This product has the purification, the dechlorinate, to deodorize and so on functions, the husk filters material adsorbability.

The husk filters the material widely to use in oil field oily sewage processing, industrial waste processing and the civil water treatment. Substitutes for the quartz sand leach material, enhances the water quality, reduces the water treatment cost large scale the new generation filters the material.

The husk filters the material to use the high quality carya shell is a raw material, undergoes, polishing, to steam stave washes, the medicine antiseptic treatment, two screening processings become. This filters the material tenaciously, wear-resisting, resistant to compression (compressive resistance is 23.4kgf), the chemical properties are stable, the adsorption truncation dirt strong (adsorption rate is 27-50%), the anti-oil bath, Yi Fan washes the regeneration, counter-flushing intensity low (6.7L/Sm2), rate of percolation quick (24-26m/h), does not harden, is not rotten, never replaces, every year only need supplement 5-10% then.

The oil elimination rate reaches 95%, the oiliness drops to below 5mg/g. Is suitable builds up enterprise's water treatment in the petroleum, has degree of hardness to be high, the wearability, resistant to compression is good, adsorption truncation dirty ability strong and so on merits, before may use directly filters, the counter-flushing, is remarkable to the oily sewage processing effect.

Fruit Shell Filter Sand  Technical  Specification
ITEM NO.	UNIT	DATA
1. Oil removal rate	%	90-95
2.Seston removal rate	%	95-98
3. Filtration rate	m/h	20-25
4. Specific Gravity	g/cm3	1.50
5. Backflushing intensity	m3/m2.h	25.00
6. Water flushing pressure	Mpa	0.32
7.Heaping weight	g/cm3	0.80
8.Maintenance approach	supplement annually  %	5-10

The husk filter material of walnut shells