Article
Chemistry, Inorganic & Nuclear
Pengyu Zhang, Huan Zhou, Zhixiong Xu, Wenyang Li, Yong Guan, Liming Feng
Summary: The Mg/Al double hydroxyl composite metal hydroxide with interlayer anion CO32- was prepared using the co-deposition method. Mg/Al-CLDH was obtained by high-temperature calcination, and its potential to adsorb chloride ions in an aqueous solution was studied. The best adsorption effect was observed at a roasting temperature of 550 degrees C. The unit adsorption mass can reach 172 mg/L in a sodium chloride solution with a concentration of 2000 mg/L.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Yanying Hou, Lujie Liu, Qiaole He, Di Zhang, Jiayang Jin, Banghe Jiang, Liming Zhao
Summary: This study investigated the adsorption characteristics of chitooligosaccharides on ion-exchange resin and found that the adsorption equilibrium followed the Langmuir model, with adsorption capacity decreasing with increasing degree of polymerization. The adsorption kinetics were well described by the pseudo-second-order kinetic model. Liquid-film diffusion and intra-particle diffusion were identified as the rate-limiting steps for adsorption. Thermodynamic analysis revealed that the adsorption of chitooligosaccharides on HX-7 resin was spontaneous and feasible, with higher polymerization degrees leading to stronger interaction forces and more favorable adsorption.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Jose Hernandez, Daniel Ruiz
Summary: This study demonstrated the technical feasibility of recovering uranium from copper Pregnant Leaching Solutions (PLS) by using ion-exchange after removing chloride ions with electrodialysis (ED). The modified ED process successfully decreased the chloride content in the PLS, allowing for increased loading capacity of ion-exchange resins.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Water Resources
Farshad Farahbod
Summary: In this study, a strong anionic resin was used to remove chloride ions in the diethanolamine of a gas refinery's sweetening unit. The resin's performance and reaction conditions were evaluated using a laboratory pilot, and optimal amounts of water and sodium hydroxide solution were calculated. The capacity of the resin was found to be 20.77 g of chloride per liter, and a temperature of 50 degrees C was determined to be the optimal reaction temperature.
APPLIED WATER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Yanying Hou, Lujie Liu, Xingxing Zhang, Yuechao Zhu, Yongjun Qiu, Liming Zhao
Summary: Ion exchange resins have been investigated as a potential material for separating chitooligosaccharides (COSs) with different degrees of polymerization. The functional groups of the resin significantly affect the adsorption behavior of COSs. This study focused on the adsorption behaviors of COSs on macroporous cation exchange resins with different functional groups, providing insights into the functional group effect on the adsorption of COSs with different degrees of polymerization.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Physical
Milena Kostrzewa, Katarzyna Staszak, Dobrochna Ginter-Kramarczyk, Izabela Kruszelnicka, Wojciech Gora, Marek Baraniak, Grzegorz Lota, Magdalena Regel-Rosocka
Summary: This study investigated the removal of Cr(III) from nickel sulfate waste solutions using adsorption and precipitation methods. The results showed that precipitation with a NaOH solution was more efficient in removing Cr(III) compared to adsorption with Dowex G26 resin.
