Review
Engineering, Environmental
Cheng Yu, Sewoon Kim, Min Jang, Chang Min Park, Yeomin Yoon
Summary: This review examines the removal technology of nanoparticles (NPs) in drinking water and wastewater treatment processes, discusses their occurrence and transport in different processes, and provides suggestions and predictions for future development.
ENVIRONMENTAL ENGINEERING RESEARCH
(2022)
Review
Engineering, Environmental
Yan Laam Cheng, Jong-Gook Kim, Hye-Bin Kim, Jeong Hwan Choi, Yiu Fai Tsang, Kitae Baek
Summary: Wastewater treatment plants are significant sources of microplastics, with high concentrations in influent but relatively high removal efficiencies. Disinfection shows potential for breaking down microplastics, while the role of drinking water purification facilities in microplastic removal remains inadequately understood.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Green & Sustainable Science & Technology
Aaron Albert Aryee, Runping Han, Lingbo Qu, Jiri Jaromir Klemes
Summary: The widespread use of amoxicillin for treating common diseases has raised concerns about its presence in sewage and its impact on the environment and human health. This review discusses the ways amoxicillin enters the environment and its potential effects. Detection methods and remediation techniques for its removal from wastewater are also discussed. Advanced oxidation processes and constructed wetlands have been found to be the most and least applied methods for remediation, respectively.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Wenting Wang, Sangmin Park, Byeong-gyu Choi, Jeong-Eun Oh
Summary: This study investigated the occurrence and removal of four benzotriazoles (BTRs) and five benzothiazoles (BTHs) in drinking water treatment plants (DWTPs) and bottled water. The average concentrations of BTRs and BTHs were highest in raw water, followed by treated water and bottled water. Different distribution patterns were observed with 1H-BTR being dominant in raw water and BTH being predominant in bottled water. BTRs were efficiently removed, especially during adsorption processes, while BTHs were not effectively removed in DWTPs.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Joan Dalmau-Soler, Ruben Ballesteros-Cano, Ma Rosa Boleda, Miquel Paraira, Nuria Ferrer, Silvia Lacorte
Summary: This study examined the presence of microplastics in the Llobregat river basin in Catalonia, Spain, and their removal efficiency in the drinking water treatment plant (DWTP). Sand filtration was identified as the key stage in microplastic removal, with ultrafiltration/reverse osmosis proving more effective for removal than ozonation/carbon filtration. Preliminary migration tests were also conducted to identify potential sources of microplastics in each treatment step.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Public, Environmental & Occupational Health
Yuan Chen, Junlin Wang, Peiwei Xu, Jie Xiang, Dandan Xu, Ping Cheng, Xiaofeng Wang, Lizhi Wu, Nianhua Zhang, Zhijian Chen
Summary: This study evaluated the contribution of wastewater treatment plants (WWTPs) to the presence of antidepressants in surface water and assessed their impact on drinking water. The results demonstrated that antidepressants, with venlafaxine being the most abundant compound, showed higher concentrations at the effluent outlets of WWTPs. However, these compounds were hardly removed by wastewater treatment processes.
FRONTIERS IN PUBLIC HEALTH
(2022)
Article
Environmental Sciences
Agata Witczak, Kamila Pokorska-Niewiada, Agnieszka Tomza-Marciniak, Grzegorz Witczak, Jacek Cybulski, Aleksandra Aftyka
Summary: The study aimed to examine the variation in selenium content in drinking water, raw water, and treated and raw wastewater in the city of Szczecin over a one-year period. The concentration of selenium was measured using the spectrofluorometric method with an emission wavelength of 518 nm and an excitation wavelength of 378 nm. The results showed that the amount of selenium in drinking water ranged from...
