Article
Green & Sustainable Science & Technology
Shuainan Ni, Hepeng Zhang, Chenhao Liu, Yun Gao, Hao Su, Xiaoqi Sun
Summary: This study aims to improve the extraction process for efficient and clean extraction of rare earths from ion-absorbed rare earth deposits. The extraction-precipitation strategy based on long-chain saturated fatty acids as precipitants successfully recovered rare earths from the leach solutions. This strategy offers advantages in terms of low cost, simplicity, high efficiency, sustainability, and low energy consumption.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Multidisciplinary
Aditya Ranjan Ray, Sujata Mishra
Summary: Modern scientific progress has made rare earth elements more important due to their specific chemical and physical properties. Proper handling and recovery of valuable products like rare earths will address environmental and societal issues caused by mining and industrial waste.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Review
Environmental Sciences
Erkang Feng, Dongjing Gao, Yutong Wang, Fengshan Yu, Chunxia Wang, Jiawei Wen, Yangqin Gao, Guoyong Huang, Shengming Xu
Summary: The exploitation and utilization of secondary resources have social benefits such as resource conservation, pollution reduction, and cost reduction in production. However, less than 20% of titanium secondary resources are currently recyclable, and there is limited research on titanium secondary resource recovery. This article provides an overview of the global distribution of titanium resources, market supply and demand, and technical studies on titanium extraction from different titanium-bearing secondary slags. It compares various methods of secondary resource recovery, points out the future development direction of titanium recycling, and emphasizes the need for attention to lithium titanate waste recycling.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Chemical
Jamal Ait Brahim, Sara Ait Hak, Brahim Achiou, Rachid Boulif, Redouane Beniazza, Rachid Benhida
Summary: This review focuses on the kinetics of extracting REEs from secondary resources, providing insights into leaching kinetics and mechanisms. The study reviews various kinetics approaches, models, and parameters influencing kinetics. Comparative analysis of different REEs secondary resources is also conducted.
MINERALS ENGINEERING
(2022)
Article
Engineering, Environmental
S. Pavon, T. Lorenz, A. Fortuny, A. M. Sastre, M. Bertau
Summary: The processing and recovery of end-of-life products containing rare earth elements (REE) have become increasingly important, with solid-state chlorination proving to be an efficient and cost-effective technology. By optimizing the solid-state chlorination process, it is possible to achieve high efficiency and selective recovery of rare earth elements.
Article
Green & Sustainable Science & Technology
Xingyu Liu, Lan Huang, Zhaogang Liu, Dongliang Zhang, Kai Gao, Mei Li
Summary: The process introduced in the passage is a novel, clean, closed-loop rare earth recycling technology that achieves efficient rare earth element recovery without emitting pollutants, generating economic value, and treating wastewater through internal circulation for resource recovery.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Green & Sustainable Science & Technology
Sara Ait Hak, Anasse Sraidi, Khaoula Khaless, Rachid Benhida
Summary: Phosphogypsum (PG), a primary by-product of wet process phosphoric acid production, presents challenges to the fertilizer industry. This study explores the leaching of rare earth elements (REEs) from PG and establishes a strong correlation between REEs concentration and leaching efficiency. Nitric acid and hydrochloric acid are effective leaching agents, with calcium sulfate solubility playing a pivotal role. Kinetics investigations indicate that the diffusion of REEs through the product layer is the rate-controlling step.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Geochemistry & Geophysics
Shailee Bhattacharya, Vikas Agrawal, Shikha Sharma
Summary: This study investigated the distribution and enrichment of rare earth elements (REYs) in Marcellus and Haynesville Shale samples in the US. The results showed that REYs in these shales are primarily contributed by carbonate and siliciclastic inputs, and the low extraction efficiency may be due to the high amount of refractory aluminosilicate/clay fraction in the samples.
