scholarly journals Recycling of Coal Fly Ash as an Example of an Efficient Circular Economy: A Stakeholder Approach

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3597
Author(s):  
Oksana Marinina ◽  
Marina Nevskaya ◽  
Izabela Jonek-Kowalska ◽  
Radosław Wolniak ◽  
Mikhail Marinin

The scale of waste formation from coal-fired generation is significant and tends to grow steadily in the context of the global use of coal for power production. This paper covers the problems and current opportunities for recycling coal fly ash waste from coal generation from the position of a stakeholder approach, namely, identification of the main participants and determination of the effects for economic agents in coal fly ash recycling projects. Based on the method of economic modeling and the empirical assessment of project efficiency, this paper presents alternative patterns of stakeholder interaction in the process of implementing coal fly ash recycling projects, estimates the effects of using coal fly ash, and identifies conflicting interests between stakeholders. It is shown that the reason behind the low interest of the Russian private sector in the processing of coal fly ash is the lack of stimulating market mechanisms for manufacturers and consumers of ash products, the high risks of implementing recycling projects based on clean coal technologies, and low environmental payments for commercial companies.

1993 ◽  
Vol 27 (5) ◽  
pp. 827-829 ◽  
Author(s):  
Nancy D. Niss ◽  
John F. Schabron ◽  
Terry H. Brown

Talanta ◽  
2007 ◽  
Vol 71 (1) ◽  
pp. 251-257 ◽  
Author(s):  
Akira Iwashita ◽  
Tsunenori Nakajima ◽  
Hirokazu Takanashi ◽  
Akira Ohki ◽  
Yoshio Fujita ◽  
...  

1977 ◽  
Vol 49 (7) ◽  
pp. 1012-1017 ◽  
Author(s):  
Robert D. Giauque ◽  
Roberta B. Garrett ◽  
Lilly Y. Goda

2010 ◽  
Vol 69 ◽  
pp. 123-128 ◽  
Author(s):  
Salvatore Andini ◽  
Raffaele Cioffi ◽  
Francesco Colangelo ◽  
Claudio Ferone ◽  
Fabio Montagnaro ◽  
...  

In this work three samples of MSWI ash have been stabilized in systems containing coal fly ash and able to give geopolymers through a polycondensation reaction. Monolithic products were obtained with both MSWI ashes as received and after chloride partial removal by water washing. The polycondensation products have been characterized qualitatively by means of FT-IR spectroscopy and scanning electron microscopy (SEM) and quantitatively through the determination of the amount of reacted water and silicate. Differently from traditional cement based stabilization systems, those based on geopolymerization show a chemical behaviour almost insensitive to the presence of chlorides and sulphates in the MSWI ash. On the other hand, the microstructure is strongly affected by the content of soluble salts.


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