Article
Engineering, Environmental
Jianrong Xue, Dongping Long, Hong Zhong, Shuai Wang, Lihua Liu
Summary: The novel technology proposed in this study can effectively recover arsenic and antimony from arsenic-rich copper smelter dust, with recovery rates of over 97.5% for both elements through leaching and reduction steps.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
H. Ozaki, K. Yoshimura, Y. Asaoka, S. Hayashi
Summary: This study found that abrasion of brake lining in automobiles is a major source of antimony (Sb) on roads, leading to significantly higher Sb concentrations in sewer water during rainy weather. Results showed that Sb concentrations were higher in road effluent compared to other samples, and decreased in sewer water over time during a wash-off event.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2021)
Article
Environmental Sciences
Xuan Chang, Yang Yu, Ying-Xia Li
Summary: The study found that the concentration of Sb in urban street dust is influenced by traffic congestion, with Sb concentrations in transportation areas significantly higher than residential and industrial areas, and significantly affected by road network density. The impact of traffic congestion on the Sb load of street dust depends on vehicle flowrate, with congestion only promoting an increase in Sb load when vehicle flowrate is high. The findings suggest that China needs to recycle brake pads and implement measures to alleviate traffic congestion and reduce brake pad wear to manage Sb emissions effectively.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Chemistry, Multidisciplinary
Erjun Zhang, Kanggen Zhou, Xuekai Zhang, Changhong Peng, Wei Chen, Dewen He
Summary: A method for the direct separation and recovery of arsenic from As, Cu, and Zn rich leaching liquor was proposed, which includes two steps: SO2 reduction and arsenic crystallization. Optimal conditions for arsenic reduction and recovery were determined, leading to high recovery efficiency of As2O3 and low loss percentage of Cu and Zn. Compared with traditional technologies, this new method offers improved recovery efficiency and reduced loss of valuable metals.
Article
Environmental Sciences
Huayan Huang, Kangkai Lin, Ling Lei, Yongyun Li, Yipeng Li, Ke Liang, Yuxian Shangguan, Heng Xu
Summary: This study investigated the effects of environmental factors on soil microbial communities under different levels of Sb-As co-contamination in an antimony mine area. The results showed a wide range of Sb and As contents in soil, with their concentrations affected by the distance to surface runoff. Soil environmental factors significantly influenced the microbial communities, and the interaction among microorganisms, heavy metal distribution, and geochemical factors shaped the microbial community. These findings contribute to a better understanding of the response of soil microorganisms to As-Sb distribution and geochemical factors in arable soils under Sb mining areas.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Rui Yang, Weimin Sun, Lifang Guo, Baoqin Li, Qi Wang, Duanyi Huang, Wenlong Gao, Rui Xu, Yongbin Li
Summary: Microorganisms can mediate the transformation of antimony and arsenic, thereby altering their mobility and toxicity. The contamination of antimony and arsenic has different effects on the alpha and beta diversities of protistan communities and their ecological networks. Arsenic contamination has a greater impact on protistan communities compared to antimony contamination.
ENVIRONMENTAL POLLUTION
(2022)
Article
Metallurgy & Metallurgical Engineering
Qin Yi, Ao Gong, Jia-cong Xu, Sheng-hui Wen, Zhi-feng Xu, Lei Tian
Summary: A novel method using a calcification transformation-carbothermal reduction process has been developed to treat arsenic alkali residue obtained from antimony smelting. The thermodynamic results show that the calcification transition increases the temperature difference between arsenic and antimony reduction, facilitating their separation. Under the optimal conditions, the arsenic and antimony in the residue achieve calcification rates of 99.67% and 98.74% respectively. The reduction of calcified slag under vacuum effectively separates arsenic and antimony, with a reduction rate of over 99% during the carbothermal reduction process. After reaction and purification by vacuum distillation, purities greater than 99.8% for As and Sb are obtained. Compared with traditional methods, this approach offers better separation and recovery of higher purity arsenic and antimony.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2023)
Article
Environmental Sciences
M. Philippe, P. Le Pape, E. Resongles, G. Landrot, R. Freydier, L. Bordier, B. Baptiste, L. Delbes, C. Baya, C. Casiot, S. Ayrault
Summary: Although antimony (Sb) contamination in urban areas is well-documented, there are still knowledge gaps regarding the sources and chemical forms of Sb in urban environments. This study focused on the fate of metallic contaminants emitted by non-exhaust road traffic in urban aquatic systems. The results showed that Sb enrichment was higher compared to other traffic-related contaminants, and the speciation of Sb varied with redox conditions. The presence of Sb-containing brake pad residues was also found. These findings highlight the importance of traffic emissions as a specific source of Sb in surface environments.
