Kdf Filter Material Wholesale Household Chlorination Heavy Metal Water Purification Copper Zinc Alloy Water Treatment

Product Description

KDF filter material wholesale household chlorination heavy metal water purification copper zinc alloy water treatment

 

KDF55 Media is alloy of copper and zinc which used in water filtration applications. It is desing-ed specially for removing or reducing chlorine and water -soluble heavy metals. It could controls scale,bacteria and algae,even in hot water.

KDF 55 Media could produce eletricity exchange reaction and remove heavy metal ,cop-per,lead,mercury ,arsenic etc. It widely used along with activated carbon to maximise the filter efficiency.

Generally KDF55 Media is used in a purification system as a prefilter,before finer stage of filtra-tion, such as ,reverse osmosis,deionization and ion exchange systems.

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  Purpose and function of KDF processing media:
1: According to the relationship between pH, carbon dioxide concentration and calcium carbonate solubility, when carbon dioxide is removed from the solution, the pH value increases, thus reducing the solubility of calcium carbonate; KDF55 also increases the pH value of water through electrochemical reactions , reducing the solubility of calcium carbonate, resulting in easy precipitation of calcium carbonate scale.
2: Due to the dissolution of zinc ions in the KDF treatment medium, the content of zinc ions in the water has increased. The existence of zinc ions in the water can change the crystal growth mechanism of the scale, so that the calcium carbonate scale in the water is precipitated in the crystal form of aragonite. A soft scale formed on the walls of the vessel instead of a hard scale that crystallized as calcite. Some people have studied the influence of impurities in the water on the growth of calcite crystals. The study found that even when the concentration of zinc ions is very low, it can prevent the formation of calcite crystals.
3: It can be further proved through experiments that the KDF treatment medium prevents the formation and accumulation of mineral hard scale, mainly preventing the crystallization of calcium carbonate in the form of calcite. Crystallographic studies using scanning electron microscopy and X-ray diffraction proved that the hard scales produced in water without KDF treatment were relatively large, needle-like crystals of calcium and magnesium salts with regular morphology, which were hard, Low solubility, with a network structure, is a glass limestone scale. The scale formed in the water of the KDF treatment medium fundamentally changes the crystal form of calcium carbonate (magnesium), the scale shape is relatively small, the appearance is flat and round, granular and rod-shaped, all of which are made of non-hard powder. The average particle size of KDF55 treatment medium is about 60 meshes, and the small particles are about 115 meshes, which can also play the role of physical filtration to remove suspended substances. Generally, KDF55 filter media can effectively remove particles as small as 50μm in diameter.
4: When the water pipe fittings made of steel materials corrode, iron oxidizes to form FeO colloids, and FeO contacts KDF, and redox reactions can also occur. FeO forms Fe2O3 solids and precipitates on the surface of KDF, which can be removed by backwashing. The reaction formula is as follows: 2Cu+FeO Cu2O+Fe 4Fe+3O2 2Fe2O3

 

Recommended operating conditions (backflush control valve with 3-step cycle) Normal water flow rate (10" bed depth) 15gpm/square foot (57L/min) Backflush for 10 minutes Rate: 2 times the normal flow rate Purify/Rinse 3 min rate; 2 times normal water flow rate Media bed expansion Recoil: 10~15% No substrate 20% Bed Depth (6") 10ft pH range: drinking water 6.5~8.5 Total Dissolved Solids Flow >150ppm (mg/L)/min Water temperature (water flow) 350-2120F

 

Item	Standard
Appearance	Golden brown flaky particle
Diameter	5~100 mesh
Bulk density	2.5~2.7g/ cm3
alloy of copper and zinc Content (%)	99.8~99.9%

 

Heavy metal Test result - safe for life and drinking water treatment
Item	Unit	Test result			Conclusion
Size	-	Blank	Sample 1	Sample 2	OK
chromaticity	-	<5.0	<5.0	<5.0	OK
Appearance	-	-	Golden brown flaky particle	Golden brown flaky particle	OK
PH value	-	7.98	8.08	8.10	OK
Arsenic(As)	mg/L	0.001	0.001	0.001	OK
Cadmium(Cd)	mg/L	<0.00006	<0.000425	<0.000503	OK
Chromium(Cr)	mg/L	<0.004	<0.004	<0.004	OK
Plumbum(Pb)	mg/L	<0.00007	<0.00007	<0.00007	OK
Aluminium(Al)	mg/L	<0.008	<0.008	<0.008	OK
Mercury(Hg)	mg/L	0.001	<0.001	<0.001	OK
Iron(Fe)	mg/L	0.25	<0.005	<0.005	OK
Volatile phenol	mg/L	<0.002	<0.002	<0.002	OK
Chloroform(CHCl3)	ug/L	<0.6	<0.6	<0.6	OK

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