Jacopa® Sand/Grit Separator

The grit classifiers separates and washes sand from wastewater (municipal or industrial). It consists of a large conical hopper for sand/grit settling, sedimentation and washing. A tubular screw is used to convey and dewater the collected material, the conical shape of the hopper plus the counter washing system and the low rotational stirrer allow the washing of sand/grit and the separation of organic matter.

Available in 3 standard sizes.

The demand for cleaner waste products free of biodegradables is growing, as are requirements of legislative bodies. Although good efforts have been made to achieve the best possible grit / organics separation in the past, few operating plants have been very successful. The Jacopa GSW separates and washes grit/sand coming from municipal and industrial wastewater flows of various kinds and is a highly effective machine for the separation of grit from foul and odorous organic solids. Not only does it produce a consistently clean grit, it also offers considerable benefits in addition. These include the valuable reduction of waste volume for removal from site and the reduction of odour problems, so that storage of cleaned grit (even within an enclosed preliminary works building) is acceptable.

The Jacopa GSW unit is composed of a large conical hopper for settling and washing the grit, with a tubular screw for conveying and the dewatering of the collected material. The hoppers conical shape, plus the special counter-washing system and the low rotation of the internal stirrer, allows the units to wash the grit and separate the organic matter. The assembly is completely enclosed in order to avoid odour and contaminated matter being released.

There is a flanged inlet connection on the upper part of the hopper unit, to accept the grit/slurry mixture into the unit for treatment. The conical shape of the hopper and the vortex action through the system plus the slow rotational of the stirrer, enables the effective separation of the grit/sand through washing and settling. The heaviest grit particles will settle on the bottom of the hopper, on settling the counter-current system allows the washing to take place therefore only washed material reaches the extraction screw. The screw extracts the collected material, lifting it towards the discharge point, where dewatering also takes place.

Performance of the GWS system allows for >10% moisture content and >5% organic content to be discharged. Solids handling of up to 1.3m³/hr can be accomodated in a single unit.