In the field of ‘renewable energy resources’ formation of biogas is an important option. Biogas can be produced from biomass in a multistep process called anaerobic digestion (AD) and is usually performed in large digesters. Anaerobic digestion of biomass is mediated by various groups of microorganisms, …

Computers create environmental problems. Their production requires electricity, raw materials, chemical materials and large amounts of water, and supplies (often toxic) waste. They poison dumping sites and pollute groundwater. In addition, the energy consumption in IT is growing exponentially, with and …

Over the past few years the terms 'fair trade', 'sustainable' and 'organic' have become more present in combination with tea products in the supermarkets. These terms are used for many different goals. Some suppliers actually try to provide the consumer with a product that has been produced following …

While the notion of autarky is often contested in terms of feasibility and desirability, art and design projects that deal with autarky seem to moreover suggest positive socio-cultural and ecological effects of autarkic living. A social network model of autarky is introduced to unify these seemingly …

This working paper is the introduction and exploration of the theme 'Value of waste' for the Energize festival 2015. What is the value of waste? Based on ideas concerning the lifecycle of materials it depends on where you are in this cycle: have you consumed material, then what remains is usually waste …

This books describes the content, goals and methods used in the course Research & Development/New Media Art Practices. ‘It opened up research terrains, and confronted me with art practices I had never even thought of’ said a university student when asked what she had gained from the course Research & …

In our vision engineering students become sustainable practitioners by focusing on their learning process instead of focusing on their engineering results. By focussing on the learning process we create a learning environment in which there will be innovation because it’s permitted (or even requested) …

Metagenomics (for biogas production).

Renewable energy is often suggested as a possible solution for reducing greenhouse gas emissions and decreasing dependency on fossil energy sources. The most readily available renewable energy sources in Europe, wind, solar and biomass are dispersed by nature, making them ideally suited for use within …

The possibilities of balancing gas supply and demand with a green gas supply chain were analyzed. The considered supply chain is based on co-digestion of cow manure and maize, the produced biogas is upgraded to (Dutch) natural gas standards. The applicability of modeling yearly gas demand data in a geographical …