Article
Environmental Sciences
Liang Meng, Jing Chen, Deyang Kong, Yuefei Ji, Junhe Lu, Xiaoming Yin, Quansuo Zhou
Summary: Peracetic acid (PAA) has been widely used as a disinfectant in wastewater treatment, but its oxidation of bromide-containing wastewater has not been fully explored. This study found that PAA can oxidize bromide ions to form organic bromine compounds, such as bromophenols. Regulated brominated disinfection byproducts (Br-DBPs) only accounted for a small fraction of the organic bromine formed. Monitoring regulated DBPs may not fully indicate the potential environmental risk of PAA application in wastewater treatment.
Review
Environmental Sciences
Feilong Dong, Jiani Zhu, Jinzhe Li, Chuyun Fu, Guilin He, Qiufeng Lin, Cong Li, Shuang Song
Summary: Disinfection is effective in eliminating pathogens in drinking water treatment, but the formation of disinfection byproducts (DBPs) can lead to serious health concerns. Previous research mainly focused on DBP formation during disinfection in water treatment plants, with little attention to their formation and transformation in the water distribution system (WDS). This paper provides a comprehensive review of DBP formation and transformation in the WDS, cataloging their occurrence worldwide and summarizing the primary factors influencing their formation, such as secondary chlorination, pipe materials, biofilm, deposits, and coexisting anions. The review also describes the mechanism of DBP formation and transformation in the WDS, highlighting the conversion of aromatic DBPs to aliphatic DBPs and examines the toxicity of drinking water in the WDS caused by DBP transformation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Lap-Cuong Hua, Peijun Cai, Ching Huang, Chihpin Huang
Summary: This study proposes a two-stage differential characterization approach to trace Br-DBP precursors and BSF, highlighting the significant insufficiency of conventionally-used parameters for monitoring Br-DBPs. The new two-stage characterization parameters show superior correlation coefficients and promising application for effective Br-DBPs and BSF monitoring.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Xian-Shi Wang, Heng Song, Jing Zhang, Yu-Lei Liu, Jun Ma, Lu Wang
Summary: HOCl was found to effectively convert iodinated phenolic disinfection byproducts into non-toxic iodate and less toxic chlorinated aliphatic DBPs, reducing the acute toxicity of water samples containing iodophenols. Further investigations on the transformation and toxicity alteration of emerging DBPs during chlorination/booster chlorination are warranted due to the widespread use of chlorine as a disinfectant.
Article
Environmental Sciences
Kowsalya Vellingiri, P. Ganesh Kumar, P. Senthil Kumar, S. Jagannathan, S. Kanmani
Summary: Due to limited access to safe drinking water, India faces a high incidence of waterborne disease outbreaks. Efforts are being made to improve the quality of drinking water, with a focus on disinfection to control microbial populations. However, in India, research on the toxicity and trends of disinfection byproducts (DBPs) is still in its early stages.
Article
Engineering, Chemical
Feilong Dong, Qiufeng Lin, Cong Li, Liping Wang, Andreina Garcia
Summary: The combination of UV and chlorination effectively inhibits algal growth and reduces the formation of DBPs in algal-impacted surface waters. Higher UV doses, longer oxidation time, and neutral to acidic pH conditions are beneficial in controlling DBPs formation. UV/chlorination can promote brominated DBPs formation while reducing chlorinated DBPs in algal solutions containing bromide, making it a feasible treatment method for algal-rich water.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Environmental Sciences
Zhao-Xi Ye, Kai-Li Shao, Huang Huang, Xin Yang
Summary: The study indicates that tetracycline antibiotics form DBPs including DCAcAm during chlorination and chloramination, with DCAcAm being a main contributor to the yields and cytotoxicity of the measured DBPs.
Article
Environmental Sciences
Hongyan Zhai, Shengzi Cheng, Liangyu Zhang, Wenjing Luo, Yanan Zhou
Summary: This study investigates the formation of disinfection byproducts (DBPs) during chlorination and chloramination of algal organic matter (AOM) from four algal species. It identifies the factors that affect the types and yields of DBPs under different conditions. The results show that the concentrations of disinfectant, pH, and bromide can all influence the formation of DBPs during chlorination and chloramination processes.
