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Angelo Fenti, Simeone Chianese, Pasquale Iovino, Dino Musmarra and Stefano Salvestrini
Hexavalent chromium (Cr(VI)) in water systems is a major hazard for living organisms, including humans. The most popular technology currently used to remove Cr(VI) from polluted water is sorption for its effectiveness, ease of use, low cost and environme...
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Hai Nguyen Tran
Initial periods of adsorption kinetics play an important role in estimating the initial adsorption rate and rate constant of an adsorption process. Several adsorption processes rapidly occur, and the experimental data of adsorption kinetics under the ini...
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Fan Lin, Yingpin Chen, Yuqun Chen and Fei Yu
Image deblurring under the background of impulse noise is a typically ill-posed inverse problem which attracted great attention in the fields of image processing and computer vision. The fast total variation deconvolution (FTVd) algorithm proved to be an...
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Edidiong D. Asuquo, Alastair D. Martin and Petrus Nzerem
An agricultural residue, white yam (Dioscorea rotundata) tuber peel (YTBS), was used for the removal of Cd(II) ion from an aqueous solution using a batch method. The adsorbent was characterized using FTIR, TGA, SEM, EDX, N2 BET, XRD, and XRF. The optimiz...
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Fatima Elayadi, Mounia Achak, Wafaa Boumya, Sabah Elamraoui, Noureddine Barka, Edvina Lamy, Nadia Beniich and Chakib El Adlouni
This work highlights the elimination of chemical oxygen demand (COD) from olive mill wastewater using sugarcane bagasse. A 25-1 fractional factorial design of experiments was used to obtain the optimum conditions for each parameter that influence the ads...
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Angel Villabona-Ortíz, Rodrigo Ortega-Toro and Candelaria Tejada-Tovar
Surface modification can improve the adsorption capacity of biochar. Biochar was produced from corn stalks (Zea mays) by pyrolysis at 520 °C, activated with sulfuric acid (H2SO4) using impregnation ratios of biomass weight: volume 1:2 (B 1:2) and 1:3 (B ...
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Jianlou Xu, Yuying Guo, Yan Hao and Leigang Huo
In order to better decompose the images and protect their edges, in this paper, we proposed a coupled variational system consisting of two steps. The first step, an improved weighted variational model is introduced to obtain the cartoon and texture. Usin...
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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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Andri Cahyo Kumoro, Ratnawati Ratnawati, Diah Susetyo Retnowati
Pág. 236 - 245
The coupled hydrogen peroxide/ultraviolet irradiation (H2O2/UV) process as one of environmentally friendly advanced oxidation processes (AOPs) has been successfully applied in the oxidation of corn starch. The aim of this work was to develop a simplified...
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B.M.W.P.K. Amarasinghe
Coir pith was used as an alternative to commonly available adsorbents for heavy metal ion removal from aqueous solutions. Batch and fixed bed column experiments were conducted to study adsorption characteristics of Cd and Pb onto coir pith. Coir pith is ...
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Ali Gmran Vagzogullar, Mehmet Ugurlu, Gbrahim Kula
Pág. 19 - 31
In our study adsorption of Hg+2 ions from water solutions on Sepiolite (Sep) and Modified Sepiolite (MSep) with cationic surfactants namely cetyl trimethyl ammonium bromide CTAB was investigated. Different parameters were used to investigate such as cont...
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Tomasz Józwiak and Urszula Filipkowska
This study aimed to identify the possibility of using rapeseed husks (RH) as an unconventional sorbent for removing acidic (AR18, AY23) and basic (BR46, BV10) dyes from aqueous solutions. Its scope included, i.a.: sorbent characterization (FTIR, pHPZC), ...
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Patience Mapule Thabede
Pharmaceutical pollutants in water pose a serious environmental challenge. This research compared the adsorption capacity of mandarin orange peels (MOP) and activated carbon mandarin orange peels (AC-MOP) to adsorb methylene blue (MB) and Ibuprofen (IBF)...
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Candelaria Tejada-Tovar, Ángel Villabona-Ortíz, Ángel Darío González-Delgado, Adriana Herrera-Barros and Rodrigo Ortega-Toro
Water treatment alternatives such as adsorption using agricultural residues are currently being studied to eliminate pollutants that cause eutrophication in water bodies, avoiding the alteration of aquatic ecosystems. In this work, two bio-adsorbents wer...
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Cristina E. Almeida-Naranjo, Elvia Gallegos, Elizabeth Domínguez, Paola Gutiérrez, Vladimir Valle, Alex Darío Aguilar, Alexis Debut and Catalina Vasco
Oil palm empty fruit bunch fibers (OPEFBF), in three size ranges (small: 250?450 µm, medium: 450?600 µm, large: 600?800 µm), were investigated as a filter-bed material in biofilters for the removal of organic matter and nutrients. After saturation, these...
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Ziyang Zhang, Xiao Jin, Hongrui Chen, Xiaoran Zhang, Chaohong Tan, Xiaojuan Bai and Yongwei Gong
This study aimed to enhance the efficiency of construction waste bricks (PRBPs) in removing diclofenac (DFC) by preparing surfactant-modified waste bricks (CCBPs) as adsorbents. The properties of the adsorbents were analyzed, and the parameters related t...
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Nikita Yushin, Inga Zinicovscaia, Liliana Cepoi, Tatiana Chiriac, Ludmila Rudi and Dmitrii Grozdov
The biosorption and bioaccumulation of gadolinium by Arthospira platensis in batch experiments was examined. In biosorption experiments, the influence of pH, gadolinium concentration, time of contact and temperature on Arthospira platensis sorption capac...
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Alexandra Gordon, Mark C. Leaper, Herman Potgieter, Darlington Ashiegbu and Vusumuzi Sibanda
The aim of the study was to investigate the application of photocatalytic advanced oxidation (PAO) for the treatment of water contaminated with dark humic material from fynbos biome plants, which cannot be treated by conventional methods. The study used ...
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Suphapan Satchawan, Pongthipun Phuengphai, Acharaporn Ratanamanee and Nonglak Meethong
This research focused on the removal of Fe(III) ions from an aqueous solution of wastewater through an adsorption process using biosorbents of natural palmyra palm fruit fibres (N?PPF) and chemically modified palmyra palm fruit fibres (C?PPF). BET was us...
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