong C, Ling W, Hu J, Feng W, Xing Y, Wang Y, Zhao C, Feng L. Research progress in improving sludge dewaterability: sludge characteristics, chemical conditioning and influencing factors. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119863. [PMID: 38141343 DOI: 10.1016/j.jenvman.2023.119863] [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: 09/11/2023] [Revised: 11/29/2023] [Accepted: 12/12/2023] [Indexed: 12/25/2023]
Abstract
Sludge from wastewater treatment processes with high water content and large volume has become an inevitable issue in environmental management. Due to the challenging dewatering properties of sludge, current mechanical dewatering methods are no longer sufficient to meet the escalating water content standards of sludge. This paper summarizes the characteristics of various sludge and raises reasons for the their dewaterability differences. Affected by extracellular polymeric substances, biological sludge is hydrophilic and negatively charged, which limits the dewatering degree. The rheological properties, flocs, ionic composition, and solid phase concentration of the sludge also influence the dewatering to some extent. For these factors, the chemical conditioning measures with simple operation and excellent effect improve its dewaterability, which mainly include flocculation/coagulation, acid/alkali treatment, advanced oxidation, surfactant treatment and combined treatment. There is a growing necessity to explore the development of new chemical conditioning agents, even though traditional agents continue to remain widely used. However, the development of these new agents should prioritize finding a balance between various factors such as efficiency, effectiveness, ease of operation, environmental safety, and cost-effectiveness. Electrochemical dewatering enhances solid-liquid separation, and its coupling with chemical conditioning is also an excellent means to further reduce water content. In addition, the improvement of press filter is an effective way, which is influenced by pressure, processing time, sludge cake thickness and pore structure, filter media etc. In general, it is essential to develop new conditioning agents and enhance mechanical filtration press technology based on a thorough understanding of various sludge properties. Concurrently, an in-depth study of the principles of mechanical pressure filtration will contribute to establishing a theoretical foundation for effective deep sludge dewatering and propel further advancements in this field.
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Affiliation(s)
- Jiachen Hou
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Chen Hong
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, 100083, China.
| | - Wei Ling
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Jiashuo Hu
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Weibo Feng
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yi Xing
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yijie Wang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Chengwang Zhao
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Lihui Feng
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
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6
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Wang H, Liu X, Zhang Z. Approaches for electroplating sludge treatment and disposal technology: Reduction, pretreatment and reuse. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 349:119535. [PMID: 37979382 DOI: 10.1016/j.jenvman.2023.119535] [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: 05/05/2023] [Revised: 10/29/2023] [Accepted: 11/04/2023] [Indexed: 11/20/2023]
Abstract
Electroplating sludge (ES) has become an obstacle to the sustainable development of the electroplating industry. Electroplating sludge has a large storage capacity, with a high concentration of soluble pollutants (heavy metals), which has great potential to harm the local ecosystems and human health. Although much research has been done in this area, there seems to be no mature and stable solution. Therefore, the latest technologies for the reduction, pretreatment and reuse of electroplating sludge are emphatically introduced based on the analysis of the characteristics of electroplating sludge and its impact on the ecological environment. The factors hindering the treatment and disposal of electroplating sludge are pointed out, and reasonable and feasible suggestions to solve this problem are proposed. The solidification and removal mechanism of heavy metals in electroplating sludge is emphatically analyzed. The physicochemical and separation processes of heavy metals, as well as thermal treatment technique are discussed. Finally, it is proposed to establish a database of the physicochemical properties and elemental content of electroplating sludge to achieve its systematic treatment and digestion. We hope that this paper can help solve the problem of electroplating sludge and promote the sustainable development of the electroplating industry.
