Chemical Engineering Research & Design最新文献

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Efficient recycle of palladium from wastewater by modified fumed nano-silica composites: Synthesis, adsorption, kinetics and mechanisms

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Research & Design

Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2024.12.034

Yan Li, Sisi Tang, Hang Lei, Yuxia Zhong, Yue-Fei Zhang

In this paper, two adsorbents based on hydrophilic and hydrophobic fumed silica carriers for efficient recovery of palladium were prepared using 1,4,7,10-tetraazacyclododecane as a functional group. These functional adsorbents were characterized by FT-IR, SEM and BET. The effects of pH (2−6), contact time (1–480 min), and temperature (25–55℃) on the adsorption performance were investigated. The concentration of palladium(II) after adsorption was determined by flame atomic absorption spectrometry and the data were analyzed by kinetic, thermodynamic and isotherm fitting. At pH = 4, the adsorption conformed to Pseudo-second-order kinetic model, with rapid adsorption within 2 h and able to reach equilibrium within 5 h. Meanwhile, the Langmuir model was able to better describe the isotherm data, with the maximum adsorption exceeding 140 mg·g⁻¹. Moreover, the thermodynamic analysis indicated that the adsorption was a heat-absorbing spontaneous process. The combination of XPS and DFT calculations elucidated the adsorption and desorption mechanisms, emphasized the potential of these adsorbents for the recovery of Pd(II) from aqueous solutions, and contributed to the development of sustainable and effective adsorption technologies.

{"title":"Efficient recycle of palladium from wastewater by modified fumed nano-silica composites: Synthesis, adsorption, kinetics and mechanisms","authors":"Yan Li, Sisi Tang, Hang Lei, Yuxia Zhong, Yue-Fei Zhang","doi":"10.1016/j.cherd.2024.12.034","DOIUrl":"10.1016/j.cherd.2024.12.034","url":null,"abstract":"<div><div>In this paper, two adsorbents based on hydrophilic and hydrophobic fumed silica carriers for efficient recovery of palladium were prepared using 1,4,7,10-tetraazacyclododecane as a functional group. These functional adsorbents were characterized by FT-IR, SEM and BET. The effects of pH (2−6), contact time (1–480 min), and temperature (25–55℃) on the adsorption performance were investigated. The concentration of palladium(II) after adsorption was determined by flame atomic absorption spectrometry and the data were analyzed by kinetic, thermodynamic and isotherm fitting. At pH = 4, the adsorption conformed to Pseudo-second-order kinetic model, with rapid adsorption within 2 h and able to reach equilibrium within 5 h. Meanwhile, the Langmuir model was able to better describe the isotherm data, with the maximum adsorption exceeding 140 mg·g<sup>−1</sup>. Moreover, the thermodynamic analysis indicated that the adsorption was a heat-absorbing spontaneous process. The combination of XPS and DFT calculations elucidated the adsorption and desorption mechanisms, emphasized the potential of these adsorbents for the recovery of Pd(II) from aqueous solutions, and contributed to the development of sustainable and effective adsorption technologies.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"214 ","pages":"Pages 166-176"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microfluidic platform for alcoholic fermentation process: Ethanol production and on-line quantification

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Research & Design

Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2025.01.046

Mariana G.M. Lopes , Vania Silverio , Harrson S. Santana , Osvaldir P. Taranto

A microfluidic platform for alcoholic fermentation process can consist of a millireactor for the ethanol production and a microsensor for ethanol detection. Millireactors with immobilized yeast were previously developed and reached an average ethanol production of 1.42 % (v/v). The objective of this study was to develop and fabricate an ethanol microsensor and integrate it into a microfluidic platform. The microsensor composed of an ethanol-responsive membrane was manufactured using xurography and the sealing of Polydimethylsiloxane (PDMS) with the polymeric membrane were performed. Polyethersulfone (PES) membrane characteristics such as the number and size of pores and the dispersion of the Poly(N-isopropylacrylamide) (PNIPAM) nanogels were investigated. In the permeate flow tests the microsensors showed an increase in permeability with increasing ethanol concentration. The integration of the microfluidic platform was performed using a millireactor and a microsensor that were coupled to perform the fermentation process and monitor ethanol production. The sensor was able to measure an ethanol concentration of 1.97 % (v/v) for the collected samples in the millireactor. Therefore, it is possible to integrate, manufacture, and operate a microfluidic platform composed of the millireactor and the ethanol microsensor for the production and quantification of alcoholic fermentation.

