Through testing, reagent ratios of coagulant and flocculate have been selected for accelerating the settlement of coal dressing wastewater and lowering thickness of overflow.

通过试验，确定了凝聚剂和絮凝剂的最佳药剂配比，以加速煤泥水中微细粒在浓缩机中的沉降，降低溢流浓度。

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The environmental quality declined rapidly around one certain Guizhou coal preparation plant, coal dressing wastewater and washing gangue of the factory damage to entironment.

贵州某选煤厂所处工业区环境质量状况不断恶化，该厂外排的煤泥水和选煤废弃物洗矸石对当地生态环境造成了危害。

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The treating method of an ore dressing wastewater is changed to the one using a whirling coagulation sedimentation tank on the basis of the structure of the original ordinary concentrator.

在原普通浓缩机结构的基础上，改为两级串联旋流絮凝沉淀池。

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