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Application of Magnesium Chloride Hexahydrate White Ball in Wastewater Treatment

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Hexahydrate magnesium Chloride, also known as halogen tablets, is composed of 74.54% chlorine and 25.48% magnesium, with a relative molecular mass of 95.21. It is a colorless hexagonal crystal. The density is 2.316-2.33 grams per cubic centimeter. Melting point 714°C. It has a boiling point of 1412°C and usually contains six molecules of crystal water, with the chemical formula MgCl2·6H2O.


Hexahydrate magnesium Chloride white pellet is easily soluble in water and ethanol, has a bitter and salty taste, and is easy to deliquesce. Industrial Hexahydrate magnesium Chloride white pellet are mostly produced by evaporation and purification of seawater, salt lake and salt well water. These resources are abundant and inexpensive. There are also some industrial by-products produced by purification, such as the by-products of metal magnesium replacing titanium metal in brine.


After purification, anhydrous magnesium chloride is obtained. The hexahydrate magnesium Chloride white pellet is widely used in the production of magnesium metal, disinfectant, frozen brine, ceramics, and used to fill fabrics, papermaking and other aspects. It can be mixed with light burned magnesium oxide in building materials. And prepare new green environmental protection magnesite concrete materials, etc.


In terms of environmental protection treatment of wastewater, it is well known that water purifiers use polyaluminum chloride, polyferric chloride, polyacrylamide, magnesium chloride, etc. as raw materials, add a certain proportion of fluorescent whitening agent to mix uniformly into particles, and then carry out more weight package. However, in order to be more environmentally friendly, use hexahydrate magnesium Chloride white pellet as a water purifier to treat wastewater. It has a simple process, water purification, short time, low dosage, easy decomposition, no residual toxicity, no secondary pollution, and removal of SS (suspended solids). CODcr (Chemical Oxygen Demand), BOD5 (Biochemical Oxygen Demand) total nitrogen and total phosphorus are obvious, which provides a good foundation for water purification plants and various environmental drinking water purification.