Mechanical Filtration System For Circulating Water Reuse

Product Overview

The Mechanical Filter for Circulating Water Reuse is an efficient solid–liquid separation device widely used in industrial water recycling systems. It effectively removes suspended solids, sediments, and colloidal particles, ensuring stable water quality and protecting downstream units such as ultrafiltration (UF) and reverse osmosis (RO). The system is easy to operate, stable in performance, and equipped with an automatic backwash function.

Working Principle

Under pressure, raw water flows through the multi-layer media bed consisting of quartz sand, anthracite, and gravel. Impurities are trapped and adsorbed within these layers. When the pressure difference between the inlet and outlet exceeds the preset value, the automatic backwashing cycle starts, using clean water or air-water flushing to remove trapped particles and restore filtration efficiency.

Main Components

• Filter vessel (carbon steel, stainless steel, or FRP)

• Multi-layer filtration media system

• Water distribution and collection system

• Pressure gauge and flow meter

• Automatic valve assembly

• Backwash control unit (optional PLC system)

Features

• Multi-media design ensures high filtration accuracy and stable effluent quality

• Automatic backwash system reduces manual maintenance

• Compact structure and small footprint

• Corrosion-resistant materials ensure long service life

• Continuous operation and online cleaning available

• Customizable specifications based on flow and water quality

Applications

• Industrial circulating and cooling water treatment

• Reclaimed and recycled water systems

• Power plants, chemical, and metallurgical industries

• Pretreatment for UF/RO membrane systems

• General wastewater and domestic water purification

Optional Configuration

• Automatic differential pressure backwash system

• Stainless steel lining and internal piping

• Intelligent PLC control cabinet

• Multi-unit parallel configuration

• Skid-mounted integrated system

     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.