Article
Engineering, Environmental
Dana Tran, Jennifer Weidhaas
Summary: This study explores the treatment options for munitions wastewater contaminated with the explosive NTO. It demonstrates that anion exchange resins, specifically perchlorate selective resins, can effectively adsorb and desorb NTO. The kinetic experiments suggest that equilibrium adsorption between NTO and the resins can be achieved within 120 minutes.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Yue Sun, Yingpeng Gu, Heran Zhang, Xueyang Zhang
Summary: The study found that different functional groups of macroporous weak-base anion exchange resins have varying adsorption characteristics for aromatic acids in wastewater, with secondary amine resins showing higher adsorption capacities for aromatic acids in salt-rich environments.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Taoqing He, Chao Chen, Xingxing Li, Lei Zhu, Xinzhi Cai, Zhaozhu Zheng, Gang Li, Xiaoqin Wang
Summary: In this study, the use of local humidity swing (LHS) adsorption technology was explored for carbon dioxide (CO2) capture from air. By immobilizing ion exchange resin (IER) particles on fabrics with different hydrophilicities, an efficient CO2 adsorption system was achieved. The results showed that a hydrophobic polyester fabric exhibited superior CO2 adsorption capacity and stability compared to a hydrophilic cotton fabric. By combining the IER-coated fabric with a highly water-absorbing non-woven fabric, one-way moisture transfer was made possible, allowing for CO2 adsorption/desorption cycles. Additionally, the functionalized fabric, when combined with a silk/alginate composite hydrogel containing live microalgae, showed a higher proliferation rate, demonstrating the potential application of this dual-function system in reducing CO2 levels from the air.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Metallurgy & Metallurgical Engineering
Atefeh Azizitorghabeh, Harshit Mahandra, Juliana Ramsay, Ahmad Ghahreman
Summary: This study investigates the selective recovery of gold over copper from synthetic and real thiocyanate pregnant leach solution (PLS) using ion exchange resins. The results demonstrate that 100 g/L MTA 5011 resin can achieve 99% gold extraction and 12% copper extraction, while a solution of 0.01 M thiourea (TU) and 0.1 M H2SO4 is the most efficient for gold elution with 70% gold and 4% copper recovery.
Article
Biochemistry & Molecular Biology
Anna Wolowicz, Zbigniew Hubicki
Summary: The adsorption abilities of different ion exchange resins with different functional groups and a microporous resin without functional groups towards vanadium(V) ions were studied. The results showed that Purolite S984, Purolite A830, and Purolite A400TL exhibited the best removal ability for vanadium(V).
Article
Engineering, Environmental
Liping Tan, Tao Liu, Yimin Zhang, Nannan Xue, Pengcheng Hu
Summary: To address the issues with low saturated adsorption capacity and poor selective separation of vanadium and iron in vanadium shale acid leaching solution, a modified resin called DS418 resin was prepared by surface modification of D418 resin with sulfamic acid. Experimental results showed that DS418 resin had a saturated adsorption capacity of 112.36 mg/g, which was twice as much as that of D418 resin. Additionally, DS418 resin achieved a high adsorption rate of 92.19% for vanadium and a desorption rate of 98.37%.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Hefang Liu, Shunyan Ning, Shichang Zhang, Xinpeng Wang, Lifeng Chen, Toyohisa Fujita, Yuezhou Wei
Summary: A novel mesoporous ion exchange resin SiAaC based on a silica framework was designed and synthesized for efficient removal of Pd(II) from simulated electroplating wastewater, showing high adsorption capacity, selectivity, and reusability. The adsorption behavior of SiAaC resin on Pd(II) followed Langmuir isotherm and pseudosecond-order kinetic models, and it was proven to efficiently separate Pd(II) from wastewater through column experiments. FT-IR and XPS spectra confirmed an ion exchange mechanism between SiAaC and Pd(II). This research provides insights into the development of efficient materials for removing palladium from industrial wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Ge Zhang, Huifen Yang, Tong Zhao, Xuan Li, Yichen Zhou, Song Guo
Summary: The thermal adsorption residue (TDR) derived from oil sludge co-contaminated soil was found to effectively neutralize acid substances and adapt to a wide pH range. It demonstrated high adsorption capacities for four heavy metals, namely As(III), Zn(II), Cu(II), and Cd(II). There was a competitive adsorption among the three cations on TDR, and the presence of As(III) lowered the adsorption capacity of Zn(II), Cu(II), and Cd(II).