Article
Environmental Sciences
Xin Zhang, Jiachen Shi, Xiaoyong Huang, Bing Shao
Summary: Estazolam (EZ), a long-acting benzodiazepine drug, has been found to generate multiple disinfection byproducts during chlorination, posing potential risks to public health. The residues of EZ and its DBPs exhibit higher concentrations in drinking water, with potential toxicity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Wen-Cheng Huang, Min Liu, Fu-Gang Zhang, Dan Li, Ye Du, Ying Chen, Qian-Yuan Wu
Summary: This study investigated the removal of disinfection byproducts (DBPs) and toxicity of chlorinated water using post-treatments of UV/hydrogen peroxide (UV/H2O2) and UV/peroxymonosulfate (UV/PMS). The results showed that adding H2O2 or PMS improved the removal of nitrogenous DBPs and total organic chlorine (TOCl) compared to UV alone. However, the removal efficiency was reduced in the presence of bromide. UV/H2O2 was more effective in removing cytotoxicity and genotoxicity than UV/PMS. In the UV/PMS process, SO4'- was more efficient in removing toxicity than 'OH.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Luan de Souza Leite, Danilo Vitorino dos Santos, Cristina Filomena Pereira Rosa Paschoalato, Tom Bond, Luiz Antonio Daniel
Summary: Eutrophication in water reservoirs leads to the release of algal organic matter (AOM), which serves as an important precursor for disinfection by-products (DBPs) during water treatment. This study investigates the DBP formation from chlor(am)ination of AOM derived from the microalgae Chlorella sorokiniana, which is expected to become more prevalent in algal blooms due to climate change. The results show that Chlorella sorokiniana AOM exhibits higher DBP formation compared to previously studied algae species.
Article
Engineering, Environmental
Jiaming Lily Shi, William A. Mitch
Summary: Chlorine reactions with peptide-bound amino acids contribute to pathogen inactivation by degrading protein structure and function, and forming disinfection byproducts. This study characterized the reactions of lysine and arginine with chlorine, demonstrating the formation of chloramines as the major products. The chloramines formed nitriles and aldehydes, which are more relevant than the corresponding aldehydes and nitriles to byproduct formation and pathogen inactivation over timescales relevant to drinking water distribution. Previous research has shown that lysine chloramines are cytotoxic and genotoxic, and their conversion to neutral chloramines alters protein structure and function, enhancing protein aggregation and contributing to pathogen inactivation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Wanxin Li, Xiangru Zhang, Jiarui Han
Summary: A new reaction pathway in the chlorination of acetaminophen, involving oxidative coupling reactions via acetaminophen radicals, was investigated in this study. Over 20 polymeric products, some similar to polychlorinated biphenyls, were detected in chlorinated acetaminophen samples using advanced analytical techniques. Quantum chemical calculations revealed the bonding processes and kinetics of both C-C and C-O bonding products. This study suggests that chlorination may cause both degradation and upgradation of phenolic compounds or contaminants.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Zachary T. Kralles, Christian A. Werner, Ning Dai
Summary: This study reveals that the indole moiety in tryptophan can serve as a precursor for HANs, and 3-indolepropionic acid can even form more HANs than tryptophan under low oxidant excess conditions.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Chuyin Qiu, Weiting He, Yu Li, Feng Jiang, Yang Pan, Meihui Zhang, Daying Lin, Kaili Zhang, Yanduo Yang, Wen Wang, Pei Hua
Summary: Sugar can react with chlorine residual in tap water and generate halogenated DBPs. The addition of sucrose at 100 or 500 mg/L can increase the level of total organic halogen (TOX) by ~35%.
Article
Engineering, Environmental
Sang-Soo Baek, Eun-Young Jung, JongCheol Pyo, Yakov Pachepsky, Heejong Son, Kyung Hwa Cho
Summary: Harmful algal blooms have become a global issue, and model development is an alternative approach for understanding and managing them. Traditional modeling methods have limitations in simulating phytoplankton and zooplankton, while deep learning models show potential for simulating harmful algal blooms.
Article
Green & Sustainable Science & Technology
Dongwhi Lee, Taeil Yoon, Byeong Ha Lee, Heejong Son, Youngbin Baek, Yunho Lee
Summary: This study found that prechlorination can increase the permeate flux and improve water quality in GDM filtration by reducing the formation of fouling layer and affecting microbial growth, but the effects diminish with longer operation time.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Civil
Seung-Hyun Kim, Sanggoo Kim, Hoonsik Yoom, Heejong Son
Summary: This study evaluates the impact of using regenerated carbon in GAC filtration on the reduction of organic pollutants, based on long-term operational data. The results show that GAC filtration and ozonation are effective in reducing levels of dissolved organic carbon (DOC) and 1,4-dioxane. The use of regenerated carbon enhances DOC reduction, while virgin carbon is more effective for trihalomethane (THM) reduction, due to changes in pore size after regeneration.
