20-30mm Natural Black Volcanic/lava Stone Wholesale Lava Pumice Rock For Sale

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Product Overview

Description









Product name
Volcanic Rock
Color
Variegated
Shape
Similar to spherical particles
Size
20-40/10-20/4-10 mesh
Purpose
Water treatment
Applicable object
Water
Article number
ald02016
Product selling points
The high-efficiency membrane hanging lightweight filter material of volcanic rock biological filler has rough surface and many micropores in terms of physical and microstructure. These characteristics are suitable for microorganisms to grow and reproduce on its surface and form biofilm. Filler shape and water flow pattern: as the volcanic rock biological filler is non sharp granular,and most of the pore diameter is larger than that of ceramsite, it has small resistance to water flow and saves energy consumption














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