Article
Engineering, Chemical
Lei Su, Baicheng Pan, Ze Sun, Ping Song, Xingfu Song
Summary: This study investigated the extraction process of nitric acid from the nitric acid-hydrochloric acid-potassium chloride system, revealing the combination of nitric acid and tributyl phosphate through TBP.HNO3. The extraction of nitric acid occurs at the organic-aqueous interface, controlled by the diffusion of organic phase substances and interfacial chemical reactions. A mathematical model was established to describe the overall rate equation of nitric acid extraction, obtaining the mass transfer coefficient and reaction rate constant.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Leiming Ji, Miao Song, Liudong Hou, Xiaoteng Zhang, Yong Chen, Yongquan Qin, Xuefeng Hou, Jing Ma
Summary: This study investigates the oxidation process of tetravalent uranium and its impact on its use as a reducing agent, providing insights into the influencing factors and mechanism of tetravalent uranium oxidation.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Environmental Sciences
Nuray Ates, Nigmet Uzal, Ulku Yetis, Filiz B. Dilek
Summary: The residues of pesticides from agricultural activities contaminate water resources and threaten aquatic life. In this study, the rejection performance of three reverse osmosis membranes for four different pesticides was investigated. The results showed that all membranes had rejection rates over 95% for all pesticides. The rejection performance was influenced by the projection area as well as the molecular weight and hydrophobicity/hydrophilicity of the pesticides.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Analytical
Haiwang Liu, Yangyang Zhang, Zhuoyuan Chen, Zhaofei Zhang, Xinwei Cheng, Chao Xu, Jing Chen, Jianchen Wang, Hanshi Hu, Taoxiang Sun
Summary: The extraction behavior of TcO4- and ReO4- by TBP in n-dodecane from HNO3 and HCl solutions was investigated. The results indicated that TBP interacted with [H+ReO4-(H2O)(8)] and [H+TcO4-(H2O)(8)] clusters through hydrogen bonding, suggesting the outer-sphere coordination of ReO4- and TcO4- with TBP in the organic phase.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2023)
Article
Chemistry, Physical
Li Cui, Lijuan Wang, Ming Feng, Li Fang, Yanxia Guo, Fangqin Cheng
Summary: A new ion pair induced mechanism for selectively extracting Li+ from acidic chloride solutions by tributyl phosphate (TBP) is reported in this study. The formed ion-pair complex in the organic phase effectively extracts Li+ from the aqueous phase. The understanding of this ion-pair transport mechanism could help optimize the recovery process for lithium from acidic liquor.
GREEN ENERGY & ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
Ya Gao, Tong Yue, Wei Sun, Dongdong He, Chenglong Lu, Xinzhuang Fu
Summary: This study proposed a new method to recover acid and iron from pickling waste acid through extraction and pyrolysis. Experimental results showed that using CYC extractant at an O/A ratio of 2:1 yielded the best results. A feasible technological process was eventually put forward to recycle all chemicals and achieve zero emission in the process.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Biochemistry & Molecular Biology
Li Zhou, Qing-Liang Wang, Lin-Hong Mao, Si-Yuan Chen, Zi-Han Yang, Xue Liu, Yu-Hua Gao, Xiao-Qin Li, Zhi-Hang Zhou, Song He
Summary: NFIB plays an important role in inhibiting the urea cycle, and the knockout of NFIB gene in hepatocytes contributes to the aggravation of hepatocellular carcinoma.
FRONTIERS IN MOLECULAR BIOSCIENCES
(2022)
Article
Engineering, Environmental
Min Chang, Qin Wen, Tian Bai, Yu Liu, Xiaoxin Huang, Zhenqing Dai, Shengli Sun, Yuqiang Yang, Chengyong Li
Summary: This study proposes a simple and quick method to collect microplastics from flowing seawater, allowing efficient separation of microplastics of different sizes at various depths. Laboratory experiments showed an average recovery rate of 95.67% for seven types of microplastics. The method was successfully employed in real-world conditions, demonstrating its efficiency.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2023)
Article
Metallurgy & Metallurgical Engineering
V. Kuzmin, D. Kuzmin, N. Gudkova, S. N. Kalyakin, M. A. Mulagaleeva, V. N. Alekseenko, P. Aksyutin, Yu Bartseva, A. Ivanov, N. M. Kryuchek
Summary: This study investigated the possibility of thermally decomposing tributyl phosphate (TBP), the spent extractant from the PUREX process, into hydrocarbons and phosphoric acid. It was found that under certain conditions, using recycled phosphoric acid, TBP can be efficiently and completely decomposed into butene, along with a significant amount of alkanes and alkenes. This study provides a viable method for processing the spent extractant in the PUREX process.
Article
Fisheries
Muzi Zhang, Shidong Wang, Liying Sun, Lei Gan, Yanhong Lin, Jian Shao, Haibo Jiang, Ming Li
Summary: Fishes can adapt to environmental ammonia, and the study found that the CPS I mRNA was significantly up-regulated in liver and kidney tissues after acute ammonia stress. The RNA interference of CPS I led to changes in enzyme activities related to urea cycle and glutamine synthesis, suggesting a shift in ammonia detoxification strategies.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Article
Engineering, Chemical
Zheng Wei, Zhuo Chen, Zhongwei Yuan, Yuhang Dong, Jianhong Xu, Weifang Zheng
Summary: The study proposed a novel membrane dispersion micro extractor (MDME) for the removal of tributyl phosphate (TBP) from nitric acid solution. The results showed that the concentration of TBP in the aqueous phase could be reduced to below 20 mg/L within a short residence time of 75 s under certain conditions, mimicking the real industrial system. The overall volumetric mass transfer coefficient was found to be significantly higher compared to traditional solvent extraction equipment.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Multidisciplinary Sciences
Joyce Pinto, Malgorzata Debowska, Rafael Gomez, Jacek Waniewski, Bengt Lindholm
Summary: In non-anuric patients undergoing peritoneal dialysis, urine volume correlates positively with removed solute masses and weekly residual renal clearances, suggesting that it can be used as an estimator of typical values of residual solute removal indices in these patients.
SCIENTIFIC REPORTS
(2022)
Review
Metallurgy & Metallurgical Engineering
Kathryn George, Andrew J. Masters, Francis R. Livens, Mark J. Sarsfield, Robin J. Taylor, Clint A. Sharrad
Summary: Reprocessing of spent nuclear fuel has historically faced challenges in effectively separating fission products such as technetium and zirconium. The current methods require additional control strategies leading to increased operational costs. Further research is necessary to optimize separation chemistry and improve decontamination factors.
Article
Pharmacology & Pharmacy
Jamie L. Arnst, George R. Beck
Summary: Phosphorus, essential to cellular function, can promote cancer when available in excess. Manipulating phosphorus consumption could be a novel approach for cancer therapy.
BIOCHEMICAL PHARMACOLOGY
(2021)
Article
Environmental Sciences
Xin Zhang, Xuexi Tang, Yingying Yang, Zijie Sun, Wenqian Ma, Xin Tong, Chengmin Wang, Xinxin Zhang
Summary: The study revealed that TnBP has adverse effects on the reproduction and population growth of marine rotifers, causing reproductive toxicity at high concentrations, oxidative imbalance, impaired mitochondrial function, and disrupted metabolic pathways. Furthermore, TnBP induced internal connections that affect the balance of different life processes in response to environmental stress.
ENVIRONMENTAL POLLUTION
(2021)
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)