AQUA-WATER INFRASTRUCTURE ECOSYSTEMS AND SOCIETY
(2022)
Article
Green & Sustainable Science & Technology
Yanni Sudiyani, Kenneth Widmer, Andreas Andreas, Aprilia Nur Tasfiyati, Zatil Afrah Athaillah, Muryanto Muryanto, Azilah Abd Aziz, Eun Young Lee, Yunho Lee, Suil Kang
Summary: The study found that after the implementation of a GDM filtration system in two rural schools in Indonesia, water quality improved with a reduction in fecal indicator bacteria and a decrease in student diarrhea incidence.
Article
Engineering, Environmental
Valentin Rouge, Pham Thi Thai Ha Nguyen, Sebastien Allard, Yunho Lee
Summary: This study investigates the reaction kinetics and products of ferrate (Fe(VI)) with primary amines, specifically amino acids. A new kinetic model involving ionizable intermediates is proposed to explain the unusual pH effect on the reactivity of Fe(VI) towards primary amines and amino acids. The study finds that the product distribution for amino acids differs significantly from that of uncarboxylated primary amines, with amino acids producing multiple products while primary amines mainly produce nitriles.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Younggun Yoon, Hyojung Park, Sihyun An, Jae-Hyung Ahn, Bongkyu Kim, Jaedon Shin, Ye-eun Kim, Jehyeong Yeon, Joon-hui Chung, Dayeon Kim, Min Cho
Summary: Despite the existence of numerous bioplastic-degrading bacteria, the inconsistent rate of bioplastic degradation under different cultivation conditions limits the comparison of degradation kinetics. In this study, a PCL-degrading bacterium was isolated from a plastic-contaminated landfill and its degradation kinetics were determined in a confined model system. The findings are important for measuring and predicting the degradation rates of PCL films by microorganisms in natural environments.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Environmental
Dongwhi Lee, Youngbin Baek, Heejong Son, Soryong Chae, Yunho Lee
Summary: Pre-ozonation can increase the membrane flux and improve the permeate quality in gravity-driven membrane filtration (GDM). The timing of pre-ozonation significantly affects the flux behavior and fouling layer characteristics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Woongbae Lee, Sangki Choi, Hyunjin Kim, Woorim Lee, Minju Lee, Heejong Son, Changha Lee, Min Cho, Yunho Lee
Summary: This study assessed and compared the efficiencies of ozonation and ozone with hydrogen peroxide for the removal of organic micropollutants (OMPs), as well as the inactivation of bacteria and viruses, and the formation of bromate and biodegradable organics in municipal wastewater effluent. The results showed that ozonation effectively eliminated 39 OMPs, with 22 OMPs achieving a removal rate of 54 ± 14% at an ozone dosage of 0.5 gO(3)/gDOC. The concentration and exposure time of ozone were positively correlated with microbial inactivation levels, and O-3/H2O2 minimized bromate formation but decreased bacteria/virus inactivation. Ozonation also produced biodegradable organics, which could be removed through post-biodegradation treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Sung Ho Chae, Seung Ji Lim, Mingizem Gashaw Seid, Wondesen Workneh Ejerssa, Aseom Son, Heejong Son, Sangki Choi, Woongbae Lee, Yunho Lee, Seok Won Hong
Summary: This study aimed to implement a comprehensive prediction model for the fate of micropollutants in wastewater treatment plants (WWTPs). Through monitoring five WWTPs in South Korea, it was found that the majority of micropollutants were effectively removed by biological treatment processes. Furthermore, the prediction model was improved by optimizing the biodegradation rate constants of each micropollutant, resulting in more accurate predictions of actual data.
Article
Engineering, Environmental
Yun Lee, Jin-Hyung Noh, Ji-Won Park, Seon-Won Yoon, Sang-Yeob Kim, Hee Jong Son, Woorim Lee, Sung Kyu Maeng
Summary: Ion exchange resins are commonly used to remove natural organic matter from drinking water, but disposing of the used brine can be problematic. This study explores the use of a hybrid biological ion exchange and activated carbon system for drinking water treatment, which proves to be the most effective method for removing natural organic matter and reducing the formation of disinfection byproducts.
Article
Environmental Sciences
Chengsong Ye, Kaiting Zhang, Peizhe Sun, Yunho Lee, Kyriakos Manoli, Xin Yu, Mingbao Feng
Summary: This study presents an advanced oxidation strategy using ruthenium(III) and periodate, which can rapidly eliminate microbial and chemical pollutants in water, including bacteria, bacteriophage MS2, antibiotic resistance genes, and organic micropollutants.
Article
Environmental Sciences
Sujin Shin, Yunho Lee
Summary: Extracellular antibiotic resistance genes (e-ARGs) are emerging water contaminants that are degraded in sunlit surface waters mainly through traditional UV photolysis and reactions with (OH)•, while the relative contribution of singlet oxygen (O-1(2)) to e-ARG degradation is minor.
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)