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Incidental iron oxide nanoclusters drive confined Fenton-like detoxification of solid wastes towards sustainable resource recovery.
Nat Commun
January 2025
State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, 210023, PR China.
The unique properties of nanomaterials offer vast opportunities to advance sustainable processes. Incidental nanoparticles (INPs) represent a significant part of nanomaterials, yet their potential for sustainable applications remains largely untapped. Herein, we developed a simple strategy to harness INPs to upgrade the waste-to-resource paradigm, significantly reducing the energy consumption and greenhouse gas emissions.
View Article and Find Full Text PDFSimulation Study on the Stabilization Control Performance of Low-Calorific-Value Waste Combustion in Waste Incinerators.
ACS Omega
December 2024
Electrical Engineering College, Guizhou University, Guiyang 550025, China.
To address the instability of low-calorific-value waste incineration processes and suppress the generation of toxic dioxins, this study examines a 600 t/day waste incineration furnace as a case study. Numerical simulations of the incineration process were conducted by using bed calculation software FLIC and Fluent. A waste incineration cleanliness index was defined, and the impact of the reduced calorific value of the incoming waste on the temperature distribution within the incineration furnace was explored.
View Article and Find Full Text PDFInsights into closed-wet ultrasonic carbonation of MSWI fly ash: Carbon sequestration, heavy metals stabilization, and PCDD/Fs migration and degradation.
J Environ Manage
December 2024
State Key Laboratory of Clean Energy Utilization, Institute of Thermal Power Engineering of Zhejiang University, Hangzhou, 310027, Zhejiang, China.
This study proposed a novel closed-wet accelerated carbonation method based on ultrasonic chemistry for treating municipal solid waste incineration fly ash (MSWI FA), assessing various reaction parameters (time, temperature, CO pressure, ultrasonic power, and alkaline additives) on the detoxification and synergistic carbon fixation. The mechanisms of carbon sequestration, heavy metal migration-stabilization, and PCDD/Fs migration-degradation were elucidated. Key findings include the reaction kinetic of MSWI FA ultrasonic carbonation aligning with the surface coverage model (R > 0.
View Article and Find Full Text PDFPolychlorinated dibenzo-dioxin/furan and polychlorinated biphenyl concentrations in the human milk of individuals living near municipal waste incinerators in the UK: Findings from the Breast milk, Environment, Early-life, and development (BEED) human biomonitoring study.
Environ Res
December 2024
Department of Epidemiology and Biostatistics, Imperial College London, London, UK; NIHR Health Protection Research Unit on Chemical Radiation Threats and Hazards, Imperial College London, London, UK; MRC Centre for Environment and Health, Imperial College London, London, UK; National Institute for Health Research (NIHR) Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London, UK; Mohn Centre for Children's Health and Wellbeing, School of Public Health, Imperial College London, London, UK. Electronic address:
The objective of this study is to report recent PCDD/F and PCB human milk concentrations in the United Kingdom (UK) and relate these to two proxies for exposure to municipal waste incinerator (MWI) emissions. As part of the Breast milk, Environment, Early-life, and Development (BEED) study, primiparous individuals were recruited from within 20 km of English MWIs between 2013 and 2015 and asked to provide human milk samples. The samples were analysed for quantitative concentrations of 17 PCDD/F and 12 PCB congeners.
View Article and Find Full Text PDFEffects of industrial solid waste on the generation of PCDD/Fs, dl-PCBs and PAHs tuned by waste pseudo-components during engineering co-combustion.
J Hazard Mater
November 2024
Key Laboratory of Environment Nanotechnology and Health Effects, State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Article Synopsis
- Co-combustion of municipal solid waste (MSW) with industrial solid waste (ISW) is increasingly common, but its impact on harmful pollutants remains unclear, complicating control efforts.
- An incineration study using a 650 t/d capacity tested various ISW blends and developed a new model to understand the relationship between waste components and their toxic byproducts, including PCDD/Fs and dl-PCBs.
- Results showed co-combustion led to a significant increase in the generation of these contaminants, particularly from plastics like PET and PVC, indicating a need for stricter regulations on blending certain waste types to minimize toxic emissions.
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