Article
Chemistry, Multidisciplinary
Linda Hevira, Zilfa, Rahmayeni, Joshua O. Ighalo, Hermansyah Aziz, Rahmiana Zein
Summary: This study demonstrated that using Terminalia catappa shells as biosorbent can effectively remove methylene blue from aqueous solutions, with a maximum adsorption capacity of 88.62 mg g(-1), and is applicable to real wastewater samples, which can be reused multiple times.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Engineering, Environmental
R. Sangeetha Piriya, Rajamani M. Jayabalakrishnan, M. Maheswari, Kovilpillai Boomiraj, Sadish Oumabady
Summary: This study focused on the activation of coconut-based agricultural wastes as an alternative adsorbent for removing pollutants from industrial effluents. The activated carbon exhibited a high specific surface area and stability, showing significant dye adsorption for malachite green removal. The experimental data fit the Freundlich isotherm model well, indicating the potential of the carbon material as an alternative energy source.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Environmental
Jiwon Chung, Neha Sharma, Minyoung Kim, Kyusik Yun
Summary: The study investigated the adsorption of methylene blue from wastewaters using activated carbon derived from sucrose and melamine. The synthesized adsorbent showed high specific surface area and fast adsorption rate, making it effective in removing methylene blue from wastewater.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Polymer Science
David Choque-Quispe, Carlos A. Ligarda-Samanez, Betsy S. Ramos-Pacheco, Aydee M. Solano-Reynoso, Justiniano Quispe-Marcatoma, Yudith Choque-Quispe, Diego E. Peralta-Guevara, Edgar L. Martinez-Huaman, Odilon Correa-Cuba, Mery Luz Masco-Arriola, Washington Julio Lechuga-Canal, Fred Montalvo Amanca
Summary: This study introduced a novel composite material for the removal of heavy metals from wastewater. The composite, made of activated nanoclay and hydrocolloid, demonstrated a high adsorption capacity and chelating ability. Experimental results showed that the composite achieved a removal percentage of over 99% for lead, and also exhibited good performance in removing arsenic, cadmium, and zinc.
Article
Engineering, Chemical
Bhaswati Devi, Netra Prova Baruah, Anasuya Bharadwaj, Arundhuti Devi
Summary: Elimination of excessive fluoride from the environment is a serious issue nowadays. In this study, a novel activated carbon supported tetrametallic oxide hybrid system was developed for fluoride removal. The adsorption performance of the system was investigated and it was found to follow Freundlich isotherm and pseudo-second order kinetics, indicating both physical and chemical adsorption mechanisms.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Engineering, Chemical
Syeda Saba Fatima, Azry Borhan, Muhammad Ayoub, Noraini Abd Ghani
Summary: This study evaluated the equilibrium and kinetics properties of CO2 adsorption on two RSS-derived AC samples. The Freundlich model accurately described the experimental results, indicating a heterogeneous phase for the adsorption process. The pseudo-second order model was found to be the most suitable for both blank and IL-functionalized AC.
