Article
Chemistry, Physical
Hirofumi Sakanakura, Kenichi Ito, Jiajie Tang, Mikako Nakagawa, Hiroyuki Ishimori
Summary: This study developed a method to determine adsorption parameters for potentially contaminant-releasing materials (PCMs) using LS-parallel tests, which showed good agreements for some substances but discrepancies for others. Improvement is needed in the LS-parallel test procedure and advection-dispersion model for accurate prediction of contaminant release behavior.
Article
Environmental Sciences
M. G. Mostofa Amin, Ajida Akter, M. M. R. Jahangir, Tambir Ahmed
Summary: Inefficient water management in rice paddy results in significant water and nutrient loss, but detailed data is limited. The study shows that rainfed cultivation and irrigation after six days of ponded water disappearance lead to less nutrient leaching compared to irrigation after three days.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Computer Science, Interdisciplinary Applications
Katherine H. Markovich, Jeremy T. White, Matthew J. Knowling
Summary: This study evaluates the application of batch and sequential data assimilation methods in groundwater modeling. The results indicate that sequential data assimilation performs better in handling predictive bias in the presence of model error. The study also proposes an ensemble-based complex-simple approach that incorporates stochastic uncertainty and statistical evaluation.
ENVIRONMENTAL MODELLING & SOFTWARE
(2022)
Article
Engineering, Chemical
Kresimir Ljubetic, Wenying Liu
Summary: Extensive research has been conducted on the kinetic limitations of using ferric chloride for gold leaching. The study found that the formation and adsorption of AuClads during leaching hindered gold dissolution, leading to the plateauing of the leaching curves.
MINERALS ENGINEERING
(2022)
Article
Environmental Sciences
Masayuki Someya, Kazuo Higashino, Yukari Imoto, Hirofumi Sakanakura, Tetsuo Yasutaka
Summary: Soil batch leaching tests worldwide aim to quantify the leaching of hazardous substances from contaminated soil. Recent studies show that soil colloidal particles with small diameters may still persist in the filtrate even after filtration through a 0.45-μm membrane filter, potentially affecting the concentration of arsenic or lead. The study evaluated the effects of 0.45- or 0.4-μm MF materials on filtrate turbidity and leaching concentrations of inorganic hazardous elements, finding that the MF material significantly influences the removal rate of colloidal arsenic or lead and thus impacts the results of leaching tests.
Article
Environmental Sciences
Yuan Yao, Lizhi Tong, Ruolin Zhao, Qianhui Wang, Jinli Qiu, Fenghe Wang, Jining Li, Yifan Yan, Yue He, Shuqin Li
Summary: This study investigates the water-leaching characteristics of heavy metal(loid)s from historical Pb-Zn mine tailing. The results indicate that the release of HMs is primarily controlled by solubility and the dissolution of Ca-bearing minerals. The impact of the studied tailing on the surrounding aquatic environments is limited.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Kensuke Mizuki, Masahiko Katoh
Summary: Phosphorus recovery from excavated and in situ soil was tested using various extraction and retention methods, demonstrating that over 10% and 5% of available P in the soil could be recovered. The retained P material could potentially be used for chemical fertilizer production.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Metallurgy & Metallurgical Engineering
Jianfa Jing, Yufeng Guo, Feng Chen, Shuai Wang, Lingzhi Yang
Summary: This study proposes a novel process to prepare boiling chlorinated charges from modified titanium slag, which includes sulfuric acid leaching, hydrochloric acid leaching, and removing silica from the hydrochloric acid leach residue. The leaching efficiencies of various elements were systematically investigated and achieved acceptable results. The product obtained in this process meets the requirements of the chemical compositions for boiling chlorinated charge.
Article
Engineering, Industrial
Hung-Ping Tung, I-Chen Lee, Yili Hong, Sheng-Tsaing Tseng, Bing Xing Wang
Summary: Accelerated life tests (ALTs) often use batch sequential design (BSD) to test multiple units simultaneously and update parameter estimates, reducing total testing time (TTT) while maintaining the advantages of sequential designs.
QUALITY ENGINEERING
(2021)
Article
Geosciences, Multidisciplinary
Jie Liu, Klaus Regenauer-Lieb
Summary: Percolation Theory has greatly advanced the understanding of physical processes and found practical applications in various fields, particularly in geosciences. By utilizing digital rock techniques and CT scans, it is possible to derive rock properties and critical percolation parameters, providing valuable insights into the complex dynamics of porous media.
EARTH-SCIENCE REVIEWS
(2021)
Article
Physics, Multidisciplinary
P. T. Madathil, K. A. Villegas Rosales, C. T. Tai, Y. J. Chung, L. N. Pfeiffer, K. W. West, K. W. Baldwin, M. Shayegan
Summary: Disorder-induced localization in condensed matter physics and the temperature dependence of plateau-to-plateau transitions in quantum Hall systems have been extensively studied. In this study, scaling measurements were performed in the fractional quantum Hall state regime, where electron-electron interaction dominates. The results suggest that the critical exponent for transitions between different fractional quantum Hall states varies and is close to the one reported for transitions between high-order fractional quantum Hall states with intermediate strength. The nonuniversal nature of the observed critical exponent is discussed.
PHYSICAL REVIEW LETTERS
(2023)
Article
Environmental Sciences
Dico Fraters, Gerard H. Ros, Timo Brussee
Summary: The nitrate concentration in subsoil moisture is crucial for predicting groundwater quality. Although centrifugation is a common method, batch extraction provides a cost-effective alternative. This study compared the two methods and found differences in nitrate and other anion concentrations, indicating the importance of using appropriate methods for accurate measurements and monitoring.
Article
Environmental Sciences
Tuan-Nguyen Quoc, Myung-Chae Jung
Summary: The presence of copper-contaminated soil has increased recently due to agricultural and industrial activities. Immobilization techniques using soil amendments have attracted significant research. This study used various commercial amendments to immobilize copper in contaminated soil and found that talc treatment showed the highest efficiency in copper immobilization.
Article
Engineering, Electrical & Electronic
Sreeram C. Sreenivasan, Srikrishna Bhashyam
Summary: A nonparametric search problem was studied to detect L anomalous data streams, proposing universal distribution-free sequential tests and comparing their performance with fixed sample size tests through simulations.
IEEE SIGNAL PROCESSING LETTERS
(2021)
Article
Environmental Sciences
Virendra Kumar Yadav, Krishna Kumar Yadav, Javed Alam, Marina M. S. Cabral-Pinto, Govindhan Gnanamoorthy, Mansour Alhoshan, Hesam Kamyab, Ali Awadh Hamid, Fekri Abdulraqeb Ahmed, Arun Kumar Shukla
Summary: Incense sticks ash, a by-product of incense stick combustion, contains heavy metals and alkali metals which pose potential threats to living organisms and water bodies. By using acid-base extraction methods, toxic metals can be eliminated and value-added minerals can be recovered. The study found that these processes can alter the composition, morphology, and size of incense sticks ash particles.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Hermann Ruegner, Marc Schwientek, Radmilla Milacic, Tea Zuliani, Janja Vidmar, Momi Paunovic, Sofia Laschou, Eleni Kalogianni, Nikolaos T. Skoulikidis, Elena Diamantini, Bruno Majone, Alberto Bellin, Gabriele Chiogna, Elena Martinez, Miren Lopez de Alda, M. Silvia Diaz-Cruz, Peter Grathwohl
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Environmental Sciences
Nicole BandowL, Michael Finkel, Peter Grathwohl, Ute Kalbe
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2019)
Article
Environmental Sciences
Gaeelle Guillet, Julia L. A. Knapp, Sylvain Merel, Olaf A. Cirpka, Peter Grathwohl, Christian Zwiener, Marc Schwientek
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Environmental Sciences
Sven Seidensticker, Christiane Zarfl, Olaf Arie Cirpka, Peter Grathwohl
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2019)
Article
Environmental Sciences
Ying Liu, Shuya Xie, Lirong Zheng, Tongtong Li, Yajie Sun, Limin Ma, Zhifen Lin, Peter Grathwohl, Rainer Lohmann
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Computer Science, Interdisciplinary Applications
M. Finkel, A. Baur, T. K. D. Weber, K. Osenbrueck, H. Ruegner, C. Leven, M. Schwientek, J. Schloegl, U. Hahn, T. Streck, O. A. Cirpka, T. Walter, P. Grathwohl
EARTH SCIENCE INFORMATICS
(2020)
Article
Environmental Sciences
Mehrzad Keshavarzifard, Mohamad Pauzi Zakaria, Moslem Sharifinia, Peter Grathwohl, Shahin Keshavarzifard, Reza Sharifi, Sajjad Abbasi, Meisam Rastegari Mehr
Summary: This study assessed the levels and sources of aliphatic hydrocarbons and hopanes in surface sediments collected from rivers and estuaries of Peninsular Malaysia. The results indicate that the estuaries are mostly influenced by petrogenic input due to anthropogenic activities. However, some stations also show the presence of biogenic origin n-alkanes masked by anthropogenic features. The hopane ratios suggest that Middle East Crude Oil (MECO) is one of the sources of petroleum hydrocarbons from the Prai and Malacca Rivers.
