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Ceramic Sand Filter for Water Treatment:
Filter sand is widely used as filtration medium in monolayer filtration pool, multi-layer filtration pool or mechanical filter to treat various industrial sewage, industrial water, city water, city sewage, pure water and soft water, or used as biological filter material to treat organic sewage. It can also be used as filter material in filtration dust remover to treat with various industrial dust and boiler flue dust.
Chemical Composition
Composition | Content% |
Al2O3 | 18 -25 |
SiO2 | 68- 75 |
Fe203 | ≤1.0 |
CaO | ≤0.5 |
MgO | ≤0.7 |
K02+Na2o | ≤4 |
Rare Elements | Microcomponent |
Technical Indexes
Item | reddish brown microporous balls |
Pore diameter | 0.11-35mm |
Apparent density | 0.8-1.1g/cm3 |
Density | 2.26g/cm3 |
Porosity | ≥5.55% |
Breakage rate & wear rate | 1.61% |
Solubility in hydrochloric acid | 2.83% |
Solubility in sodium hydroxide | 1.50% |
Soluble substance | without harmful microelement to human body |
Adsorbability | Iodine 101 adsorbed by active carbon-310% |
Common specification | Φ0.5-2. Φ4-6, Φ16, Φ25, Φ32 |
Physical Property
Item | Index | Remark |
Acid Resistance | 99.80% | Immersed in 30% hydrochloric acid and 50% vitriol water for two weeks |
Alkali Resistance | 98% | Immersed in NaOH/KOH for two weeks |
Compression strength | Mpa | HG/T36831-2000 |
Hardness | Level 7 | |
Wearing ratio | <0.15 | |
High Temperature | >1350°C | |
Specific Gravity | 1.5-2.2 | |
Bulk Density | 1.9g/cm3 | |
Hygroscopic Coefficient | <1.2% | |
Crushing Ratio | 0.55% | |
Void Ration | 29% |
Ceramic Sand Filter for Water Treatment