Article
Environmental Sciences
Han Ding, Jiangyong Hu
Summary: This study investigated the formation of bromate and brominated oxidation byproducts (Br-OBPs) by the UVA/TiO2/peroxydisulfate (PDS) process in the presence of bromide. It was found that the PDS concentration and TiO2 dosage were positively correlated with bromate formation, while the conversion of bromide to bromate was inhibited by the initial concentration of bromide itself. Extreme pH, humic acid, or ammonium completely inhibited the formation of bromate, while chloride, sulfate, and bicarbonate could suppress bromate formation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Physical
Emmanuel M. de la Fourniere, Jorge M. Meichtry, Eduardo A. Gautier, Ana G. Leyva, Marta Litter
Summary: The degradation mechanism of ethylmercury chloride under UV/TiO2 photocatalysis was investigated, revealing the products and degradation pathways, and proposing a mechanism involving oxidative and reductive one-electron transfer steps.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Chemistry, Physical
Alejandra Romero-Moran, Jose L. Sanchez-Salas, Joel Molina-Reyes
Summary: The study established the influence of the crystalline phase and agglomeration degree of TiO2 nanoparticles on photocatalytic hydroxyl radical formation and bacterial inactivation in TiO2/SiO2 composite coatings. A relationship between hydroxyl radicals' formation and charge carrier transfer mechanism between defect levels in SiO2 and TiO2 embedded nanoparticles was established through a simple spectroscopic method. This correlation complements the lack of mechanisms behind the photocatalytic activity in TiO2/SiO2 composites.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Patrick Enders, Katrina Prane, Eric Schoenke, Tobias Taeufer, Dirk Michalik, Jabor Rabeah, Robert Francke
Summary: A photochemical rearrangement of O-aryl thiocarbamates to S-aryl compounds via heterogeneous electron transfer with photo-excited titanium dioxide is described. This rearrangement is crucial in the conversion of phenols to thiophenols. The reaction can be conducted at room temperature under aerobic conditions using violet LEDs, resulting in yields up to 99% for 24 electron-rich substrates. A plausible mechanism is proposed based on substrate scope, spectroscopic studies, and control experiments.
Article
Environmental Sciences
Luis A. Gonzalez-Burciaga, Cynthia M. Nunez-Nunez, Jose B. Proal-Najera
Summary: The study summarized the method of degrading cytostatic pollutants through TiO2 heterogeneous photocatalysis and its application scope, as well as outlined and discussed the removal of cytostatic drugs in wastewater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Giulio Farinelli, Marco Coha, Davide Vione, Marco Minella, Alberto Tiraferri
Summary: Peracetic acid is widely used as a disinfectant in water treatment due to its effectiveness and ease of use. However, its chemical behavior is still debated. This study found that peracetic acid itself can contribute to the formation of potentially carcinogenic compounds, in addition to its ability to form halogenated byproducts in the presence of organic matter and halides.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Mairis Iesalnieks, Raivis Eglitis, Talis Juhna, Krisjanis Smits, Andris Sutka
Summary: This study successfully prepared a transparent titanium dioxide coating on plastic substrates and demonstrated its high performance in photocatalytic degradation of organic pollutants. The coating can be applied to polymer substrates and exhibits good stability.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Environmental Sciences
Barbara Maria Borges Ribeiro, Renato Carajelescov Nonato, Tania Miyoko Fujimoto, Bianca Gvozdenovic Medina Bricio, Ursula Luana Rochetto Doubek, Edson Tomaz
Summary: This study focused on achieving high toluene degradation using heterogeneous photocatalysis in the presence of ozone, and found that ozone concentration influenced VOC degradation. It was observed that toluene degradation reached a plateau over the reactor length, indicating oversized reactor in some cases, while ozone concentration and toluene reaction rate decreased over the reactor length.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Min Huang, Shuyi Zhang, Bo Wu, Xing Yu, Yongping Gan, Tiejun Lin, Fei Yu, Yuhan Sun, Liangshu Zhong
Summary: A tunable band structure W-doped TiO2 photocatalyst was designed for the photocatalytic oxidation of methane to C-1 oxygenates using O-2 at low temperature. The W-doping improved the photocatalytic performance, achieving a liquid oxygenates productivity of 12.2 mmol g(-1) and a selectivity of 99.4%. Additionally, the selectivity of COx was effectively decreased from 21.2% to 0.6%. W-doping not only enhanced light absorption but also promoted the separation of photo-generated carriers, improving methane conversion.
