Article
Metallurgy & Metallurgical Engineering
Vladimir Rychkov, Maxim Botalov, Evgeny Kirillov, Sergey Kirillov, Vladimir Semenishchev, Grigory Bunkov, Denis Smyshlyaev
Summary: Bauxite residue is a promising source of scandium, with nearly 150 tons of this trace metal appearing annually in waste dumps in the aluminum plants of the Ural region, Russia. A method of red mud carbonization by carbon dioxide has been described, resulting in scandium leaching and decrease of toxicity. Methods to increase scandium leaching degrees, such as ultrasonic treatment and mechanical activation, were evaluated. It was suggested that carbonated red mud had high sorption activity, causing secondary loss of scandium in the carbonate treatment process.
Article
Environmental Sciences
Bohan Xu, Qiang An, Shuman Deng, Zheng Li, Zihao Yang, Haoyu Wu, Zhihong Ye
Summary: In this study, a novel acid-modified red mud biochar catalyst was synthesized to activate peroxodisulfate for the degradation of TC. The catalyst exhibited remarkable adsorption capacity and the activated system achieved a high removal ratio of TC. The role of reactive oxygen species (1O2) in the degradation process was identified, and the surface Fe(II), -OH, and -COOH of the catalyst were found to play a key role in the activation of peroxodisulfate. Acid modification enhanced the surface structure and improved the catalytic efficiency of the biochar. This study provides new insights for the practical treatment of antibiotic wastewater and the resource utilization of red mud.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Review
Environmental Sciences
Ankita Naykodi, Saurabh C. Patankar, Bhaskar N. Thorat
Summary: The mining industry has played a vital role in advancing innovation, flexibility, and comfort in human life. However, the increasing amount of mining and associated industrial waste has raised concerns, emphasizing the need for proper management and safe disposal. Developing targeted technologies to utilize mining and industrial waste as secondary resources is crucial for sustainable mining operations. The review focuses on the case of alkaline bauxite residue (red mud)-alumina refinery waste and explores the potential of alkaliphile-assisted biomining as a sustainable alternative to conventional metal recovery processes. The study highlights the unique adaptation strategies of alkaliphiles in biomining red mud through bioleaching, biosorption, and bioaccumulation. It also emphasizes the importance of studying the indigenous alkaliphiles from red mud for industrial-scale application of alkaliphile-based technology.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Andrei Shoppert, Dmitry Valeev, Mamodou Malal Diallo, Irina Loginova, Marie Constance Beavogui, Abdukhakim Rakhmonov, Yevgeniy Ovchenkov, Denis Pankratov
Summary: This study investigates the hydrochemical conversion of goethite to magnetite in high-iron bauxite residue. The results demonstrate the possibility of obtaining pure magnetite and achieving high extraction ratio of aluminum under specific conditions.
Review
Construction & Building Technology
Jizhe Zhang, Zhanyong Yao, Kai Wang, Fei Wang, Hongguang Jiang, Ming Liang, Jincheng Wei, Gordon Airey
Summary: This paper reviews the recent research findings of utilizing red mud as a road material in pavement structures, focusing on road bases and asphalt mixtures. The incorporation of red mud in asphalt mastics can improve stiffness, while replacing limestone filler with red mud in asphalt mixtures has some positive mechanical effects. However, the addition of red mud may worsen moisture susceptibility and raveling resistance in asphalt mixtures and the long-term durability is still unclear.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Environmental Sciences
Waqas Ahmed, Sajid Mehmood, Mohsin Mahmood, Sehrish Ali, Awais Shakoor, Avelino Nunez-Delgado, Rana Muhammad Ammar Asghar, Hongwei Zhao, Wenjie Liu, Weidong Li
Summary: A red mud/biochar composite was synthesized from rice straw and showed high efficiency in removing Pb(II) from wastewater, with good reusability. This environmentally sustainable approach offers a potential solution for treating toxic chemicals.
