Polyacrylamide
Application scenarios
The main sources of mineral processing wastewater include process drainage from beneficiation operations, overflow from tailings ponds, and plant/mine drainage. To alleviate water scarcity in mining operations and reduce wastewater discharge, it is common practice to purify and recycle this wastewater.
Solution
The purification processes for mineral processing wastewater mainly include: (1) a closed-circuit system combining hydrocyclones and thickeners in series; (2) dehydration using gravity sedimentation equipment; and (3) tailings pressure filtration.
Both Process (1) and Process (2) require the assistance of polyacrylamide (flocculant) to enhance dehydration. It accelerates the flocculation and sedimentation of suspended solids, reduces the solid content in the supernatant, and increases the concentration of the underflow.
| Product Name | Performance Features | Applicable Range |
| Anionic Polyacrylamide | Wide molecular weight range: 6 to 20 million | Generally suitable for wastewater with inorganic solid suspended solids |
| Cationic Polyacrylamide | Molecular weight: 10 to 13 million, ion degree: 5% - 80% | Generally used for wastewater systems with organic solid suspended solids |