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Affiliation(s)
- Huimin Wang
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Xiaoming Liu
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, 100083, China; School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
| | - Zengqi Zhang
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, 100083, China; School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
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7
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Kara IT, Simmons N, Wagland ST, Coulon F. Unlocking the hidden value of industrial by-products: Optimisation of bioleaching to extract metals from basic oxygen steelmaking dust and goethite. CHEMOSPHERE 2023; 343:140244. [PMID: 37758076 DOI: 10.1016/j.chemosphere.2023.140244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 10/02/2023]
Abstract
In this study, the potential of bioleaching to extract valuable metals from industrial by-products, specifically basic oxygen steelmaking dust (BOS-D) and goethite was investigated. These materials are typically discarded due to their high zinc content and lack of efficient regeneration processes. By using Acidithiobacillus ferrooxidans, successful bioleaching of various metals, including heavy metals, critical metals, and rare earth elements was achieved. The Taguchi orthogonal array design was used to optimise the bioleaching process, considering four variables at three different levels. After 14 days, the highest metal extraction for the BOS-D (11.2 mg Zn/g, 3.2 mg Mn/g, 1.6 mg Al/g, 0.0013 mg Y/g, and 0.0026 mg Ce/g) was achieved at 1% solid concentration, 1% energy source concentration, 1% inoculum concentration, and pH 1.5. For goethite, the optimal conditions were 1% solid concentration, 4% energy source concentration, 10% inoculum concentration, and pH 2 resulting in a extraction of 26.6 mg Zn/g, 2.1 mg/g Mn, 1.8 mg Al/g, 0.01 mg Co/g, 0.0022 mg Y/g. These findings are significant, as they demonstrate the potential to extract valuable metals from previously discarded industrial by-products. The extraction of such metals can have substantial economic and environmental implications, while simultaneously reducing waste in the metallurgical industry. Furthermore, the preservation of initial concentration of iron in both BOS-D and goethite residues represents a significant step towards implementing more sustainable industrial practices.
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Affiliation(s)
- Ipek Tezyapar Kara
- Cranfield University, School of Water, Energy and Environment, Cranfield, MK43 0AL, UK
| | - Nuannat Simmons
- Cranfield University, School of Water, Energy and Environment, Cranfield, MK43 0AL, UK
| | - Stuart T Wagland
- Cranfield University, School of Water, Energy and Environment, Cranfield, MK43 0AL, UK
| | - Frederic Coulon
- Cranfield University, School of Water, Energy and Environment, Cranfield, MK43 0AL, UK.
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Shi G, Wen L, Zhang S, Cheng J, Chen X, Zhou Y, Xu Z, Xin B. Facile manufacture of high-purity CuSO 4 from waste Cu-containing paint residue using combined processes of H 2SO 4 leaching and extraction stripping. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 88:2974-2985. [PMID: 38096082 PMCID: wst_2023_388 DOI: 10.2166/wst.2023.388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Waste copper-containing paint residue (WCPR) represents a typical hazardous waste containing both toxic organic substances and toxic heavy metals, but there are few reports on the recycling of heavy metals. The recovery of Cu from WCPR by H2SO4 leaching-extraction-stripping has the advantages of eco-friendliness, simplicity of operation, and high value-added product. The results show that under the optimal conditions, the leaching rate of Cu in WCPR is 94.31% (18.02 g/L), while the extraction and stripping rates of Cu in the leaching solution are 99.46 and 95.32%, respectively. Due to the high concentration of Cu2+ with fewer impurities in the stripping solution, the stripping solution is heated, evaporated, cooled, and crystallized to successfully produce high-purity dark blue CuSO4 crystal, accomplishing the high-value recycling of Cu in WCPR. In addition, the leach residue of WCPR contains acrylic resin and SiO2, which can be used in cement kilns for incineration, thus realizing the overall recycling and utilization of WCPR.
