Peter Eyerer

• Professor Dr.-Ing Dipl.-Ing
• Consultant at Fraunhofer Institute for Chemical Technology

Cigarette butts are one of the most poisoning (watersoluble nicotin an many others) waste problems for water and soil on earth. This is the toxic aspect of butts. The sencond heavy aspect is the possible degradation to microplastic of the biopolymer Cellulse acetate of the filter. Does anybody know or find scientific work regarding this microplastic state of CA during biodegradation?

Your detailed answer would be appretiated most.

Peter

Tire wear as particels (nano mm up to mm large ) is about 40 percent of microplastic problem.

what are your ideas to solve or

reduce this huge environmental hazard?

teaching material science at Applied University (Duale Hochschule Baden Württemberg) for one trimester, about 30 students, 3rd class

1)applying frontal lecture (about 50 %) in presence lecture combined with 30 % discussions, 5 % exercises, 10 % examples of parts and 5 % videos

2) the same also in presence in the class room but additional a combination with flipped class room methodology (all lecture material and videos of the teachers complete lesson are given in advance to the students and additional about 40 recommended you tube videos; the students have been asked to prepare themselves before lessons.

3) the same like 2 but online and no presence

Measuring the learning efficiency by asking 12 test questions before and after the course the results are this:

1) 30 % ; this range is usual for about 15 years of my teaching; in former times the result at 90 % frontal lecture the learning efficience was about 13 % plus minus 2 %

2) 25 % ; it is a little lower than 1). The reason could be unused methodology for students:

3) 0 % ; this was my first time doing online teaching (due to Corona); I am shocked as you can imagine;

What do you think are the reasons for this dramatic 0% result of learning efficency? The students did not learn anything!

Most of us use tooth paste more times a day. The empty tube we throw away. I wondered how empty the tube really is. This does not sound being Research? I began to collect empty tubes systematically and I can tell you now: the residual mass of tooth paste in an empty tube is 5 to 20 %, depending on tube construction. The everage lies up to 8 %. Worldwide we consume about 15 Billion of tooth tubes annually. So we throw away 120 000 tonns of tooth paste which has a value of about 1, 2 Billion $. The environmental problem is: how do we neutralise this uge quantity of tooth paste ? Burning with emissions? Solve it in Oceans? Dig it in waste dumps?

Only one example of residual values of rest-products.

Do know further examples of resdiuel waste in packaged products with ernormous masses?

I would be very intrested in reading your experiences.

Thank you for answering!!

Peter

We all use face masks many hours a day. I wonder what are your items you like to be improved.

We have the opportunity to write an application for support to a sponsor. Your answers will help us a lot.

Thank you for answering.

Peter Eyerer

in Scholar Google I have over 2000 Citations, in Research Gate only 1319.

Thank you for explaining. Maybe Scholar ist better organized?

Peter

Greta Thunberg began one year ealier in August 2018 to demonstrate for more actions in improving our climate. Since this kids all over the world demonstrate on Fridays for Future. Some groups of them began to act. Most of them are still demonstrating. This is great and has moved a lot up to now. But we think young people could go on acting to solve real environmental problems together with society and economy. They should rise the pressur by showing what has to be done actively.

Therefore we are asking for problems they really can work on successfully and f.e. improve CO2 emissions or reduce drinking water consumption or help to reduce the rabbish in companies or help to save food for poor persons aso....I am looking forward to reading your suggestions.

Peter