Thermal treatment on MSWI bottom ash fines

The municipal solid waste incineration (MSWI) bottom ash is the main by-product in the waste-to-energy plant, which accounts for about 80% of the total by-products. The further challenge after incineration is to find a suitable way to dispose or use the solid residue. It is well understood that the bottom ash contains contaminants, such as heavy metals, which pose an environmental risk. In order to reduce landfill of these residues and enhance the recycling of resources, different treatments are applied to upgrade the quality of the bottom ash, for instance, weathering, washing, etc. However, the treatments on the MSWI fine bottom ash particles are less sufficient. Hence, in this study the thermal treatment is applied on fine bottom ash and its effect on the bottom ash properties are investigated

The application of treated bottom ash in mortar as cement replacement

The fine municipal solid waste incineration (MSWI) bottom ash (0-2 mm) is pre-treated and used as cement replacement to investigate its effect on the properties of mortar. The chemical and physical properties of the treated bottom ash are characterized, and the metallic aluminum content is determined. The treated bottom ash is used in mortar as cement replacement by 30% wt. The flowability of the fresh mortar with treated bottom ash is determined, and the flexural and compressive strengths of the mortar after different curing times are measured. Finally, the influential factors of the application of treated bottom ash as binder on the properties of mortar are summarized

Thermal treatment on MSWI bottom ash fines

The municipal solid waste incineration (MSWI) bottom ash is the main by-product in the waste-to-energy plant, which accounts for about 80% of the total by-products. The further challenge after incineration is to find a suitable way to dispose or use the solid residue. It is well understood that the bottom ash contains contaminants, such as heavy metals, which pose an environmental risk. In order to reduce landfill of these residues and enhance the recycling of resources, different treatments are applied to upgrade the quality of the bottom ash, for instance, weathering, washing, etc. However, the treatments on the MSWI fine bottom ash particles are less sufficient. Hence, in this study the thermal treatment is applied on fine bottom ash and its effect on the bottom ash properties are investigated

The investigation of the MSWI bottom ash fines (0-2 mm) as binder substitute after combined treatments

In this study, a series of treatments is used to upgrade the quality of the MSWI bottom ash fines (0-2 mm) from a waste-to-energy plant in the Netherlands. The efficiency of combined treatments on upgrading the quality of fine bottom ash particles to be used as cementitious material is studied. The leaching properties of treated bottom ash fines are analyzed according to the Dutch legislation. Additionally, their physical and chemical properties (density, chemical composition, hydration influence, etc.) are characterized. Finally, the hydration of the cement mixed with treated bottom ash is investigated by calorimetric measurements

Enhanced air pollutant removal efficiency of photocatalytic concrete with waste glass

This study investigates the air pollutant removal efficiency of photocatalytic concrete with incorporated waste glass. Concrete samples are prepared with two different TiO2 photocatalysts applied at different dosages. Subsequently, the photocatalytic oxidation (PCO) degradation efficiency of air pollutant is tested and compared between the reference concrete samples with normal aggregates and samples with waste glass particles. The obtained results indicate that the utilization of glass as concrete aggregate can enhance the PCO efficiency of concrete. The highest PCO efficiency improvement by glass particles application reached over 52% compared to the reference sample

Thermal treatment on MSWI bottom ash fines, in:

Abstract The municipal solid waste incineration (MSWI