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What is the best water filter system? Sand filters Vs Cartridge filters

A water filter removes impurities from water by means of a fine physical barrier, a chemical process or a biological process. Filters cleanse water to different extents for purposes like irrigation, drinking water, aquariums, and swimming pools.

Cotton filter:
Some manufacturers call it cartridge filter or Precision cartridge filter, cotton filter has a porous width of 2.0 and 5.0 micrometer which disallow passage of parasites trophoziotes and ova in addition to elimination of pollutants.

Filter precision is a type of water purification equipment is used to prevent impurities from entering the high-pressure pumps and reverse the process of osmotic membrane filtration accuracy is 0.10μm to 60μm and accuracy of nomination is to feed the non-volatility of pressure.

Cartridge filter has NO effect on Salt elimination, this means it cannot used as a salts filtration system.

Main usage
is in tap water in your house to purify water after it had been salts removed by a national company or whatever water supplier.

Precision cartridge filter is designed with a tube of 7 filtering components of polypropylene. Filtering accuracy is 5μm and length 750 mm.
This filter cartridge contains a filter with a capacity of 3M3 / hour.



When the differential pressure of the cartridge used more than 0.07Mpa, should the user to change one of the components of the filter precision filter our own designer neutral structure which facilitates the process of replacing components.

Silica sand filter:
Also known as the mechanic filter and A biosand filter (BSF) is a point-of-use water treatment system adapted from traditional slow sand filters. ,and Silica sand filter is a type of water purification equipment used primarily in the granular remove impurities, suspended solids, colloidal, and other materials in the water.
Also there is a slow filtration sand filter and a rapid or fast sand filter.
Silica sand filter is a type of stainless steel and multi-media filter that 600mm inside diameter of the filter there is a good kind of silica sand. Higher layer filtering is usually more than or equal to 1200mm under normal working condition, the total production of water and sanitation 3 cubic meters per hour.
Current designs include the speed of the water to be about 10m /h.

Silica sand filter control valve provider laundering rear Automatically, can achieve laundering rear manual.
candle filters vs sand filters
Filter sand is silica sand filled.. Filter media can be one or more of the material between the silica sand, anthracite, porous ceramics such as manganese sand grains. Higher layer filtering material more than 1200mm. It should be high filtration material is compatible with the requirements of the relevant technical.

Under normal temperature limit certain pressure, through flocculation, are wiped absorption and objection means the nomination, and impurities in the solution of the original SDI and water filter greatly reduced.

Besides, it is equipped with silica sand filter with protective devices and monitoring tools. Since the device has the function of the back washing the dirt or other contaminants can be washed away quickly with a small amount of water.. Filtration accuracy is 0.005-0.01m, and the Missile colloidal polymers of high organic matter can be removed effectively.

Silica sand filter is characterized by simple automatic control, the ability to handle large high-efficiency filtration, a small resistance, easy to operate, easy maintenance, etc..

The filter can be used silica sand along with other water treatment equipment, to be used in various water treatment plants, water purification and waste-water discharge.

Read also more comparisons:
RO Vs Ceramic and Charcoal filtration.
Ultra-filtration and UV sterilization.
Best brands of water filters in 2013.

2 Best water purifier and disinfectant system (UV Vs Ultrafiltraion)

Disinfectants and ultra-purification systems are used intensively against very contaminated water sources as seawater or rivers as well as colored water or polluted with High molecular weight organic substances.
Water sterilization is another synonym.

UV filtration systems:
UV used to treat the water and purify it allows for the destruction of microorganisms (viruses, worms, bacteria and protozoa ...) in the water, because the waves of ultraviolet radiation can affect the work of molecules in living organisms to prevent duplication and reproduction as well as the destruction of microbes completely. Require this process to clear water (before filtering) inputs to get water cleared, and can be applied to water consumption, the process of rejection, the sea, and swimming ... treated water can be used for food consumption, agriculture, industry,...etc.

The use of ultraviolet rays
to disinfect water is one of the modern processes are currently UV sterilizer (UV): It effectively destroys bacteria and viruses by altering the DNA which prevent them from multiplying . As is the case with ozone , it is necessary to use sterile secondary to prevent the growth of microorganisms .

The advantages of using ultraviolet radiation :
UV rays can be attractive as an antiseptic initial small systems for the following reasons :
  • They are readily available
  • It does not produce toxic residue
  • Requires short periods of contact
  • Ease of operation and maintenance
Limitations on UV usage: from the known problems that these rays may not kill Giardia lamblia or Cryptosporidium . And must be used only by groundwater systems that were not directly affected by the water surface devoid of neighborhoods that can not kill these rays . UV is suitable for water with high levels of turbidity or colored or if any organic material soluble ( because they use radiation to decompose thereby becoming food easy for bacteria and these substances can interact with them or absorbed by restricting their performance sterilization ) .

Filter the water using ultra- filtration :
Is a kind of water purification equipment , which unites technology filtration to filter water and is therefore different from other systems in the function of the membrane with a maximum purification , method of water purification this applied technology fiber vicious new and purification initial three stages to remove impurities in the running water purification high pore minute are smaller from 0.01μm to germs that accumulate rust and other dangerous substances and filtered out while the exact materials , metals and materials beneficial to human body are persists in permeate water while hard water completely excluded.

Fiber membrane allows the water cycle high yielding that do not block easily , since the components of the filter can be cleaned frequently. They enjoy the process of life and can be easily replaced
UV Vs Ultrafiltration
humans are preserved .

Because the filter ultra-filtration water running compression card flowing water , it does not consume electricity.

Capabilities of ultra-filtration systems:
Shell material is UPVC
Refining capacity HF-4 filter ultrafiltration water is 4M3 / H.
End seal material is epoxide resin
Operating pressure is 0.1-0.3MPa
Max. feed water pressure is 0.5MPa
Max. trans-membrane differential pressure is 0.2MPa
Feed water PH value is 1-14
Operating temperature is 5℃-45℃
Yielding water turbidity is < 0.1NTU
Silt density index (SDI) is < 1
Suspended substance, particulate (>0.2µm) is 100% removed
Microbe, pathogens is 99.99% removed.

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