Moderation:NN
For around 35 years, Germany has been recycling paper, metal and plastic very diligently. There is an established recycling industry. Nevertheless, more and more new processes are now emerging. Why? Are there any problems?
A scientific and technical analysis provides some clues. Economics and ecology can use these as a guide to decide what to do and what not to do.
Moderation: Wolfgang Gerhartz
Recycling carbon black from old tyres is nothing new. Work on this technology has been going on for over 40 years. Carbon black is a relatively valuable industrial raw material whose production through selective combustion is much more energy-intensive than recovery from used tyres. Recycling is highly valued. Nevertheless, there is still "a lot of room for improvement" in the recovery rate. Why is that?
Moderation: Wolfgang Gerhartz
We are annoyed by every picture of plastic waste in the sea. What happened there is irresponsible. News about marine littering is piling up. It's emotionally moving. But what facts do we know? How great is the potential danger?
What can be done? What knowledge gaps still exist? The short lecture "Plastic waste - knowledge and speculation" deals with these questions.