Article
Environmental Sciences
Hong Liu, Zaihui Huang, Chunguang Liu
Summary: The study developed a HRP-Fenton-like system for efficient degradation of sulfamethazine, with the addition of trace Fe2+ improving the degradation rate. HRP dominated the removal of SMR in the system. Among the ions affecting SMR degradation, Cl-, HCO3-, and NO3- showed a negative effect, while SO42- had a positive effect.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Food Science & Technology
Tianying Lu, Yuqian Guo, Zheling Zeng, Kesheng Wu, Xiaoyang Li, Yonghua Xiong
Summary: Contamination of peanut oil by Aflatoxin B1 (AFB1) is a serious food safety issue, but the details of its transformation in the edible oil refining process have not been fully reported. This study found that the degumming and deacidification stages are crucial for AFB1 removal, with a significant amount being transferred to colloidal impurities and soap stock, and a majority (87.91%) being transformed into other compounds.
Article
Engineering, Environmental
Rui Li, David Speed, Dinusha Siriwardena, Sujan Fernando, Selma Mededovic Thagard, Thomas M. Holsen
Summary: This study compared the effectiveness of three advanced oxidation processes, Fenton, UV/Fenton, and UV/H2O2, for treating wastewater containing various components commonly found in semiconductor wastewater. The UV/Fenton process at an initial pH of 8.3 showed the best overall removal rate due to synergistic effects of various factors. The presence of co-contaminants in actual semiconductor industrial wastewater impacted the removal rates of pyrazole and DGA differently for each AOP.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Bin Liu, Jun Yin, Jun Wu, Xiaoxiang Cheng, Kaihan Yang, Guangchao Li, Zhou Shi
Summary: The study found that UV/ClO2 pretreatment can effectively alleviate ultrafiltration membrane fouling, improve membrane hydrophilicity and interfacial free energy. It can also remove organic pollutants and fluorescent components, but may lead to the deterioration of dissolved organic carbon in the permeate.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Environmental Sciences
Mengge Fan, Xin Yang, Qingqing Kong, Yu Lei, Xinran Zhang, Ehsan Aghdam, Ran Yin, Chii Shang
Summary: The study demonstrated the effectiveness of the sequential ClO2-UV/chlorine process in removing micropollutants and controlling the formation of disinfection byproducts(DBPs). ClO2 pretreatment significantly reduced the formation of DBPs during the UV/chlorine process.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Jiadong Peng, Ran Yin, Xin Yang, Chii Shang
Summary: This study presents a novel UVA/chlorine dioxide (ClO2) advanced oxidation process (AOP), which generates a spectrum of reactive species through the photolysis of ClO2 using UVA-LEDs. The UVA(365)/ClO2 AOP exhibits lower pH-dependency, lower energy input requirement, and lower formation of byproducts compared to the well-known UVC254/chlorine AOP.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Applied
Xu Zhao, Xiao-Ming He, Fen Liu, Chang-Qing Duan, Fei He
Summary: This study systematically elucidated the mechanism of intramolecular copigmentation in malvidin-3-O-(6-O-p-coumaryl)-glucoside, a type of acylated anthocyanin. The results showed that intramolecular copigmentation stabilized the anthocyanin and led to color changes. The conformational features and optical properties were analyzed using experimental and theoretical approaches.
Article
Environmental Sciences
Yuxi Chai, Xiaofei Chen, Yihuan Wang, Xiaoyan Guo, Rongyue Zhang, Huangzhao Wei, Haibo Jin, Zhiwei Li, Lei Ma
Summary: This study compared the resource consumption, energy consumption, pollutant discharge, and cost of four advanced oxidation processes (Fenton, UV-Fenton, electro catalytic oxidation with Ti/TiO2-RuO2-IrO2 as electrode, and electro catalytic oxidation with boron-doped diamond as electrode) for treating unsymmetrical dimethylhydrazine (UDMH) wastewater. It was found that UV-Fenton had the lowest life cycle cost (US$1.53/m3) and was the best choice based on environmental and economic analysis. Sensitivity analysis showed that reducing chemical reagents and electricity consumption, and shifting to renewable energy can significantly reduce the environmental and economic impact. However, if only the removal rate is considered regardless of cost, electro catalytic oxidation with boron-doped diamond as electrode achieved a TOC removal rate of 97.75% but had the highest life cycle cost (US$26.20/m3).
