Calciferous salt is ideal coagulants which decrease the electric potential.The experiment also showed a new method to treat the coal dressing wastewater by using calcium cinder carbide and PAM together.

• 通过对各种降低动电电位的混凝剂的测试，得出钙盐是较理想的混凝剂，并确定了电石渣与聚丙烯酰胺联用治理煤泥水的最新方法。