Most organic biowaste from cities is
processed into compost and biogas, used for energy recovery and nutrient
recycling back to land. This approach provides, however, low profit. At the
Bioenergy group we are applying novel biotechnologies to valorize and upgrade
different fractions of organic biowaste into high-valued bio-based products,
including – but not limited to – proteins, bio-succinic acid or bio-methane.
The project is in close collaboration with the Copenhagen municipality.
To operate and optimize bacterial or algal
processes for nutrient valorization and carbon recovery from urban organic
waste. To analyze the economy of the process by setting simple mass flow and
energy balance analysis.
The project will be developed
stepwise. In a first stage pretreated bio-waste provided by Copenhagen
municipality is characterized. Based on feedstock characterization, the
bioreactor operation is defined. The bioreactor is run for production of the
selected bio-based product, which productivity is optimized in terms of product
quality and quantity under relatively dynamic conditions (e.g., biowaste will
be regularly provided and quality may vary). Based on the experimental data,
the student will perform simple mass flow analysis of carbon, nitrogen and
phosphorus during the process and in the overall context of bio-waste
management at the city level, taking into account the end-use of the bio-based
product. Energy and cost analysis will be also performed to assess the
feasibility of the concept as a solution for the Copenhagen municipality.
I samarbejde medCopenhagen Municipality