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Xuecong Qian, Shilong Wang, Haijun Cheng, Ziye Jia, Da Wang, Yandong Xie, Jinhao Duan, Yu Tian, Jun Ma
Summary: This study investigated the oxidation efficiency of Mn(II) by the UV-enhanced chlorination system and identified the responsible reactive radical species. It was found that the UV/chlorine system greatly enhanced the oxidation kinetics of Mn(II), with ClO· and ClO2 identified as the dominant reactive species.
Article
Engineering, Environmental
Diya Wen, Bing Chen, Bo Liu
Summary: The UV and US enhanced ozonation method showed positive effects on the removal of atrazine and COD in atrazine manufacturing wastewater, particularly within a limited energy range. The interaction of O-3 with UV promoted the degradation of both COD and atrazine, while its interaction with US inhibited COD removal but promoted atrazine removal. The most optimal removal rate of atrazine was achieved under specific conditions, and the most energy-efficient configuration was identified for advanced oxidation processes.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Environmental Sciences
Yongwei Jiang, Chao Xing, Yue Chen, Jing Shi, Sheng Wang
Summary: This study established an efficient strategy, the BFO-based UV-heterogeneous Fenton-like system, to eliminate TC pollution. The integrated photocatalytic oxidation system with the heterogeneous Fenton-like system demonstrated outstanding performance in TC disposal, with TC and TOC removal efficiencies reaching 100% and 74.92%, respectively. The promising TC disposal efficiency achieved by the integration between the BFO-based photocatalytic and heterogeneous Fenton-like system sheds light on applying BFO to control water pollution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Applied
Jingjing Dong, Sidong Li, Jie Zhang, Ake Liu, Jiahong Ren
Summary: The thermal degradation behavior of cyanidin-3-O-gluoside was studied in nitrogen and air, showing that it can be divided into three steps with the release of toxic phenols and furans. The activation energy and decomposition products were also analyzed in both environments.
Article
Engineering, Environmental
J. Meijide, G. Lama, M. Pazos, M. A. Sanroman, P. S. M. Dunlop
Summary: Contaminants of emerging concern, including pharmaceuticals, are detected at low concentrations in surface waters, posing potential risks to aquatic life and the food chain. This review focuses on the removal of active pharmaceutical ingredients using ultraviolet processes, such as photo-Fenton, photocatalysis, and photoelectrocatalysis. However, there is limited research on scaling up the systems and testing their effectiveness in real water matrices.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Yunyi Li, Ying Yang, Jiamin Lei, Wen Liu, Meiping Tong, Jialiang Liang
Summary: The pathways of CBZ degradation in various advanced oxidation processes show high similarity, indicating that computational chemistry is a useful tool for pathway speculation. The molecular configuration of degradation intermediates plays a very important role in the degradation pathway.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biochemistry & Molecular Biology
Laura Giraldo Isaza, Gerard Mortha, Nathalie Marlin, Florian Molton, Carole Duboc
Summary: In this study, the reaction mechanism of ClO2-mediated TEMPO oxidation was investigated using EPR spectroscopy and UV-Vis spectroscopy. The reversibility between TEMPO and its oxidation product, TEMPO+, was observed in the absence of cellulosic substrate, with pH and reagent molar ratios affecting the reaction. The involvement of HOCl and Cl- as byproducts in the oxidation mechanism was also confirmed.
Article
Environmental Sciences
Anja Stajnko, Agneta Annika Runkel, Tina Kosjek, Janja Snoj Tratnik, Darja Mazej, Ingrid Falnoga, Milena Horvat
Summary: The study found that CYP2C9*2 and *3 SNPs have an impact on the metabolism of DEHP, while CYP2C19*17 and UGT1A7*3 SNPs may serve as potential biomarkers for susceptibility or resilience to exposure to phthalates and DINCH.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Environmental Sciences
A. Pistocchi, H. R. Andersen, G. Bertanza, A. Brander, J. M. Choubert, M. Cimbritz, J. E. Drewes, C. Koehler, J. krampe, M. Launay, P. H. Nielsen, N. Obermaier, S. Stanevm, D. Thornberg
Summary: In this contribution, scenarios of advanced wastewater treatment for the removal of micropollutants are analyzed. The necessity of properly implemented tertiary treatment and the critical aspects, advantages, and disadvantages of advanced treatment options are reviewed. The costs of implementing advanced treatment and upgrading plants from secondary to tertiary treatment are quantified, along with greenhouse gas emissions. By comparing costs and effectiveness, a compromise scenario is proposed where advanced treatment is required for plants of certain population equivalents and dilution ratios.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Tessa Schillemans, Nina Iszatt, Sylvie Remy, Greet Schoeters, Mariana F. Fernandez, Shereen Cynthia D'Cruz, Anteneh Desalegn, Line S. Haug, Sanna Lignell, Anna Karin Lindroos, Lucia Fabelova, Lubica Palkovicova Murinova, Tina Kosjek, Ziga Tkalec, Catherine Gabriel, Denis Sarigiannis, Susana Pedraza-Diaz, Marta Esteban-Lopez, Argelia Castano, Loic Rambaud, Margaux Riou, Sara Pauwels, Nik Vanlarebeke, Marike Kolossa-Gehring, Nina Vogel, Maria Uhl, Eva Govarts, Agneta Akesson