Article
Multidisciplinary Sciences
Paul Kiprono, Jackson Kiptoo, Eunice Nyawade, Elijah Ngumba
Summary: A silica-based defluoridation sorbent was developed from pumice rock obtained from the Paka volcano in Baringo County, Kenya. Silica particles were extracted from the pumice rock and then modified with iron to enhance their affinity for fluoride. The sorbent showed high efficiency in defluoridation of borehole water, reducing fluoride levels significantly.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Environmental
Chunmiao Wang, Daniel L. Gallagher, Andrea M. Dietrich, Ming Su, Qi Wang, Qingyuan Guo, Junzhi Zhang, Wei An, Jianwei Yu, Min Yang
Summary: A study in China tracked the occurrence of 95 odorants in raw and finished water from 98 drinking water treatment plants, identifying over 70 odorants with varied concentrations. Analysis revealed co-occurring classes of chemicals in raw water, major factors affecting the occurrence of certain odorants, and the effectiveness of ozonationbiological activated carbon treatment in odorant removal. The study provides valuable insights for odor control and water quality management in the drinking water industry.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Review
Chemistry, Multidisciplinary
Daniel Sol, Amanda Laca, Adriana Laca, Mario Diaz
Summary: The research indicates that the efficiency of removing MPs, particularly MPFs, in WWTPs and DWTPs exceeds 70%, yet there still remains a significant amount of microfibres present in treated water.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Multidisciplinary
Peng Cui, Bo Qin
Summary: This study investigated the effect of different variables on fluoride removal from wastewater from a nonferrous metallurgy plant. The results indicate that under the optimum conditions, the residual fluoride concentration was below 8 mg/l, meeting the industrial discharge standard of China. It is feasible to obtain high purity calcium fluoride through chemical analysis and XRF.
Review
Chemistry, Multidisciplinary
D. Akhil, Divya Lakshmi, P. Senthil Kumar, Dai-Viet N. Vo, A. Kartik
Summary: Water recycling and removal of antibiotic pollution are becoming increasingly important, with various techniques for purification being utilized, particularly recently developed methods showing high removal efficiency.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Environmental Sciences
Jue Wang, Ming Guo, Yonghong Luo, Dongwei Shao, Shengbo Ge, Liping Cai, Changlei Xia, Su Shiung Lam
Summary: The magnetic polyelectrolyte composite nanospheres SA@AM exhibit high adsorption capacity and regeneration performance for the removal of heavy metal pollutants, providing useful information for the production of eco-friendly magnetic nano scale adsorption materials for environmental remediation applications.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Review
Environmental Sciences
Ahmed Yusuf, Ahmed Sodiq, Adewale Giwa, Joyner Eke, Oluwadamilola Pikuda, Jamiu O. Eniola, Bilkis Ajiwokewu, Nonni Soraya Sambudi, Muhammad Roil Bilad
Summary: The impact of microplastics pollution in the environment is significant and it is crucial to control their proliferation; while some research studies have been published on monitoring and removing microplastics, there is a lack of explicit regulatory framework globally; proposing targeted regulatory frameworks for microplastics is necessary to reduce their spread.
ENVIRONMENTAL POLLUTION
(2022)
Article
Chemistry, Physical
Nayara Balaba, Dienifer F. L. Horsth, Jamille de S. Correa, Julia de O. Primo, Silvia Jaerger, Helton J. Alves, Carla Bittencourt, Fauze J. Anaissi
Summary: Three synthesis routes using different natural polysaccharides as fuels and complexing agents were described for obtaining MgO. XRD identified the formation of a monophasic periclase structure for the three samples. BET analysis showed a significant difference in textural properties, with the highest pore volume and surface area obtained for MgO-St. The synthesized magnesium oxides displayed the ability to reduce the amount of Cu2+ ions in wastewater.
Article
Environmental Sciences
Sivakumar Vigneshwaran, Palliyalil Sirajudheen, Valiya Peedikakkal Sajna, Chang Min Park, Sankaran Meenakshi
Summary: A hybrid porous nanocomposite CS-Fe@Cu-BTC was synthesized using the hydrothermal method, which exhibited excellent photocatalytic performance and mineralization efficiency. It also demonstrated good durability after multiple cycles.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Engineering, Environmental
Cheng Yu, Sewoon Kim, Min Jang, Chang Min Park, Yeomin Yoon
Summary: This review examines the removal technology of nanoparticles (NPs) in drinking water and wastewater treatment processes, discusses their occurrence and transport in different processes, and provides suggestions and predictions for future development.
