Shijiazhuang Xinhui Mineral Products Co., Ltd.
Shijiazhuang Xinhui Mineral Products Co., Ltd.
water treatment use natural volcanic stone
  • water treatment use natural volcanic stone
  • water treatment use natural volcanic stone
  • water treatment use natural volcanic stone
water treatment use natural volcanic stone
water treatment use natural volcanic stone
water treatment use natural volcanic stone

water treatment use natural volcanic stone

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Basic Info
Basic Info
Place of Origin: Hebei, China (Mainland)
Product Description
Product Description
water treatment use natural volcanic stone   main specification:5-50mm or as per client’s request   characteristics of natural lava stone used as water treatment filtering material: Physical property:   A.non-pointed appearance, small flow resistance, non-blocking    B.rough surface, fast biofilm formation, microbial film is uneasy to fall off while flushing       Repeatedly   C.natural lava stone is porous and is the best growing environment of zoogloea.   D.high mechanical strength 5.08Mpa, longer service time than other filtering material   E.moderate density, saving energy and reducing cost Chemical property:   A.good biological chemical stability, anti-corrosion, sluggishness   B.the surface with positive charge, strong hydrophilicity   C.no affection on the activity of microorganism Hydraulics characteristics   A.the average porosity is about 40% inside and outside and the water resistance is small.   B.lava stone has large specific surface area and high aperture ratio. It is inert. So it is helpful      for microorganism to contact, hang membrane and grow.   C.non-pointed appearance, small water resistance, energy efficiency Technical data:  

item

standard

item

standard

Volume weight

850kg/M3

Specific surface area

13.6-25.5M2/g

Specific gravity

1.4

Compressive strength

5.78Mpa

Water content

0.9-1.0%

Shear strength

3.98Mpa

poriness

73-82%

Friction loss rate

1% max.

Organic substance removal

80% min.

Hanging membrane time

27hours

Removal rate of COD

85% min.

Solubility in hydrochloric acid

1.0% max.

Removal rate of BOD

75-93%

Dissovled matter

Slight rate of beneficial 

minerals and trace components

Removal rate of ammonia 

& nitrogen

85% min.

appearance

Similar ball

 SKYPE:sjz.xinhui   QQ:3118231308 application of natural lava stone:  

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  • Mr. Jinzhu Hao

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