Technical Information
Spheroidal aluminosilicate material described as clay-based, with pore-forming agent and inorganic aggregate, then pelletized, fired and screened.
Composition or process
- Clay main feedstock; pore-forming agent and inorganic aggregate.
- Batching, pre-watering/pelletizing, high-temperature firing and screening.
Applications
- Wastewater and slightly polluted-source-water biological pretreatment.
- Water-supply filtration.
- Groundwater treatment containing iron and manganese.
Source-listed advantages
- Rough microporous surface for microbial growth, easy backwashing, resistance to media loss, strong solids holding and no secondary pollution after long soaking; can replace quartz sand, anthracite and manganese sand.
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