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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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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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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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Abeer S. Aloufi, Bahja Al Riyami, Mustafa A. Fawzy, Hatim M. Al-Yasi, Mostafa Koutb and Sedky H. A. Hassan
The release of heavy metals into the environment as a result of industrial and agricultural activities represents one of the century?s most significant issues. Cobalt is a hazardous metal that is employed in a variety of industries. In this study, respon...
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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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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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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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Zhen Ye, Xiaoming Ou, Juhua Huang and Yingpin Chen
A traditional total variation (TV) model for infrared image deblurring amid salt-and-pepper noise produces a severe staircase effect. A TV model with low-order overlapping group sparsity (LOGS) suppresses this effect; however, it considers only the prior...
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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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Hicham Yazid, Taoufiq Bouzid, El mountassir El mouchtari, Lahoucine Bahsis, Mamoune El Himri, Salah Rafqah and Mohammadine El haddad
Walnut shells were used to produce highly microporous activated carbon. The prepared activated walnut shells were found to be an efficient adsorbent for removing Cr(VI). The study used the response surface methodology to investigate four independent vari...
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Maria E. Peñafiel and Damián Flores
This work examines the adsorption in single- and multi-solute adsorption experiments of antibiotic and non-steroidal anti-inflammatory drugs, i.e., ciprofloxacin (CPX), sulfamethoxazole (SMX), ibuprofen (IBU), and diclofenac (DCF), onto sugarcane bagasse...
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Arestha Leo Lita, Endar Hidayat, Nur Maisarah Mohamad Sarbani, Hiroyuki Harada, Seiichiro Yonemura, Yoshiharu Mitoma, Herviyanti and Gusmini
Glyphosate is an herbicide that is usually used by farmers and is considered harmful to the environment in excess amounts. To address these issues, coffee-husk-biochar-loaded Fe3O4 (CHB- Fe3O4) was used as an adsorbent to remove glyphosate from water. CH...
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Hebatullah H. Farghal, Marianne Nebsen and Mayyada M. H. El-Sayed
In this work, we develop chitosan/xylan-coated magnetite (CsXM) nanoparticles as eco-friendly efficient adsorbents for the facile removal of contaminants from water. Characterization of CsXM using Fourier Transform Infra-Red (FTIR) Spectroscopy, Scanning...
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Yuyan Zhao, Hanwen Luan, Binghan Yang, Zhenghe Li, Meitong Song, Bing Li and Xiaodan Tang
The huge annual output of coal fly ash is harmful to the environment, but it is widely used because of its good adsorption potential. In this study, using coal fly ash as a raw material and sodium hydroxide as an activator, a novel adsorbent was synthesi...
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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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Zheng Liu, Sijie Zheng and Daolong Zhang
Fluoride pollution in water has been reported in many regions and countries. Adsorption is the most commonly used process for treating fluoride-containing water. For industrial applications, the treatment of a pollutant is normally performed in continuou...
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Steven Jing-Liang Xu, Kam-Chau Wu, Winnie Lam and Fred Wang-Fat Lee
Biosorption is an effective method for removing heavy metal ions from wastewater. In the current study, the biosorption capacity of a microalgae Prorocentrum triestinum strain AD1 was investigated for cadmium removal. The efficient biomass concentration ...
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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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