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Materials Science, Ceramics
Farida khan, A. Naeem, Israf Ud Din, T. Saeed, Mshari A. Alotaibi, Abdulrahman I. Alharthi, Asad Habib, Tabassum Malik
Summary: In this study, hexagonal boron nitride (h-BN) was synthesized and used as an efficient sorbent for the uptake of Cd2+ ions. The kinetics and sorption studies showed that the process of Cd2+ sorption remained endothermic, and the Ho's model was found to best interpret the adsorption kinetic data. The physicochemical properties of h-BN were characterized before and after adsorption, showing its effectiveness as an adsorbent for Cd2+ ions in aqueous media.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Environmental
Shun-Shun Chen, Xu-Xiu Chen, Tian-Yu Yang, Li Chen, Zheng Guo, Xing-Jiu Huang
Summary: A temperature-modulated sensing strategy was proposed to identify and determine BTEX compounds. Highly effective identification of BTEX was achieved using linear discrimination and convolutional neural network analyses. Additionally, quantitative analysis of concentration was accomplished by establishing the relationship between concentration and response.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Myungkyung Noh, Jeong Yeon Sim, Jisung Kim, Jee Hwan Ahn, Hye-Young Min, Jong-Uk Lee, Jong-Sook Park, Ji Yun Jeong, Jae Young Lee, Shin Yup Lee, Hyo-Jong Lee, Choon-Sik Park, Ho-Young Lee
Summary: This study reveals that chronic exposure to PM induces chronic inflammation and development of COPD by dysregulating NAD+ metabolism and subsequent SIRT1 deficiency in pulmonary macrophages. Activation of SIRT1 by resveratrol effectively mitigates PM-induced inflammation and COPD development. Targeting metabolic and epigenetic reprogramming in macrophages induced by PM is a promising strategy for COPD treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yu Liu, Linlin Qin, Yiming Qin, Tong Yang, Haoran Lu, Yulong Liu, Qiqi Zhang, Wenyan Liang
Summary: Co/NC/PAC electrode was prepared by compounding ZIF-67 with powder-activated carbon for the electrocatalytic treatment of nitrogen-containing heterocyclic compounds. The degradation efficiency of the four compounds reached 90.2-93.7% under optimal conditions, and the degradation order was pyridazine < pyrimidine < pyrazine < pyridine.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Julien Couturier, Pierre Tamba Oulare, Blanche Collin, Claire Lallemand, Isabelle Kieffer, Julien Longerey, Perrine Chaurand, Jerome Rose, Daniel Borschneck, Bernard Angeletti, Steven Criquet, Renaud Podor, Hamed Pourkhorsandi, Guilhem Arrachart, Clement Levard
Summary: This study analyzes the properties of bauxite residue samples and explores the influence of bauxite ore origin, storage conditions, and storage time. The results show that the speciation of yttrium is related to the origin of bauxite ore, while no significant variation was observed with storage conditions or aging of the residues.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Sakthinarenderan Saikumar, Ravi Mani, Mirunalini Ganesan, Inbakandan Dhinakarasamy, Thavamani Palanisami, Dharani Gopal
Summary: Microplastic contamination in marine ecosystems poses a growing concern due to its trophic transfer and negative effects on marine organisms. This study investigates the transfer and impacts of polystyrene microplastics in an estuarine food chain. The results show that microplastics can be transferred through the food chain, although the transfer rates are low. The exposed organisms exhibit stress responses, suggesting the potential risk of microplastics reaching humans through the food chain.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Review
Engineering, Environmental
Yan-Jiao Li, Ying Yuan, Wen-Bing Tan, Bei-Dou Xi, Hui Wang, Kun-Long Hui, Jia-Bao Chen, Yi-Fan Zhang, Lian-Feng Wang, Ren-Fei Li
Summary: This review investigated and analyzed the distribution, composition, and abundance of heavy metals and antibiotic resistance genes (ARGs) in landfill. The results showed that heavy metals have lasting effects on ARGs, and complexes of heavy metals and organic matter are common in landfill. This study provides a new basis to better understand the horizontal gene transfer (HGT) of ARGs in landfill.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Jessy Joseph, Ari Vaisanen, Ajay B. Patil, Manu Lahtinen
