The Possibility of Using Potamogeton Crispus for Energy Purposes

Abstract

Eutrophication is a very undesirable process, because the lake in which this process takes place losses most of its amenities. The deterioration of the water quality in the case of eutrophicated reservoirs is caused by the inflow of biogenic compounds that accelerate the development of plankton and higher forms of plant life. A perfect example of such a reservoir is Winiary Lake, located in the city of Gniezno in the Wielkopolska Voivodeship. The lake is located in the city centre, so it is exposed to strong anthropogenic pressure, which led to the degradation of the reservoir. There have been several attempts to restore the Winiary Lake, with various results. Currently, the condition of the lake has improved and it is overgrown with macrophyte, Potamogeton crispus---Curly-leaf pondweed. This pondweed is regularly pruned to extend its vegetation period. In this work the preliminary results of heating value and heat of combustion of the collected biomass will be presented.