Article
Green & Sustainable Science & Technology
Chen Yu-Ke, Muhammad Shahid Hassan, Rukhsana Kalim, Haider Mahmood, Noman Arshed, Muhammad Salman
Summary: A high proportion of nonrenewable energy in total energy consumption is causing severe environmental issues, prompting the need for environmentally friendly renewable energy. This study investigates the asymmetric influence of clean and unclean energy consumption on environmental quality in environmentally poor economies, finding that clean energy has a U-shaped impact on transport-based environmental quality and an inverted U-shaped impact on industry-based environmental quality. Conversely, unclean energy has an inverted U-shaped influence on transport-based environmental quality and a U-shaped impact on industry-based environmental quality in the selected economies.
Article
Chemistry, Multidisciplinary
Tongyu Liu, Alexander S. Ivanov, Ilja Popovs, Santa Jansone-Popova, De-en Jiang
Summary: Preorganized ligands like bis-lactam-1,10-phenanthroline (BLPhen) exhibit unique selectivity trends in the lanthanide series, indicating the synergistic effects of N and O donors in lanthanide complexation. Replacing amide groups with N-oxide functionality opens the possibility for new ligand structures with improved selectivities. Computational analysis of mixed N,O-donor ligands containing pyridinic N and N-oxide groups reveals three promising ligands for selectively separating trivalent lanthanides. Conjugation, complex geometry, and electron accumulations on the N-oxide groups' O-donors are important factors dictating selectivity trends.
Article
Engineering, Chemical
Jong Hyuk Jeon, Ho-Sung Yoon, Chul-Joo Kim, Kyeong Woo Chung, Rajesh Kumar Jyothi
Summary: An environmentally friendly process was investigated to extract and separate rare earth elements from waste permanent magnets. Different solvent extraction methods were tested to optimize the extraction system, with Cyanex 272 identified as the most effective reagent for recovery and potential separation between REEs. Experimental factors and conditions were studied to maximize rare earth enrichment while effectively separating them.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Lina Qiu, Jiandi Li, Weiwei Zhang, Aijun Gong, Xiaotao Yuan, Yang Liu
Summary: The study investigated the extraction and back-extraction effects of TODGA on various rare earth elements, achieving optimal experimental conditions by adjusting parameters. The results showed that TODGA had good separation effects on La(III), Ce(III), Pr(III), Nd(III), and mixed rare earths.
Review
Engineering, Environmental
Yufeng Wu, Minwei Song, Qijun Zhang, Wei Wang
Summary: The global demand for electronic products is increasing, leading to a growing demand for rare-earth polishing powder. China dominates the global rare-earth market but faces challenges with export quotas. As a result, recycling rare-earth resources has become a hot topic in global research.
RESOURCES CONSERVATION AND RECYCLING
(2021)
Article
Thermodynamics
Aleksandar M. Mitrasinovic
Summary: There is a global consensus to transition from fossil fuels to renewable energy sources. The photovoltaic industry has shifted from a subsidized to profitable sector, with a focus on using materials with low environmental impact for a sustainable transition towards clean renewable energy.
Article
Engineering, Chemical
Z. Hammache, S. Bensaadi, Y. Berbar, N. Audebrand, A. Szymczyk, M. Amara
Summary: The recovery of Nd and Pr from end-of-life computer hard disk drives using diffusion dialysis shows great potential, with up to 15% of boron extraction achieved in 6 hours. The membrane selectivity between boron and REEs depends on membrane structure, water uptake ability, and surface charge, as well as the composition of the leachate. The CTA/PEI/TDDA membrane exhibited the highest B/REE selectivity factors, indicating its effectiveness in separating boron from Nd and Pr.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Raghaba Sahu, Ranjan K. Mohapatra, Saud I. Al-Resayes, Debadutta Das, Pankaj K. Parhi, Shakilur Rahman, Lucia Pintilie, Manjeet Kumar, Mohammad Azam, Azaj Ansari
Summary: This study explores a novel synthesis route for crinipellin and investigates its pharmacological effects, suggesting the potential of these compounds as therapeutic agents for various diseases.
