The main role of ferric chloride in sewage treatment

Ferric chloride is a flocculant used in the treatment of urban sewage and industrial wastewater, which can be used for precipitation
Heavy metals and sulfides, decolorization, deodorization, sterilization, dephosphorization, etc.

Because solid ferric chloride has strong water absorption, the hydrolyzed ferric ions have strong oxidizing properties and can replace divalent copper, iron, and stainless steel. Therefore, it is widely used in the hardware industry for etching. This technology The use of the metal processing industry has greatly improved the communication processing efficiency of the hardware processing industry, and made it possible for a lot of precision and speed that cannot be completed by stamping. Ferric chloride is an important water treatment agent. Its real feature is that it can not only remove impurities in the water and thus has the function of a coagulant, but also has the flocculation function of a coagulant, so it has versatility. It is an aqueous solution made by oxidizing ferrous chloride with chlorine gas.

Used in sewage treatment to remove heavy metals and phosphates in water
Liquid ferric chloride is an efficient and cheap flocculant for the treatment of drinking water, industrial water, industrial wastewater, urban sewage and swimming pool circulating water. It has significant precipitation of heavy metals and sulfides, decolorization, deodorization, degreasing, sterilization, dephosphorization, and reduction Efficacy of water cod and bod. Compared with other wastewater treatment flocculants, its main features are as follows:
Replacing flocculants such as liquid or solid aluminum sulfate, polyaluminum chloride, polyferric sulfate, etc., reducing processing costs by more than 30%;
The flocculation performance is excellent, the settling speed is higher than that of aluminum salt series flocculants (such as aluminum sulfate, polyaluminum chloride, etc.), and the formed alum is dense;
The amount of sludge produced is small, which greatly saves the cost of sludge treatment;
It is suitable for a wide range of pH values of water bodies, ranging from 4 to 12, and the optimal range of pH values is 6 to 10.