Article
Energy & Fuels
Kuo Zeng, Xinyi Yang, Yingpu Xie, Haiping Yang, Jun Li, Dian Zhong, Hongyang Zuo, Ange Nzihou, YouJian Zhu, Hanping Chen
Summary: This study investigated the use of variant molten salts in biomass pyrolysis, finding that carbonates can significantly improve the gas composition and quality of biomass pyrolysis products, as well as enhance the quality of bio-oil and char produced. The results also showed a shifting in molten salt composition and interaction between carbonates and char during biomass pyrolysis, affecting the yield of CO in pyrolysis gas and limiting the sustainable use of the system.
Article
Energy & Fuels
Hua Tang, Hongyun Hu, Aijun Li, Baojun Yi, Xian Li, Dingding Yao, Hong Yao, Haoran Yuan
Summary: The innovative molten salt thermal treatment was proposed to remove impurities from waste tire pyrolytic char, with the highest removal rate achieved at 400 degrees Celsius. This method effectively removed over 80% of ash and 70% of sulfur, achieving a char recovery rate between 71% and 83%.
Article
Engineering, Chemical
Xiaoping Wang, Yulan Li, Yunjiang Gong, Jun Cheng, Cheng Gong, Debin Jiang, Jie Shi, Lecheng Lei
Summary: A dry process based on dielectric barrier discharge (DBD) plasma was developed to deeply remove organic impurities from solid waste salt, which avoids the generation and treatment of high salinity wastewater. The experimental results indicate that DBD plasma can be used for refining organic pollutant contained industrial waste salt, and it performs better than traditional solution methods, promoting the regeneration and reuse of industrial waste salt.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Xiaoping Wang, Yunjiang Gong, Jiayuan Qin, Jun Cheng, Cheng Gong, Debin Jiang
Summary: The study successfully reduced the total organic carbon content in waste salt containing organic matter using DBD plasma, achieving the refinement of waste salt. The experimental results indicate that the discharge voltage, gas flow rate, initial TOC, and water content in the environment have a significant impact on the efficiency of TOC reduction.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Mudit Nijhawan, Geoffrey Ruytenbeek, Ofelia A. Jianu, Brian M. Ikeda
Summary: This study examines the corrosion issue in the production of hydrogen through the copper-chlorine cycle. The experiments show that 316 stainless steel produces roughly ten times more corrosion product compared to nickel-based alloys. The results also indicate that both nickel and chromium are needed to promote corrosion resistance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Agricultural Engineering
J. S. Lee, B. Ghiasi, A. K. Lau, S. Sokhansanj
Summary: The study washed and pressed sawdust, bark, and wood chips of various species to reduce chlorine content from 2,000-24,000 ppm to below 700 ppm db, meeting the ISO 17225-2 quality standard for wood pellets. The chlorine removal efficiency of this treatment method ranged from 88-95%, with a reduction in ash content of 45-85% compared to untreated biomass samples.
BIOMASS & BIOENERGY
(2021)
Article
Chemistry, Multidisciplinary
Tatiana Grebennikova, Abbie N. Jones, Clint A. Sharrad
Summary: The study presents a novel and non-destructive method for the treatment of irradiated graphite materials to remove contamination and downgrade waste category. By using an electrochemical decontamination approach in a high-temperature molten salt medium, substantial removal of radionuclide contamination was achieved, enabling reclassification of the remaining graphite material from intermediate level waste to low level waste.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Engineering, Environmental
Argyrios Anagnostopoulos, Maria Elena Navarro, Maria Stefanidou, Yulong Ding, Georgios Gaidajis
Summary: Red mud is an industrial waste of the aluminum industry, with only 15% currently utilized, but a new method utilizing RM to formulate CPCM has been proposed, showing good performance and suitability for waste heat recovery.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Materials Science, Multidisciplinary
Krista Carlson, Levi Gardner, Jeremy Moon, Brian Riley, Jake Amoroso, Dev Chidambaram
Summary: The molten salt reactor (MSR) is considered one of the leading candidates to replace current nuclear reactor technologies, offering more economical and reliable designs as well as support for a closed fuel cycle. This review mainly discusses potential waste forms for metal and salt waste streams, and the current efforts in understanding the synthesis and chemical durability of metal and ceramic waste forms.
INTERNATIONAL MATERIALS REVIEWS
(2021)
Article
Energy & Fuels
Yaohong He, Yanjun Hou, Cheng Wang, Shan Wang, Yi Wei
Summary: Nowadays, the increase in population has led to a rise in the amount of waste textiles. Thermochemical processes have the potential to process these textiles on a large scale, and the key to industrial thermochemical treatment is tar removal. This study proposed the use of molten carbonates pyrolysis technology to remove tar from waste textiles.
