Coal combustion used by the Combined heat and power plants (CHPs) generates solid
wastes-coal fly ash (CFA). Up to 22% of the total electricity supply in Russian is coal …

The synthesis of layered double hydroxide (LDH) from industrial wastes is a sustainable
approach to aid circular economy and hazardous material disposal. In this review, the …

A cascade extraction method was constructed by combining alkali desilication with
carbonation and acid leaching to achieve efficient separation and comprehensive recovery …

Long-term accumulation of toxic heavy metals in the environment was a potential hidden
danger. High energy consumption, complicated operation and low adsorption capacity were …

Chemical sludge massively generated from chloride removal of saline wastewater by the
Friedel's salt precipitation method is difficult to handle and dispose. In this study, a novel …

This paper presents an efficient way to produce Ultra High-Performance Composites
(UHPC) with Molybdenum tailings (MT) based on a green activation approach. Firstly, the …

High-strength ceramics were prepared from high alumina fly ash (HAFA) and activated
alumina as raw materials with magnesia as a sintering additive. The growth kinetics and …

Coal fly ash (CFA) is a potential secondary resource. In this study, silica and alumina from
CFA were leached and utilized through a gentle alkali hydrothermal process. The results of …

High-alumina fly ash (HAFA) is one of the categories of industrial solid wastes and the
extraction of aluminum from HAFA could offer an alternative to the commercially available …

Coals are now viewed as a promising source of rare earth elements increasingly often. Rare
earth elements (REE) are known to occur both in the organic and mineral components of …