Lamella settlers: Material balances and clarification rates

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6715851

Maimoni, A

The material balances and clarification rates of a lamella settler can be obtained from the particle size distribution and density of the solid, the liquid density and viscosity, the desired solids concentration in the overhead product, and the feed and underflow solids concentration, using an algorithm based upon a simple geometric model. The method was validated using concentrated suspensions (up to 20 vol % solids) of four different feed particle size distributions of hydrargillite (aluminum hydroxide) in water. Most of the data were obtained in a 60-cm-long settler with 1-cm plate separation inclined at 60/sup 0/ to the horizontal in ''open bottom'' and ''normal'' configurations. The hydrodynamics of tube settlers are more complex and the algorithm is not applicable.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6715851
• Report Number(s): UCRL-95924; CONF-870323-4; ON: DE87006427
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
42 ENGINEERING
420200 -- Engineering-- Facilities
Equipment
& Techniques
ALGORITHMS
ALUMINIUM COMPOUNDS
ALUMINIUM HYDROXIDES
CRYSTALLIZATION
DATA
DENSITY
DISPERSIONS
EXPERIMENTAL DATA
EXTRACTION APPARATUSES
FLUID MECHANICS
HYDRODYNAMICS
HYDROGEN COMPOUNDS
HYDROXIDES
INFORMATION
LAMELLAE
MATERIAL BALANCE
MATHEMATICAL LOGIC
MATHEMATICAL MODELS
MECHANICS
MIXER-SETTLERS
NUMERICAL DATA
OXYGEN COMPOUNDS
PARTICLE SIZE
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SEPARATION EQUIPMENT
SIZE
SUSPENSIONS
VISCOSITY