Solid-liquid separator

FUter medium The permeable portion of a filtration system that provides the liquid-solid separation, such as screens, papers, non-wovens, granular beds and other porous media. 

Upset An upset digester does not decompose organic matter properly. The digester is characterized by low gas production, high volatile acid/alkalinity relationship, and poor liquid-solids separation. A digester in an upset condition is sometimes called a "sour" or "stuck" digester. 

Centrifugation is a well-established liquid-solid separation process popular in commercial and municipal waste treatment facilities. It is usually used to reduce slurry and sludge volumes and to increase the solids concentration in these waste streams. It is a technically and economically competitive process and is commonly used on waste sludges produced from water pollution control systems and on biological sludges produced in industry and municipal treatment facilities. 

Among the basic fields of applications, the major use of acrylamide polymers is liquid-solid separation in water treatment and waste treatment. Smaller quantities are used in the manufacturing of paper and in the processing of minerals in mining. Relatively nonlarge quantities are use as additives for enhanced oil recovery. 

Clark, J. G., Select the Right Fabric for Liquid-Solid Separation, Chem. Eng. Prog., V. 86, No. 11, 1990. 

In the polymer industry, post-reaction product treatment processes such as liquid-solid separation, drying, precipitation, particle size control, and polymer purification are very complex and costly. Future polymer plants should be designed such that process equipment can be easily and quickly converted to making new products at minimal cost and with... 

Thickeners, thickeners are primarily used for liquid-solid separation (see Section 10.4). When used for classification, the feed rate is such that the overflow rate is greater than the settling rate of the slurry, and the finer particles remain in the overflow stream. 

Liquid-solid separations, pilot plant, 18 731 Liquid-solid suspension, effective thermal conductivity of, 13 277 Liquid-state metal-matrix composite processing, 16 166-169 Liquid steel, 23 250 Liquid stream dehydration, molecular sieves in, 16 840... 

Possible effects on degradation, emulsion production, or crud stabilization Liquid-solid separation ... 

Anaerobic Filter. An anaerobic filter consists of packed support media that traps biomass as well as facilitates attached growth of biomass as a biofilm (Fig. 8). Such a reactor configuration helps in the retention of suspended biomass as well as gas-liquid-solid separation. The flow of liquid can be upward or downward, and treatment occurs due to attached and suspended biomass. Treated effluent is collected at the bottom or top of the reactor for discharge and recycling. Gas produced in the media is collected underneath the bioreactor cover and transported for storage or use. Volumetric loading rates vary from 5 to 20 kg COD/m day with HRT values of 0.5-4 days. 

This is a liquid/solid separation process using centrifugal force. The moisture of the sludge can be reduced to 65-70%. 

The equipment required to develop this type of sensor is very simple and resembles closely that used to implement ordinary liquid-solid separations in FI manifolds. The only difference lies in the replacement of the packed reactor located in the transport-reaction zone with a packed (usually photometric or fluorimetric) flow-cell accommodated in the detector. Whether the packing material is inert or active, it should meet the following requirements (a) its particle diameter should be large enough (< 80-100 fim) to avoid overpressure (b) it should be made of a material compatible with the nature of the integrated detection system e.g. almost transparent for absorbance measurements) and, (c) the retention/elution process should be fast enough to avoid kinetic problems. 

Even a partial conversion of the hydroxyl groups of kraft lignin into a cationic ether derivative containing quaternary ammonium groups imparts water solubility to the derivative which is a promising candidate as a potential flocculant in liquid/solid separations in industrial and municipal water treatment. 

A liquid/solid separation yields a residue and a solution. The solution is cooled to produce crystalline PbCl2 which is later electrolyzed to lead metal and chlorine in a fused salt cell. The residue consists of elemental sulphur, pyrite and gangue. 

A liquid/solid separation step is usually required before the catalytic reaction with nondisposable catalysts. This is an expensive step. To remove it, the catalyst must be compatible with the contaminating solids. Ebulating beds can partially satisfy this condition, but the rate of catalyst replacement becomes large if the deactivation is severe. 

Table 2.3-1 lists each potential arsenic removal process evaluated in this study along with major evaluation criteria with respect to HP s GaAs processing facility. Because effective liquid solid separation was required, filtration was selected as the process of choice. 

Operational characteristics of the required filtration equipment, like other liquid-solid separation processes, should be relatively simple in operation and offer excellent reliability with full automation. This hands-off operation would reduce health and safety concerns to an absolute minimum. 

Liquid - Solid Separation - Fi1tration Sol i d Yes Excel 1ent Excel 1ent Low Low Excel 1ent... 

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