Grits are continuous source of
wear & tear of the downstream units in wastewater treatment
facilities. It creates blockage problems. We provide a complete range of
Grit Separation equipment in different options to meet specific job
requirements. These units are designed for the required hydraulics to
provide maximum grit separation even at peak hydraulic load. The parts
are properly designed to ensure reliable operation in tough conditions
even with heavy grit situations. The Grit withdrawal section is designed
to ensure that it removes the settled grits without disturbing the
settling in the main section and still lift them with minimum water
contents so that grit disposal does not pose excessive water spillage
problem.
The Grit Separators are available in various options :
- Square Grit Collectors
These collectors are most commonly used units. Its design is simple
and is reliable. The square grit collectors are provided in two
varieties. According to the client's requirement it can be provided
either with Screw Classifier or with Rake Classifier. The organics
carried over alongwith grit are returned back to the effluent end by
providing organic return pump.
- Rectangular Grit Collectors
The rectangular grit collectors are required in two cases. It can
be provided wherever the plant layout does not allow the Square
units or when there are certain process considerations. These units
usually come with moving scrappers driven through the endless chain
on both ends of the unit which inturn are carried on adequately
sized sprockets. They are also supported along the length to ensure
minimum chain sagging. When the debris are to be lifted up to
dispose them on a conveyor well above the operating platform then
the scrappers can be replaced by the buckets. Otherwise these units
can be provided with suitable screw or rake classifier and if
required the grits can also be withdrawn hydraulically according to
system needs.
- Aerated Grit Channel
This is an efficient concept for optimum performance of any grit
removal system. These are installed in long narrow shallow channels
with an adequately sized and spaced air system across a properly
placed baffle plate. The grit separation is controlled by means of
air circulation across the baffle through spiraling flow around it
along the length of the channel. A chain scrapper device is provided
for positive grit removal similar to the one described under
Rectangular Grit Collector section.
