

Expanded clay filter media
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Product Description
- 产品描述
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Lightweight Expanded Clay Aggregate Filter Media
Product Introduction
Expanded Clay Lightweight ceramic particles made by adding excellent clay pore-forming agents and sintering at high temperatures, reddish-brown in color, featuring developed micropores, large specific surface area, high porosity, strong pollutant interception ability, and easy film attachment. Suitable for biochemical, oil removal, iron removal, manganese removal, and filtration treatment of industrial wastewater from metallurgy, petroleum, chemical industries, and municipal sewage. It is a conventional biochemical filter media. Used as a bio-carrier in the BAF process for phosphorus removal and nitrogen removal.
Product Features
1 The surface of the expanded clay filter media is rich in micropores, has a large specific surface area, is easy to attach biofilm, and supports a large biomass, showing good removal effect on NH3-N、 COD with strong pollutant interception ability and high treated water quality. ;
2 The pore distribution of the expanded clay filter media layer is uniform, with surface pore sizes suitable for microbial growth in mesopores and macropores, overcoming issues of high head loss, clogging, and compaction caused by uneven pore distribution in the filter media layer. ;
3 The expanded clay filter media has moderate density and uniform specific gravity, requires short backwash time, has a long service life, low energy consumption, overcoming defects of difficult control and easy media loss, saving electricity and labor. ;
4 The expanded clay filter media uses excellent particle size gradation, has strong pollutant capacity, efficient media utilization, and slow increase in head loss. Under the same conditions, the filtration rate can reach 16m/h, working cycle 24h or more, with a cycle water production reaching 800-1000m3/m2 which is 1.5-2 times ;
5 The expanded clay filter media contains no substances harmful to humans or the environment, has high mechanical strength, impact resistance, good biological, chemical, and thermodynamic stability.
Technical Parameters
Item
Pore Size mm
Apparent Density g/ cm ³
Density
g/c m ³
Specific Surface Area Porosity cm ³ /g
Porosity %
Abrasion Rate
Hydrochloric Acid Solubility %
Sodium Hydroxide Solubility %
Adsorption Rate
Elution Rate
Index
0.11-35
0.8-1.1
2.26
4X104
55
2
2.83
1.5
Activated Carbon Adsorption Rate 10%
No Harmful Elements
Note : Common Specifications : Medium Φ 5-2, Φ 4-6, Φ 16, Φ 25, Φ 32.
Product Inquiry
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