Article
Environmental Sciences
Ziming Zhao, Wenjun Sun, Madhumita B. Ray
Summary: In this study, the relative removal efficiency of AOM and humic acid by granular activated carbon (GAC) adsorption was determined through batch experiments. The adsorption data fit Freundlich isotherm models and pseudo-second order kinetic models well. Thermodynamic parameters indicated that GAC adsorption for DOM removal was endothermic and spontaneous.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Rana Malhas, Taiyeba Alamgir, Abrar Benhusain, Nadeen Alotaibi, Noor Alhaddad
Summary: In this study, the effects of various process parameters on the removal of oil from oily wastewater using Fe3O4 magnetic nanoparticles were investigated. The results showed that Fe3O4 nanoparticles are highly effective and reusable for oil removal.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
D. Prabu, P. Senthil Kumar, B. Senthil Rathi, S. Sathish, K. Vijai Anand, J. Aravind Kumar, Osama B. Mohammed, P. Silambarasan
Summary: This study established the potential of Fe3O4-BAC adsorbent by coating activated carbon with a nano adsorbent. The adsorbent exhibited superior magnetic behavior, high adsorption capacity, and removal efficiency under certain conditions.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Sourav Maity, Soumyashree Nanda, Angana Sarkar
Summary: Colocasia esculenta stem biomass showed efficient biosorption of arsenate, chromium, and cadmium, but exhibited low adsorption of copper, nickel, and zinc. The biosorption process was spontaneous and endothermic in nature, making it a potentially cost-effective method for treating effluents contaminated with trace metals.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Energy & Fuels
Seyyed Alireza Mousavi, Bahram Kamarehie, Ali Almasi, Mohammad Darvishmotevalli, Mehdi Salari, Maryam Moradnia, Faramarz Azimi, Mansour Ghaderpoori, Zhaleh Neyazi, Mohammad Amin Karami
Summary: In this study, activated carbon prepared from stalk corn was proven to be an effective and economical adsorbent for removing Rhodamine B dye from aqueous solutions. The optimal conditions for adsorption were found to be a pH of 3 and an adsorbent dosage of 2.5 g L-1, with the Freundlich isotherm model fitting well with the experimental data. The maximum adsorption capacity achieved was 5.6 mg g(-1), and the adsorption of Rhodamine B followed pseudo-second-order kinetics.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Environmental Sciences
Charuta Waghmare, Sujesh Ghodmare, Khalid Ansari, Mohammad Hadi Dehghani, Mohammad Amir Khan, Mohd Abul Hasan, Saiful Islam, Nadeem A. Khan, Sasan Zahmatkesh
Summary: This study investigates the effectiveness of H3PO4 activated papaya skin/peels (PSPAC) for the adsorption of methylene blue (MB) dye. The optimal conditions for MB removal are determined, and the extraction efficiency is validated using response surface methodology. The study also examines the thermodynamic parameters and regeneration capability of the PSPAC adsorbent. The results demonstrate that PSPAC is a sustainable and effective biosorbent for the removal of cationic dyes.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Environmental
Laishram Saya, W. Rameshwor Singh, Sunita Hooda
Summary: Given the large amount of harmful pharmaceuticals being released into the water stream, it is crucial to eradicate or reduce these chemicals to a minimum permissible limit. This study reports the fabrication of a magnetic guar gum graphene oxide nano-composite (mGG/GO NC) for the adsorption of ciprofloxacin from wastewater. Various techniques were used to characterize the guar gum and the nanocomposite, and it was found that the adsorption process followed the pseudo second order model and Langmuir isotherm model. The nanocomposite exhibited high adsorption capacity and recyclability, potentially due to a synergistic effect of multiple interactions in the adsorption mechanism.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Agronomy
Monika Chaudhary, Suhas, Sarita Kushwaha, Shubham Chaudhary, Inderjeet Tyagi, Mohammad Hadi Dehghani, Baskaran Stephen Inbaraj, Joanna Goscianska, Minaxi Sharma
Summary: This study investigates the importance of the interaction and position of the nitro group in the adsorption of 2-nitrophenol (2-NP), 4-nitrophenol (4-NP), and phenol by demineralized kraft lignin activated carbon (DKLAAC). The results show that the adsorption follows the order 2-NP > 4-NP > phenol, and both solubility and donor-acceptor complex mechanism play a significant role in the adsorption process. The experimental data fits well with the Langmuir adsorption isotherm and pseudo-second order kinetic models. The temperature study reveals that the adsorption process is endothermic and spontaneous with high affinity between DKLAAC and phenols.
Article
Green & Sustainable Science & Technology
Sandra Pioquinto Garcia, Luis Angel Garza Rodriguez, Diana Bustos Martinez, Felipe de Jesus Cerino Cordova, Eduardo Soto Regalado, Sylvain Giraudet, Nancy Elizabeth Davila Guzman
Summary: The study investigates the potential use of raw and expanded perlite as low-cost adsorbents for biogas purification, finding that expanded perlite has moderate adsorption capacity and follows Linear-Driving Force model in adsorption kinetics.
JOURNAL OF CLEANER PRODUCTION
(2021)