{"title":"Microfluidic platform for alcoholic fermentation process: Ethanol production and on-line quantification","authors":"Mariana G.M. Lopes , Vania Silverio , Harrson S. Santana , Osvaldir P. Taranto","doi":"10.1016/j.cherd.2025.01.046","DOIUrl":"10.1016/j.cherd.2025.01.046","url":null,"abstract":"<div><div>A microfluidic platform for alcoholic fermentation process can consist of a millireactor for the ethanol production and a microsensor for ethanol detection. Millireactors with immobilized yeast were previously developed and reached an average ethanol production of 1.42 % (v/v). The objective of this study was to develop and fabricate an ethanol microsensor and integrate it into a microfluidic platform. The microsensor composed of an ethanol-responsive membrane was manufactured using xurography and the sealing of Polydimethylsiloxane (PDMS) with the polymeric membrane were performed. Polyethersulfone (PES) membrane characteristics such as the number and size of pores and the dispersion of the Poly(N-isopropylacrylamide) (PNIPAM) nanogels were investigated. In the permeate flow tests the microsensors showed an increase in permeability with increasing ethanol concentration. The integration of the microfluidic platform was performed using a millireactor and a microsensor that were coupled to perform the fermentation process and monitor ethanol production. The sensor was able to measure an ethanol concentration of 1.97 % (v/v) for the collected samples in the millireactor. Therefore, it is possible to integrate, manufacture, and operate a microfluidic platform composed of the millireactor and the ethanol microsensor for the production and quantification of alcoholic fermentation.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"215 ","pages":"Pages 398-407"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Studies on the physical properties of the Three-Liquid-Phase System of n-Hexane-ethanol-NaH2PO4-water

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Research & Design

Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2024.12.020

Chaitra Chandrakant Shanbhag, Regupathi Iyyaswami, Prasanna D. Belur

The physical properties, density, viscosity, and refractive index of equilibrated phases of the Three-Liquid-Phase System (TLPS) formed by n-Hexane+ethanol+sodium dihydrogen phosphate (NaH₂PO₄) +water were determined at 303.15 K and analysed as a function of change in concentration of individual phase forming components. The ternary plots were plotted to locate the shift in three-phase region with variation in system components. It was observed that the increase in total concentration of both ethanol and NaH₂PO₄ in a system showed a reduction of density and viscosity in the middle phase and was found to increase in the top and bottom phases; however, the refractive index of all three phases was increased. The effect of change in concentration of n-Hexane was observed to be different, like the density and viscosity of top and middle phases were found to decrease with increasing concentration of n-Hexane, and both the properties were found to increase in the bottom phase. In contrast, the refractive index of the top and bottom phases decreased with increasing concentration of n-Hexane. The influence of tie line lengths (TLL), which indicates the equilibrium characteristics between the phases, on the interfacial tension between the phases was also studied.

{"title":"Studies on the physical properties of the Three-Liquid-Phase System of n-Hexane-ethanol-NaH2PO4-water","authors":"Chaitra Chandrakant Shanbhag, Regupathi Iyyaswami, Prasanna D. Belur","doi":"10.1016/j.cherd.2024.12.020","DOIUrl":"10.1016/j.cherd.2024.12.020","url":null,"abstract":"<div><div>The physical properties, density, viscosity, and refractive index of equilibrated phases of the Three-Liquid-Phase System (TLPS) formed by n-Hexane+ethanol+sodium dihydrogen phosphate (NaH<sub>2</sub>PO<sub>4</sub>) +water were determined at 303.15 K and analysed as a function of change in concentration of individual phase forming components. The ternary plots were plotted to locate the shift in three-phase region with variation in system components. It was observed that the increase in total concentration of both ethanol and NaH<sub>2</sub>PO<sub>4</sub> in a system showed a reduction of density and viscosity in the middle phase and was found to increase in the top and bottom phases; however, the refractive index of all three phases was increased. The effect of change in concentration of n-Hexane was observed to be different, like the density and viscosity of top and middle phases were found to decrease with increasing concentration of n-Hexane, and both the properties were found to increase in the bottom phase. In contrast, the refractive index of the top and bottom phases decreased with increasing concentration of n-Hexane. The influence of tie line lengths (TLL), which indicates the equilibrium characteristics between the phases, on the interfacial tension between the phases was also studied.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"214 ","pages":"Pages 18-27"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Integrating metaheuristic methods and deterministic strategies for optimizing supply chain equipment design in process engineering