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Affiliation(s)
- Gongchu Shi
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China E-mail:
| | - Lingkai Wen
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Shihao Zhang
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jian Cheng
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Xiaohui Chen
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yanyu Zhou
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Zhikai Xu
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Baoping Xin
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China; Tangshan Research Institute, Beijing Institute of Technology, Tangshan 063000, China
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9
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Naseri T, Beiki V, Mousavi SM, Farnaud S. A comprehensive review of bioleaching optimization by statistical approaches: recycling mechanisms, factors affecting, challenges, and sustainability. RSC Adv 2023; 13:23570-23589. [PMID: 37555097 PMCID: PMC10404936 DOI: 10.1039/d3ra03498d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 07/27/2023] [Indexed: 08/10/2023] Open
Abstract
A serious environmental problem is associated with the accumulation of solid waste on the Earth. Researchers are encouraged to find an efficient and sustainable method to recover highly profitable heavy metals and precious and base metals. Bioleaching is a green method of recovering valuable metals from solid waste. Optimizing the variables and conditions of the bioleaching process is crucial to achieving maximum metal recovery most cost-effectively. The conventional optimization method (one factor at a time) is well-studied. However, it has some drawbacks, such as the necessity of more experiments, the need to spend more time, and the inability to illuminate the synergistic effect of the variables. Optimization studies are increasingly utilizing response surface methodology (RSM) because it provides details about the interaction effects of variables with fewer experiments. This review discusses the application of RSM for bioleaching experiments from other solid wastes. It discusses the Central Composite and Box-Behnken designs as the most commonly used designs for optimizing bioleaching methods. The most influential factors for increasing the heavy metal recovery rate in applying RSM using the bioleaching process are recognized, and some suggestions are made for future research.
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Affiliation(s)
- Tannaz Naseri
- Biotechnology Group, Chemical Engineering Department, Tarbiat Modares University Tehran Iran +98-21-82884931 +98-21-82884917
| | - Vahid Beiki
- Biotechnology Group, Chemical Engineering Department, Tarbiat Modares University Tehran Iran +98-21-82884931 +98-21-82884917
| | - Seyyed Mohammad Mousavi
- Biotechnology Group, Chemical Engineering Department, Tarbiat Modares University Tehran Iran +98-21-82884931 +98-21-82884917
- Modares Environmental Research Institute, Tarbiat Modares University Tehran Iran
| | - Sebastien Farnaud
- CSELS, Faculty of Health & Life Sciences, Coventry University Coventry UK
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Tian Q, Jiang Y, Li Z, Zhao B, Qiu F, Zhang T. Structured electroplating sludge derived membrane for one-step removal of oil, metal ions, and anions from oil/water emulsions. JOURNAL OF HAZARDOUS MATERIALS 2023; 452:131284. [PMID: 36989779 DOI: 10.1016/j.jhazmat.2023.131284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/14/2023] [Accepted: 03/22/2023] [Indexed: 06/19/2023]
Abstract
The effective simultaneous treatment of hazardous waste sludge and complex oil/water emulsions in one way is urgently desired but still a challenging issue. Herein, this work for the first time presents a green and efficient strategy to fabricate an electroplating sludge (ES) derived multifunctional self-supporting membrane for the one-step removal of emulsified oils, soluble metal ions, and anions in complex oily wastewater. Due to low cost of ES and sustainability of the solvent selected in fabrication process, the large-scale application of the membrane is easily to promote. The assembled hierarchical nanostructure endowed robust underwater superoleophobicity of the membrane even under various corrosive aqueous environments, as well as excellent ultra-low oil adhesion and anti-oil-fouling performance, without chemical modification. Significantly, the multifunctional membrane possessed desirable simultaneous separation efficiency for five typical oil-in-water emulsions (>99.4%, high oil/water selective wettability), including crude oil-in-water emulsion with high viscosity (>99.6%), Cu2+ (>96.1%, surface complexation and ionic exchange), and Cl- (>92.7%, electrostatic attraction). Therefore, this green, low-cost, and multifunctional membrane not only allows the large-scale resource utilization of hazardous waste sludge, but also effectively solves the problems of complex oily wastewater purification.
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Affiliation(s)
- Qiong Tian
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yuhui Jiang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zhangdi Li
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Bencheng Zhao
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Fengxian Qiu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Tao Zhang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; Institute of Green Chemistry and Chemical Technology, Jiangsu University, Zhenjiang 212013, China.
