| 原産地: | 中国(本土) | 銘柄: | シンホイ | モデル番号: | 5〜50ミリメートル | タイプ: | 玄武岩 | 石名: | 火山石 | 石造りの形態: | 自然な形状 | 表面の仕上げ: | 粗もみ | 色: | 赤い | を使用: | 水処理フィルタリング材料 |
包装
| 包装: | でトンジャンボ袋か、 あたりのクライアントの要求 |
仕様
filtration application red 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:
