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Waleed Jadaa
Wastewater discharges from industrial processes typically include elevated concentrations of contaminants, which largely consist of potentially harmful chemicals such as heavy metals. These contaminants are characterized by their slow rate of decompositi...
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Fatemeh Mollaamin and Majid Monajjemi
Carbon dioxide (CO2) adsorption on decorated graphene (GR) sheets with transition metals (TMs) including iron, nickel and zinc was investigated for removing this hazardous gas from the environment. TM-doped GR results in higher activity toward gas detect...
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Aisha Khan Khanzada, Muhammad Rizwan, Hussein E. Al-Hazmi, Joanna Majtacz, Tonni Agustiono Kurniawan and Jacek Makinia
Arsenic (As) is a prominent carcinogen component produced via both geogenic and anthropogenic processes, posing serious risks to human health. This study aimed to investigate the potential of hydrochar prepared from red macroalgae for removing As from sy...
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Candelaria Tejada-Tovar, Ángel Villabona-Ortíz and Rodrigo Ortega-Toro
The pollution of water bodies due to the discharge of effluents without treatment is a global problem. Therefore, different technologies have been implemented for the removal of contaminants from wastewater before the final disposition. Among them, adsor...
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Andrey Kozelkov, Nikolay Galanov, Ilya Semenov, Roman Zhuchkov and Dmitry Strelets
The paper presents the results of studying the effects of droplet diameters on the NACA0012 airfoil ice accretion, which have been obtained in the 3D numerical simulation of icing. To simulate the motion of water droplets as a multiphase medium, the Eule...
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Vittorio Giannetti, Manuel Martín Saravia, Luca Leporini, Simone Camarri and Tommaso Andreussi
One of the main oscillatory modes found ubiquitously in Hall thrusters is the so-called breathing mode. This is recognized as a relatively low-frequency (10?30 kHz), longitudinal oscillation of the discharge current and plasma parameters. In this paper, ...
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Babagana Gutti, Habu Mohammed Iyodo, Umar Abdullahi Isah
Pág. 68 - 75
Biosorption of the lead ions from aqueous solutions using dum palm kernel was studied, the lead ion removal depends on the contact time, pH and adsorbent dosage. The optimum contact time, pH and adsorbent mass with in the experimental limit of this work ...
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Babagana Gutti, Habu Mohammed Iyodo, Umar Abdullahi Isah
Pág. 68 - 75
Biosorption of the lead ions from aqueous solutions using dum palm kernel was studied, the lead ion removal depends on the contact time, pH and adsorbent dosage. The optimum contact time, pH and adsorbent mass with in the experimental limit of this work ...
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Lucía Herrer, Santiago Martín and Pilar Cea
The societal impact of the electronics industry is enormous?not to mention how this industry impinges on the global economy. The foreseen limits of the current technology?technical, economic, and sustainability issues?open the door to the search for succ...
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Balendu Shekher Giri, Mandavi Goswami, Prabhat Kumar, Rahul Yadav, Neha Sharma, Ravi Kumar Sonwani, Sudeep Yadav, Rajendra Prasad Singh, Eldon R. Rene, Preeti Chaturvedi and Ram Sharan Singh
Biochar prepared from Sterculia alata fruit shell showed a better performance for dye removal than the biomass from Sterculia alata fruit shell. The important process parameters?namely the pH, the amount of biochar, the initial dye concentration and the ...
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João Matheus Cassiano De Assis, Iêda Aparecida Pastre, Profa. Dra., Matheus Antonio Da Silva, Prof. Me.
Pág. 47 - 56
Las resinas de intercambio iónico son constituidas, en su gran mayoría, por polímeros orgánicos sintéticos con estructura reticulada que forman gránulos porosos y son portadores de carga eléctrica. Estas cargas son neutralizadas por sus contraiones prese...
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Cristiane Costa da Fonseca Cintra, Denismar Alves Nogueira, Luiz Alberto Beijo (Author)
Pág. e37792
The Langmuir isotherm is a nonlinear regression model, being one of the most applied in adsorption studies. In this type of study, the data are collected over time, which can provide correlated errors; in addition, the collection is not always done in an...
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Cristiane Costa da Fonseca Cintra, Denismar Alves Nogueira, Luiz Alberto Beijo
Pág. e37792
The Langmuir isotherm is a nonlinear regression model, being one of the most applied in adsorption studies. In this type of study, the data are collected over time, which can provide correlated errors; in addition, the collection is not always done in an...
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Nianrui Qu, Shuxin Sun, Qianran Zhao, Tifeng Jiao, Jingxin Zhou, Ruirui Xing, Faming Gao, Lexin Zhang and Qiuming Peng
The design and preparation of functional bolaamphiphile-based composite films are of key importance for application in a wide variety of fields. This study demonstrates a new approach to constructing composite films by the Langmuir-Blodgett (LB) method u...
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Zsanett Dorkó, Anett Szakolczai, Blanka Tóth, George Horvai
Pág. 10 - 14
If the measured isotherm data of an adsorption system are well described by the Freundlich equation, then they can similarly well be described by the bi-Langmuir or tri-Langmuir model in most practical cases. This is proved by Monte Carlo simulation and ...
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Eszter Gergely-Fülöp, Norbert Nagy, András Deák
Pág. 104 - 110
We report the preparation and optical characterization of Langmuir and Langmuir-Blodgett (LB) films of mesoporous silica coated gold nanorods with three different shell thicknesses. When measured in solution, the extinction of the particles in theshort w...
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Sugihhartati Dj Rachmawati, Chedly Tizaoui and Nidal Hilal
Removal of heavy metals, such as copper ions, from water is important to protect human health and the environment. In this study, manganese coated sand (MCS) was used as an adsorbent to remove copper ions in a batch system. Equilibrium data were determin...
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Xunjun Chen
Adsorption is considered to be one of the most effective technologies widely used in global environmental protection areas. Modeling of experimental adsorption isotherm data is an essential way for predicting the mechanisms of adsorption, which will lead...
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Irene Yukiko Kimura, Valfredo Tadeu Favere, Amarildo Otavio Martins, Viviane Aparecida Spinelli, Atche Josué
Pág. 1313 - 1317
Microesferas de quitosana, com diâmetro médio 1,03 ± 0,06 mm e grau de desacetilação de 72,5%, foram empregadas como adsorvente para o corante reativo preto 5. A quitosana foi caracterizada através de espectroscopia no infravermelho (IV), RMN 13C e grau ...
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Vasiliy V. Grigoriev, Oleg Iliev and Petr N. Vabishchevich
Parameter identification is an important research topic with a variety of applications in industrial and environmental problems. Usually, a functional has to be minimized in conjunction with parameter identification; thus, there is a certain similarity b...
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