ENVIRONMENTAL ENGINEERING RESEARCH
(2022)
Review
Environmental Sciences
Jiyong Heo, Namguk Her, Min Jang, Chang Min Park, Ahjeong Son, Jonghun Han, Yeomin Yoon
Summary: This comprehensive review summarizes the recent research on the photocatalytic and electrocatalytic reduction of CO2 using MXene-based nanomaterials. It covers various catalysts for photocatalytic CO2 reduction, electrocatalytic CO2 reduction, CO2 reduction with photothermal catalysis and hydrogenation, and the stability of MXene-based photoelectrocatalysts. The challenges in large-scale fabrication of MXene-based nanomaterials are also discussed, as well as the future research prospects.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Talal Alshehri, Jingjing Wang, Sheryl A. Singerling, Julien Gigault, Jackson P. Webster, Sandrine J. Matiasek, Charles N. Alpers, Mohammed Baalousha
Summary: This study investigated the concentrations and nature of incidental nanomaterials (INMs) in wildfire ashes collected after the 2020 fire season in northern California. The concentrations of metals and metalloids were higher in structural/vehicle-derived ashes compared to vegetation-derived ashes and soils. The study identified various carbonaceous INMs and metal-bearing INMs in the form of nanoparticles in the ashes, highlighting the importance of further research on their formation, transformation, reactivity, fate, and effects.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Lewis Kamande Njaramba, Minseok Kim, Yeonji Yea, Yeomin Yoon, Chang Min Park
Summary: In this study, a novel biopolymer-based aerogel composite was developed for efficient removal of non-steroidal anti-inflammatory drugs (NSAIDs). The composite aerogel exhibited superior adsorption performance and remained highly efficient after multiple uses. The study also revealed the adsorption mechanisms and proposed optimized experimental conditions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Engineering, Environmental
Seong-Nam Nam, Chang Min Park, Min Jang, Yi Huang, Am Jang, Ahjeong Son, Yeomin Yoon
Summary: Boron nitride (BN) has attracted significant interest in environmental applications due to its unique properties. BN-based membranes have been used in various liquid purification/separation applications, but further research is needed to fully understand the removal/separation mechanisms. This review provides an overview of different types of BN nanomaterials incorporated into RO, NF, and UF membranes and discusses various factors affecting the fabrication and separation performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Velusamy Maheskumar, Karunamoorthy Saravanakumar, Yeonji Yea, Yeomin Yoon, Chang Min Park
Summary: In this study, a nanocomposite catalyst of FeNi2S4 nanoparticles/CoFe nanowires supported on nickel foam was prepared and showed excellent electrocatalytic performance. The FeNi2S4/CoFe electrode exhibited small overpotentials for oxygen and hydrogen evolution reactions and improved charge transfer processes. Furthermore, it also showed promising potential for urea-assisted water electrolysis with lower energy consumption. These results highlight the applications of nanoparticle and nanowire composite catalysts in wastewater treatment and green energy production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Environmental
Soyoung Park, Sewoon Kim, Yeonji Yea, Karunamoorthy Saravanakumar, Eunji Lee, Yeomin Yoon, Chang Min Park
Summary: In this study, cobalt doped/ZnTiO3/Ti3C2Tx MXene material was synthesized and found to have excellent performance in the adsorption and photocatalytic degradation of tetracycline antibiotics. The material showed high adsorption capacity and degradation rate, suggesting its potential application in removing tetracycline antibiotics widely used in animal husbandry.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Md Mahmudun Nabi, Jingjing Wang, Mahdi Erfani, Erfan Goharian, Mohammed Baalousha