ENVIRONMENTAL FORENSICS
(2022)
Article
Geosciences, Multidisciplinary
Anna-Neva Visser, Moritz F. Lehmann, Hermann Ruegner, Fernando Mazo D'Affonseca, Peter Grathwohl, Nia Blackwell, Andreas Kappler, Karsten Osenbrueck
Summary: This study in Germany investigated the role of karstified recharge areas in nitrate (NO3-) transfer and turnover, revealing a significant spatial variability in groundwater NO3- concentrations. Isotopic analysis confirmed the main source of NO3- is manure or fertilizer applications, with denitrification indicated by high delta N-15 and delta O-18 values in NO3- and elevated NO2- concentrations. The results suggest that fissure networks in the phreatic zone and the epikarst play an important role in nitrogen turnover during aquifer recharge.
HYDROGEOLOGY JOURNAL
(2021)
Article
Engineering, Environmental
Ying Liu, Shuya Xie, Yajie Sun, Limin Ma, Zhifen Lin, Peter Grathwohl, Rainer Lohmann
Summary: Accurately estimating the chemical activity of hydrophobic organic contaminants in field soils poses a significant challenge. The study developed ex-situ and in-situ determinations using low-density polyethylene (LDPE) passive sampling and non-equilibrium corrections with performance reference compounds (PRCs). Kinetic processes of target contaminants' uptake and PRCs' release were investigated, with a second-order kinetic model recommended for ex-situ measurements. The results showed that two-week deployments were sufficient for quantifying lighter PAHs, but longer deployment times were needed for accurate estimation of heavier PAHs.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Binlong Liu, Michael Finkel, Peter Grathwohl
Summary: Initial conditions, mass transfer mechanisms, and sample composition play a crucial role in leaching of various compounds during column percolation tests. Mechanistic models provide insights into the complexity of such tests, especially with heterogeneous samples. Numerical experiments illustrate the impact of initial concentration distribution and different mass transfer mechanisms on leaching behavior.
Article
Chemistry, Physical
Maria Prieto-Espinoza, Bernd Susset, Peter Grathwohl
Summary: The recycling of mineral materials is a sustainable and economical method for reducing waste and saving resources. However, there may be potential risks of groundwater contamination. This study used column leaching tests to investigate the leaching behavior of salts, metals, and organic pollutants from different grain size fractions of construction and demolition waste and railway ballast. The results showed that only the gravel fractions had concentrations of potential pollutants low enough for unlimited re-use.
Review
Geosciences, Multidisciplinary
Caiubi Emanuel Souza Kuhn, Fabio Augusto Gomes Vieira Reis, Christiane Zarfl, Peter Grathwohl
Summary: This study systematically analyzes the impacts of ravines and gullies on socioeconomic conditions and ecosystem services by compiling relevant variables and evaluating more than 120 articles from 27 countries. The most significant impacts are found in South America, Africa, China, and India, which are attributed to disordered land occupation. Implementing evaluations of these impacts is challenging due to the diverse forms and long-term effects on environmental, economic, and social changes.
