30 May 2005
Maintaining that sewage is a utilizable low-temperature waste heat source, this paper first presents an
analysis of the features of sewage source heat pump, as well as the current situation of sewage discharge
and heat pump application in Northeast China. Then it points out the feasibility and the great prospects
that in Northeast China, the second-class outlet sewage or untreated sewage from urban sewage plant can
be utilized as heating/refrigerating source for water source heat pump.