Summary: Urban runoff is a major source of pollutants, including nanoparticles, in surface waters. This study investigates the impact of urbanization on the concentrations of engineered TiO2 particles in urban surface waters. The results show that urban runoff contributes to high concentrations of TiO2 particles, posing potential risks to aquatic organisms during rainfall events.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Engineering, Environmental
Taeyeon Kim, Keunyoung Yun, Nahyun Kim, Byungjun Cha, Jonghun Han, Lewis Kamande Njaramba, S. SD. Elanchezhiyan, Chang Min Park
Summary: Considerable amounts of phenols and their derivatives are present in water bodies, posing a threat to the environment due to their resistance to decomposition and high toxicity. This study focuses on the development of a novel aluminum-based metal-organic framework aerogel composite (GMA-1.0) as an effective adsorbent for the removal of phenolic compounds from aqueous environments. The results show that GMA-1.0 exhibits excellent adsorption capacity, selectivity, and performance, making it a promising material for phenolic waste remediation.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Chemistry, Physical
Velusamy Maheskumar, Karunamoorthy Saravanakumar, Jagan Govindan, Chang Min Park
Summary: The design and implementation of a novel heterostructure interface of La2Ni0.5Co0.5MnO6 nanoparticles and MoO3 nanobelt array-supported amorphous polyaniline (PANI; MoO3/P) have been developed for efficient oxygen evolution reaction (OER) and urea electrooxidation reaction (UOR). The optimized La2Ni0.5Co0.5MnO6@MoO3/P (LMP-30) showed excellent electrocatalytic performance with low overpotentials of 300 mV at 10 mA cm-2 (vs RHE) for OER and 0.48 V at 50 mA cm-2 (vs Hg/HgO) for UOR, as well as enhanced stability after 12-hour testing. This improved performance is attributed to the distinctive hierarchical nanostructure, offering synergistic effects on electrical characteristics and an electrochemically active surface area. Furthermore, the LNCM nanoparticles on the MoO3/P nanobelts provide more electrocatalytic active sites, efficient charge transport capacity, improved electrical properties, and strong electronic contacts.
APPLIED SURFACE SCIENCE
(2023)
Editorial Material
Biochemistry & Molecular Biology
Hongda Li, Shuai Jian, Mohammed Baalousha
Article
Medicine, General & Internal
Sungho Hong, Eui Jin Hwang, Soojin Kim, Jiyoung Song, Taehee Lee, Gyeong Deok Jo, Yelim Choi, Chang Min Park, Jin Mo Goo
Summary: This study evaluated the influence of different visualization methods for AI-CAD on the accuracy of radiologists' interpretations of chest radiographs. The combined method of closed-line and heat map visualization showed significantly higher sensitivity and accuracy compared to the closed-line method. The heat map and combined methods also had significantly higher detection rates of clinically significant abnormalities.
Article
Chemistry, Multidisciplinary
Md Mahmudun Nabi, Jingjing Wang, Mohammed Baalousha
Summary: Home dust samples collected from HVAC filters in eleven homes in Columbia, South Carolina, USA were analyzed for metal concentrations and size-based elemental distributions. The study found that the dusts were contaminated with TiO2-engineered particles, and the concentrations of TiO2-engineered particles varied between 0 and 13,300 mg TiO2 kg(-1). Additionally, the dusts were also found to be contaminated with Ce and La, indicating potential health risks for construction workers during home renovation.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Engineering, Environmental
Karunamoorthy Saravanakumar, Keunyoung Yun, Velusamy Maheskumar, Yeonji Yea, Govindan Jagan, Chang Min Park
Summary: In this study, a novel Ti3C2 MXene quantum dots (MQDs)-modified In2S3/MQDs/SmFeO3 (IMS) Z-scheme heterojunction was successfully designed and investigated. The as-prepared IMS heterojunctions showed significantly enhanced photocatalytic degradation of sulfamethoxazole and 4-chlorophenol compared to single and binary catalysts. The introduction of MQDs as charge transport bridges in the Z-scheme system played a crucial role in achieving effective spatial separation and charge transfer.
CHEMICAL ENGINEERING JOURNAL
(2023)