Although there are numerous studies suggesting hydrothermal carbonization is an environmentally advantageous process for transformation of wastes to value-added products, a systems level evaluation of the environmental impacts associated with hydrothermal carbonization and subsequent hydrochar combustion has not been conducted. The specific objectives of this work are to use a life cycle assessment approach to evaluate the environmental impacts associated with the HTC of food wastes and the subsequent combustion of the generated solid product (hydrochar) for energy production, and to understand how parameters and/or components associated with food waste carbonization and subsequent hydrochar combustion influence system environmental impact. Results from this analysis indicate that HTC process water emissions and hydrochar combustion most significantly influence system environmental impact, with a net negative GWP impact resulting for all evaluated substituted energy-sources except biomass. These results illustrate the importance of electricity production from hydrochar particularly when it is used to offset coal-based energy sources. HTC process water emissions result in a net impact to the environment, indicating a need for developing appropriate management strategies. Results from this analysis also highlight a need for additional exploration of liquid and gas-phase composition, a better understanding of how changes in carbonization conditions (e.g., reaction time and temperature) influence metal and nutrient fate, and the exploration of liquid-phase treatment.
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http://dx.doi.org/10.1016/j.wasman.2015.04.029 | DOI Listing |
J Vasc Access
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Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China.
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Purpose: To evaluate and summarize the evidence for management exercise in patients with CVAD and provide guidance for clinical practice.
DNA Res
January 2025
School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
Pontederia cordata L. is an aquatic ornamental plant native to the Americas, but has been widely distributed in South Asia, Australia, and Europe. The genetic mechanisms behind its rapid adaptation and spread have not yet been well understood.
View Article and Find Full Text PDFJ Mater Chem B
January 2025
Department of Forensic Science, School for Bio Engineering and Bio Sciences, Lovely Professional University, Phagwara, Punjab, India.
The development of pH-directed nanoparticles for tumor targeting represents a significant advancement in cancer biology and therapeutic strategies. These innovative materials have the ability to interact with the unique acidic microenvironment of tumors. They enhance drug delivery, increase therapeutic efficacy, and reduce systemic toxicity.
View Article and Find Full Text PDFAnn Ig
January 2025
Department of Environmental Health, Faculty of Public Health, University of Indonesia, Indonesia.
Background: Tuberculosis is one of the leading causes of death from infectious diseases in the world, with approximately 25% of the global population having latent tuberculosis infection. Secondhand smoke exposure has been recognised as a significant risk factor in the development of active Tuberculosis in individuals with latent tuberculosis infection.
Study Design And Methods: This study used the Systematic Literature Review method based on PRISMA guidelines.
Int J Phytoremediation
January 2025
Graduate School of Environmental Studies, Tohoku University, Sendai, Japan.
ssp. is well known as a Cd hyperaccumulator. Yet, understanding how this plant survives in a high Cd environment without appearing toxicity signs is far from complete.
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