Plate Heat Exchangers in Paper Mill Sewage Systems

Plate Heat Exchangers in Paper Mill Sewage Systems

Plate heat exchangers in wastewater treatment systems, which are used to treat the wastewater generated in the paper making process. In paper mills, large quantities of water are used in processes such as pulping, washing, bleaching, etc. Wastewater generated from these processes contains a variety of organics, impurities, and chemicals that need to be treated before it can be discharged or recycled.

Wastewater plate exchangers are a common type of wastewater treatment equipment based on the principle of heat exchange between wastewater and other media (such as fresh water or air) through a plate heat exchanger, which reduces the temperature of the wastewater or recycles the heat contained therein. These plate heat exchangers usually consist of a series of flat or corrugated plates, through which wastewater and other media flow between the plates to exchange heat.

These plate heat exchangers are usually made of corrosion-resistant materials to accommodate the various chemicals that may be present in the wastewater. Common materials include stainless steel and fibreglass. They play a key role in a paper mill's wastewater treatment system, helping the mill meet environmental discharge standards while conserving energy and resources.