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Research & Design

Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2024.12.021

Jesús Manuel Núñez-López , Juan Gabriel Segovia-Hernández , Eduardo Sánchez-Ramírez , José María Ponce-Ortega

In recent years, the escalating use of supply chains in process engineering has highlighted the need for efficient regional resource distribution. Traditionally, supply chains are designed through deterministic optimization models. However, these models require significant simplifications to mathematically represent the equipment design in these supply chains because of the complexity and nonlinearity these formulations bring to the problem, often leading to suboptimal solutions. This work proposes a novel methodology integrating deterministic and metaheuristic optimization techniques to address this challenge comprehensively. By combining these methods, the approach optimizes supply chain logistics and equipment design, enhancing overall performance, cost-efficiency, and sustainability. A case study on the polystyrene supply chain in Mexico demonstrates the effectiveness of our strategy, showcasing significant economic, environmental, and operational benefits. Two different schemes were used, a direct separation sequence and an indirect separation sequence. The results show that the direct separation sequence is better both economically and environmentally, due to the high energy consumption of the indirect separation. This integrated approach offers a robust mathematical tool for decision-making, setting a new standard in supply chain optimization.

{"title":"Integrating metaheuristic methods and deterministic strategies for optimizing supply chain equipment design in process engineering","authors":"Jesús Manuel Núñez-López , Juan Gabriel Segovia-Hernández , Eduardo Sánchez-Ramírez , José María Ponce-Ortega","doi":"10.1016/j.cherd.2024.12.021","DOIUrl":"10.1016/j.cherd.2024.12.021","url":null,"abstract":"<div><div>In recent years, the escalating use of supply chains in process engineering has highlighted the need for efficient regional resource distribution. Traditionally, supply chains are designed through deterministic optimization models. However, these models require significant simplifications to mathematically represent the equipment design in these supply chains because of the complexity and nonlinearity these formulations bring to the problem, often leading to suboptimal solutions. This work proposes a novel methodology integrating deterministic and metaheuristic optimization techniques to address this challenge comprehensively. By combining these methods, the approach optimizes supply chain logistics and equipment design, enhancing overall performance, cost-efficiency, and sustainability. A case study on the polystyrene supply chain in Mexico demonstrates the effectiveness of our strategy, showcasing significant economic, environmental, and operational benefits. Two different schemes were used, a direct separation sequence and an indirect separation sequence. The results show that the direct separation sequence is better both economically and environmentally, due to the high energy consumption of the indirect separation. This integrated approach offers a robust mathematical tool for decision-making, setting a new standard in supply chain optimization.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"214 ","pages":"Pages 93-104"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Security analysis of ethylene glycol production pathways

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Research & Design

Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2024.12.024

Jinqiang Liang , Danzhu Liu , Xunming Su , Xiaoling Xu , Yong Yi , Shuliang Xu , Mao Ye

In the production process of ethylene glycol (EG), which is considered a crucial basic chemical material, China's energy consumption and carbon emissions are greatly affected. This study examines seven different routes for EG production, focusing on their security implications. To evaluate the security of these production routes, a framework is proposed that considers various aspects of the chemical industry chain involved in EG production. The evaluation is conducted across five dimensions, namely the raw materials, technology, economics, environment, and energy consumption. The results show that CTEG and BTEG processes have advantage of high security performance in the raw materials scenario (R-Scenario). Corresponding, CTEG-2 and BTEG-1 routes have advantage of high security performance in the technology scenario (T-Scenario). NTEG and BTEG routes should be adopted according to environment scenario (E-Scenario). In the cost scenario (C-Scenario) and energy consumption scenario (EC-Scenario), OTEG and NTEG routes have the benefit of superior security capabilities because much better economic performance and low energy consumption compared with other routes. The findings of this study serve as a crucial foundation for enhancing the manufacturing process of EG. Additionally, it aids decision makers in selecting the most appropriate production method for EG, taking into account the prevailing circumstances.

