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Different size cobble stone used for sewage treatment

Product: Pebble/ River stone

Color: White/ Green / Sky blue / Brown etc.

Common size: 1-2,2-4,4-6,6-8,8-15,15-32cm 0.5-1 1-2 2-4 4-6 6-8mm

Usage: Sewage treatment

Package: 25/50 kg/ bag


Cobble stone also called pebble or river stone is a kind of pure natural stone. It is taken from the gravel mountain produced by the ancient river bed uplift after crustal movement, cobble stone are widely used as first filter of sewage water treatment.

Advantage of Pebble

  • Hard
  • Wear resistance
  • Anti- stress

Application of Pebble

  • Water filter media
  • Sewage treatment
  • Gardening

Specification of Pebble

Specific gravity 1.85g/cm3 Hardness 7.5
SiO2 98% Bulk density 1.85
Solubility of hydrochloric acid 3.50% Density 2.66

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