Article
Materials Science, Ceramics
Qinghua Zhang, Xiaoli Xi, Liwen Zhang, Zuoren Nie
Summary: This paper presents a novel method for rapid reconstruction of tungsten carbide (WC) using Na2CO3-containing molten salt. Experimental results show that the addition of Na2CO3 significantly enhances the dissolution efficiency of WC and transforms tungsten (W) into WC through a reduction process.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Yu-Hsiang Wang, Yi-Hsueh Chuang, Angela Yu-Chen Lin
Summary: Chlorine-induced degradation of ketamine under sunlight irradiation was studied. OH radicals and ozone were found to be the reactive species responsible for ketamine removal. The role of sunlight/ClO2- or ClO2 in ketamine degradation was minor.
Article
Metallurgy & Metallurgical Engineering
Zhimin Zhang, Xuchen Lu, Yan Yan
Summary: RE-containing magnesium alloys were prepared using RE2O3 (RE =Y, Nd and Gd) and Mg metal through molten-salt-mediated magnesiothermic reduction. The thermomechanical analysis of the magnesiothermic reduction reactions in molten salt was investigated, and the process was studied from three different perspectives. The resulting alloy was characterized using chemical analysis, XRD analysis, and SEM analysis. The magnesiothermic reduction was a liquid-liquid reaction with weak driving force, and the movement of magnesium metal and the obtained alloy in the molten salt improved the process safety. However, hydrolysis of the RECl3-containing molten salt hindered the magnesiothermic reduction process. The RE-containing alloy obtained after the magnesiothermic reduction met the requirements for commercial WE43A and WE43B in terms of RE and impurity content.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Engineering, Environmental
Md. Mahmudul Hassan Mondol, Sung Hwa Jhung
Summary: The review discusses the use of metal-organic frameworks for removing pesticides from aqueous solutions to alleviate environmental pollution. It highlights the importance of this method and suggests future research directions in the field.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Yongliang Chen, Masud Hassan, Md Nuruzzaman, Huiming Zhang, Ravi Naidu, Yanju Liu, Ling Wang
Summary: Adsorption is a promising remediation technology for separating organic and inorganic agrochemicals from contaminated soil and water. This study focuses on the use of iron-modified base-activated biochar (FeBBC) as a low-cost adsorbent for removing the insecticide imidacloprid from water. The FeBBC exhibits high adsorption capacity and both physical and chemical interactions contribute to the sorption process. The results demonstrate the potential of FeBBC as an effective adsorbent for removing organic contaminants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Shijin Dai, Yang Li, Tao Zhou, Youcai Zhao
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2017)
Article
Engineering, Environmental
Shi-jin Dai, You-cai Zhao, Dong-jie Niu, Qiang Li, Yu Chen
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
(2019)
Article
Environmental Sciences
Shijin Dai, Yilin Zheng, Youcai Zhao, Qiang Li, Dongjie Niu
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2019)
Article
Engineering, Environmental
Fan Wu, Dongjie Niu, Shijin Dai, Boran Wu
Article
Green & Sustainable Science & Technology
Dongjie Niu, Fan Wu, Shijin Dai, Sheng He, Boran Wu
Summary: Researchers successfully applied artificial neural networks (ANNs) in municipal solid waste (MSW) time-series analysis and forecasting. Despite the high accuracy ANNs achieved, limitations include consistent input data formats and high correlation between input and output. This study adopted deep learning approach LSTM to enhance accuracy and reliability in MSW forecasting, proving superiority over traditional methods and better capturing temporal variations in MSW generation.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Shijin Dai, Libing Liu, Hongping He, Bo Yang, Deli Wu, Youcai Zhao, Dongjie Niu
Summary: In this study, a novel molten NaOH-KOH system was developed for the destruction of organochlorine. Experimental results showed that this molten system effectively destroyed trichlorobenzene and dichlorophenol. Fourier-transform infrared spectrometer confirmed the destruction of organochlorine and enrichment of chloride salt. Molecular dynamics simulation revealed the mechanism of temperature dependence on the performance.
ENVIRONMENTAL RESEARCH
(2023)
Meeting Abstract
Chemistry, Multidisciplinary
Shijin Dai, Youcai Zhao
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Review
Environmental Sciences
Zhengkai Tao, Shijin Dai, Xiaoli Chai
ATMOSPHERIC ENVIRONMENT
(2017)