Sewage treatment equipment

Disadvantages: The water treatment equipment of the water purifier removes scale, the water and alkali effect is poor, and it is suitable for areas with moderate hardness; A single ultrafilter can not completely remove the smell of the water, the water taste is poor; Core change is more troublesome, can not completely remove heavy metals in water.

Nanofiltration membrane machine

Nanofiltration membrane water treatment machine is a water treatment machine with nanofiltration membrane as the main component and slightly loose structure, similar to reverse osmosis membrane. Nanofiltration membrane is a charged membrane, which can carry out electrical adsorption, partially remove F ions with high electrical properties, etc., and has a nano level pore size, large molecules cannot pass through, free water molecules partly pass through, NaCl partly passes through, calcium ions, calcium ions, and so on. Less magnesium can pass through. The advantages of the above water treatment machine are included, and the secondary water treatment is avoided.

Device selection edit broadcast

One of the criteria: look at qualifications.

The Health Supervision Center of the Ministry of Health of the People's Republic of China clearly issued: Measures for the supervision and administration of drinking water sanitation, of which article 21 clearly states:

Therefore, all products that do not have a health license issued by the Ministry of Health are "driving without a license" and are not protected by law.

Standard two: Look at the material.

Modern water renovation know to buy pipes, pipe fittings to buy good, after installation also play a pressure test water. Why? Afraid of running away. Fire and water are merciless, and this is a crucial thing.

Therefore, the second thing to look at when choosing water treatment equipment is the material of the tank.

Standard 3: Definite function.

Choose water treatment equipment to first clear their own purpose, first from the concept of ordinary water purification or softening water. Ordinary purified water is to remove sediment, impurities, bacteria, heavy metals, residual chlorine, organic matter, and some minerals from the water. Softened water is to remove calcium and magnesium ions in water, the most direct is to say scale.

Generally, softened water only needs to use cationic resin to complete ion exchange and remove calcium and magnesium ions. The softened water has the advantages of cleaning the skin, washing clothes soft and smooth, protecting the water heater and faucet, the shower is not blocked by scale, and the sink no longer has water stains. However, it should be noted that it is precisely because of the removal of calcium and magnesium in the water, long-term drinking of softened water will cause calcium and magnesium deficiency in the human body. Therefore, in addition to the water quality hardness to reach very hard and extremely hard standards, should use water softener as drinking water treatment equipment. It is a wise choice to use water softener as domestic water treatment equipment.

Ordinary purified water is different from softened water, and many different filter materials need to be used in order to achieve the predetermined purification requirements. Each filter material can play a different purification role, how to reasonably match the composition of the filter material is the key.