Water treatment methods are the means of improving water quality by means of physical, chemical or biological methods. The objective of water treatment methods is the drinking water which doesn’t match the quality requirements.
The techniques humans do water treatment may be several years. The methods of water treatment include physical water treatment and chemical water treatment.
Physical methods include filtration by using a number of filter media with different pore sizes. Also, the technique of adsorption, as well as the means of blocking, are utilized. To exclude impurities in the water by adsorption or blocking.
A far more important adsorption method is to adsorption with activated carbon. The blocking method is to pass water through the filter material. To ensure the bulky impurities cannot pass, and thus the water that is clean is got.
Additionally, physical methods include precipitation methods. It really is to let the impurities with smaller specific gravity float on the surface of the water. Or let the impurities with larger specific gravity are deposited underneath. In order to obtain relatively water that is clean.
The chemical method uses various water treatment chemicals to convert impurities into substances which are less damaging to the human being. Or to use water treatment chemicals to focus impurities.
The oldest chemical water treatment solution ought to be the alum. The alum is put into the water. After the impurities within the water are collected, the quantity becomes large. And also the impurities can be taken off with a filtration method.
The minimum standards for water are placed by the environmental protection department. Industrial water have their requirements. The physical properties water are the basic criteria for judging the standard of water.
Including temperature, color, transparency, smell, taste, etc. The chemical properties of mineral water may also be important indicators for judging water quality. Such as its pH, dissolved solids concentration, oxygen content, etc.
Some natural waters have a very total dissolved solids power of up to 1000 mg/l. Canada makes it necessary that the concentration of total dissolved solids in mineral water should not exceed 500 mg / l.
Much industrial water is also important to go to concentrations not higher than 200 mg/l. This type of industrial water is not to be used casually although its physical properties meet the requirements.
In addition, the radioactive element content in water can be a very important characteristic that needs to be monitored.
The goal of water treatment solutions is to improve water quality into a certain standard. There are lots of different types of physical water treatment, chemical water treatment, and biological water treatment based on water treatment methods.
According to the treatment target, there are two major kinds of water supply treatment and wastewater treatment. Water supply treatment includes domestic waters treatment and industrial water treatment. Wastewater treatment includes domestic sewage treatment and industrial wastewater treatment.
There are several kinds of industrial water treatments who are particularly closely connected with thermal technology. They are boiler feed water treatment, make-up water treatment, steam turbine main condensate treatment and circulating water treatment. Water treatment is of great significance to industrial production, product quality, and environmental ecology.