Filtration Unit with Plate and Frame
....
A benchtop unit comprising a vacuum formed ABS plastic plinth with integral electrical console on to which is mounted the filtration system.
All electrical circuits are protected by appropriate protection devices.
The console contains a pump motor control and display panel.
A separate controller displays the filter inlet pressure and is used to control the pump speed. Another digital meter displays, via a selector switch, either outlet pressure, permeate pressure, temperature or optical absorbence.
A plate and frame batch filter (separation area 230cm²) is supplied as standard. Both constant flow rate and constant pressure operation are possible.
Feed flow rate can be varied between 0 and 130 l/hour.
An optional tangential flow hollow fiber micro filtration cartridge (plus pre-filter and shell and tube heat exchanger) can be fitted. The hollow fibre cartridge has a separation area of 110cm² and a cut-off of 0.2 µ-m.
This is fully self-contained in a mobile cabinet. Connection to cooling water and a suitable electrical supply is all that is required for normal operation. Comprehensive instrumentation is provided with digital meters displaying temperatures and system pressure. In addition to the membrane module, the cabinet also houses feed and permeate tanks, a plate heat exchanger and positive displacement pumps.
It uses a membrane module which accommodates all PCI membrane types. The unit is supplied with a pack of both R.O. membranes and U.F. membranes.
The RO/UF unit has an efficient clean-in-place facility and is easily dismantled for servicing or maintenance.
All parts in contact with the process fluid are constructed from hygienic design materials such as stainless steel, PTFE and silicone rubber.
The filtration membranes differ only in length and quantity from those installed in the full-scale plant. Using small quantities of process fluid, operating parameters can be established and then optimised to effect a confident transition to full-scale.
Membranes can be installed or removed rapidly for use in either process.