Article
Engineering, Environmental
Bing Wen, Jianwei Zhou, Peidong Tang, Xiaocen Jia, Weiqing Zhou, Jianbo Huang
Summary: The Xikuangshan mine, the largest antimony mine in the world, was studied to understand the source and mobility of antimony in water systems. It was found that oxidative weathering and leaching infiltration are the main processes for antimony mobilization, along with adsorption and mixing.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Chemical
Zanlang Tang, Xincun Tang, Haonan Liu, Zeyu Xiao
Summary: In this study, a clean process for recovering antimony and synthesizing scorodite was proposed, which can efficiently separate valuable antimony from toxic arsenic and mitigate arsenic pollution caused by the metallurgical process of nonferrous metals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Wei Ren, Yiyuan Ran, Yuanwang Mou, Yunxiang Cui, Baiyu Sun, Lang Yu, Daxue Wan, Deyong Hu, Ping Zhao
Summary: This study aims to explore the spatial distribution characteristics of antimony (Sb) and arsenic (As) and assess the associated risks in an abandoned Sb smelting area. Soil and groundwater samples were collected and the spatial distribution was mapped using the inverse distance weighted interpolation method. Hazard assessment was conducted using the geo-accumulation index and potential ecological hazard methods. The results showed high geological background values of Sb and As in the study area, with a decrease in their contents with increasing depth. The spatial distribution of Sb and As was influenced by slag distribution and rainfall leaching, and both showed high potential ecological hazards.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Metallurgy & Metallurgical Engineering
Ke Wang, Qin-meng Wang, Yuan-lin Chen, Zhong-chen LI, Xue-yi Guo
Summary: Substance flow analysis was used to study an antimony pyrometallurgical system. Antimony and arsenic were taken as the objective elements, and mass balance and substance flow charts were established based on the production system. Evaluating indicators such as direct recovery rate, waste recovery rate, and resource efficiency were set up. The results showed that the resource efficiency of antimony was 89.21%, and the recovery rates of antimony in volatilization smelting, reduction smelting, and refining were 78.79%, 91.00%, and 96.06% respectively. Moreover, 11.94 kg of arsenic is carried into the smelting system for every 1 ton of antimony produced, indicating its presence as a major impurity element. Recommendations for improving the resource efficiency of antimony and cleaner production were proposed based on the substance flow analysis.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2023)
Article
Biotechnology & Applied Microbiology
Barbora Dousova, Vaclav Bednar, Frantisek Buzek, Miloslav Lhotka, Bohuslava Cejkova, Eva Bedrnova
Summary: Different soil types show varying abilities to leach antimony released from brake pad abrasion, with clay soil able to leach more antimony but presenting a higher contamination risk due to a significantly higher gradient of transported antimony.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Physical
Minchang Kim, Yoonsang Ra, Sumin Cho, Sunmin Jang, Dongik Kam, Yeongcheol Yun, Hyeonsu Kim, Dongwhi Choi
Summary: This study investigates the natural control of the triboelectric effect in the brake system, developing smart brake pads to monitor brake abrasion level. The approach enables real-time perception of the brake pad status without the need for external power sources, contributing to damage prevention and efficient machine diagnosis.
Article
Chemistry, Inorganic & Nuclear
Christian Ritter, Nick Michel, Alina Rinow, Benjamin Ringler, Carsten von Hanisch
Summary: The stepwise synthesis of novel molecules containing As-Sb and As-Bi bonds was achieved by reacting tBu(2)ECl with tBuAs(H)Li to prepare binary interpnictogen compounds, followed by lithiation to obtain dimeric compounds. Compound 5 was found to be suitable for the preparation of longer chains, and the synthesis was confirmed through experiments.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Geochemistry & Geophysics
Frantisek Buzek, Bohuslava Cejkova, Ivana Jackova, Pavel Kram, Filip Oulehle, Oldrich Myska, Jan Curik, Frantisek Veselovsky, Martin Novak
APPLIED GEOCHEMISTRY
(2020)
Article
Geochemistry & Geophysics
Barbora Dousova, Eva Bedrnova, Pavel Reiterman, Martin Keppert, David Kolousek, Miloslav Lhotka, Libor Mastny
Summary: The waste building sludge (WBS) from concrete production showed high adsorption capacity, especially for certain cations. Fe-modified CSWFe and TSWFe demonstrated improved adsorption selectivity for anions. The adsorption capacity and selectivity varied for different ions.
Article
Chemistry, Multidisciplinary
Andrea Bernardos, Matej Bozik, Ana Montero, Edgar Perez-Esteve, Esther Garcia-Casado, Miloslav Lhotka, Adela Frankova, Maria Dolores Marcos, Jose Manuel Barat, Ramon Martinez-Manez, Pavel Kloucek
Summary: This study prepared biomimetic systems for the controlled release of eugenol inspired by natural plant defense mechanisms, and described their antifungal activity. Compared to systems capped with saccharides, maltodextrin- and maltose-capped systems release less eugenol in the absence of Aspergillus niger fungus but deliver more in its presence.
