Pure water processing by chemical precipitation
Chemical precipitation in the process of water treatment of polyaluminium chloride, sodium hydroxide and sodium hypochlorite concentration measurement
In order to make the water suitable for human consumption and for medical or industrial use, need to remove chemicals, biological contaminants, suspended solids and gases to the processing of pure water.
Water treatment can be done by chemical precipitation.
In this process, first of all in raw water add polyaluminium chloride (PACl) and flocculating agent such as sodium hydroxide (NaOH), to produce the floc suspended pollutants in the water.Storage tanks of polyaluminium chloride (PACl) will crystallization after a period of time.Visa K - PATENTS®In situ refractometer can monitor online polyaluminium chloride (PACl) concentration, so as to determine whether to need to clean the tank or pipe, lest the polyaluminium chloride (PACl) crystals leads to congestion.
NaOH to adjust pH value, improve the alkalinity and the water acid neutralization, coagulation and flocculation process smoothly.
Precipitation, the suspended particles in the water began to accumulate, the formation of larger particles, namely floc.After the floc formation sediment, will be eliminated in the process.
In the filtering process, the water by the anthracite coal, sand and gravel filter layer, with peculiar smell and taste of organic compounds will be removed in this process.Next, add sodium hypochlorite (NaOCl) in the water disinfection chemicals, such as for all remaining pathogens and potentially harmful microorganisms inactivated.
In addition, can also be added to the water fluoride to reduce tooth decay and prevention of chronic diseases.
In the end, the disinfection purified the water in the pool, its quality control is implemented.
Visa, K - PATENTS ® online refractometer can online measure polyaluminium chloride and sodium hydroxide, in order to ensure effective flocculation impurity particles.In addition, can also be used for sodium hypochlorite and fluoride in the water disinfection phase measurement, to ensure the high quality of pure water.
Read the application instructions, detailed information about the chemical precipitation process.
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