Provide volcanic rock,Beijing Kaibiyuan

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Quantity:
0
Shipping Terms:
FOB
Date Posted:
2010-04-13
Expires:
2010-04-27
Status:
Expired

This RFQ is expired and is no longer accepting quotes.

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Product Details

The volcanic biological filter is corrosion resisted, it is inertia, so it never reacts with biological films. 2??Surface??s electric property and hydrophilcity: Volcanic filter??s surface brings positive charge, so it is favorable for the growt
h of the microorganisms. Its hydrophilcity is very strong, so the attached biological film quantity is large and very fast. 3??The effectives to the biological film activity: as a biological film carrier, the volcanic biological filter is harmless , no suppressive to the fixed microorganisms, the fact proves that it never affects the microorganism??s activity.

poriness??the inside and outside average poriness is about 40%, the resistance to water is very small, comparing with the same kind filter, it costs less, but can reach the expected filtering purpose. 2??The specific surface area: the specific surface area is large, the opening holes are many and inertia, so it is suitable for microorganism to touch and form film, keeping

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