Summary: We investigated the association between PFAS and BMI in European teenagers through the Human Biomonitoring for Europe initiative. Our results suggested a tendency for negative associations between low PFAS concentrations and lower BMI in teenagers.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Guan Wang, Kai Tang, Adam C. Hambly, Yifeng Zhang, Henrik Rasmus Andersen
Summary: This paper presents a new method for Fenton treatment of complex wastewater using a novel bioelectrode system. The new system eliminates the need for additional dosing of Fe(II) and H2O2, prevents iron-sludge accumulation, and reduces consumption of pH regulators. The experimental results demonstrate that the method is efficient in removing dissolved organic carbon and specific recalcitrant organics.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Public, Environmental & Occupational Health
D. Richterova, E. Govarts, L. Fabelova, K. Rausova, L. Rodriguez Martin, L. Gilles, S. Remy, A. Colles, L. Rambaud, M. Riou, C. Gabriel, D. Sarigiannis, S. Pedraza-Diaz, J. J. Ramos, T. Kosjek, J. Snoj Tratnik, S. Lignell, I Gyllenhammar, C. Thomsen, L. S. Haug, M. Kolossa-Gehring, N. Vogel, C. Franken, N. Vanlarebeke, L. Bruckers, L. Stewart, O. Sepai, G. Schoeters, M. Uhl, A. Castano, M. Esteban Lopez, T. Goeen, L' Palkovicova Murinova
Summary: This study describes the current levels of PFAS in European teenagers and investigates the determinants of serum/plasma concentrations in this age group. The results indicate that sex, educational level, and food consumption frequencies are associated with PFAS concentrations. These findings can be helpful for targeted monitoring of PFAS in food.
INTERNATIONAL JOURNAL OF HYGIENE AND ENVIRONMENTAL HEALTH
(2023)
Article
Green & Sustainable Science & Technology
Guan Wang, Kai Tang, Yuechao Yao, Wenjing (Angela) Zhang, Henrik Rasmus Andersen, Yifeng Zhang
Summary: In this study, the introduction of granular sludge into the biocathode of a microbial electrolysis cell (MEC) improved the regeneration rate of Fe(II) from actual ferric sludge at near neutral pH. The wastewater constituents served as the reducing power to regenerate Fe(II). A high regeneration rate of 175 mg/L dissolved Fe(II) was achieved in the flow-through biocathode.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Chemical
Guochen Wang, Adam C. Hambly, Dan Zhao, Guan Wang, Kai Tang, Henrik R. Andersen
Summary: The present study demonstrated the efficient removal of micropollutants using suspended biogenic manganese oxides (BioMnOx) as catalysts to activate peroxymonosulfate (PMS). High removal efficiencies (>80%) were achieved for selected micropollutants, particularly refractory ones such as carbamazepine (98%), diclofenac (100%), and metoprolol (81%). An inhibition effect of HCO3- on PMS activation was observed, while Cl- showed negligible effect. Radical species such as sulfate radical, hydrogen radical, and singlet oxygen were involved in the PMS activation process, with compound-specific ROS responsible for micropollutant removal. A novel BioMnOx/PMS system was established using BioMnOx-coated carriers obtained from a previously engineered moving bed biofilm reactor (MBBR). This system effectively removed micropollutants such as diclofenac (91%) and sulfamethoxazole (98%), with minimal toxic effects determined by Vibrio fisheri.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Jibo Qin, Yibo Dou, Jianchi Zhou, Victor M. Candelario, Henrik Rasmus Andersen, Claus Helix-Nielsen, Wenjing Zhang
Summary: The conversion of waste plastic into high-value-added chemicals is considered a promising approach to address global plastic pollution and promote the circular economy. This study developed a partial calcination strategy to create a zinc oxide/UiO66-NH2 heterojunction for photocatalytic valorization of plastic. The obtained heterojunction exhibited high activity for converting polylactic acid and polyvinyl chloride into acetic acid, along with hydrogen production. This work provides insights into the process of photocatalytic valorization of plastic and offers a feasible strategy for designing heterojunction photocatalysts.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Biochemical Research Methods
Helena Plesnik, Masa Bosnjak, Maja Cemazar, Gregor Sersa, Tina Kosjek
Summary: The analysis of highly polar agents in cancer treatment is challenging due to their physicochemical properties. In this study, we focused on the analysis of polar cytotoxic bleomycin, which is a mixture of complexing congeners with high molecular mass. We optimized and validated an analytical method for its determination in pharmaceutical and biological specimens.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Environmental Sciences
Agneta A. Runkel, Anja Stajnko, Janja Snoj Tratnik, Darja Mazej, Milena Horvat, Petra Pribylova, Tina Kosjek
Summary: A pilot study was conducted to determine serum concentrations of PFAS in children from agricultural areas in northeastern Slovenia. PFOS, PFOA, PFHxS, and PFNA were the most frequently detected compounds. The study provides a good foundation for further nationwide investigation of PFAS exposure.
