Overview of the Application of Ceramsite Filter Media
A brief overview of the application areas of ceramsite filter media.
Overview of the Application of Ceramsite Filter Media
Ceramsite filter media, with its lightweight, porous, large specific surface area, and good biocompatibility, is widely used in water treatment, environmental protection, and chemical industries. Its core functions are physical filtration and biological carrier.
Water Treatment
Waterworks Filtration: Used in rapid sand filters and V-type filters, replacing quartz sand; strong interception capacity and high backwashing efficiency.
Wastewater Treatment: Standard packing material for biologically aerated filters (BAF), used for COD, ammonia nitrogen, and SS removal; also used for advanced wastewater treatment.
Micropolluted Water Treatment: Used for biological pretreatment (biological contact oxidation tanks), removing ammonia nitrogen, organic matter, and odor.
Environmental Protection and Ecological Restoration
Constructed Wetlands: Serves as a substrate layer, adsorbing pollutants, supporting plants, and providing an attachment surface for microorganisms.
River and Lake Management: Used as a substrate for ecological floating beds or as a sediment covering material.
Chemical and Industrial Applications
Chemical Filtration: Solid-liquid separation, catalyst recovery, acid and alkali resistant, and does not introduce impurities.
Petroleum Wastewater Treatment: Filtration treatment of oily wastewater.
Circulating Cooling Water: Used in side-stream filters to intercept suspended solids.
Application Reference
Application Areas | Typical Uses | Functional Requirements |
Waterworks | Rapid Filter Sandwiches | Sludge Retention and Turbidity Removal |
BAF | Biological Carrier | Biofilm Formation, COD/NH₃-N Removal |
Constructed Wetlands | Matrix Layer | Adsorption, Biological Carrier |
Advanced Wastewater Treatment | Filter Packing | SS Removal |
Summary
The applications of ceramsite filter media can be broadly categorized as follows: primarily water treatment (tap water, municipal sewage, and slightly polluted water sources), supplemented by environmental protection, ecological filtration, and chemical filtration. Among these, biological aerated filters (BAFs) are the core application, while water treatment plant filtration and constructed wetlands are important directions. The appropriate specifications should be selected based on the process requirements (physical filtration or biological carrier).