The resource utilization of municipal solid waste incineration fly ash (MSWI FA) has been widely concerned at present. The chlorine removal from MSWI FA is of great significance for controlling environmental risk and improving materials properties in the process of its resource utilization. This work specifically proposes to divide the chlorine in MSWI FA into inorganic chloride and organic chloride. The removal rate, influencing factors, and removal mechanism of chlorine in MSWI FA using various technologies were systematically analyzed. In addition, the applicability, advantages and disadvantages of chlorine removal technology in different scenarios were highlighted. This work identifies the technical barriers that need to be solved urgently in the current research and proposes a key direction for future research on the regulation of chlorine removal technologies of MSWI FA.
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http://dx.doi.org/10.1016/j.envres.2025.120784 | DOI Listing |
Environ Res
January 2025
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China. Electronic address:
The resource utilization of municipal solid waste incineration fly ash (MSWI FA) has been widely concerned at present. The chlorine removal from MSWI FA is of great significance for controlling environmental risk and improving materials properties in the process of its resource utilization. This work specifically proposes to divide the chlorine in MSWI FA into inorganic chloride and organic chloride.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
Department of Environmental Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea.
Trichloroethylene (TCE) is widely used in various industrial applications, leading to significant environmental and public health concerns due to its toxicity and persistence. Current nonthermal liquid-phase TCE treatment methods, including electrochemical processes, typically produce liquid byproducts that require additional separation steps, limiting their efficiency. To overcome these challenges, this study introduces an innovative electrochemical approach for the direct conversion of TCE gas into less harmful gaseous products, utilizing a Cu/Ni alloy 3D foam electrode integrated with a poly(vinyl alcohol) (PVA)-sodium polyphosphate (SPP) gel membrane system.
View Article and Find Full Text PDFMicroorganisms
December 2024
Departamento de Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal de Juiz de Fora (UFJF), Juiz de Fora 36036-900, MG, Brazil.
are significant spoilage bacteria in raw milk and dairy products, primarily due to their ability to form biofilms and resist disinfection. This study explored the effects of the phage combined with sodium hypochlorite in reducing biofilms on stainless steel at various temperatures and ages. Biofilms were formed using UFV 041 in UHT milk, incubated at 4 °C and 30 °C for 2 and 7 days.
View Article and Find Full Text PDFMaterials (Basel)
December 2024
Institute for Culture Heritage and History of Science and Technology, University of Science and Technology Beijing, Beijing 100083, China.
Dechlorination is a crucial strategy for archeological bronze stabilization to resist corrosion induced by cuprous chloride (CuCl). Conventional samples, either archeological or simulated ones, have deficiencies in revealing dechlorination mechanisms for their complex rust layers and difficulties in quantifying chlorine content. In this work, samples with fixed chlorine amounts were prepared by compressing method to solve overcomplicated and unquantifiable problems.
View Article and Find Full Text PDFAntibiotics (Basel)
December 2024
School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China.
Background/objectives: Pathogen inactivation and harmful gene destruction from water just before drinking is the last line of defense to protect people from waterborne diseases. However, commonly used disinfection methods, such as chlorination, ultraviolet irradiation, and membrane filtration, experience several challenges such as continuous chemical dosing, the spread of antibiotic resistance genes (ARGs), and intensive energy consumption.
Methods: Here, we perform a simultaneous elimination of pathogens and ARGs in drinking water using local electric fields and in-situ generated trace copper ions (LEF-Cu) without external chemical dosing.
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