Sand Water Gravel Classifier Grit Water Separator For Wastewater Treatment

Product Overview

The Grit Separator (Grit Classifier) is a key device used in wastewater treatment systems to separate sand, grit, and other heavy inorganic particles from water. It effectively reduces wear and damage to downstream equipment such as pumps, clarifiers, and sludge treatment units. This equipment ensures the stable operation of the entire wastewater treatment process by removing abrasive particles early in the process.
Working Principle

The wastewater containing grit flows into the grit separator. Under the influence of gravity, the heavier particles such as sand and gravel settle to the bottom of the tank, while the lighter organic matter and water flow out. The settled grit is conveyed by a screw (or scraper) to the discharge outlet, where it is dewatered and discharged, achieving efficient grit-water separation.
Main Components

• Separation Tank: Stainless steel structure designed for grit settling and separation.

• Screw Conveyor: Transports settled grit from the bottom to the outlet and performs dewatering.

• Drive Unit: Includes motor and gearbox to power the screw.

• Water Inlet and Outlet: Optimized flow design ensures stable hydraulic performance.

• Control Panel (optional): Provides automatic control of operation and overload protection.

Features

• High separation efficiency and low organic content in discharged grit.

• Compact design with easy installation and maintenance.

• Corrosion-resistant stainless steel construction (SS304 / SS316 optional).

• Energy-saving operation with low power consumption.

• Customizable size and screw inclination angle according to project requirements.

• Optional automatic control system for continuous operation.

Applications

• Municipal wastewater treatment plants

• Industrial wastewater treatment systems

• Slaughterhouses and food processing plants

• Paper mills and chemical plants

• Pretreatment systems for sewage pumping stations

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     Jiangsu Sanhe Environmental Protection Group Co., Ltd., formerly Jiangsu Sanhe Environmental Protection Equipment Co., Ltd., is located on the scenic shores of Lake Taihu. It is a renowned manufacturer and developer of modern environmental protection and water treatment equipment in China. It comprises several subsidiaries, including Jiangsu Sanhe Environmental Engineering Co., Ltd. and Yixing Sanhe Environmental Protection Design Institute Co., Ltd. The parent company has a registered capital of 100.2 million yuan, a building area of ​​over 20,000 square meters, and a staff of 52 technicians. The company boasts not only strong environmental protection equipment production and R&D capabilities, but also a highly qualified team with over 30 years of experience in environmental protection equipment production and service, a passion for environmental protection, and a commitment to integrity.

     After nearly 30 years of continuous effort, our innovative development of new products, technologies, materials, and processes, along with our expertise, has been widely adopted in the industry. We have developed advanced continuous-flow activated carbon filters and differential fully automatic backwash filters specifically for reclaimed water reuse and zero-discharge projects. We have also independently developed high-efficiency activated carbon suitable for flow-through activated carbon towers, resolving challenges in China due to poor adsorption performance, short service life, saturation, and high operating costs, hindering widespread adoption and ensuring long-term effective use of activated carbon.

    ​Since its establishment, Jiangsu Sanhe Environmental Protection Group Co., Ltd. has provided qualified products and services to nearly a thousand renowned domestic and international manufacturers, including municipal sewage treatment plants, the machinery and chemical industry, CNPC, Sinopec, Baosteel Group, Jiangxi Copper Group, Dongfeng Nissan, Dongfeng Motor Corporation, commercial passenger vehicle companies, Hangzhou Luxgen, Great Wall Motors, Dongfeng Peugeot Citroen Automobile, Dongfeng Yangzijiang Bus, CSR Corporation, and the Tarim Oilfield, earning a strong reputation. We are grateful to all our friends who have given us opportunities and helped us grow!

     We firmly believe in down-to-earth and steady development; we advocate scientific innovation and unremitting pursuit; and we promote energy-saving, low-carbon, and green living. We provide our customers with ingenious products and services and strive to establish our company as a leading modern enterprise in China's environmental protection production, research, and development sectors.