Summary: Efficient and environmentally friendly porous hybrid adsorbent beads have been developed for the removal of arsenic from drinking water. The structural tuning of the adsorbents has been shown to have a significant impact on their adsorption performance, with high crystallinity leading to increased adsorption capacity and selectivity towards As5+.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yangyang Liu, Minhua Xiao, Kaiqin Huang, Juntao Cui, Hongli Liu, Yingxin Yu, Shengtao Ma, Xihong Liu, Meiqing Lin
Summary: This study measured the levels of phthalate metabolites in breast milk collected from mothers in southern China. The results showed that phthalates are still prevalent in the region, and breastfeeding contributes to phthalate intake in infants. However, the levels detected do not pose significant health risks to infants based on dietary exposure. The increasing exposure to certain phthalates calls for further research into their sources and potential risks.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhiqiang Wu, Jianxing Sun, Liting Xu, Hongbo Zhou, Haina Cheng, Zhu Chen, Yuguang Wang, Jichao Yang
Summary: Ocean depth affects microbial diversity, composition, and co-occurrence patterns of microplastic microbial communities. Deterministic processes dominate the assembly of mesopelagic plastisphere microbial communities, while stochastic processes shape the assembly of bathypelagic microbial communities. The relationships between microorganisms in the mesopelagic layer are more complex and stable, with Proteobacteria and Actinobacteriota playing important roles.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Tingting Xiao, Renjie Chen, Chen Cai, Shijie Yuan, Xiaohu Dai, Bin Dong, Zuxin Xu
Summary: Based on the efficiency of catalytic ozonation techniques in enhancing sludge dewaterability, this study investigated its effectiveness in simultaneous reduction of antibiotics and antibiotic resistance genes. The results showed that catalytic ozonation conditioning changed the distribution of antibiotics and achieved high degradation rates. It also significantly reduced the abundance of ARGs, inhibited horizontal gene transfer, and decreased the signal transduction of typical ARGs host bacteria.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yang Deng, Xiaohong Guan
Summary: This article discusses two different development approaches for ferrate(VI) technology in water treatment, arguing that process integration is a promising method that can drive technological innovation and revolution in water treatment, achieving higher treatment efficiency, reduced costs and energy consumption, and a smaller physical footprint.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhe Zhang, Lu Zhang, Zhihao Huang, Yuxin Xu, Qingqing Zhao, Hongju Wang, Meiqing Shi, Xiangnan Li, Kai Jiang, Dapeng Wu
Summary: In this study, a floating catalytic foam was designed and prepared to enhance the mass transfer in immobilized photocatalysts for wastewater treatment. The floating catalytic foam could float on the water surface and establish a temperature gradient, effectively promoting the diffusion and adsorption of target molecules during the photocatalytic process.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Muhammad Nafees, Adiba Khan Sehrish, Sarah Owdah Alomrani, Linlin Qiu, Aasim Saeed, Shoaib Ahmad, Shafaqat Ali, Hongyan Guo
Summary: The accumulation of cadmium and antibiotics in edible plants and fertile soil is a worldwide problem. This study investigated the potential of zinc oxide nanoparticles to alleviate the toxicity of both cadmium and antibiotics and promote spinach growth.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Lurui Wan, Kai Wang, Yuan Chen, Zhiyong Xu, Wenbo Zhao
Summary: In this study, a low viscosity and high thermal stability SO2 absorbent with dual interacting sites was successfully synthesized. The absorbent showed the highest absorption enthalpy change and entropy change values among reported SO2 absorbents, and exhibited lower viscosity and comparable thermal stability to ILs.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhengwei Zhou, Guojie Ye, Yang Zong, Zhenyu Zhao, Deli Wu
Summary: This study utilized Mo powder and STPP to enhance the performance of the sodium percarbonate system in pollutant degradation. The presence of Mo and STPP resulted in a higher degradation rate of the model pollutant SMX, with low oxidant consumption. The system generated multiple active species through a series of chain reactions at different pH values, exhibiting excellent performance towards electron-rich pollutants. Furthermore, Mo demonstrated excellent stability and reusability.
JOURNAL OF HAZARDOUS MATERIALS
(2024)