a very good filtration media forwater treatment, especially the drinking / waste / sewage water treatment, etc.

Features: 1) Advanced water treatment filter and biological media developed by our company2) The most popular filtration media for water treatment3) Types: porous sand or balls, porous bricks, porous pipes4) Being used by many waster water treatment plants and projects5) Spherical shape6) Uniform grains7) Red-brown appearance8) Porous surface and body9) Interwoven net and strong absorption10) Under the same filtering speed conditions, its capacity is 100% higher than quartz pool, and it saves 30% to 40% volume of the washing water required when recoil rinsing compared to quartz sand. It also has a quick filtering speed and long life cycle.

Chemical comosition 

Comosition	Content%
SiO2	50-70
Ai2O3	15-25
Fe2O3	0.5-10
CaO	1—5
MgO	1—6
KO2+Na2O	3—8
Other	≤2

Main spelification

Item	Index
Appearance  Mm	Approximate spherical rough, reddish-brown
Grain diameter g/cm3	0.5-30
Apparent density g/cm3	1.2-1.6
Bulk density %	0.6-1.2
free volume cm2/g	60-80
specific surface area %	5000-10000
wear loss	≤2
non-uniformity coefficient	K80=1.2-1.5
uniformity coefficitent	K80=1.0-1.3
Solubility in acid %	≤2
Solubility in alkali %	≤1.5
Soluble substance	No any harmful elements contained

ceramic sand fiter