In mining areas where gangue is used for infill mining, Ordovician limestone karst water affected by discarded gangue, and the quality changes significantly. this study, effects of on change under different immersion solution conditions were evaluated Zhai Zhen Coal Mine, Hongqi Mine Limestone Karst Water, Baizhuang Mine. The results showed that cations in each group solutions had similar trend...

Sulfide oxidation is a common phenomenon associated with many mined ore bodies and extracted or processed waste. Where the products of these chemical reactions can enter a water body the result is often a reduction in water quality through the increase of acidity, metals and dissolved salts. Due to an attributed lower environmental impact the release of sulfate has received little attention in ...

A large number of filter materials, organic and inorganic, for removal of heavy metals in mine drainage have been reviewed. Bark, chitin, chitosan, commercial ion exchangers, dairy manure compost, lignite, peat, rice husks, vegetal compost, and yeast are examples of organic materials, while bio-carbons, calcareous shale, dolomite, fly ash, limestone, olivine, steel slag materials and zeolites a...