Energy from Wastewater
Why Not Use the Crude Oil from our Cities?
At our very feet lies a source of energy that fulfils all of our demands upon an economical, but also secure and equally environmentally friendly energy supply. Gaining energy from wastewater is a process that has proven itself over several decades.
The time it takes for an installed plant to pay for itself lie, in comparison to a conventional heating plant, between four and sixteen years, maximum, and this is at a life span of at least 50 years.
Systems to produce energy from wastewater can be installed in existing sewage canals, ideally when they are rehabilitated, or planned and implemented directly when a new canal system is built.
- A cycle that makes sense
To be able to recover energy from wastewater, a heat exchanger has to be installed in the sewage canal. If it cannot be built directly into the canal pipes, it can be retrofitted as needed and in modular form, as with the Therm-Liner. Subsequently, the heat exchanger is connected to a heat pump, which generates the heating or cooling output.
- Where is recovering energy most worthwhile?
Two factors are decisive to correctly locate energy recovery from wastewater: the actually available wastewater amount and the location of the recipient for the newly recovered heat. Both need to fit together, in order to be able to use the energy optimally.
- Efficiency pays
In addition, operating the heat pump can be optimised. In many cases, combining it with a central-heating boiler, but also a block-type thermal power plant can be used. Decisive are the demands which are placed upon the heating (or cooling) output and its availability and the system stability.