An overview of the classification of water treatment method
Has been adopted by the present method can be broadly classified into three categories:
1, biological treatment methods using micro-organisms in water adsorption, oxidation and decomposition of organic matter in sewage, including aerobic and anaerobic microbial treatment, aerobic treatment more generally.
2, physical and chemical treatment methods in order to coagulation and sedimentation (flotation) technology and the combination of activated carbon as the basic way, as compared with the conventional secondary treatment, improve water quality, but higher operating costs.
3, membrane treatment using ultrafiltration (MF), or reverse osmosis membrane treatment, its advantage is that SS removal rate is high, covers an area as compared with conventional secondary treatment, reducing a lot. But the practical application of this technology in there is still some controversy.
In the water treatment process selection
Determine the process must be to master the volume of water in the raw water, water quality and water use requirements, selection should be based on the above-mentioned conditions, the economy is reasonable, reliable operation of the treatment process; in the selection process should consider installing occupied area and the surrounding environment restrictions, as well as noise and odor impact on the surrounding environment; in the water, the main pollutants are organic matter, most current biological treatment-based approach; in the process of disinfection and sterilization processes are essential, the general chlorine disinfectants disinfected.
In the water treatment process depends primarily on water sources and water use, water sources not only affect the choice of treatment processes, but also affect the cost of processing, therefore, the choice of water sources is critical; At present, our country mainly in residential domestic sewage as a water source, the treated water is mainly used for gardening, flushing, car washing and so on.
Fully automatic water softener is widely used in industrial and civil softened water treatment, such as boiler water, heating, air-conditioning systems to add water, water quality of life. The system mainly consists of multi-way valve, controller, resin tank, salt boxes etc., in order to achieve operation, anti-washing, regeneration, are in various washing process.
     Industrial water use, urban sewage and industrial waste water as a stable second, in the secondary treatment based on in-depth treatment, can be a high-quality industrial water. Sewage treatment and water recycling equipment, using practical new technologies for sewage treatment, and then through reverse osmosis treatment to meet the high and medium pressure boiler feed water, cooling water, chemical, electric power and other industries rigorous process water requirements .
    Alcohol and beverage equipment, RO water purifier is the tap water (well water) through a rational and efficient water pretreatment system to remove particles, impurities, colloid, residual chlorine after the re-use of high-tech reverse osmosis membrane separation technology to In addition to water, bacteria, viruses and other harmful micro-organisms and most of the heavy metal ions, used directly for production of wine blending. The use of such water, not only can keep beer, wine, unique mellow, but also reduce the process.
     Health care, fully automated artificial kidney dialysis machine to use pure water to pure water tank system from the pre-integration of the whole process. It can be with the various models supporting the use of artificial kidney dialysis machine, using world‘s most advanced reverse osmosis membrane technology, coupled with reasonable and efficient pre-processing equipment, water quality fully meet the requirements of water for artificial kidney dialysis.
     Reverse osmosis sea water, brackish water desalination, the use of seawater reverse osmosis membrane elements, pressure vessels, high pressure pumps and other equipment, coupled with a reasonable and efficient pre-treatment equipment, which can effectively remove the inorganic salts in seawater, heavy metal ions, organic matter, bacteria and viruses and other harmful ingredients can be desalination of seawater, up to the national drinking water standards of living.
    The more important is the laboratory water in water treatment, chemical industry, research of water through the membrane and the corresponding complex processing to achieve water standards.