The complexity and scale of the sources, types and environmental impacts of persistent solid waste pollution (PSWP) continue to overwhelm the capabilities of government and private efforts to control it. Global cumulative production of virgin plastics is expected to quadruple by 2050 with a concomitant doubling of plastic waste. All nations must take significant steps to realize eventual mitigation of PSWP. These will include adopting a long-term PSWP elimination policy, creating an overarching authority to lead and coordinate a comprehensive national solid waste management program, and creating an International Convention for the Prevention of PSWP to enable global solutions for this global pollution. Initiating these changes will necessitate major, coordinated efforts on the part of environmental organizations, their supporting foundations and concerned citizens.
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http://dx.doi.org/10.1016/j.marpolbul.2018.12.004 | DOI Listing |
Environ Monit Assess
March 2025
Department of Civil Engineering, National Institute of Technology, Tiruchirappalli, Tamil Nadu, 620 015, India.
Developing heat recovery systems to capture and utilize heat from unmanaged dumpsites is crucial for mitigating urban heat island effects and greenhouse gas emissions. Particularly in major cities in Tamil Nadu, the rise in temperatures approaches ignition thresholds. The present study has systematically examined and estimated the heat output across the selected dumpsites in Tamil Nadu, India, specifically Perungudi-Chennai, Vellalore-Coimbatore, and Vendipalayam-Erode open dumpsites.
View Article and Find Full Text PDFAppl Environ Microbiol
March 2025
Soil Ecology Lab, Jiangsu Provincial Key Laboratory of Coastal Saline Soil Resources Utilization and Ecological Conservation, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization & Jiangsu Key Laboratory for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing, China.
The compost microbiome is important in regulating soil carbon sequestration. However, there is limited information concerning phage communities and phage-encoded auxiliary metabolic genes (AMGs) in compost-applied soils. We combined metagenomics and meta-viromes to explore the potential role of bacterial and phage communities in carbon sequestration in the compost microbiome.
View Article and Find Full Text PDFEnviron Sci Technol
March 2025
GFZ Helmholtz Centre for Geosciences, Telegrafenberg, Potsdam 14473, Germany.
Mine tailings generated from hydrometallurgical processing of nickel-cobalt laterite deposits contain high levels of chromium (Cr), with the hexavalent species being a toxic pollutant and carcinogen. However, the partitioning, speciation, and local bonding environment of Cr in the mine tailings remain largely unknown, hindering our ability to predict its toxicity and long-term behavior. Coupling detailed mineralogical, spectroscopic, and geochemical characterization with sequential extraction of tailings from active and rehabilitated dams, we show that Cr is present in its least toxic form, Cr(III), and largely immobilized by recalcitrant minerals.
View Article and Find Full Text PDFRSC Adv
March 2025
School of Energy Resources, University of Wyoming Laramie WY 82071 USA
This study presents a sustainable approach to large scale synthesis of carbon quantum dots (CQDs) from nutshells, a widely available waste from biomass, using hydrogen peroxide (HO) as the oxidizing agent in a hydrothermal process. The conditions of synthesis, including concentration of HO, reaction temperature and time, have been systematically optimized. The results show that optimal conditions include a concentration of 2.
View Article and Find Full Text PDFEnviron Res
March 2025
Guangdong Provincial Engineering Technology Research Center for Urban Water Cycle and Water Environment Safety, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, PR China; State Environmental Protection Key Laboratory of Microorganism Application and Risk Control, School of Environment, Tsinghua University, Beijing, 100084, PR China. Electronic address:
Utilizing widespread minerals/solid wastes as electron donors for denitrification is conducive to sustainable wastewater treatment. The current denitrification technologies based on single pyrite/solid carbon sources have problems of limited removal efficiency or unstable carbon release. In this study, two continuous biofilters, pyrite-corncob mixotrophic system (R) and pyrite-polybutylene succinate mixotrophic system (R), were conducted and operated steadily for a long period (>326 d).
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