Review
Environmental Sciences
S. Akash, Baskaran Sivaprakash, Natarajan Rajamohan, C. Muruga Pandiyan, Dai-Viet N. Vo
Summary: The excessive and unorganised utilisation of pesticides have negative impacts on soil and water. Photocatalytic method using nanomaterials shows potential as an alternative for the removal of pesticide pollutants. Specially synthesised nanoparticles have been found to be effective in the photocatalytic treatment of pesticides.
Article
Biotechnology & Applied Microbiology
Claudia Palacio, Alejandro Alvarez, Andres F. Mejia-Roldan, Jeaneth P. Urquijo, Jhoman A. Arias, Roger A. Cardona, Leidy C. Velez-Monsalve, Juliana Mejia-Sepulveda, Julio C. Saldarriaga, Mauricio A. Correa, Fabio Vargas
Summary: The study synthesized titanium dioxide powders through the sol-gel method using tetraisopropoxide with and without organic acids. Their photocatalytic activity was determined by colorimetric method and NO abatement test, showing that all samples were photoactive according to the criteria and the use of different organic acids did not affect their photocatalytic performance.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Elena R. Lopat'eva, Igor B. Krylov, Oleg O. Segida, Valentina M. Merkulova, Alexey I. Ilovaisky, Alexander O. Terent'ev
Summary: In this study, a hybrid photocatalytic system involving both TiO2 and NHPI was proposed for the cross-dehydrogenative C-C coupling. Each of the catalysts was ineffective when used separately under visible light in this transformation. The high catalytic efficiency was attributed to the interaction of NHPI with the TiO2 surface and the generation of PINO radicals upon visible light irradiation.
Article
Biochemistry & Molecular Biology
Paulina Rokicka-Konieczna, Agata Markowska-Szczupak, Ewelina Kusiak-Nejman, Antoni W. Morawski
Summary: This study presents the characteristics of saccharose-modified TiO2 photocatalysts obtained through a low-temperature hydrothermal method. The influence of these photocatalysts on the survivability and enzyme activity of Escherichia coli and Staphylococcus epidermidis under UV-A and artificial solar light was examined. The TiO2-1%-S-100 photocatalysts were capable of achieving complete inactivation of the bacteria under artificial solar light irradiation in less than 1 hour. The study also discusses the impacts of sugars on the photocatalytic activity and disinfection performance.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Materials Science, Coatings & Films
M. Coto, S. C. Troughton, P. Knight, R. Joshi, R. Francis, R. Kumar, T. W. Clyne
Summary: UV treatments are commonly used for pollutant removal in industrial water. Introducing a suitable photocatalyst can enhance energy efficiency by producing reactive oxygen species to degrade pollutants. TiO2 is a common photocatalyst for UV illumination, often created through Plasma Electrolytic Oxidation (PEO) of titanium substrates. High surface roughness and area on PEO samples enhance photocatalytic activity by disrupting fluid flow and increasing interaction between pollutants and the catalytic surface.