{"title":"Security analysis of ethylene glycol production pathways","authors":"Jinqiang Liang , Danzhu Liu , Xunming Su , Xiaoling Xu , Yong Yi , Shuliang Xu , Mao Ye","doi":"10.1016/j.cherd.2024.12.024","DOIUrl":"10.1016/j.cherd.2024.12.024","url":null,"abstract":"<div><div>In the production process of ethylene glycol (EG), which is considered a crucial basic chemical material, China's energy consumption and carbon emissions are greatly affected. This study examines seven different routes for EG production, focusing on their security implications. To evaluate the security of these production routes, a framework is proposed that considers various aspects of the chemical industry chain involved in EG production. The evaluation is conducted across five dimensions, namely the raw materials, technology, economics, environment, and energy consumption. The results show that CTEG and BTEG processes have advantage of high security performance in the raw materials scenario (R-Scenario). Corresponding, CTEG-2 and BTEG-1 routes have advantage of high security performance in the technology scenario (T-Scenario). NTEG and BTEG routes should be adopted according to environment scenario (E-Scenario). In the cost scenario (C-Scenario) and energy consumption scenario (EC-Scenario), OTEG and NTEG routes have the benefit of superior security capabilities because much better economic performance and low energy consumption compared with other routes. The findings of this study serve as a crucial foundation for enhancing the manufacturing process of EG. Additionally, it aids decision makers in selecting the most appropriate production method for EG, taking into account the prevailing circumstances.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"214 ","pages":"Pages 65-77"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conceptual design, process simulation and economic evaluation for the production of synthetic fuels in Argentina

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Research & Design

Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2025.01.010

Eduardo M. Izurieta , Benjamín Cañete , Marisa N. Pedernera , Eduardo López

This paper presents the design and economic evaluation of an industrial plant for the production of e-fuels, specifically oriented to e-kerosene. The study deals with the conceptual design of the process, focusing on equipment sizing and thermal integration to optimize energy efficiency and kerosene yield. Key components of the plant include the synthesis gas production (reverse water gas shift), the Fischer-Tropsch synthesis unit, the hydrocracking reactor and distillation train. Auxiliary services (cooling water service and steam production and use) are included as well. Both hydrogen (produced electrolytically from wind energy) and carbon dioxide (captured from exhaust gas turbine nearby the plant) are considered as raw materials for the process under study. Results indicate a consumption of 0.8 kg_H2/kg_fuel and 3.1 kg_CO2/kg_fuel with a kerosene yield of ca. 75 %. The economic assessment considers capital and operating expenditures (CAPEX and OPEX), market conditions. Profitability indicators, such as Net Present Value (NPV), Internal Rate of Return (IRR), Payback Period (PBP) and Levelized Cost of Fuel (LCoF), are used to evaluate the plant's financial viability. A sensitivity analyses explores the influence of hydrogen costs and kerosene selling pricing over the internal rate of return.

{"title":"Conceptual design, process simulation and economic evaluation for the production of synthetic fuels in Argentina","authors":"Eduardo M. Izurieta , Benjamín Cañete , Marisa N. Pedernera , Eduardo López","doi":"10.1016/j.cherd.2025.01.010","DOIUrl":"10.1016/j.cherd.2025.01.010","url":null,"abstract":"<div><div>This paper presents the design and economic evaluation of an industrial plant for the production of e-fuels, specifically oriented to e-kerosene. The study deals with the conceptual design of the process, focusing on equipment sizing and thermal integration to optimize energy efficiency and kerosene yield. Key components of the plant include the synthesis gas production (reverse water gas shift), the Fischer-Tropsch synthesis unit, the hydrocracking reactor and distillation train. Auxiliary services (cooling water service and steam production and use) are included as well. Both hydrogen (produced electrolytically from wind energy) and carbon dioxide (captured from exhaust gas turbine nearby the plant) are considered as raw materials for the process under study. Results indicate a consumption of 0.8 kg<sub>H2</sub>/kg<sub>fuel</sub> and 3.1 kg<sub>CO2</sub>/kg<sub>fuel</sub> with a kerosene yield of ca. 75 %. The economic assessment considers capital and operating expenditures (CAPEX and OPEX), market conditions. Profitability indicators, such as Net Present Value (NPV), Internal Rate of Return (IRR), Payback Period (PBP) and Levelized Cost of Fuel (LCoF), are used to evaluate the plant's financial viability. A sensitivity analyses explores the influence of hydrogen costs and kerosene selling pricing over the internal rate of return.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"214 ","pages":"Pages 377-389"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Incorporating convection into the solution-diffusion framework enhances modeling accuracy in reverse osmosis

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Research & Design

Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2025.01.012

Mingheng Li , Joseph Li

Several linear correlation equations are derived from the classical solution-diffusion theory and applied to analyze over 100 experimental datasets collected under constant and sinusoidally varying feed flows and pressures. While the theory provides reasonable predictions for water flux, it fails to accurately model permeate concentration, particularly in cases of membrane degradation. Incorporating convective transport over a small portion of the membrane successfully captures the recovery rate and permeate quality across all scenarios studied (R

^{2} \geq

0.99). This enhanced model, with only three parameters, holds significant potential for advancing future membrane transport modeling efforts.

