A new type of complex flocculant PBKD is prepared from coalrefuse and pyrite slag, and is used as flocculant in the treatment of tanning waste water.
以煤矸石及硫酸烧渣做原料，制备了一种新型复合絮凝剂PBKD，并将其用于制革废水的处理。
2
In-door planting experiment was carried out to study the influence of the mining offal, using coalrefuse and fly ash as the planting medium, on the crop of red soybean.
通过室内栽培试验，研究了煤矸石和粉煤灰作为培养基对作物生长的影响。
3
Extracting alumina from coalrefuse, sintering cement clinker directly from residues and circulating waste gas and liquid is a unusual technology for utilization of coalrefuse.