
Volcanic rock filter media
Product Introduction
Film-coated lightweight filter media exhibits a rough surface with many micropores in its physical microstructure, characteristics particularly suited for microbial growth and reproduction on its surface, forming a biofilm. Volcanic rock filter media, in aerated biological filter ponds, can not only treat municipal wastewater and biodegradable organic industrial wastewater, and lightly polluted water, but also replace quartz sand, activated carbon, and smokeless coal as filter media in water supply treatment. Additionally, it can perform deep treatment on effluent that has undergone the secondary treatment process at a wastewater treatment plant, with the treated water meeting recycled water standards, allowing for reuse as reclaimed water.
Technical Specifications

Key Features
Volcanic rock biofilter media exhibits a chemical microstructure characterized by:1Microbial Chemical Stability: Volcanic rock biofilter material is corrosion-resistant and inert, not participating in biochemical reactions of biofilms in the environment.2Surface Electrical Properties and Hydrophilicity: The volcanic rock biofilter has a positively charged surface, which is conducive to the adhesion and growth of microorganisms. It exhibits strong hydrophilicity, allowing for a high and rapid accumulation of attached biofilm.3In terms of the impact on biofilm activity: As a biofilm carrier, volcanic rock biofilter material is harmless and non-inhibitory to the microorganisms it immobilizes, and practical evidence confirms that it does not affect the activity of the microorganisms.
【Application Scope】
Used in water treatment filter media, artificial wetlands, landscaping, succulent cultivation, aquatic landscape, aquaculture, and other industries.
Standard Specifications
3-5mm, 5-8mm, 610mm, 1-2cm, 2-3cm, 3-5mm, 5-8mm, 8-16mm, 16-32mm, etc.