Article
Engineering, Environmental
Barbora Dousova, Frantisek Buzek, Bohuslava Cejkova, Iva Jackova, Zdena Lnenickova
Summary: The study found that higher temperature (23 degrees C) increased the release of As in soil when As was mainly bound to amorphous and poorly crystalline Fe phases, while the temperature effect on As release was negligible in soils with low total Fe and preferential As binding to well-crystallised Fe phases. The release of DOC, which strongly depends on temperature, controlled the mobilization of As.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Biotechnology & Applied Microbiology
Barbora Dousova, Vaclav Bednar, Frantisek Buzek, Miloslav Lhotka, Bohuslava Cejkova, Eva Bedrnova
Summary: Different soil types show varying abilities to leach antimony released from brake pad abrasion, with clay soil able to leach more antimony but presenting a higher contamination risk due to a significantly higher gradient of transported antimony.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Applied
Jaroslav Aubrecht, Violetta Pospelova, Oleg Kikhtyanin, Miloslav Lhotka, David Kubicka
Summary: The application of Cr-free Cu-based catalysts in ester hydrogenolysis is an environmentally-friendly research approach. This study investigated the performance of four different supported Cu-based catalysts on various supports. The results showed that Al2O3 support provided the best dispersion of nanoparticles, while Cu-TiO2 nanoparticles were prone to sintering. Cu-ZrO2 exhibited the best performance in the dimethyl adipate hydrogenolysis. Furthermore, the study revealed a correlation between the number of acid-base sites and catalyst selectivity.
Article
Environmental Sciences
Frantisek Buzek, Bohuslava Cejkova, Ivana Jackova, Radim Seibert, Jan Curik, Frantisek Veselovsky, Daniel A. Petrash
Summary: This study investigated the sources of airborne particulate matter (PM10) emissions in Ostrava, Czech Republic, with a focus on their organic carbon (OC) and elemental carbon (EC) contents, and carbon stable isotope composition (813C). Emission sources were identified using OC-613C values and concentration measurements, and the extent of long-term deposition was tracked using the black carbon (BC) 613C values of soil samples. The main sources of emissions were determined to be coal combustion, automotive emissions, and biogenic particles, with coal combustion being the dominant source in winter and automotive emissions and biogenic production contributing more in summer.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Electrochemistry
Gabriela Soukupova, Tereza Bautkinova, Petr Mazur, Jarmila Vilcakova, Jan Prokes, Marcela Dendisova, Miloslav Lhotka, Fatima Hassouna
Summary: In this study, flexible, lightweight, and electrically conductive composites based on renewable resources were developed for high performance sustainable energy storage devices. The correlation between the textural properties of the composite electrodes and the resulting properties was established. The composite electrodes exhibited remarkable cycling stability and specific capacitance retention.
ELECTROCHIMICA ACTA
(2023)
Article
Materials Science, Multidisciplinary
Hanna Sopha, Michal Baudys, Ludek Hromadko, Miloslav Lhotka, David Pavlinak, Josef Krysa, Jan M. Macak
Summary: This work demonstrates the preparation of homogenous TiO2 nanotube (TNT) layers with different thicknesses on large area Ti substrates via anodization. The TNT layers were successfully employed as photocatalysts for the degradation of model compounds in the gas phase under ISO standards.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Physical
Eva Vrbkova, Tomas Prejza, Miloslav Lhotka, Eliska Vyskocilova, Libor Cerveny
Summary: The Prins intramolecular cyclization of citronellal to produce isopulegol was studied using modified zeolites BETA with different Si/Al ratios and metal loadings of iron or zinc. It was found that impregnation with metal on Beta materials with Si/Al ratios of 38 and 75 increased catalytic activity, along with an increase in weak acid sites. In particular, Beta 38 with 1 wt.% iron loading showed high citronellal conversion and selectivity for isopulegol formation.
Proceedings Paper
Nanoscience & Nanotechnology
Barbora Dousova, Pavel Reiterman, Miloslav Lhotka, Martin Keppert, David Kolousek
11TH INTERNATIONAL CONFERENCE ON NANOMATERIALS - RESEARCH & APPLICATION (NANOCON 2019)
(2020)
Article
Chemistry, Physical
Eva Vrbkova, Eliska Vyskocilova, Miloslav Lhotka, Libor Cerveny
Proceedings Paper
Construction & Building Technology
Barbora Dousova, Pavel Reiterman, Martin Keppert, Miloslav Lhotka, David Kolousek, Libor Mastny, Eva Bedrnova
SPECIAL CONCRETE AND COMPOSITES 2019
(2020)
Article
Chemistry, Physical
Violetta Pospelova, Jaroslav Aubrecht, Katerina Pacultova, Miloslav Lhotka, Oleg Kikhtyanin, David Kubicka
CATALYSIS SCIENCE & TECHNOLOGY
(2020)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
