MINIATURE-SCALE R&D TECHNOLOGY
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The W1 enables 'jar tests' to be conducted on samples of water requiring treatment. The correct dosage conditions to remove colour and turbidity may be established on a laboratory scale as a prelude to full-scale plant operation.
The Armfield Sedimentation Studies Apparatus provides a facility for studying the basic physical processes involved in sedimentation, including zone formation and hindered settling.
The W3 is designed for students to measure and understand the characteristics of flow through a bed of particles. Such flows occur both naturally in certain ground water situations, and in process plant designs.
The W4 enables a water quality test to be conducted on a suspension to be filtered through sand or similar granular media. It can therefore be used in routine control at waterworks, or at a sewage treatment works which employs tertiary filtration.
This laboratory scale unit operates identically to full scale granular filters. Tests provide operational data which may be scaled up to full size, allowing low cost pilot trials of possible filter designs for water and sewage works.
The W7 demonstrates the hydraulic characteristics and settling efficiencies of a model settling basin. Deductions can be made as to how non-uniform flows occur, and how these interact with the settling characteristics of suspensions.
Anaerobic treatment processes involve bacteria which function only in the absence of air. The W8 operates as a bench top training facility, providing operational process data for training or plant design purposes.
A low cost, bench-mounted unit designed to demonstrate the use of ion-exchange resins for either continuous water softening or demineralisation. Includes monitoring of break-through' and regeneration cycles.
The W10 allows the study of the oxygen transfer characteristics of diffused air systems, and the physical and chemical parameters which influence oxygenation capacity. Essential to the understanding of biological treatment of waste waters.
The continuous activated sludge process has been successfully employed in public health engineering installations for nearly a century. The W11 is designed as a comprehensive study facility of this biological water treatment process.
© Armfield Ltd. 2012
in England. Company Registration No: 1962034