SURFACE & COATINGS TECHNOLOGY
(2021)
Review
Chemistry, Analytical
Siti nor Hidayah Arifin, Radin Mohamed, Adel Al-Gheethi, Chin Wei Lai, G. Yashni
Summary: This article reviews the potential of using TiO2 nanotubes for photocatalytic degradation of TCC and TCS in greywater. The results show that TiO2 nanotubes have high efficiency in degrading TCC and TCS, with removal rates ranging from 33% to 99% for TCC and 1.73% to 90% for TCS. Moreover, photocatalytic degradation of TCC and TCS has led to the production of nonhazardous photoproducts.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Green & Sustainable Science & Technology
Marcel Soulier, Matthias Pfaff, Daniel Goldmann, Rainer Walz, Yong Geng, Ling Zhang, Luis A. Tercero Espinoza
JOURNAL OF CLEANER PRODUCTION
(2018)
Article
Engineering, Environmental
Marcel Soulier, Simon Gloeser-Chahoud, Daniel Goldmann, Luis A. Tercero Espinoza
RESOURCES CONSERVATION AND RECYCLING
(2018)
Article
Engineering, Environmental
Luis A. Tercero Espinoza, Marcel Soulier
RESOURCES CONSERVATION AND RECYCLING
(2018)
Article
Engineering, Chemical
Antonia Loibl, Frank Marscheider-Weidemann, Katrin Ostertag, Sonja Rosenberg, Luis Tercero Espinoza, Matthias Pfaff, Christian Sartorius
CHEMIE INGENIEUR TECHNIK
(2020)
Review
Engineering, Environmental
Dieuwertje Schrijvers, Alessandra Hool, Gian Andrea Blengini, Wei-Qiang Chen, Jo Dewulf, Roderick Eggert, Layla van Ellen, Roland Gauss, James Goddin, Komal Habib, Christian Hagelueken, Atsufumi Hirohata, Margarethe Hofmann-Amtenbrink, Jan Kosmol, Maite Le Gleuher, Milan Grohol, Anthony Ku, Min-Ha Lee, Gang Liu, Keisuke Nansai, Philip Nuss, David Peck, Armin Reller, Guido Sonnemann, Luis Tercero, Andrea Thorenz, Patrick A. Waeger
RESOURCES CONSERVATION AND RECYCLING
(2020)
Editorial Material
Engineering, Environmental
Luis Tercero Espinoza, Dieuwertje Schrijvers, Wei-Qiang Chen, Jo Dewulf, Roderick Eggert, James Goddin, Komal Habib, Christian Hagelueken, Alan J. Hurd, Rene Kleijn, Anthony Y. Ku, Min-Ha Lee, Keisuke Nansai, Philip Nuss, David Peck, Evi Petavratzi, Guido Sonnemann, Ester van der Voet, Patrick A. Wager, Steven B. Young, Alessandra Hool
RESOURCES CONSERVATION AND RECYCLING
(2020)
Article
Engineering, Environmental
Di Dong, Luis A. Tercero Espinoza, Antonia Loibl, Matthias Pfaff, Arnold Tukker, Ester Van der Voet
RESOURCES CONSERVATION AND RECYCLING
(2020)
Letter
Engineering, Environmental
Luis Tercero Espinoza, Alessandra Hool, Patrick Waeger, Christian Hageluken, Anthony Ku, Roderick Eggert, Dieuwertje Schrijvers
RESOURCES CONSERVATION AND RECYCLING
(2021)
Article
Engineering, Environmental
Antonia Loibl, Luis A. Tercero Espinoza
Summary: This paper examines the challenges and technological opportunities in the copper recycling chain, highlighting the increasing importance of complex end-of-life (EoL) scrap and the potential of sensor-based technologies. Global copper flows analysis shows that source separation of EoL scrap is considered not viable, and there are limited examples of sensor technologies specific to copper recycling tasks.
RESOURCES CONSERVATION AND RECYCLING
(2021)
Article
Environmental Studies
Luis A. Tercero Espinoza
Summary: This paper examines the definitions of recycling indicators used in EU reporting, compares and contrasts them with definitions from the literature, and probes their fitness for use in European criticality studies and circularity reporting. It is shown that the end-of-life recycling input rate is not suitable for measuring progress in the circular economy due to its dependence on product lifetime and demand growth. The differences in definition of this indicator used in EU reporting vs. the literature can be misleading and hinder direct comparison with other regions.
Article
Economics
Alexander Cimprich, Steven B. Young, Dieuwertje Schrijvers, Anthony Y. Ku, Christian Hageluken, Patrice Christmann, Roderick Eggert, Komal Habib, Atsufumi Hirohata, Alan J. Hurd, Min-Ha Lee, David Peck, Evi Petavratzi, Luis A. Tercero Espinoza, Patrick Waeger, Alessandra Hool
Summary: This article explores examples of circularity strategies for critical raw materials in commercial settings and proposes a framework for evaluating these strategies at the company level. Through case studies, several observations are made regarding company circularity strategies for critical raw materials.
