Cationic polyacrylamides have been employed widely to improve sludge dewatering performance, but the cationic units are randomly distributed in the molecular chain, which restricts the further enhancement of dewaterability. Common template technology to prepare block copolymers requiring a huge number of templates reduces the polymer purity and molecular weight. Here, we adopted the surface-act...

Dewatering of water-coal slurry or thickened product under conditions operating SUEK-Kuzbass JSC enrichment plants is a promising direction obtaining technogenic mineral resources. It should also be noted that the quality obtained will directly influenced by initial raw materials. If content carbon particles high and average ash solid phase low, such interest in terms additional volumes coal af...

Dewatering involves reducing level of flooding field by various technical measure. This paper studies the methods dewatering involving measure water from surface quarries with help horizontal drilling. Horizontal drilling does not cause discomfort at exploitation works, transport and storage deposits being a very efficient method. has great advantage both in terms efficiency environment because...

ground water and surface water create a range of problems in lignite mining utilizing surface mining methods. in order to create a safe and economic mining environment, it is essential to carry out mining after dewatering the rock mass surrounding the lignite mines by advance dewatering techniques. this paper briefly describes the ground water regimes including pressure gradients associated wit...

The dewatering performance and fractal characteristics of alum sludge from a drinking-water treatment plant were investigated in this study. Variations in residual turbidity of supernatant, dry solid content (DS), specific resistance to filtration (SRF), floc size, fractal dimension, and zeta potential were analyzed. Sludge dewatering efficiency was evaluated by measuring both DS and SRF. Resul...

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