Lefilter2026-05-09 BACK TO LIST
In numerous water purification scenarios, effective removal of suspended particles is crucial. Liefert's suspended particle removal shallow sand filter, with its superior performance, has become an ideal choice for various water treatment projects. Below is a detailed introduction to this product.
I. Product Overview
The suspended particle removal shallow sand filter is specifically designed for the efficient interception of suspended particles in water. Utilizing shallow sand filtration technology, it achieves precise capture of suspended particles in water through specific filter media and structure, thereby improving water quality and meeting the stringent water quality requirements of various industries.
II. Working Principle
Filtration Process: The water to be treated enters from the top of the filter and is evenly dispersed into the filter media layer through the water distribution system. The quartz sand filter media filled inside the filter has been carefully screened and graded to form countless tiny, interconnected pores. When water flows through the filter media layer, suspended particles, due to their size being larger than the pore size or due to adsorption, are trapped on the surface and within the pores of the filter media. Thus, the filtered water flows out from the bottom, the suspended particles are removed, and the water becomes clear.
Backwashing Process: As filtration continues, the number of suspended particles trapped on the filter media gradually increases, leading to increased filtration resistance. When the pressure difference between the filter inlet and outlet reaches a set value, the backwashing system automatically starts. Backwash water flows in reverse from the bottom of the filter, fluidizing the filter media. The friction between the media washes away the attached suspended particles, which are then discharged from the top with the backwash wastewater. After backwashing, the filter returns to normal filtration.
III. Product Advantages
Highly Efficient Removal of Suspended Particles: This filter has extremely high removal efficiency for suspended particles, accurately intercepting particles of 20-100 microns, effectively reducing water turbidity. In practical applications, it significantly improves water quality, producing clear and transparent effluent, meeting the water quality requirements of various scenarios such as industrial production and municipal water supply.
Shallow Filtration, Fast and Efficient: Adopting a shallow filtration design, the water flow path is short, resulting in fast filtration speed and the ability to process large volumes of water per unit time. Compared to traditional filtration equipment, it effectively reduces equipment size and floor space requirements for the same processing capacity, saving space costs.
Excellent Backwashing Effect: The optimized backwashing system ensures thorough cleaning of the filter media. By rationally controlling the backwashing water flow intensity, time, and cycle, suspended particles on the filter media can be completely removed, quickly restoring the filtration performance of the media, extending its service life, and reducing the frequency and cost of filter media replacement.
Superior Materials, Durable: The filter tank is made of high-quality corrosion-resistant carbon steel or stainless steel, possessing excellent corrosion resistance and pressure resistance, adaptable to different water quality conditions and working environments. Key internal components such as the water distribution system and filter media also use high-quality materials, ensuring long-term stable operation of the equipment.
High Degree of Automation: Equipped with an advanced automated control system, it can monitor the filter's operating parameters in real time, such as inlet and outlet pressure and flow rate, and automatically initiate the backwashing program according to preset conditions. Simultaneously, the system has a fault alarm function, facilitating timely detection and handling of problems by operators, reducing manual labor intensity, and improving the reliability and stability of equipment operation.
IV. Application Scenarios
Industrial Sector: In industrial production processes, such as electronic chip manufacturing, chemical, and pharmaceutical industries, the water quality requirements for production water are extremely high. Shallow sand filters for suspended particulate matter removal can be used as pretreatment equipment to effectively remove suspended particles from raw water, providing high-quality feed water for subsequent advanced treatment processes, ensuring the normal operation of production equipment and product quality.
Municipal Sector: In municipal water supply systems, they can be used in the filtration stage of waterworks to remove suspended particles such as silt and algae from raw water, improving water quality and ensuring the safety of residents' drinking water. In the advanced treatment stage of sewage treatment plants, they can further remove residual suspended particles in secondary treated effluent, enabling the effluent to meet higher discharge or reuse standards.
Commercial and Residential Sector: In domestic water treatment in hotels, office buildings, and residential communities, this filter can effectively improve water quality, remove suspended solids, and make domestic water clearer and more hygienic. In addition, it plays an important role in circulating water systems such as swimming pools and landscape water features, maintaining the clarity and hygiene of the water.
Liefert's shallow sand filters for suspended particulate matter removal offer reliable solutions for various water purification needs due to their high-efficiency suspended particulate matter removal capacity, unique shallow filtration design, good backwashing effect, and wide range of applications. We will continue to dedicate ourselves to providing our customers with high-quality products and professional services, helping various industries achieve efficient and stable water treatment goals.
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