Article
Engineering, Environmental
L. Rostek, L. A. Tercero Espinoza, D. Goldmann, A. Loibl
Summary: Accurate and up-to-date accounting of material stocks and flows is crucial for Circular Economy discussions. The application of dynamic material flow analysis shows an increase in recycling rates from 2010 to 2019, but challenges remain in end-of-life waste collection and zinc losses in steel recycling.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Green & Sustainable Science & Technology
Sabine Langkau, Luis A. Tercero Espinoza
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2018)
Article
Economics
Luis A. Tercero Espinoza, Marcel Soulier
Article
Green & Sustainable Science & Technology
Simon Gloeser-Chahoud, Luis Tercero Espinoza, Rainer Walz, Martin Faulstich
Article
Engineering, Environmental
Rong-Gui Zhu, Chang-Gui Pan, Feng-Jiao Peng, Chao-Yang Zhou, Jun-Jie Hu, Kefu Yu
Summary: This comprehensive survey investigated the occurrence, bioaccumulation, and trophic magnification of parabens and their metabolite 4-HB in a marine food web. Results showed that parabens were the predominant pollutants in marine organisms, with significant bioaccumulation from sediments. The estimated trophic magnification factor indicated biomagnification for MeP and trophic dilution for 4-HB. Overall, the risks for humans consuming marine organisms were found to be low.
Article
Engineering, Environmental
Andres F. Torres-Franco, Deborah Leroy-Freitas, Cristina Martinez-Fraile, Elisa Rodriguez, Pedro A. Garcia-Encina, Raul Munoz
Summary: Anaerobic and microalgae-based technologies have emerged as sustainable alternatives for municipal wastewater treatment. However, the presence of viruses in the treated wastewater is a major concern for reuse applications. This study assessed the ability of these technologies to reduce viruses during secondary wastewater treatment. The results showed that all technologies were effective in reducing the concentration of viruses, with microalgae-based treatment exhibiting the highest potential for reducing the disinfection requirements of treated wastewater.
Article
Engineering, Environmental
Young Gwang Kim, Sae Yun Kwon, Spencer J. Washburn, Scott C. Brooks, Ji Won Yoon, Lucien Besnard
Summary: The study uses Hg isotope ratios to identify the sources and exposure pathways of mercury in bivalves, finding that dissolved Hg phases in the water column are the primary source and exposure pathway to bivalves. This provides new insights into using bivalves as bioindicators for sediment quality monitoring.
Article
Engineering, Environmental
Hui Geng, Ying Xu, Rui Liu, Dianhai Yang, Xiaohu Dai
Summary: This study investigates the effect of cation exchange resin (CER) on the sequential recovery of hydrogen and methane from anaerobic digestion (AD) and the corresponding mechanisms. The results show that CER can simultaneously enhance the production of hydrogen and methane by promoting the solubilisation, hydrolysis, and acidification of organic matter. Additionally, CER facilitates effective contact between bacteria and organic particulates and reduces the energy barrier for mass transfer during methane production. The study also reveals changes in the microbial community structure and metagenomics during the AD process.
Article
Engineering, Environmental
Xiaojing Lin, Zhan Jin, Shunfeng Jiang, Zhiquan Wang, Suqing Wu, Ke Bei, Min Zhao, Xiangyong Zheng
Summary: Dehumidification combined with addition of absorbent resin supplement (ARS) was used to achieve rapid evaporation of non-pretreated urine, resulting in high water evaporation efficiency and nutrient recovery.
Article
Engineering, Environmental
Yangli Che, Chaoran Lin, Shen Li, Jiao Liu, Longhai Zhu, Shilei Yu, Nan Wang, Haoshuai Li, Mutai Bao, Yang Zhou, Tonghao Si, Rui Bao
Summary: Hydrodynamic processes play a crucial role in the transmission of sediments, microbial assembly, and organic carbon redistribution in the ocean. Through experiments and analysis, we found that hydrodynamics shape the assembly of microbial communities and control the redistribution of different sourced organic carbon, thereby influencing microbial-mediated biogeochemical transformation.
Article
Engineering, Environmental
Chao Chen, Yu Yang, Nigel J. D. Graham, Zhenyu Li, Xingtao Yang, Zhining Wang, Nadia Farhat, Johannes S. Vrouwenvelder, Li -an Hou
Summary: The fouling of seawater reverse osmosis membranes is a persistent challenge in desalination. This study monitored the operational performance of a desalination plant for 7 years and the fouling development in different areas of membrane modules. The findings showed that operational performance declined over time and fouling mainly occurred at the feed side of the modules, with the highest microbial diversity. Keystone species like Chloroflexi and Planctomycetes played an important role in maintaining community structure and biofilm maturation. Polysaccharides, soluble microbial products, marine humic acid-like substances, and inorganic substances contributed to fouling. Overall, biofouling had a significant impact on membrane fouling after 7 years of operation.
