The Advantages of Biological Fillers in Wastewater Treatment EngineeringI. Efficient Enhancement of Pollutant Removal CapacitySupport for High BiomassBiological fillers provide a large attachment surface for microorganisms (specific surface area typically reaching 500-800 m²/m³), increasing the biol

Types of Biological Fillers and Their CharacteristicsI. Classification and Properties by MaterialMaterial TypeTypical MaterialsPerformance CharacteristicsApplication ScenariosPolymer MaterialsPolyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC)Strong chemical stability, acid-base corrosio