Highlights•Coal gangue has been applied in building material, energy, agriculture and other
industries.•Negative environmental problems cannot be ignored in the utilization of coal …

Coal preparation is an indispensable stage in coal production, during which run-of-mine
coal is transformed into products (clean coal) suitable for the market. By-products (coal …

Cemented paste backfill (CPB) technology is beneficial to the recycling of solid wastes and
sustainable development in mines. However, the wetting-drying cycle caused by water …

Using coal gangue (CG) as supplementary cementitious materials (SCMs) is believed to be
one of the effective strategies for CG disposal. While the low reactivity of CG restricts its large …

With the rapid development of industrialization and urbanization, coal-based solid waste,
agricultural and forestry wastes, urban solid waste, and other by-products are inevitably …

A rough estimate of the annual amount of sulfur, arsenic, mercury and fluoride emission from
spontaneous combustion of coal gangue in China was determined. The weighted mean …

Unreasonable accumulation of coal gangue in mining area has become the major source of
global pollution. Probing the high‐valued utilization of coal gangue has become a key …

This work presents a method for synthesizing NaY zeolite from quartz abundant coal gangue
through alkali fusion and hydrothermal processes. The synthesized zeolite was …

Spontaneous-combustion coal gangue aggregate (SCGA) has low physical properties and
strong water absorption capacity. Previous studies are mostly based on the principle of …

To explore the thermal behavior and hazard during the spontaneous combustion fires
(SCFs) of coal and coal gangue (CG), the characteristics of heat release and thermal …