Article
Engineering, Environmental
Dan Li, Jieyi Sun, Yibo Fu, Wentao Hong, Heli Wang, Qian Yang, Junhong Wu, Sen Yang, Jianhui Xu, Yunfei Zhang, Yirong Deng, Yin Zhong, Ping'an Peng
Summary: Sulfidation-oxidation treatment of magnetite (Fe3O4) enhances the production of dark center dot OH, which can efficiently degrade dissolved organic matter (DOM) and accelerate carbon cycling.
Article
Engineering, Environmental
Cheng Yu, Kaijun Wang, Kaiyuan Zhang, Ruiyang Liu, Pingping Zheng
Summary: This study implemented a microaerobic-aerobic configuration in a full-scale municipal wastewater treatment facility and investigated the effects on sludge characteristics, pollutant removal, microbial community, and granulation mechanisms. The results showed successful transition from flocculent-activated sludge to well-defined AGS after two months of operation. The primary pathways for pollutant removal were simultaneous nitrification, denitrification, and phosphorus removal. Moreover, the incorporation of internal separators induced shifts in the flow pattern, which promoted granulation.
Article
Engineering, Environmental
Zhe Zhang, Shaoyang Hu, Guangrong Sun, Wei Wang
Summary: Halogenated aromatic disinfection byproducts (DBPs), such as halogenated phenols, have garnered widespread attention due to their high toxicity and prevalence. This study reports on the analysis, occurrence, and cytotoxicity of a group of emerging halogenated aromatic DBPs, known as halogenated polyhydroxyphenols (HPPs), in drinking water.
Article
Engineering, Environmental
Shengyue Chen, Jinliang Huang, Peng Wang, Xi Tang, Zhenyu Zhang
Summary: Accurate prediction of river water quality is crucial for sustainable water management. This study introduces wavelet analysis and transfer learning techniques to assist LSTM modeling, proposing a newly coupled modeling approach that improves short-term prediction of river water quality.
Article
Engineering, Environmental
Bang Du, Xinmin Zhan, Piet N. L. Lens, Yifeng Zhang, Guangxue Wu
Summary: Efficient anaerobic digestion relies on the cooperation of different microorganisms with different metabolic pathways. This study investigated the effects of different operational modes and the addition of powdered activated carbon (PAC) on ethanol metabolic pathways. The results showed that the SBR mode and the presence of CO2 facilitated ethanol metabolism towards propionate production, while the CFR mode with extended solids retention time enriched Geobacter. Adjusting operational modes and PAC addition can modulate anaerobic ethanol metabolism and enrich Geobacter.
Article
Engineering, Environmental
Wanfa Wang, Si-Liang Li, Jun Zhong, Yuanbi Yi, Fujun Yue, Zenglei Han, Qixin Wu, Ding He, Cong-Qiang Liu
Summary: This study compares the carbon biogeochemical processes in karst and non-karst regions within large thermal stratified river-reservoir systems. The results demonstrate that karst reservoirs have a reduced potential for carbon emissions and highlight the importance of considering geologic settings to improve accuracy in regional and global CO2 emission estimates.
Article
Engineering, Environmental
Chunxia Jiang, Zelong Zhao, Dong Zhu, Xiong Pan, Yuyi Yang
Summary: This study analyzed the occurrence and distribution of antibiotic resistance genes (ARGs) in different environmental media of the Yangtze River using metagenomics. Core resistome dominated by multidrug resistance genes was found in all samples, while rare resistome dominated by various resistance genes was more prevalent in plasmids. Specific bacteria were identified as hosts for both core and rare resistomes, with high clinical concern ARGs found in the rare resistome. Particle-associated environment provided the most ideal conditions for resistome hosts. This study provided insights into the genetic locations of ARGs and the community assembly mechanisms of ARG hosts in freshwater environments.
Article
Engineering, Environmental
Yu Zhang, Yongtao He, Linchun Jia, Lei Xu, Zheng Wang, Yueling He, Ling Xiong, Xumeng Lin, Hong Chen, Gang Xue
Summary: By synergizing organic carbon source, thiosulfate, and zero-valent iron, efficient mixotrophic denitrification of oligotrophic secondary effluent can be achieved. Thiosulfate plays a vital role in promoting TN removal efficiency, while corrosion of Fe0 releases OH- to neutralize H+ from thiosulfate-driven denitrification, creating a suitable environment for denitrification. The coordination of thiosulfate and Fe0 maintains the dominance of Thiobacillus for denitrification.