Article
Environmental Sciences
Caiubi Emanuel Souza Kuhn, Fabio Augusto Gomes Vieira Reis, Andrea Fregolente Lazaretti, Christiane Zarfl, Victor Carvalho Cabral, Peter Grathwohl
Summary: This research analyzes the official record of ravines and gullies disasters in Brazil, focusing on the economic impacts. The study finds a growing trend in the number of disasters related to ravines and gullies in the past decade, with an estimated loss of US$ 54 million. The greatest economic impacts were on public infrastructure and residential areas. The spatial distribution of these disasters suggests a connection between the development of ravines and gullies and the agricultural frontier in Brazil.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Environmental Sciences
Haiyan Li, Dandan Duan, Barbara Beckingham, Yu Yang, Yong Ran, Peter Grathwohl
MARINE POLLUTION BULLETIN
(2020)
Proceedings Paper
Geochemistry & Geophysics
Evgenii Kortunov, Chuanhe Lu, Richard Amos, Peter Grathwohl
16TH INTERNATIONAL SYMPOSIUM ON WATER-ROCK INTERACTION (WRI-16) AND 13TH INTERNATIONAL SYMPOSIUM ON APPLIED ISOTOPE GEOCHEMISTRY (1ST IAGC INTERNATIONAL CONFERENCE)
(2019)
Article
Engineering, Environmental
Xiaojian Liu, Bei Wang, Yayun Ma, Xiangyang Zhou, Juan Yang, Yuehui He, Jingjing Tang, Fanyun Su, Wan Yang
Summary: This study proposes a combined process of reduction roasting of herb-medicine residue and oxalic acid leaching to improve the recovery efficiency of lithium from spent lithium-ion batteries. By utilizing the reducing gas produced from the pyrolysis of herb-medicine residue, the layered structure of the cathode powder is destroyed and converted into Li2CO3, Ni, Co, and MnO. Additionally, selective extraction of lithium is achieved using oxalic acid, and the efficiency and kinetics of lithium extraction are improved under the combined action of herb-medicine residue and oxalic acid.
Article
Engineering, Environmental
Muxina Konarova, Nuno Batalha, Gabriel Fraga, Mohamed H. M. Ahmed, Steven Pratt, Bronwyn Laycock
Summary: This study presents a proof of concept for a technology that integrates PET recovery from mixed plastic waste and plastic pyrolysis. By depolymerizing PET into TPA using a low volatility oil as medium, it achieves low-pressure operation and a selective separation and recovery of TPA from the product mix. Full PET conversion and high TPA recovery were achieved, making it an effective solution for processing mixed waste streams and improving the yield and quality of liquid product from thermal pyrolysis compared to untreated feedstock.
Article
Engineering, Environmental
Zhenhua Sun, Jing Li, Xuejiang Wang, Siqing Xia, Jianfu Zhao
Summary: This study investigated the influence of in-situ formed MgFe2O4 on the hydrothermal treatment of swine manure. The results showed that the in-situ formation of MgFe2O4 improved the dehydration and decarboxylation of organic components in swine manure, thereby improving its carbonization degree. Furthermore, it enhanced the stabilization of heavy metals and the retention of phosphorus. MgFe2O4 modified hydrochars exhibited remarkable adsorption capacity for Pb(II) and Cu(II) without any leaching of heavy metals.
Article
Engineering, Environmental
Yijing Jiang, Boyang Leng, Jingxin Xi
Summary: The increased generation of municipal solid waste has had a significant impact on the economy, environment, and public health. The current waste treatment process has limitations. By developing a comprehensive social costing model, this study assesses the impacts of municipal solid waste management throughout its life cycle and provides policymakers with best practices and feasibility information.
