Friends Engineering Works is one of the pioneers and leading manufacturers in the field of manufacturing state-of-the-art machines, used in marble quarrying, processing and finishing activities. The company offers Waste Water Treatment Plant for filtration and recirculation of water in the saving operations in stone quarries.

Waste water of slurry from the gang saw comes to slurry tank where a submersed motor driven pump controlled by a limit level guard automatically conveys the slurry through feed pipe to conical tank. On its way to the conical tank (decanter), the slurry is treated with flocculent, which is dissolved in the tank of clocculent system by means of electric mixing device and drained into a lower tank where a dozing pump injects the flocculants into the feed pipe of conical tank.

The flocculant acts on the solid particles contained in the slurry causing them to stick together.

The solid particles settle down at the bottom of the conical tank, and fresh water from the top of a tank overflows to fresh water tank. The fresh water is recycled to the gang saw through pump unit.

The settled particles from the bottom of the tank are fed to the slurry pump mixer tank. From the mixer tank slurry is fed through a pump to the filter press.

During filter process the cake is formed which is disposed at prescribed site to maintain pollution-environment. The water so recovered is fed to the slurry tank.