ENVIRONMENTAL POLLUTION
(2023)
Article
Green & Sustainable Science & Technology
Song Cheng, Yongzhi Liu, Baolin Xing, Xiaojing Qin, Chuangxiang Zhang, Hongying Xia
Summary: Biochar produced from pyrolysis of poplar saw dust is used as a sustainable adsorbent for investigating the adsorption of Pb2+/Cd2+ from wastewater. The adsorption of Cd2+ is inhibited in different water systems, while the uptake of Pb2+ remains unaffected. Mineral precipitation and coordination with 7C electrons are identified as the main mechanisms for Pb2+ and Cd2+ adsorption, respectively.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Physical
Andrei Shoppert, Irina Loginova, Julia Napol'skikh, Aleksey Kyrchikov, Leonid Chaikin, Denis Rogozhnikov, Dmitry Valeev
Summary: This study investigates the possibility of selectively extracting cerium from alkali fusion red mud (RMF) using diluted nitric acid as a leaching agent. The results show that under certain conditions, with a leaching solution at pH 2 and 80 degrees Celsius for 90 minutes, the extraction efficiency of cerium reaches 71.2%.
Article
Microbiology
Guo-Hong Liu, Manik Prabhu Narsing Rao, Xiao-Ying Wang, Tong-Wei Chu, Bo Liu, Wen-Jun Li
Summary: Strain FJAT-44921(T) is a rod-shaped, Gram-stain-negative, spore-forming bacterium that can grow under alkaline conditions, with the main fatty acids being anteiso-C-15:0, iso-C-15:0, C-16:0, and anteiso-C-17:0.
ARCHIVES OF MICROBIOLOGY
(2021)
Article
Engineering, Environmental
Kehuan Xu, Qintie Lin, Xindan Fan, Junli Zheng, Yuxin Liu, Yongjie Ma, Jin He
Summary: Low-cost iron-based biochar catalysts (RM@BC-x) were synthesized by co-pyrolysis of waste red mud and spent coffee grounds after ball milling. RM@BC-800 exhibited remarkable adsorption capacity and successfully removed sulfamethoxazole (SMX) from solution in only 30 min. Singlet oxygen (O-1(2)) played a dominant role in the degradation of SMX, and five degradation pathways of SMX were proposed.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Construction & Building Technology
Lichao Feng, Wenliang Yao, Kai Zheng, Na Cui, Ning Xie
Summary: This article reviews the recycling technologies of bauxite residue (red mud) and other solid wastes, and the research progress of eco-friendly cementitious materials. The challenges faced in the recycling of red mud and the future research trends are discussed.
Review
Construction & Building Technology
Shaker M. A. Qaidi, Bassam A. Tayeh, Haytham F. Isleem, Afonso R. G. de Azevedo, Hemn Unis Ahmed, Wael Emad
Summary: This paper provides a systematic review of the use of waste red mud and slag for the production of red mud-slag geopolymer. It discusses the economic and environmental impacts, physical and chemical properties, and potential applications of red mud. The study also presents recent advancements in the usage of red mud and slag for geopolymer production.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Construction & Building Technology
Tobias Hertel, Amy Van den Bulck, Bart Blanpain, Yiannis Pontikes
Summary: The initial reactivity of slags produced using bauxite residue as the main raw material in cementitious systems was assessed. The study found a correlation between the structure of the slag's amorphous phase and reaction kinetics.
CEMENT & CONCRETE COMPOSITES
(2022)
Review
Metallurgy & Metallurgical Engineering
Pravin Kannan, Fawzi Banat, Shadi W. Hasan, Mohammud Abu Haija
Summary: The study shows that the use of Ca- and Mg-rich brines can effectively lower the pH and total alkalinity of bauxite residue, making it a cost-effective and environmentally friendly waste management technique.
