Effluent is pumped from the sump to the top of the cone. A polymer flocculant is added (2) which causes fine particles to bind together and settle rapidly. Clear water overflows from the top of the cone (5) into a storage tank. The sludge at the bottom of the cone (which usually contains 30 - 35% solids) is pumped to a conditioning tank.



Derek Parnaby Cyclones International Ltd
Co Reg. 1124062 (England)
Registered Office
Chilton Industrial Estate
Chilton nr Ferryhill
County Durham
DL17 0SH (UK)
TEL +44 (0)1388 720849
FAX +44 (0)1388 721415
enquiries@parnaby.co.uk
The Parnaby thickener/clarifier cones have a special profile and an internal moving rake designed to achieve the rapid settlement of solids in water.
We make a range of cones from 3m to 20m diameter capable of throughputs of between 30 amd 1,000 cubic metres per hour.