Frequently Asked Questions

Q. is the headloss through a Lamella system?

A. 200 to 300 mm should be allowed for most systems.

Q. How often do the plates need cleaning?

In most application the plates will build up a layer of solids over time. The nature of the solids will determine the cleaning frequency, we suggest annually is a fair mean.

Q. What sludge thickness can be achieved?

A. Up to 3% dry solids sludge can be achieved by using the LT type lamella unit, 1-2% is more realistic for the LS and LP lamella types.

Q. What is the best way to desludge the lamella system?

As with most high rate processes a “little and often” philosophy should be used. Normally we would recommend this is done on a timer basis, however instrumentation can be used to control the desludge, and aid decision-making.