摘要
朝阳新华钼矿尾矿水中的细粒悬浮物在大量水玻璃作用下长期悬浮,回用时严重影响选矿指标。本文以H2SO4和CaO为pH调整剂,以PAC、PAFCS和PAM为絮凝剂,以MgCl2和CaCl2为助凝剂,研究了用不同混凝剂处理时废水的浊度以及絮体的沉降速度。试验结果表明,以CaO为pH调整剂、PAM为絮凝剂、CaCl2为助凝剂,用量分别为600g/t、20g/t、200 g/t时,絮体沉降最快,上清液浊度仅为7.62FTU。
Fine solids in the tailing water of Xinhua Molybdenum Mine always maintain suspended and unsinkable due to high concentration of sodium silicate. In this study, the residue turbidity and settling rate of the wastewater with different coagulants are examined, using H2SO4and CaO as the pH regulators, PAC,PAFCS and PAM as the flocculants and CaCIE and MgCIE as coagulation aids. The results show that the effects are optimum with the combination of 600g/t CaO, 20g/t PAM and 200 g/t CaCl2.
出处
《矿冶》
CAS
2007年第2期57-60,84,共5页
Mining And Metallurgy
关键词
悬浮物
尾矿水
混凝
浊度
沉降速度
suspended solids
tailing water
coagulation
residue turbidity
settling rate