Article
Engineering, Environmental
Qin Liang, Menghan Zhang, Cai Liang, Huichao Chen
Summary: The modified red mud was prepared for the remediation of Cr(VI) contaminated soil through thermal reduction with coconut shell. The efficiency of the modified red mud in reducing Cr(VI) in soil reached 100%. The mass ratio of the modified red mud to soil had the greatest impact on the reduction of Cr(VI) in soil, followed by pH and soil moisture.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Shannon Slattery, J. Tony Pembroke, John G. Murnane, Michael P. Ryan
SCIENTIFIC REPORTS
(2020)
Review
Microbiology
Michael P. Ryan, J. Tony Pembroke
Review
Environmental Sciences
O. Fenton, P. Tuohy, K. Daly, T. Moloney, P. Rice, J. G. Murnane
Summary: Runoff from farm roadways is a significant source of pollutants discharging to surface water, especially during the main grazing season. Studies show that roadway runoff contains a mix of legacy and incidental constituents such as phosphorus and Escherichia coli, which are temporarily mobilized during rainfall events. Management options include diverting runoff for passive treatment or applying chemical amendments to roadway surfaces.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Chemistry, Applied
Fernanda Zamboni, Chinonso Okoroafor, Michael P. Ryan, J. Tony Pembroke, Michal Strozyk, Mario Culebras, Maurice N. Collins
Summary: Contamination of biomaterials by Staphylococcus aureus is a major issue in clinical settings, with strategies to decrease biofilm-related infections being vital for the success of implantable devices. Utilizing hyaluronic acid (HA) with crosslinking strategies and reinforcing fibres can produce tailored gels with antimicrobial properties. These HA derivatives show excellent mechanical properties and antibacterial effects against Staphylococcus aureus.
CARBOHYDRATE POLYMERS
(2021)
Article
Biotechnology & Applied Microbiology
Bashir Ghanim, James J. Leahy, Thomas F. O'Dwyer, Witold Kwapinski, J. Tony Pembroke, John G. Murnane
Summary: The study explores the use of modified hydrochar derived from acid-treated poultry litter for the adsorption of Cr(VI) from aqueous solutions. Results show pH-dependent adsorption of Cr(VI) with high capacity and potential for regeneration.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2022)
Article
Energy & Fuels
Daniel T. Hickey, Daniel J. Hayes, J. Tony Pembroke, Michael P. Ryan, James J. Leahy
Summary: This study examined the effects of solvent extraction on novel feedstocks, revealing a strong association between Klason lignin levels and non-removed extractives. Additionally, total sugar determinations were lower following extractions, providing more accurate representations of structural cell-wall polysaccharides. Such determinations will assist in determining the best way to utilize novel feedstocks.
Review
Chemistry, Analytical
Sanober Farheen Memon, Ruoning Wang, Bob Strunz, Bhawani Shankar Chowdhry, J. Tony Pembroke, Elfed Lewis
Summary: This review introduces a range of optical fibre-based sensors for measuring ethanol, primarily in aqueous solution. The sensors are classified into four groups based on measurement techniques: absorption, external interferometric, internal fibre grating, and plasmonic sensing. Comparison of these sensors is done based on their characteristic performance indicators, including sensitivity, resolution, and measurement range. The potential application areas of these sensors in ethanol production are discussed, with particular emphasis on their utilization in the industrial and medical sectors driven by the emerging internet of things (IoT). The review concludes with a summary of the current status and future prospects of optical fibre ethanol sensors for industrial use.
Review
Microbiology
Michael P. P. Ryan, Nicolas Carraro, Shannon Slattery, J. Tony Pembroke
Summary: Integrative Conjugative Elements (ICEs) are mosaics that integrate and excise into and from the host genome and can transfer to a specific host range. They encode adaptive functions and have undergone epidemiological and molecular characterization, revealing diversity and function. Comparative analysis shows conservation of key functions and the evolution of adaptive genes through gene acquisition in hotspots and variable regions catalyzed by element-encoded recombinases. SXT/R391 ICEs carry IS elements, transposons, and a mutagenic DNA polymerase PolV, and retain adaptive functions related to specific niches.
CRITICAL REVIEWS IN MICROBIOLOGY
(2023)
Article
Chemistry, Analytical
Sanober Farheen Memon, Ruoning Wang, Bob Strunz, Bhawani Shankar Chowdhry, J. Tony Pembroke, Elfed Lewis
Summary: This paper presents a novel plastic optical fiber (POF) sensor with a balloon-shaped heterocore structure for real-time measurement of ultra-low concentrations of ethanol in microalgal bioethanol production. The sensor demonstrates high sensitivity (3 x 10(6) %/RIU) and resolution (7.9 x 10(-6)RIU) in the ethanol concentration ranges of 20 to 80 %v/v, 1 to 10 %v/v, 0.1 to 1 %v/v, and 0.00633 to 0.0633 %v/v. It is a promising candidate for bioethanol production and ethanol sensing applications.