Article
Engineering, Environmental
Marina Hernandes de Paula e Silva, Ricardo Coser Mergulha, Jose Geraldo Vidal Vieira, Andrea Brasco Pampanelli, Rodrigo Salvador, Diogo Aparecido Lopes Silva
Summary: This study developed and implemented a self-assessment tool to assist companies in decision-making processes for establishing circular flows based on Lean Manufacturing and Circular Economy principles. The tool utilized a maturity model and was applied to nine companies of varying characteristics. The findings revealed that certain companies showed higher maturity in water-waste and chemical-emissions management, with larger enterprises focusing on these strategies. However, many companies lacked sufficient training and employee awareness prior to seeking cleaner alternatives, and comprehensive actions to manage the product lifecycle were lacking. To address these gaps, the tool provided tailored recommendations for each company to improve their processes, products, and value chain.
Article
Engineering, Environmental
Gamze Dogdu, Turgay Pekdemir, Sanaz Lakestani, Seyda Karabork, Osman Cavus
Summary: This paper presents data on food waste associated with mini size food packaging services, highlighting the difficulties in emptying the food and consumer wastefulness as the main causes. These findings have significant implications for the sustainability of food and relevant packaging.
Article
Engineering, Environmental
Qingxia Li, Xin Kong, Yuxin Chen, Jianan Niu, Jia Jing, Jin Yuan, Yifeng Zhang
Summary: This study investigates how to enhance methane production from food waste after hydrothermal pretreatment. The results demonstrate a significant increase in methane yield when zero-valent iron and magnetite are used together, and high organic loading is favorable for methane production. Microbial diversity analysis further reveals the dominant pathways and metabolic processes involved in methane generation.
Article
Engineering, Environmental
D. H. H. Sim, I. A. W. Tan, L. L. P. Lim, E. T. Lau, B. H. Hameed
Summary: The development of controlled-release fertilizer formulation is important for preventing environmental pollution caused by nutrient leaching and volatilization. This study combined biochar-based fertilizer with encapsulation technology to improve the nutrient release mechanism. Optimal conditions for synthesizing urea-impregnated biochar (UIB) were determined using central composite design, and the release of nitrogen was described by mathematical models. Results showed that encapsulated UIB (EUIB) achieved complete release of nitrogen in water and exhibited improved water retention in sandy-textural soil. Therefore, EUIB derived from peppercorn waste has the potential to be used as a sustainable controlled-release fertilizer for agriculture.
Article
Engineering, Environmental
Yuchuan Wang, Neslihan Akdeniz
Summary: Incorporating biochar into composting systems can increase compost temperatures. This study developed a heat transfer model for a biochar-amended co-composting system and found that biochar increased thermal conductive losses but also enhanced microbial activity, resulting in an overall increase in total heat unit. When biochar was applied on the surface, it mainly functioned as an insulator.
Article
Engineering, Environmental
George Tsalis, Birger Boutrup Jensen, Jessica Aschemann-Witzel
Summary: This paper empirically explores the relationship between retail price promotions and household food waste. The results show that households with a higher proportion of discount food purchases and environmental awareness tend to waste less food, while larger households and those lacking food handling skills tend to waste more food.
Article
Engineering, Environmental
Lukas Friederici, Arne Koch, Patrick Martens, Jana Pantzke, Sebastiano Di Bucchianico, Thorsten Streibel, Christopher P. Rueger, Ralf Zimmermann
Summary: The increasing demand for lightweight materials has led to a rise in fiber-reinforced plastic (FRP) production. However, the properties and compositional range of FRPs pose challenges to recycling strategies. Pyrolysis has emerged as a promising method for separating the fibers from the polymer matrix. This study investigated the pyrolysis process using thermal analysis and high-resolution mass spectrometry, and also assessed the toxicity of the recovered fibers using an in vitro model.
Review
Engineering, Environmental
Devika Kannan, Shakiba Khademolqorani, Nassibeh Janatyan, Somaieh Alavi
Summary: This paper introduces Smart Waste Management (SWM) that applies Industry 4.0 technologies in waste management. A framework called SWM4.0 is developed, which highlights the importance of smart people, smart cities, smart enterprises, and smart factories in achieving successful waste management. The paper also suggests future research directions and managerial implications.