JOURNAL OF SAUDI CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Taghreed H. Al-Noor, Ranjan K. Mohapatra, Mohammad Azam, Lekaa K. Abdul Karim, Pranab K. Mohapatra, Abeer A. Ibrahim, Pankaj K. Parhi, Ganesh C. Dash, Marei M. El-ajaily, Saud Al-Resayes, Mukesh K. Raval, Lucia Pintilie
Summary: A novel series of mixed-ligand complexes were synthesized and characterized, showing significant antimicrobial activity. DFT calculations and molecular docking analysis provided insights into the structure and potential drug-like properties of the complexes. (C) 2020 Elsevier B.V. All rights reserved.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Multidisciplinary
Umakanta Behera, Shaswat Kumar Das, Devi Prasad Mishra, Pankaj Kumar Parhi, Debadutta Das
Summary: This study evaluated the transportation, leaching, and stabilization ability of novel saponin extracted from Acacia auriculiformis fruits. The addition of a nonionic natural surfactant saponin improved the wettability of FA particles and the stabilization of FAS system. Incorporation of sodium silicate in FAS was found to be beneficial for settling and stabilization, facilitating the sustainable disposal of FA.
Article
Microbiology
Sachin Mahanta, P. S. Sivakumar, Pankaj Parhi, Ranjan K. Mohapatra, Gargi Dey, Smita H. Panda, Srijita Sireswar, Sandeep K. Panda
Summary: The study aims to develop a co-fermentation process using Saccharomyces pastorianus and Lactobacillus plantarum to produce a sour beer similar to Belgium sour beer. Statistical optimization was conducted to determine fermentation conditions, and the microbial dynamics and volatile compounds were studied during fermentation.
BRAZILIAN JOURNAL OF MICROBIOLOGY
(2022)
Article
Environmental Sciences
Tanaswini Patra, Ashutosh Mohanty, Lovjeet Singh, Sthitiprajna Muduli, Pankaj K. Parhi, Tapas Ranjan Sahoo
Summary: In this study, green synthesis of manganese oxide nanoparticles using Acacia Concinna fruit extract was conducted for the removal of reactive dye. The morphology of the nanoparticles was affected by the calcination temperature, with α-MnO2 and Mn3O4 nanoparticles synthesized at different temperatures. Various characterization techniques were employed to analyze the nanoparticles. The adsorption efficiency of MnO2 nanoparticles for Reactive Blue 21 dye was found to be 98% at pH 3.0, following pseudo second order kinetics and fitting well with the Freundlich isotherm model.
Article
Energy & Fuels
Umakanta Behera, Shaswat Kumar Das, Devi Prasad Mishra, Pankaj Kumar Parhi, Debadutta Das
Summary: This study aimed to investigate the stabilization and transportation behavior of fly ash slurry (FAS) using a mixture of natural and synthetic surfactants. The optimal dosages of surfactants for both leaching and transportation of FAS were found to be 0.009 g/cc of saponin and 0.008 g/cc of SDS. The results suggested that the addition of synthetic surfactant SDS to natural surfactant S. Laurifolia enhanced the wettability of fly ash particles.
INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION
(2022)
Review
Engineering, Environmental
Bhagyashree Biswal, Aritra Kumar Dan, Atanu Sengupta, Manoja Das, Birendra Kumar Bindhani, Debadutta Das, Pankaj Kumar Parhi
Summary: This review discusses the role of degumming agents in the removal of sericin, as well as the use of silk fibroin in tissue engineering. Various factors, such as surfactants, degumming time, and temperature, affect the removal of sericin from silk. Silk fibroin, a natural protein-based polymer, is a promising biomaterial for tissue engineering due to its physiochemical characteristics and biocompatibility.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Environmental Sciences
P. K. Parhi, P. K. Misra
Summary: Solvent extraction separation of molybdenum from a sulphate leach solution was carried out using N-Methyl-N, N, N-tri-octyl-ammonium chloride. The study investigated the extraction conditions, including pH, extractant concentration, temperature, and phase ratio, to achieve selective and enriched extraction of molybdenum. The results showed successful extraction and stripping of molybdenum using the proposed conditions, leading to the precipitation of high purity MoO3.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Review
Biotechnology & Applied Microbiology
Snehasish Mishra, Puneet Kumar Singh, Ritesh Pattnaik, Subrat Kumar, Sanjay Kumar Ojha, Haragobinda Srichandan, Pankaj Kumar Parhi, Rajesh Kumar Jyothi, Prakash Kumar Sarangi
