Chemical Engineering @ChemengFiles.Com

There are currently undefined procedures by which treatment can be carried water to be purified or separated from the minerals and waste that detract from quality to it. Define the most appropriate treatment for water involves classifying the type of liquid you want to purify, since procedures vary for such work are made on salt water, wastewater, or water contaminated by industrial activity specific.

The various treatments that are performed in the case of wastewater can be classified broadly into physical and chemical treatments, biological treatments and chemical treatments, which have elements and special procedures and appropriate to this classification.

In the case of wastewater treatment, physical-chemical type, one can identify four classic and procedures are the removal of sand, solids removal, separation and filtration of solids and finally, precipitation can be performed through the use of coagulants or flocculants any. In this purification process of waste water, use a certain amount of ferric chloride, which accelerates the removal of phosphorus and facilitates the precipitation of biosolids.

Another process by which you can clean the wastewater is biological, this involves three distinct stages in the treatment of liquids from shops or industries:
In the first instance of the process is the aerobic system or oxidizer bed after this first step, followed by post precipitation stage and finally proceeded to liberate the means of effluent. This last step can be performed with some type of disinfection or no, will depend on the type of rules governing society where treatment takes place.

The third wastewater treatment is called chemical, in this particular case, the process is usually accomplished by combining other procedures as it is, for example, focused on removing solids formally called "leak".

In countries like United States technique that uses a combination of these two processes, allows the procedure to be listed as a treatment of a physical-chemical Within the latter treatment, a chemist, is the elimination of iron in drinking water, including the removal of oxygen in the water from the well known thermal power plants, and also removing existing phosphate in wastewater of domestic origin and the removal of nitrates in the residual type of domestic and industrial origin.