Resources Utilization of Municipal Solid Waste Incineration Ash

2012 ◽  
Vol 518-523 ◽  
pp. 3463-3469
Author(s):  
Heng Lin Xiao ◽  
Jing Zhu ◽  
Jun He ◽  
Hong Wang
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Bottom Ash ◽  
Chemical Properties ◽  
Waste Incineration ◽  
Simple Analysis ◽  
Environmental Requirements ◽  
Physical And Chemical ◽  
The City ◽  
And Chemical Properties

Incineration is an effective way for amega-city to dispose of its substantial Municipal Solid Waste(MSW) in China. But more than 20% of the waste (by weight) will retain in combustor ash, producing a great amount of ash. How to deal with the incineration ash has become a critical problem to the city developing. By the simple analysis of the physical and chemical properties of the ash, and to basis of the beneficial use of municipal waste combustion ash in some countries, the ways of the resource utilization of the bottom ash mainly are discussed in the paper. In addition, engineering and environmental requirements for ash utilization are also analyzed.

scholarly journals A Review on Cementitious Materials Including Municipal Solid Waste Incineration Bottom Ash (MSWI-BA) as Aggregates

Buildings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 179
Author(s):  
Jad Bawab ◽  
Jamal Khatib ◽  
Said Kenai ◽  
Mohammed Sonebi
Keyword(s):  
Municipal Solid Waste ◽  
Water Absorption ◽  
Solid Waste ◽  
Bottom Ash ◽  
Chemical Properties ◽  
Waste Incineration ◽  
Treatment Method ◽  
Cementitious Materials ◽  
Municipal Solid Waste Incineration ◽  
Municipal Solid Wastes

Waste management is a vital environmental issue in the world today. Municipal solid wastes (MSWs) are discarded in huge quantities on a daily basis and need to be well controlled. Incineration is a common method for reducing the volume of these wastes, yet it produces ashes that require further assessment. Municipal solid waste incineration bottom ash (MSWI-BA) is the bulk byproduct of the incineration process and has the potential to be used in the construction sector. This paper offers a review of the use of MSWI-BA as aggregates in cementitious materials. With the growing demand of aggregates in cementitious materials, MSWI-BA is considered for use as a partial or full alternative. Although the physical and chemical properties of MSWI-BA are different than those of natural aggregates (NA) in terms of water absorption, density, and fineness, they can be treated by various methods to ensure suitable quality for construction purposes. These treatment methods are classified into thermal treatment, solidification and stabilization, and separation processes, where this review focuses on the techniques that reduce deficiencies limiting the use of MSWI-BA as aggregates in different ways. When replacing NA in cementitious materials, MSWI-BA causes a decrease in workability, density, and strength. Moreover, they cause an increase in water absorption, air porosity, and drying shrinkage. In general, the practicality of using MSWI-BA in cementitious materials is mainly influenced by its treatment method and the replacement level, and it is concluded that further research, especially on durability, is required before MSWI-BA can be efficiently used in the production of sustainable cementitious materials.

scholarly journals Physical and Chemical Properties, Pretreatment, and Recycling of Municipal Solid Waste Incineration Fly Ash and Bottom Ash for Highway Engineering: A Literature Review

2020 ◽  
Vol 2020 ◽  
pp. 1-17
Author(s):  
Yong Lu ◽  
Angran Tian ◽  
Junhui Zhang ◽  
Yongsheng Tang ◽  
Peixin Shi ◽  
...  
Keyword(s):  
Fly Ash ◽  
Bottom Ash ◽  
Chemical Properties ◽  
Waste Incineration ◽  
Physical And Chemical Properties ◽  
Municipal Solid Waste Incineration ◽  
Mswi Fly Ash ◽  
Highway Engineering ◽  
Physical And Chemical ◽  
And Chemical Properties

Municipal solid waste incineration (MSWI) has been widely used due to its benefits in reducing waste and recovering energy. However, MSWI fly ash and bottom ash are increasing rapidly, causing harm to human health and the environment. This paper discussed the production process, physical and chemical properties, leaching properties, pretreatment methods, and applications of fly ash and bottom ash. By summarizing the previous literature, it is found that MSWI fly ash and bottom ash have mechanical properties similar to natural aggregate. Many beneficial attempts have been made in cement concrete aggregates, ceramic raw materials, and highway engineering materials. Due to concerns about the leaching of heavy metals in fly ash, its application in highway engineering is limited. The application of bottom ash in asphalt pavement is rare because of the side effect on the performance of asphalt mixture. Considering the solidification effect of cement on heavy metals and the low cost of fly ash and bottom ash, the application in cement-stabilized macadam base has broad application prospects. This is beneficial to reduce the construction cost and promote the process of waste incineration, especially in developing countries.

scholarly journals Towards the Promotion of Fuel Briquettes Using Municipal Solid Waste and Residual Biomass in Burundi

2020 ◽  
Vol 9 (1) ◽  
pp. 14-31
Author(s):  
Norbert Manirakiza ◽  
Théophile Ndikumana ◽  
C. Gisèle Jung
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Energy Content ◽  
Local Population ◽  
Chemical Properties ◽  
Calorific Value ◽  
Prolonged Heating ◽  
In Fire ◽  
Physical And Chemical ◽  
And Chemical Properties

The issue of domestic energy is still a major concern in developing countries. A sound knowledge of fuel characteristics is a major asset for their acceptability and their distribution. Samples of briquettes made partially with Municipal Solid Waste (MSW) were collected in several companies with unknown characterization. This study intended first to characterize them for physical and chemical properties. Subsequently, energy content of the briquettes and the energy price are presented and compared to those of charcoal and peat, which is typically used by the local population as fuel. To classify the different briquettes according to their quality in terms of rate as well as their level in fire resistance, cooking tests and heating curves have been made. The calorific value of the studied briquettes varied from 12.3 to 18.6 MJ/kg compared to 32.5 MJ/kg for charcoal and 14.7 MJ/kg for peat. Consequently, their value as viable substitutes for charcoal or peat is apparent. However, some samples burn very quickly and do not provide prolonged heating while other samples have a slow rate of combustion and release little energy. Finally, the briquettes using MSW have a low price between $0.16 and $0.19/kg compared to the price of $0.53/kg for charcoal and $0.20/kg for peat. The promotion of these briquettes as a valuable substitution fuel is proved and contribute to sustainable development by reusing MSW and avoiding deforestation.

Sign in / Sign up

Export Citation Format

Share Document