Sewage treatment equipment can effectively treat domestic sewage and industrial wastewater in urban areas and prevent sewage and pollutants from directly flowing into water areas, which is of great significance for improving ecological environment, upgrading urban quality and promoting economic development.
The so-called primary sewage is the untreated domestic or industrial wastewater directly discharged by the city. At present, the primary sewage directly enters the sewage source heat pump system for heat exchange, and provides indoor cooling and heating for urban buildings with a small amount of electricity consumption. There are several technical difficulties to be overcome in sewage reuse: blockage, corrosion and heat exchange efficiency.
After the urban primary sewage directly enters the sewage heat exchanger for heat exchange, the heat after heat exchange is transferred to the room through the heat pump in the sewage source heat pump.
The reuse of urban primary sewage has the advantages of energy saving, environmental protection and no pollution.