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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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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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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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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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Sefiu Olaitan Amusat, Temesgen Girma Kebede, Edward Ndumiso Nxumalo, Simiso Dube and Mathew Muzi Nindi
The modification of pristine biochar derived from the waste of sweet prickly pear using the green modification method to produce nano-sized biochar (nanobiochar) for the removal of steroidal hormones and heavy metals from water and wastewater is reported...
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Mochamad Lutfi Firdaus,Noli Krisnanto,Wiwit Alwi,Ronald Muhammad,Muhamad Allan Serunting
Pág. 1 - 7
Synthetic dye wastewater from textile industries is characterized by strong color, high temperature, variable pH and high chemical oxygen demand (COD). The strong color of wastewater affects aesthetic and water transparency of water bodies. The metabolit...
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Ana Fernando, Sofia Monteiro, Filomena Pinto and Benilde Mendes
In this study, waste olive cake (OC) was utilized as the raw material for the production of biosorbents by chemical treatment and its adsorption capacity for zinc ion was evaluated. Tests were conducted with the total biomass (T) and with the fraction > ...
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Chairunnisa Chairunnisa, Yuni Lisafitri, Mariyam Mariyam
Pág. 50 - 56
In this study, activated cassava leaves were prepared using NaCl (CLN) and KOH (CLK) as novel and low-cost materials for removing dyes from water. The prepared materials were characterized using Fourier transform infrared spectroscopy (FTIR) and scanning...
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Chairunnisa Chairunnisa, Yuni Lisafitri, Mariyam Mariyam
Pág. 50 - 56
In this study, activated cassava leaves were prepared using NaCl (CLN) and KOH (CLK) as novel and low-cost materials for removing dyes from water. The prepared materials were characterized using Fourier transform infrared spectroscopy (FTIR) and scanning...
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Oviyanti Mulyani, Benny Joy and Dikdik Kurnia
In recent years, the application of cow manure waste as an adsorbent of heavy metals in water and soil has increased. The analysis of the most effective adsorbents from cow manure as materials that can reduce heavy metals, while being low-cost and easy t...
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Fabian Audu Ugbe, Patrick Onuh Anebi, Victoria Abiola Ikudayisi
Pág. 14 - 19
Eosin Yellow (EY), an anionic dye (acid dye) was adsorbed using an agricultural waste, pineapple peels (PP) as bio-sorbent in order to investigate its suitability as an alternative adsorbent, and to give insight into the mechanisms of binding. The study ...
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Ana Lucia Pereira de Araujo, Caroline Bertagnolli, Meuris Gurgel Carlos da Silva, Marcelino Luiz Gimenes, Maria Angélica Simões Dornellas de Barros
Pág. 352 - 332
This paper evaluated the adsorption capacity of zinc by Bofe bentonite clay. Bofe clay was subjected to a thermal treatment for optimizing its adsorption capacity. The kinetic equilibrium of the process was studied in a finite bath system and experiments...
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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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Kateryna Stepova, Iryna Fediv, Au?ra Ma?eikiene, Julita ?arko and Jonas Ma?eika
The research focuses on ammonia and phosphate removal from wastewater by using a novel metal and microwave-treated clinoptilolite. For increasing adsorption capacity, the samples were calcinated or microwave irradiated in the solutions of Fe(III), Cu (II...
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Panfeng Zhu, Ignacio Sottorff, Tong Zhang and Brigitte Helmreich
Building runoff presents a good opportunity for water reuse in urban infrastructures; however, it is often polluted by biocides and heavy metals. In order to mitigate the pollution and improve water quality, we analysed the adsorption of heavy metals and...
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Stefania Gheorghe, Vasile Ion Iancu, Ioana Alexandra Ionescu, Florinela Pirvu, Iuliana Claudia Paun, Luoana Florentina Pascu and Florentina Laura Chiriac
Sunscreen compounds are one of the most toxic substances detected in the aqueous environment. However, these molecules are continuously utilized in a various range of products to provide protection against UV radiation. The removal of three sunscreen com...
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Eric Danso-Boateng, Melissa Fitzsimmons, Andrew B. Ross and Ted Mariner
Adsorption of methylene blue (MB) dye from an aqueous solution onto hydrochars produced from brown seaweed (Fucus Serratus) (FS-HC), coconut shell (CS-HC), and oak wood (Oak-HC) at different temperatures (200?250 °C) was investigated in a batch system. R...
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Luísa Cruz-Lopes, Morgana Macena, Bruno Esteves and Isabel Santos-Vieira
Four lignocellulosic materials (walnut shell, chestnut shell, pine wood and burnt pine wood) were analyzed as biosorbents to remove nickel ions in aqueous solution. The optimal pH condition was determined. Due to this, a range of different pHs (3.0 to 7....
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Milena Tadic, Miljan Bigovic, Dijana Djurovic, Martina Jakic, Irena Nikolic
Pág. 389 - 399
Electric Arc Furnace (EAF) slag containing larnite, gehlenite, wuestite, montcellite and calcite as the main crystal phases was alkali activated using the alkali activator prepared by the mixing of two solutions, sodium silicate and NaOH. Alkali Activate...
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