Summary: Cellulose nanocomposites have huge potential in the fields of medicine and environment. However, there is still uncertainty regarding the molecular synthesis of cellulose and the arrangement of cellulose fibrils. Further research is needed to understand nanocellulose dispersion, fibrillar network disintegration, and the organic/polymer chemistry. The bacterial cellulose biosynthesis mechanism and the use of low-cost substrates for its production are also areas that require more investigation.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Physical
Aritra Kumar Dan, Bhagyashree Biswal, Manoja Das, Sagarika Parida, Pankaj Kumar Parhi, Debadutta Das
Summary: Silk fibroin, obtained from silkworms, has been recognized for its significant biomedical applications. A sustainable and cleaner method of extracting silk fibroin from muga silk has been studied using the bio-surfactant saponin from Acacia concinna. The degumming efficacy was examined and the extracted silk fibroin was found to have low toxicity, making it potentially suitable for medical applications.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
A. S. Mohapatra, S. S. Behera, S. K. Tripathy, P. K. Parhi, K. Sanjay
Summary: This study investigates the solvent extraction separation of Mo from the sulphate mediated spent catalyst Co-Mo/Al2O3 leached liquor using noble bi-functional ionic liquids (BILs). The comparative extraction behavior of Mo with two BILs, R4ND and R4NCY, was systematically studied. The results show that both BILs can selectively separate Mo at acidic pH ranges, with R4NCY demonstrating more efficient extraction. Stripping of Mo-loaded-R4NCY also shows promising results. The synthesized ILs were confirmed to have high purity through NMR analysis.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Pankaj Kumar Parhi, Pramila Kumari Misra, Rajesh Kumar Jyothi
Summary: The Nd-Fe-B permanent magnet was processed using a hydrometallurgical approach to recover neodymium. The leaching kinetics of neodymium using dilute HCl was studied, and the process optimization was investigated. The obtained leach liquor was used for the recovery of Fe2O3 using slaked lime, and a bifunctional ionic liquid was introduced for the extraction of REMs (Nd and Pr) from the solution. The enriched neodymium oxalate was obtained through calcination of the stripping circuit product.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Review
Engineering, Chemical
Tonmoy Kundu, Swagat S. Rath, Surya Kanta Das, Pankaj Kumar Parhi, Shivakumar I. Angadi
Summary: The demand for lithium in the energy sector is rapidly increasing and pegmatites are the second major source of lithium. This article summarizes the geological occurrences of spodumene-bearing pegmatites worldwide and comprehensively reviews various techniques for lithium recovery from pegmatites. It evaluates the widely adopted techniques of Dense Media Separation (DMS) and froth flotation for spodumene beneficiation, as well as the applications of magnetic separation and ore sorting. The different pyro and hydrometallurgical routes for processing spodumene are thoroughly reviewed, as the beneficiated spodumene concentrate needs further treatment to generate marketable lithium-based salts.
Article
Environmental Sciences
Chinmaya Kumar Mohanty, Saroj Sekhar Behera, Suraj Kumar Tripathy, Pankaj Kumar Parhi
Summary: The application of organic acids for the extraction of Cu and Cr from Cu-Cr spent catalyst was investigated. Acetic acid showed the most significant effect on the dissolution of both metals. The optimized conditions resulted in the extraction of approximately 99.99% Cu and 62% Cr.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Oncology
Haragobinda Srichandan, Puneet Kumar Singh, Pankaj Kumar Parhi, Pratikhya Mohanty, Tapan Kumar Adhya, Ritesh Pattnaik, Snehasish Mishra, Pranab Kumar Hota
Summary: Environmental pollution is a concerning issue, especially in the Asia-Pacific region. Physical, chemical, and biological strategies are commonly used to remove pollutants from water, soil, and air. This review provides detailed information on the mechanisms, applications, drawbacks, and future prospects of these strategies for pollution abatement.
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART C-TOXICOLOGY AND CARCINOGENESIS
(2022)
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)
