Article
Green & Sustainable Science & Technology
Mohini Singh, Mohd. Rayaz, Arti Rao
Summary: This study explores the potential of Prosopis cineraria leaf powder (PCLP) as a biosorbent for removing heavy metal ions (HMIs) from aqueous solutions. The results demonstrate that PCLP follows Langmuir isotherm for adsorption and pseudo-second-order (PSO) model for kinetics. Nonlinear regression analysis shows better fitting for equilibrium modeling, while the PSO model performs comparably to linear analysis for kinetics. PCLP shows promise as an environmentally friendly and cost-effective biosorbent for removing toxic HMIs.
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2023)
Article
Multidisciplinary Sciences
Jutamas Pantab, Kanuennit Sirisom, Jittima Charoenpanich
Summary: This study describes a new strain of Staphylococcus sciuri, which can effectively remove Cr(VI) from water under high temperature and acidic conditions. The adsorption process of the bacterium follows a pseudo-second order kinetic model and Langmuir isotherm. The bacterium binds Cr(VI) using carbon and oxygen functional groups.
Article
Green & Sustainable Science & Technology
Mayasar I. Al-Zaban, Nada K. Alharbi, Fawziah M. Albarakaty, Sarah Alharthi, Sedky H. A. Hassan, Mustafa A. Fawzy
Summary: This study investigated the biosorption of methyl violet 2B dye onto brown seaweed Cystoseira tamariscifolia biomass. The optimal biosorption conditions were determined and the data were interpreted using thermodynamic, isothermal, and kinetic models. The results suggest that C. tamariscifolia is a sustainable biosorbent for dye removal.
Article
Environmental Sciences
Kaiyan Zhou, Yulu Zhou, Hongbo Zhou, Haina Cheng, Gang Xu
Summary: This study explores the biosorption behavior of waste P.pastoris cells for Cu(II), Ni(II), and Cr(VI) in aqueous solutions. The results show that the waste cells have effective biosorption rates for the removal of these metals, with Cu(II) having the highest adsorption capacity. The cells also exhibit good regeneration and reusability.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Environmental Sciences
Alireza Mohammadzadeh, Mustafa M. Kadhim, Talib Zeedan Taban, Omirserik Baigenzhenov, Andrei Ivanets, Basant Lal, Naveen Kumar, Ahmad Hosseini-Bandegharaei
Summary: In this study, the adsorption properties of Enterobacter cloacae towards uranium were investigated. The results showed that Enterobacter cloacae has a high affinity for fast and selective biosorption of uranium ions. Additionally, a composite material of Enterobacter cloacae/carbon nanotube was synthesized and utilized for preconcentration and determination of uranium, demonstrating low detection limit, high precision, and good accuracy.
Article
Environmental Sciences
Gokulan Ravindiran, Hemavathi Sundaram, Ezhilkumar Marimuthu Rajendran, Saravanan Ramasamy, Al-Zaqri Nabil, Boshaala Ahmed
Summary: Textile industries are a major contributor to water pollution due to high water consumption and wastewater emissions. This study investigated the adsorption behavior of AB210 and AB7 azo dyes using activated sewage sludge biochar adsorbent. Batch studies determined optimum adsorption parameters, and isotherm and kinetic studies were conducted to evaluate the adsorption process. The results showed a good fit with the pseudo second order kinetic model (R2 > 0.96). Thermodynamic studies revealed the nature of dye uptake and the pollutants were safely disposed of through landfilling. The study achieved high removal rates of 99.32% for AB210 and 94.28% for AB7 in synthetic solutions.