Editorial Material
Microbiology
Edgardo Moreno, Earl A. Middlebrook, Pamela Altamirano-Silva, Sascha Al Dahouk, George F. Araj, Vilma Arce-Gorvel, Angela Arenas-Gamboa, Javier Ariza, Elias Barquero-Calvo, Giorgio Battelli, Wilson J. Bertu, Jose Maria Blasco, Mile Bosilkovski, Simeon Cadmus, Clayton C. Caswell, Jean Celli, Carlos Chacon-Diaz, Esteban Chaves-Olarte, Diego J. Comerci, Raquel Conde-Alvarez, Elizabeth Cook, Silvio Cravero, Maryam Dadar, Xavier De Boelle, Fabrizio De Massis, Ramon Diaz, Gabriela I. Escobar, Luis Fernandez-Lago, Thomas A. Ficht, Jeffrey T. Foster, Bruno Garin-Bastuji, Jacques Godfroid, Jean-Pierre Gorvel, Leyla Gueler, Sevil Erdenlig-Guerbilek, Amayel M. Gusi, Caterina Guzman-Verri, Jiang Hai, Gabriela Hernandez-Mora, Maite Iriarte, Nestor R. Jacob, Anne Keriel, Maamar Khames, Stephan Kohler, Jean-Jacques Letesson, Maite Loperena-Barber, Ignacio Lopez-Goni, John McGiven, Falk Melzer, Ricardo Mora-Cartin, Jacob Moran-Gilad, Pilar M. Munoz, Heinrich Neubauer, David O'Callaghan, Reuben Ocholi, Angel Onate, Piyush Pandey, Georgios Pappas, J. Tony Pembroke, Martin Roop, Nazaret Ruiz-Villalonos, Michael P. Ryan, Miriam Salvador-Bescos, Felix J. Sangari, Renato de Lima Santos, Aristarchos Seimenis, Gary Splitter, Marcela Suarez-Esquivel, Darem Tabbaa, Marcos David Trangoni, Renee M. Tsolis, Nieves Vizcaino, Gamal Wareth, Susan C. Welburn, Adrian Whatmore, Amaia Zuniga-Ripa, Ignacio Moriyon
Summary: Brucellae and Ochrobactrum spp. should be classified separately due to significant differences in structure, physiology, genomic traits, and pathogenicity.
JOURNAL OF CLINICAL MICROBIOLOGY
(2023)
Article
Engineering, Environmental
Bashir Ghanim, Thomas F. O'Dwyer, James J. Leahy, Karin Willquist, Ronan Courtney, J. Tony Pembroke, John G. Murnane
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2020)
Article
Engineering, Environmental
Francisco de Borja Ojembarrena, Elena Fuente, Angeles Blanco, Carlos Negro
Summary: Accumulation of Cr(VI) in industrial fiber cement process water can affect product quality and health, and it needs to be removed to avoid environmental risks. The study found that cationic cellulose nanocrystals (CCNCs) have higher adsorption efficiency and lower cost compared to conventional adsorbents.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Review
Engineering, Environmental
Shentan Liu, Yangchen Zhang, Xiaojuan Feng, Sang-Hyun Pyo
Summary: This paper summarizes the common problems of constructed wetlands (CWs) and proposes corresponding optimized solutions, including thermal insulation and additional aeration in cold climates, choosing suitable plant species and planting patterns to enhance phytoremediation in CWs, using various methods to monitor and evaluate CW clogging, implementing anti-clogging measures, controlling greenhouse gas emissions during CW treatment, constructing and utilizing CW databases, designing appropriate CW types, and implementing strict technical management and supervision.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Norzila Mohd, Nazlina Haiza Mohd Yasin, Wan Hasnidah Wan Osman, Mohd Sobri Takriff
Summary: This study demonstrates that Chlamydomonas sp. is effective in removing nutrients from palm oil mill effluent and shows particular efficiency in the removal of ammonium and phosphate.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Mingzhen Zhang, Guijian Liu, Ruijia Liu, Jinzhao Xu, Wen Si, Yong Wei
Summary: Tieguanyin tea stem was used to synthesize modified biochar for the adsorption of copper and zinc. Among the modified biochar, Fe-BCs had the highest adsorption capacity, with Fe-BC650 being the best adsorbent. It reached adsorption equilibrium in 1 minute and had a maximum adsorption capacity of 303.5996 mg/g for Cu (II) and 254.0711 mg/g for Zn (II) in single-metal solutions. However, there were antagonistic impacts between Cu2+ and Zn2+.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Lingling Zhao, Qiaoshu Zhou, Yun Yang, Yuan Zhang, Yewei Qiu, Yanjun Chen, Xian Jin, Xiangjun Yang, Shixiong Wang
