1. Appearance: White spherical shape with a smooth surface, free from visible impurities, damage, or deformation.
2. Specifications: Diameter typically ranges from 1.0-2.5mm (customizable as needed), with sphericity uniformity deviation not exceeding ±0.2mm.
3. Density: Bulk density is 0.38-0.45g/cm3, and wet density is 1.0-1.1g/cm3.
4. Porosity: Internal porosity of the sphere is ≥80%, facilitating fluid penetration and impurity retention.
5. Temperature Resistance: Maintains stable physical form and performance within -10°C to 80°C, without softening or brittleness.
6. Corrosion Resistance: Exhibits good chemical stability in pH 4-9 environments, without dissolution or significant degradation.
7. Mechanical Strength: Compressive strength ≥0.3MPa; spheres resist breakage and adhesion after repeated rinsing, with a recovery rate ≥95%.
8. Filtration Performance: Removal rate for suspended particles ≥5μm is ≥85%, with filtration speed reaching 15-30m/h (adjustable based on water quality).