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11
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Wen L, Shi G, Sun Y, Cui Y, Zhang S, Chen X, Cheng J, Wang J, Xin B. Rapid and efficient extraction of Zn from wasted Zn-rich paint residue by indirect bioleaching and successive production of high-purity ZnCO 3/ZnO by precipitation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 342:118294. [PMID: 37295149 DOI: 10.1016/j.jenvman.2023.118294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 05/17/2023] [Accepted: 05/28/2023] [Indexed: 06/12/2023]
Abstract
Waste zinc-rich paint residue (WZPR) represents a typical hazardous waste containing both toxic organic substances and heavy metals. The extraction of Zn from WZPR by traditional direct bioleaching has been attracting attention owing to its eco-friendliness, energy conservation and low cost. However, a long bioleaching time and a low Zn release cast a shadow on the reputed bioleaching. To shorten the bioleaching time, the spent medium (SM) process was first used to free Zn from WZPR in this study. The results showed that the SM process had a much higher performance in Zn extraction. Zn removals of 100% and 44.2% (8.6 g/L and 15.2 g/L in the released concentration) were gained within 24 h under pulp densities of 2.0% and 8.0%, respectively, being over 1000 times of the release performance of Zn by previously reported direct bioleaching. On the one hand, the biogenic H+ in SM attacks ZnO to liberate Zn (Ⅱ) via quick acid dissolution. On the other hand, the biogenic Fe3+ not only highly oxidizes Zn0 in WZPR to generate and release Zn2+ but also intensely hydrolyzes to produce H+ to attack ZnO for further dissolution of Zn2+. Both biogenic H+ and Fe3+ contribute to over 90% of Zn extraction as the leading indirect bioleaching mechanism. Due to the high concentration of released Zn2+ and fewer impurity, the bioleachate was used to successfully produce high-purity ZnCO3/ZnO using a simple precipitation, thus achieving the high-value recycling of Zn in WZPR.
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Affiliation(s)
- Lingkai Wen
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Gongchu Shi
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Yingqin Sun
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Yanchao Cui
- College of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100080, PR China
| | - Shihao Zhang
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Xiaohui Chen
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Jian Cheng
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China
| | - Jia Wang
- Tangshan Research Institute, Beijing Institute of Technology, Tangshan, 063000, PR China; College of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100080, PR China
| | - Baoping Xin
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China; Tangshan Research Institute, Beijing Institute of Technology, Tangshan, 063000, PR China.
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Cao C, Xu X, Wang G, Yang Z, Cheng Z, Zhang S, Li T, Pu Y, Lv G, Xu C, Cai J, Zhou W, Li F, Pu Z, Li X. Characterization of ionic liquids removing heavy metals from electroplating sludge: Influencing factors, optimisation strategies and reaction mechanisms. CHEMOSPHERE 2023; 324:138309. [PMID: 36889480 DOI: 10.1016/j.chemosphere.2023.138309] [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: 12/18/2022] [Revised: 02/21/2023] [Accepted: 03/03/2023] [Indexed: 06/18/2023]
Abstract
The disposal of electroplating sludge (ES) is a common concern of researchers. Currently, it is difficult to achieve effective fixation of heavy metals (HMs) using traditional ES treatment. As green and effective HMs removal agents, ionic liquids can be used for the disposal of ES. In this study, 1-butyl-3-methyl-imidazole hydrogen sulphate ([Bmim]HSO4) and 1-propyl sulphonic acid-3-methyl imidazole hydrogen sulphate ([PrSO3Hmim]HSO4) were used as washing solvents for the removal of Cr, Ni, and Cu from ES. In reaction with increased agent concentration, solid-liquid ratio, and duration, the amount of HMs eliminated from ES rises, whereas opposite patterns were shown in response to rising pH. The quadratic orthogonal regression optimisation analysis also revealed that the ideal washing specifications for [Bmim]HSO4 were 60 g L-1, 1:40, and 60 min, respectively, for agent concentration, solid-liquid ratio, and washing time, while those for [PrSO3Hmim]HSO4 were 60 g L-1, 1:35, and 60 min, respectively. Under the optimal experimental conditions, the Cr, Ni, and Cu removal efficiencies for [Bmim]HSO4 were 84.3, 78.6, and 89.7%, respectively, and those values for [PrSO3Hmim]HSO4 were 99.8, 90.1, and 91.3%, respectively. This was mainly attributed to that ionic liquids enhance metal desorption through acid solubilisation, chelation, and electrostatic attraction. Overall, ionic liquids are reliable washing reagents for ES contaminated by HMs.
