scholarly journals Impact of MSWI Bottom Ash Codisposed with MSW on Landfill Stabilization with Different Operational Modes

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Wen-Bing Li ◽  
Jun Yao ◽  
Zaffar Malik ◽  
Gen-Di Zhou ◽  
Ming Dong ◽  
...  

The aim of the study was to investigate the impact of municipal solid waste incinerator (MSWI) bottom ash (BA) codisposed with municipal solid waste (MSW) on landfill stabilization according to the leachate quality in terms of organic matter and nitrogen contents. Six simulated landfills, that is, three conventional and three recirculated, were employed with different ratios of MSWI BA to MSW. The results depicted that, after 275-day operation, the ratio of MSWI BA to fresh refuse of 1 : 10 (V : V) in the landfill was still not enough to provide sufficient acid-neutralizing capacity for a high organic matter composition of MSW over 45.5% (w/w), while the ratio of MSWI BA to fresh refuse of 1 : 5 (V : V) could act on it. Among the six experimental landfills, leachate quality only was improved in the landfill operated with the BA addition (the ratio of MSWI BA to fresh refuse of 1 : 5 (V : V)) and leachate recirculation.

RSC Advances ◽  
2018 ◽  
Vol 8 (67) ◽  
pp. 38701-38705
Author(s):  
Qingna Kong ◽  
Jun Yao ◽  
Qian Yang ◽  
Dongshen Shen ◽  
Yuyang Long

A new approach including weathering treatment and nano-silica filling was employed to promote the engineering properties of municipal solid waste incinerator (MSWI) bottom ash.


2007 ◽  
Vol 41 (12) ◽  
pp. 4286-4291 ◽  
Author(s):  
Susanna Olsson ◽  
Joris W. J. van Schaik ◽  
Jon Petter Gustafsson ◽  
Dan Berggren Kleja ◽  
Patrick A. W. van Hees

2013 ◽  
Vol 295-298 ◽  
pp. 418-421
Author(s):  
Hai Xia Zhang ◽  
Takayuki Shimaoka

In order to study the effect of organic matter on the heavy metals leachability from municipal solid waste incineration (MSWI) bottom ash. In the project, the composted sewage sludge (CS) rich in organic matter was mixed with MSWI bottom ash in a certain proportion. e exudation test, determination of the leaching liquid pH, dissolved organic carbon and humus concentration, and the concentration of heavy metals. And the combination of CS and BA in organic compounds and metal content, calculate metal leaching rate. According to the experimental results, analysis of dissolved organic matter and humic acid concentrations and Cu and Cr leaching concentration, showed that when CS mixture ratio of 20%, organic matter and humic substances concentration and Cu and Cr leaching concentrations are highly linear correlation.


2020 ◽  
Vol 2020 ◽  
pp. 1-11 ◽  
Author(s):  
Yucheng Huang ◽  
Ji Chen ◽  
Shenjie Shi ◽  
Bin Li ◽  
Jialin Mo ◽  
...  

The rapid development of industrialization, urbanization, and population of the society augments the rising amount of municipal solid waste (MSW). With the advantage of considerably reducing mass and volume of solid wastes and generating energy, the incineration is a widely used treatment method for MSW. During the incineration process, the organic substances contained in the wastes are combusted, and the massive residues are remained. Of the incineration residues, bottom ash takes up to 80–90%, and the remainders are fly ash along with air pollution control residues. Dealing with the municipal solid waste incineration (MSWI) bottom ash in a sustainable manner is the primary principle. Significantly, MSWI bottom ash has been successfully utilized in diverse beneficial applications in recent decades, especially in civil engineering applications. This paper investigates the mechanical properties and validity of MSWI bottom ash as applicable substitutes of conventional subgrade materials. For this reason, a series of direct shear and CBR tests are performed on specimens with different water contents and dry densities.


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