In wastewater treatment facilities, Grits are a constant source of wear & tear of the downstream units besides causing blockage problems. We provide a comprehensive range of Grit Separation equipment in various options to suit specific job requirement. These units are optimally designed for the required hydraulics to ensure optimum grit separation even at peak hydraulic load. All parts are adequately 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 are the most commonly used units due to simplicity of its design and its operational reliability. These units are provided either with Screw Classifier or with Rake Classifier depending upon the client's requirement. The organics carried over alongwith grit are returned back to the effluent end by providing organic return pump.
• Rectangular Grit Collectors can also be provided wherever the plant layout does not allow the Square units or there are certain process considerations. These units are generally provided with moving scrappers driven through the endless chain on both ends of the unit which inturn are carried on adequately sized sprockets and also supported along the length to ensure minimum chain sagging. The scrappers can be replaced by the buckets if the debris are to be lifted up sufficiently to dispose them on a conveyor well above the operating platform, otherwise, these units can be provided with suitable screw or rake classifier and at times the grits can also be withdrawn hydraulically if system requires.
• Aerated Grit Channel is an efficient concept for optimal 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. In this design the grit separation is controlled by means of air circulation across the baffle through spiraling flow around it along the length of the channel. For positive grit removal a chain scrapper device is provided similar to the one described under Rectangular Grit Collector section.