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. . 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
ItemStandardAppearanceGolden brown flaky particleDiameter5~100 meshBulk
density2.5~2.7g/ cm3alloy of copper and zinc Content (%)99.8~99.9% Heavy
metal Test result - safe for life and drinking water
treatmentItemUnitTest resultConclusionSize-BlankSample 1Sample
2OKchromaticity-
Related products about Zhongci Kdf055/5-30mesh Particle Water Filter Cartridge Custom Remove Residual Chlorine Filter Material From Water
- Waste Tyre Plastic Recycling Machinery Machine Tire Crusher Production Line Rubber Crumb Grinding Machine Equipment Tire Shredder
- Stretch Plastic Blowing Pet Bottle Making Blow Molding Machine Bottles Stretch Automatic Pet Bottle Blowing Machine
- Waste Plastic Pet Bottle, Water Bottle Flake, PP/HDPE/LDPE PE Film Jumbo Woven Bags Plastic Crusher Machine, Plastic Crushing Washing Recycling Machine
- Type 2 Wall-Mounted Electric Car Charging Station 7kw /11 Kwelectric Vehicle Charging Station Home Wallbox AC EV Charger Single Phase or 3three Phase
- G-View G12W Wholesale Auto Car LED Headlight Bulb High Power H13 H11 9005 H7 H4 Car LED Headlights LED Car Lights
- New Design Porcelain Round Plates Dinner Set for Wedding and Banquet
- China 2023 New Design Super Soft 100% Polyester Microfiber Knitted Oversized Decoration Hoodie Blanket
- Handmade Art Creative Materials Thickened White Paper Cup DIY Disposable Handmade Colored Paper Cup