Converting Municipal Solid Waste Incineration Fly Ash and Municipal Sludge into Environmentally Compatible Alkali-Activated Material DOI Open Access

Zengqing Sun,

Xiaoyu Li, Min Gan

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(18), P. 7912 - 7912

Published: Sept. 10, 2024

The production of municipal solid waste incineration fly ash (MSWI-FA) and sludge (MS) has been increasing annually, raising concerns about proper disposal. In this study, a thermal treatment method with attributes energy efficiency complete detoxification was applied to synergistically convert MSWI-FA MS into precursors for the synthesis high-strength alkali-activated materials (AAMs). impact mass ratios on mineralogy, microstructure, reactivity obtained were investigated. mechanism alkali activation deeply studied by characterizing evolution reaction products. strength development synthesized AAMs characterized in one-year time scale, as well environmental compatibility. results revealed that strength, values ranging from 12.8–33.0 MPa at 3 d, 29.5–44.1 28 d 39.3–54.8 365 d. Furthermore, after one year curing, release Ni, Cr, Cu, Pb, Zn, Mn, Ba both deionized water acetic acid far below regulatory limits China. All these contribute promoting safe disposal effective valorization MS.

Language: Английский

Hydrothermal Liquefied Bio-Oil from Municipal Sewage Sludge as a Reactive Filler in Polymeric Diphenylmethane Diisocyanate (p-MDI) Wood Adhesives DOI Open Access
Archana Bansode, Tawsif Rahman,

Lucila Carias

et al.

Sustainability, Journal Year: 2025, Volume and Issue: 17(3), P. 1318 - 1318

Published: Feb. 6, 2025

The growing environmental concerns associated with petrochemical-based adhesives have driven interest in sustainable alternatives. This study investigates the use of bio-oil, derived from municipal sewage sludge (MSS) through hydrothermal liquefaction (HTL), as a reactive filler polymeric methylene diphenyl diisocyanate (pMDI) wood adhesives. rich hydroxyl and carbonyl functional groups, was characterized using FTIR (Fourier transform infrared spectroscopy), elemental analysis, NMR (nuclear magnetic resonance). These groups interact isocyanate pMDI, enabling crosslinking enhancing adhesive performance. Various MSS bio-oil pMDI formulations were evaluated for tensile shear strength on Southern yellow pine veneers under dry wet conditions. formulation 1:4 to weight ratio exhibited best performance, achieving strengths 1.96 MPa (dry) 1.66 (wet). Higher content led decreased strength, attributed reduced increased moisture sensitivity. demonstrates potential MSS-derived additive adhesives, offering benefits without significantly compromising performance marking step toward greener solutions.

Language: Английский

Citations

1
Harvesting organic acids with self-regulation separating inorganic fractions during oxygen-alkali hydrothermal treatment of paper mill sludge DOI
Zhijuan Wang, Huajing Zhou, Liang He

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: 13(1), P. 115367 - 115367

Published: Jan. 7, 2025

Language: Английский

Citations

0
Assessing Biogas from Wastewater Treatment Plants for Sustainable Transportation Fuel: A Detailed Analysis of Energy Potential and Emission Reductions DOI Creative Commons
Çağrı Ün

Gases, Journal Year: 2025, Volume and Issue: 5(1), P. 6 - 6

Published: March 8, 2025

This study assesses the potential for biogas production from wastewater treatment plants (WWTPs) in Adana, Türkiye, and evaluates feasibility of transitioning a fleet 83 municipal buses (ranging 15 to 24 years old) operate exclusively on generated these WWTPs. Biogas data three distinct WWTPs Adana were analyzed, revealing total annual 5,394,346 Nm3. Replacing diesel with biogas-powered was found yield significant reduction environmental impacts. CO2 emissions reduced by 84%, particulate matter decreased 84.4%, nitrogen oxides (NOX) dropped 80%. These findings highlight substantial wastewater-derived as renewable energy source public transportation, not only reducing reliance non-renewable fuels but also contributing improved air quality efficiency. Transitioning presents promising model sustainable broader implications footprint urban transit systems.

Language: Английский

Citations

0
Configuring municipal solid and liquid waste treatment plants into bio-refinery to achieve sustainable development goals DOI
Gopalakrishnan Govindasamy,

P. Balaji

Journal of Material Cycles and Waste Management, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Language: Английский

Citations

0
Converting Municipal Solid Waste Incineration Fly Ash and Municipal Sludge into Environmentally Compatible Alkali-Activated Material DOI Open Access

Zengqing Sun,

Xiaoyu Li, Min Gan

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(18), P. 7912 - 7912

Published: Sept. 10, 2024

The production of municipal solid waste incineration fly ash (MSWI-FA) and sludge (MS) has been increasing annually, raising concerns about proper disposal. In this study, a thermal treatment method with attributes energy efficiency complete detoxification was applied to synergistically convert MSWI-FA MS into precursors for the synthesis high-strength alkali-activated materials (AAMs). impact mass ratios on mineralogy, microstructure, reactivity obtained were investigated. mechanism alkali activation deeply studied by characterizing evolution reaction products. strength development synthesized AAMs characterized in one-year time scale, as well environmental compatibility. results revealed that strength, values ranging from 12.8–33.0 MPa at 3 d, 29.5–44.1 28 d 39.3–54.8 365 d. Furthermore, after one year curing, release Ni, Cr, Cu, Pb, Zn, Mn, Ba both deionized water acetic acid far below regulatory limits China. All these contribute promoting safe disposal effective valorization MS.

Language: Английский

Citations

3