Article
Environmental Sciences
Taja Verovsek, Ariana Sustari, Maria Laimou-Geraniou, Ivona Krizman-Matasic, Helena Prosen, Tina Elersek, Vlasta Kramaric Zidar, Vesna Mislej, Bostjan Mismas, Marjeta Strazar, Marjetka Levstek, Bernardka Cimrmancic, Simon Luksic, Natasa Uranjek, Tjasa Kozlovic-Bobic, Tina Kosjek, David Kocman, David Heath, Ester Heath
Summary: Continuous consumption and incomplete removal during wastewater treatment lead to constant introduction of psychoactive substances into the aquatic environment, potentially affecting non-target organisms. This study determined drug residues of psychoactive substances in wastewater and receiving rivers of six Slovene municipal wastewater treatment plants. The removal efficiencies varied among different treatment technologies, with higher removal rates for some substances. Although there were seasonal variations, no general pattern could be observed. The environmental risk assessment revealed that certain substances pose a risk to aquatic organisms, supporting the need for regular monitoring and regulatory actions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Microbiology
Qingxian Su, Dennis A. Bazylinski, Marlene Mark Jensen
Summary: Magnetotactic bacteria (MTB) are microorganisms that inhabit aquatic environments and are important in biogeochemical cycling. In this study, the influence of oxygen availability on intracellular storage of carbon and phosphorus in MTB was investigated. Oxygen had a strong effect on the storage of polyhydroxyalkanoate (PHA) and polyphosphate (polyP) granules in MTB cells, with significant changes in granule abundance and composition observed under different oxygen conditions.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Multidisciplinary Sciences
Milka Ljoncheva, Sintija Stevanoska, Tina Kosjek, Saso Dzeroski
Summary: In the field of environment and health studies, there is a lack of resources for the identification of emerging contaminants. To address this issue, the authors generated 12 datasets of GC-EI-MS spectra and made them publicly available. These datasets can support the development of machine learning-assisted compound identification in GC-MS laboratories.
Article
Engineering, Environmental
Anders T. Mortensen, Estelle M. Goonesekera, Arnaud Dechesne, Tal Elad, Kai Tang, Henrik R. Andersen, Barth F. Smets, Borja Valverde-Perez
Summary: Pharmaceuticals and other organic micropollutants (OMPs) in wastewater are a growing concern due to their impact on the environment and human health. Conventional biological treatments have limited success in removing OMPs, but methanotrophic bacteria can degrade these pollutants. A novel bubble-free hybrid membrane biofilm bioreactor (hMBfR) was used to cultivate methanotrophic bacteria at varying CH4 loading rates, resulting in high biomass productivity and CH4 loading. The hMBfR also effectively removed OMPs, recovered nutrients, and promoted the growth of beneficial microorganisms, making it a promising technology for safer water reuse and resource recovery.
Article
Chemistry, Physical
Jibo Qin, Yibo Dou, Jianchi Zhou, Dan Zhao, Tobias Orlander, Henrik Rasmus Andersen, Claus Helix-Nielsen, Wenjing Zhang
Summary: This study presents a method of combining carbon nanodots with metal-organic frameworks for the photocatalytic upcycling of polyvinyl chloride (PVC) waste. The fabricated CDs/Zr-MOF catalyst exhibits high activity and yield in PVC conversion, while providing insights into the key roles in the reaction mechanism. This work offers a new approach for fabricating nanoparticle-embedded MOF-based photocatalysts and is of great significance for the chemical upcycling of plastics.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
