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采用石灰石中和沉淀 ,粉煤灰吸附二级处理煤矿酸性废水 ,取得了良好的效果 .用石灰石中和 pH值至 4.5,再用石灰中和至中性 ,并用粉煤灰吸附 ,粉煤灰用量为 10g/l时处理效果较好 .
Using limestone and sedimentation, fly ash adsorption secondary treatment of coal mine acidic wastewater, and achieved good results with limestone neutralization pH to 4.5, and then neutralized to neutral lime, and fly ash adsorption, fly ash When the dosage is 10g / l, the treatment effect is better.