Recycling coal ash into environmentally-friendly building materials is one way China’s largest coal-producing province of Shanxi is trying to cope with the 120 million tons of toxic dump.
Lying in the surroundings of Shentou No 2 Power Plant, in Shuozhou city of the province in northern China, a 1.2 square-km landfill of coal ash has taken shape for three decades.
Annually, three million tons of ash leaks from three power plants in the area.
Coal ash contains toxic heavy metals, including arsenic, cadmium, mercury and lead, which leaks into the water system and is blown into the air on windy days.
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