引用次数: 0

Drift-flux parameters of heterogeneous bubbly flows in air–water cylindrical bubble column

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Research & Design

Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2025.01.033

Shohei Sasaki , Ryo Kurimoto , Kosuke Hayashi

An experimental database of the total gas holdup,

α_{G}

, of heterogeneous bubbly flows in air–water bubble columns was constructed from the literature data (612 points). Ranges of the superficial gas velocity,

J_{G}

, the initial liquid height,

H_{0}

, and the column diameter,

D_{H}

, were

0.003 \leq J_{G} \leq 0.40 m/s

400 \leq H_{0} \leq 6600 mm

and

200 \leq D_{H} \leq 3000 mm

, respectively. The dependencies of the drift-flux model’s parameters, i.e., the distribution parameter,

C_{0}

, and the drift velocity,

V_{G J}

, on

H_{0}

were investigated based on the

α_{G}

database and were introduced into the

α_{G}

correlation. The present correlation in terms of the Froude number using

H_{0}

as the characteristic length gives good evaluations for the

α_{G}

database.

引用次数: 0

Hydrometallurgy recycling of heavy metals from electroplating sludge: Recent development and challenge

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Research & Design

Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2024.12.035

Zhu Suiyi , Lan Xin , Zheng Minglin , Lin Yingzi , Li Siwen , Htet Oo Kaung , Yang Weilu , Qin Wensheng , Jadambaa Temuujin , Yu Yang , Liu Jiancong , Luo Wenjing , Chen Yu

Electroplating sludge contains various heavy metals along with impurities such as iron, aluminum, silicon, and calcium. The hydrometallurgical route offers significant advantages for recovering high-purity heavy metal products from sludge, including sponge, salt, and oxyhydroxides. This paper reviews classical hydrometallurgical processes, such as selective leaching, thermochemical extraction, precipitation, and crystallization. Given the co-dissolution of heavy metals and impurities in acidic or alkaline solutions, the efficient separation of impurities is emphasized to simplify these often complex hydrometallurgical processes. Additionally, this review explores the chemical transformation and separation of impurities into byproducts such as gypsum, anorthite, hematite, giniite, boehmite, and natroalunite. Ultimately, this review provides a theoretical foundation for the effective treatment and resource recovery of industrial electroplating sludge.

{"title":"Hydrometallurgy recycling of heavy metals from electroplating sludge: Recent development and challenge","authors":"Zhu Suiyi , Lan Xin , Zheng Minglin , Lin Yingzi , Li Siwen , Htet Oo Kaung , Yang Weilu , Qin Wensheng , Jadambaa Temuujin , Yu Yang , Liu Jiancong , Luo Wenjing , Chen Yu","doi":"10.1016/j.cherd.2024.12.035","DOIUrl":"10.1016/j.cherd.2024.12.035","url":null,"abstract":"<div><div>Electroplating sludge contains various heavy metals along with impurities such as iron, aluminum, silicon, and calcium. The hydrometallurgical route offers significant advantages for recovering high-purity heavy metal products from sludge, including sponge, salt, and oxyhydroxides. This paper reviews classical hydrometallurgical processes, such as selective leaching, thermochemical extraction, precipitation, and crystallization. Given the co-dissolution of heavy metals and impurities in acidic or alkaline solutions, the efficient separation of impurities is emphasized to simplify these often complex hydrometallurgical processes. Additionally, this review explores the chemical transformation and separation of impurities into byproducts such as gypsum, anorthite, hematite, giniite, boehmite, and natroalunite. Ultimately, this review provides a theoretical foundation for the effective treatment and resource recovery of industrial electroplating sludge.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"214 ","pages":"Pages 269-280"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comment on “Comparative phenomenological modeling of the overall adsorption rate of drugs onto activated carbon. The case of the chlorpheniramine”

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Research & Design

Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2025.01.019

Khim Hoong Chu, Mohd Ali Hashim

引用次数: 0

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