As a pure water production is very important. So to produce pure water must be to choose the place where the quality of raw water is better. Such as mountain springs, deep wells and so on. Here involves a very important index is "conductivity", generally speaking, the lower the conductivity, the purer the water. Water treatment process are used in the reverse osmosis system, after treatment of water can generally reach 90% - 99% of the desalination rate; I introduce the components of this system.
1, raw water pump
Raw water pump is the role of raw water pretreatment system to provide raw water pressure. If the raw water pressure can be completely without this equipment. General requirements for raw water pressure & gt;= 0.3MPa
2, raw water tank
The role of the raw water tank is more simple, is the storage of raw water. This is afraid of raw water in case of supply for a transit (usually add a float switch is the whole system is more automated).
3, quartz sand filter
Using quartz sand filter media to remove large particles of suspended solids in the raw water, sediment, impurities, etc., to reduce the turbidity of the water. And also can make the water organic substances, bacteria, viruses, etc. with the reduction of turbidity is removed in large quantities, and for post-filtration disinfection to create good conditions.
4, activated carbon filter
The use of activated carbon adsorption capacity to effectively adsorb organic matter in the raw water, free residual chlorine, colloids, particles, microorganisms, some metal ions and decolorization.
5, softening system (dosing system)
Use of ionic resin exchange performance, remove calcium and magnesium ions in the raw water, in order to achieve the effect of preventing the formation of scale of the succeeding equipment, but the operation of the labor, materials. Changed to dosing system directly to add scale inhibitors.
Mainly to solve the following problems:
1, to prevent organic pollution;
2, to prevent colloidal substances and suspended solids clogging;
3, to prevent oxidizing substances on the membrane oxidative damage; so as to ensure that reverse osmosis device stable operation and normal service life.
4, to prevent reverse osmosis membrane surface scaling CaCO3, CaSO4, SrSO4, CaF2, SiO2, iron, aluminum oxides, etc. deposited on the membrane surface Reverse osmosis technology in the successful application of pure water equipment, China's drinking water provides a good space for development. The realization of the completion of reverse osmosis technology needs more than one system technology to cooperate with the realization.
1. Treated water
Treated water can be sewage, tap water, river water, groundwater and other water sources. We usually use tap water and groundwater as treated water for reverse osmosis treatment, the water quality is relatively more affectionate, the degree of pollution is low, the processing efficiency is fast.
2. Pre-treatment system
Pre-treatment system for the treated water to make simple water filtration. Is the treated water to the maximum extent close to the reverse osmosis technology on the water quality requirements. In the treated water, if not pre-treatment, then in the reverse osmosis treatment, due to certain impurities or high forcible corrosion is easy to reverse osmosis membrane damage and plugging.
3. High-pressure water pump
The whole reverse osmosis water treatment process, need a certain pressure. High-pressure water pump through the entire water treatment system to provide pressure to ensure who in the membrane through the hole speed and water supply requirements. High-pressure water pumps must have used a special stainless steel corrosion-resistant pumps, because the water treatment solution contains acidic and alkaline substances will be corrosive phenomenon, if the corrosion resistance is weak, corroded, it will cause the water so contaminated.
5. Intelligent control system
New reverse osmosis equipment are equipped with a special PLC intelligent control system. Through the intelligent system to detect the temperature gauge, pressure gauge and other dashboard data changes. Controlled by computer with analog screen. Can control the normal operation of the whole set of reverse osmosis equipment. And according to the needs of water treatment for manual setting of water reference, according to the operating conditions of the equipment to send an alarm prompt.
6. Sealed water tank water storage
After the completion of the reverse osmosis equipment water treatment, to be collected through the professional water tank for the completion of the water treatment. Water tank to be clean, anti-corrosion, to avoid contamination of water. Some other auxiliary systems such as, ozone sterilization system, light inspection, filling system. Also available ultraviolet light to sterilize, ultraviolet light will not have a residue, there are a lot of foreign countries like to use ultraviolet light