Article
Chemistry, Analytical
Dianxin Li, Yiqing Yang, Peng Zhang, Siyou Xiao, Hongyang Liu, Junwei Yang
Summary: The study on Azolla imbircata dry powder showed that it has a high biosorption capacity for U(VI) under specific conditions. The biosorption process followed pseudo-second-order kinetics and Langmuir isotherm, indicating monolayer chemisorption. Thermodynamic results indicated that the adsorption process was spontaneous and exothermic.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2021)
Article
Engineering, Environmental
Olwen Stagg, Katherine Morris, Andy Lam, Alexandra Navrotsky, Jesus M. Velazquez, Bianca Schacherl, Tonya Vitova, Joerg Rothe, Jurij Galanzew, Anke Neumann, Paul Lythgoe, Liam Abrahamsen-Mills, Samuel Shaw
Summary: The legacy of nuclear activities has created a global issue of radioactive waste, with uranium playing a crucial role in contamination scenarios. Iron (oxyhydr)oxides could potentially act as secondary barriers to radionuclide migration, but their long-term stability and interaction with biogeochemical processes remain largely unknown. The study showed that U(VI) incorporated into goethite remained stable as U(V) even under iron-reducing conditions, indicating the potential for iron (oxyhydr)oxides to play a role in mitigating radionuclide migration in the environment.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Sheetal Kumari, Nitin Kumar Agrawal, Animesh Agarwal, Anil Kumar, Neeraj Malik, Dinesh Goyal, Vishnu D. Rajput, Tatiana Minkina, Pinki Sharma, Manoj Chandra Garg
Summary: Traditional freshwater sources have been over-abstracted, resulting in a worldwide water scarcity crisis. An investigation found that industrial wastewater samples contained high concentrations of Zn2+ and Pb2+, which are known to be highly harmful to humans and wildlife. This study used Streptomyces sp. as a biosorbent to effectively extract Zn2+ and Pb2+ from single and binary metal aqueous solutions. The biosorbent demonstrated high adsorption capacity and followed Freundlich isotherm, making it a potential alternative for removing Zn2+ and Pb2+ from aqueous solutions.
Article
Engineering, Chemical
Shengxia Duan, Jian Liu, Lishun Wu, Feng Lin, Xiangyan Meng, Ke Tang, Jiaxing Li
Summary: Porous dual metallic M/Co(II) zeolitic imidazolate framework has been successfully synthesized into nanoparticles at room temperature. By characterizing the obtained samples, it was found that they have high crystal purity, functional groups, and porous structure. Furthermore, changing the type of doped metal ions in the framework affects its capacity for U(VI) immobilization. The possible mechanism for U(VI) immobilization was also explored.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Jose Alejandro Ricardo-Garcia, Yusleydi Enamorado-Horrutiner, Gerardo Rodriguez-Fuentes, Mario Simeon Pomares-Alfonso, Margarita Edelia Villanueva-Tagle
Summary: This study aimed to investigate the use of clinoptilolite zeolite as a sorbent for Ni(II) from aqueous solutions. The results showed that NaCl-treated zeolite had the highest sorption capacity and potential for improving detection limits and remediation of Ni-contaminated waters.
MICROCHEMICAL JOURNAL
(2021)
Article
Environmental Sciences
Xinxin Chen, Siheng Cai, Nan Zhang, Jieqiu Yang, Tangjian Peng, Fei Yang
Summary: Heavy metal pollution poses a serious threat to the environment and human health. Biosorption, a cost-effective and environmentally friendly method, has gained worldwide attention. This study investigates the biosorption of U(VI) onto live and dead cells of a Sphingopyxis strain YF1. The results show that both live and dead cells have good adsorption performance, with the maximal adsorption capacities of U(VI) being 140.7 mg g(-1) and 205.7 mg g(-1), respectively. The mechanisms of U(VI) adsorption by Sphingopyxis sp. YF1 were also revealed.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Noor Zulfiqar, Monireh Shariatipour, Fawad Inam
Summary: In this research, magnetic nanotechnology and a green chemistry approach were used to develop eco-friendly bioadsorbents for removing heavy metals from water. Extensive optimization and equilibrium and kinetic studies were conducted to understand the adsorption behavior. The magnetite/corncob nanocomposite proved to be the most effective in removing heavy metals due to its environmental friendliness, larger surface area, reusability, and cost-effectiveness.
NANOSCALE ADVANCES
(2023)
Article
Environmental Sciences
Sajad-Ur-Rehman Beig, Shakeel Ahmad Shah
Summary: This study reports the use of waste fungal biomass for the detoxification and removal of chromium ions. The treated waste fungal biomass showed a high remediation effectiveness of 99.66% for chromium ions under optimal conditions. The generated waste fungal biomass adsorbent also exhibited significant recycling potential.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2023)
Article
Environmental Sciences
Khairia M. Al-Qahtani, Mohamed H. H. Ali, Mohamed S. Abdelkarim, Afify D. G. Al-Afify
Summary: Two extremophilic biosorbents were used to successfully remove Cu(II), Ni(II), and Pb(II) from aqueous solutions. The biosorbents showed high affinity for these metal ions, with removal rates ranging from 73.6% to 100%, and the removal order was Pb(II) > Cu(II) > Ni(II). Both Langmuir and Freundlich models were suitable for describing the adsorption process, with the pseudo-second-order reaction model being more accurate than the pseudo-first-order model kinetically.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
