Slurry quality

Samples of treated slurry were obtained from laboratory-scale continuous culture reactors (3 15 litres) during a series of treatments studying the effects on residual slurry quality of mean treatment time, reaction temperature, dissolved oxygen level and pH value (27). Some were also collected from a 2.4m3 pilot plant which was operating at 35°C and 7 day residence time and with dissolved oxygen saturation of 0 to 40%. The pilot plant was treating separated stored piggery slurry (TS 21 g/1 COD 26 g/1 ). 

The gas volume fraction in a foam. Expressed as a percentage this fraction is sometimes referred to as the Mitchell foam quality . In three-phase systems, other measures are used. For example, when foams are formulated to contain solid particles as well, the slurry quality, Qs, which gives the volume fraction of gas plus solid, can be used Qs = (Vg + Vs)/(Vg + Vs + Vi), where Vg, Vs, and Vi denote the volumes of gas, solid, and liquid phases, respectively. 

What specific slurry health concerns are seen in oxide, tungsten, and copper/ low-fe CMP processes, and what metrology approaches are appropriate in these applications to actively monitor and maintain slurry quality Identify potential areas of improvement in the next-generation CMP slurry management. Review various approaches employed for slurry reuse and CMP waste management. What potential may they have in reducing CMP cost of ownership ... 

Roberts BR, Singh RK, Pierce A, Blachier O. Slurry quality and consistency in a continuous slurry blending and distribution system. Proceedings of the 16th International VMIC. 1999.p 495-500. 

Another foam quality that is not used as commonly as the Mitchell quality is slurry quality . Slurry quality (Qs), or total internal phase volume, is defined as the ratio of the volume of gas (VG) plus the volume of proppant (Fp) to the total slurry volume (VG + + fQ (3-5). 

Slurry Quality In suspensions, the concentration of solid particles. 

Hydraulic transport can be achieved using a coal-water slurry, which can be efficiently pressurized by means of displacement pumps up to 70-100 bar with no inert gas detriment [1]. In addition to stability and viscosity, the main measure for slurry quality is the solids concentration. This determines the energy density and the amount of water, which hampers process efficiency. Figure 4.4 shows the influence of the slurry solids concentration on the cold gas efficiency for several solid fuels. Figures 4.4 is compiled using a GE gasifier model with radiant and... 

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