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Affiliation(s)
- Chenchen Cao
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xiaoxun Xu
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China; Key Laboratory of Soil Environment Protection of Sichuan Province, Chengdu, 611130, China.
| | - Guiyin Wang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China; Key Laboratory of Soil Environment Protection of Sichuan Province, Chengdu, 611130, China
| | - Zhanbiao Yang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China; Key Laboratory of Soil Environment Protection of Sichuan Province, Chengdu, 611130, China
| | - Zhang Cheng
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China
| | - Shirong Zhang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China; Key Laboratory of Soil Environment Protection of Sichuan Province, Chengdu, 611130, China
| | - Ting Li
- College of Resources, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yulin Pu
- College of Resources, Sichuan Agricultural University, Chengdu, 611130, China
| | - Guochun Lv
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China
| | - Changlian Xu
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China
| | - Junzhuo Cai
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China
| | - Wei Zhou
- College of Resources, Sichuan Agricultural University, Chengdu, 611130, China
| | - Feng Li
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China
| | - Zhien Pu
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xiaofan Li
- Environmental Research Institute, Shandong University, Qingdao, 266237, China
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Cao C, Yu J, Xu X, Li F, Yang Z, Wang G, Zhang S, Cheng Z, Li T, Pu Y, Xian J, Yang Y, Pu Z. A review on fabricating functional materials by electroplating sludge: process characteristics and outlook. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:64827-64844. [PMID: 37093385 DOI: 10.1007/s11356-023-26934-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 04/06/2023] [Indexed: 05/03/2023]
Abstract
As the end product of the electroplating industry, electroplating sludge (ES) has a huge annual output and an abundant heavy metal (HM). The effective disposal of ES is attracting increasing attention. Currently, the widely used ES disposal methods (e.g. landfill and incineration) make it difficult to effectively control of HMs and synchronously utilise metal resources, leading to a waste of metal resources, HMs migration, and potential harm to the environment and human health. Therefore, techniques to limit HMs release into the environment and promote the efficient utilisation of metal resources contained within ES are of great interest. Based on these requirements, material reuse is a great potential means of ES management. This review presents an overview of the process flows, principles and feasibilities of the methods employed for the material reuse of ES. Several approaches have been investigated to date, including (1) additions in building materials, (2) application in pigment production, and (3) production of special functional materials. However, these three methods vary in their treatment scales, property requirements, ability to control HMs, and degree of utilisation of metal resources in ES. Currently, the safety of products and costs are not paid enough attention, and the large-scale disposal of HMs is not concordant with the effective management of HMs. Accordingly, this study proposes a holistic sustainable materialised reuse pattern of ES, which combines the scale and efficiency of sludge disposal and pays attention to the safety of products and the cost of transformation process for commercial application.
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Affiliation(s)
- Chenchen Cao
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jian Yu
- School of Geography and Tourism, Key Laboratory of Earth Surface Processes and Regional Response in the Yangtze-Huaihe River Basin, Anhui Normal University, Wuhu, 241003, China
| | - Xiaoxun Xu
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China.
- Key Laboratory of Soil Environment Protection of Sichuan Province, Chengdu, 611130, China.
| | - Feng Li
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China
| | - Zhanbiao Yang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Soil Environment Protection of Sichuan Province, Chengdu, 611130, China
| | - Guiyin Wang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Soil Environment Protection of Sichuan Province, Chengdu, 611130, China
| | - Shirong Zhang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Soil Environment Protection of Sichuan Province, Chengdu, 611130, China
| | - Zhang Cheng
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ting Li
- College of Resources, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yulin Pu
- College of Resources, Sichuan Agricultural University, Chengdu, 611130, China
| | - Junren Xian
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yuanxiang Yang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 611130, China
| | - Zhien Pu
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
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