Summary: This research presents a method for selectively recovering gold from e-waste water using metal sulfides microspheres prepared by hydrothermal technique. The results show that the assistance of visible light significantly improves the gold adsorption performance of metal sulfides. The metal sulfides exhibit excellent gold adsorption properties, high selectivity, ultra-high adsorption capacity, and good recyclability.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Laishram Saya, W. Rameshwor Singh, Sunita Hooda
Summary: Organic-inorganic nanoblends, such as polysaccharide-blended-inorganic ones, have versatile applications and have gained significant research attention. In this study, a magnetic guar gum/graphene oxide nanocomposite blended with CuO was successfully prepared and investigated for its adsorption capacity for ciprofloxacin removal. The results showed that the nanocomposite exhibited excellent adsorption capacity and the adsorption process was spontaneous.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Umit Ecer, Sakir Yilmaz
Summary: A novel and effective catalyst Co@MIL-68(Fe)@Fe3O4@CM-BC was synthesized and used for the catalytic reduction of crystal violet in aqueous environments. The catalyst showed high efficiency in degrading crystal violet under specific conditions, and exhibited good regeneration performance.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Chi Zhang, Miao Zhang, Haohan Yang, Wei Cai, Jun Wu
Summary: Enhancing the bioaugmentation of common nitrifiers in the partial nitrification/anammox process can decrease the activity of nitrite oxidizing bacteria and increase the activity of anammox bacteria, leading to improved total nitrogen removal efficiency.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Runzhang Zuo, Dajun Ren, Yangfan Deng, Canhui Song, Yubin Yu, Xiejuan Lu, Feixiang Zan, Xiaohui Wu
Summary: This study found that fine bubble aeration in membrane bioreactors (MBR) can better control membrane fouling and reduce energy consumption. However, compared to fine bubble aeration, coarse bubble aeration released more proteins and polysaccharides, resulting in a decrease in functional bacteria and enzymes involved in nitrogen and phosphorus pathways.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Ch Tahir Mehmood, Jiekai Dai, Hanjun Zhao, Ziyi Zhong
Summary: Wirelessly powered photocatalyst-coated spheres (WPS) have been developed and demonstrated for various applications, including photodegradation and fouling control. These WPS are cost-effective, easy to fabricate, and have excellent visible light sources, making them suitable as carriers for photocatalysts.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Yifan Wang, Xiaoxuan Kang, Yuting Li, Ruyi Li, Chang Wu, Luyao Wang, Chongqing Wang, Tao Yang, Ming Ge, Zhangxing He
Summary: Cobalt/carbon nanofibers (Co/CNF) were prepared and exhibited excellent catalytic activity in the degradation of tetracycline by activating peroxodisulfate (PDS). The effects of process parameters on tetracycline removal were studied, and the reaction mechanism was confirmed through experiments.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Ting Wei, Yaqian Zhao, Jia Guo, Bin Ji, Alvaro Pun Garcia, Abraham Esteve Nunez
Summary: This study developed a novel lightweight substrate (Al-NLS) composed of aluminum sludge and polyurethane, and investigated its effectiveness in constructed wetlands (CWs). Results showed that Al-NLS had favorable adsorption capacities for phosphorus and removal efficiencies for pollutants in real domestic wastewater. It also positively influenced the microbial community. Therefore, Al-NLS can be considered as a new alternative substrate in CWs technology.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Engineering, Environmental
Dabojani Das, Achinta Bordoloi, Heyang Yuan, Daniel J. Caldwell, Rominder P. S. Suri
Summary: This study evaluates the degradation kinetics of antibiotic resistance genes and mobile genetic elements in water matrices by ozone treatment. The results show that extracellular antibiotic resistance genes can be effectively removed, while intracellular genes are more resistant to degradation. The impact of wastewater matrix on gene degradation is minimal.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)