We have already mentioned some questions that we would like to answer. Those are the main Questions we are the most interested in to answer by means of research and/or an interview with an Airline.
The following Questions are the ones we want to the interviewee
Interview Questions:
1. how much waste does you Airline produce? (per day, week, flight)
2. Do Airlines recycle?
3. How do you reduce the Food waste? Do you even try reducing it?
4. What happens with the leftover Food (not served yet)?
5. Where does the leftover Food from planes go? (since it is specially prepared)
6. How has the current virus effected the Food waste?
7. How can passengers help reducing the waste?
Team Sangeetha & Yllza
W12: 5/13 Wednesday * 2020
Special - your own pace (eigenes Tempo) - Not required for "real life" project teams, going for a publication on dontwastemy.energy!
(in case of questions you can get in contact on Wednesday, 8:00-9:40)
To the program & tasks >
Due date: Tuesday 19 Mai, 8 PM.
Introduction to business models
When we talk about a business model, we mean ”the rationale of how an organisation creates, delivers, and captures value from economical, social or other point of view”. The process of business model construction is part of business strategy. Therefore, designing the right business model for one's company is important. It is part of the business development and business strategy process and involves design methods. If the company considers that the target is to reduce consumption of critical raw materials, they may need to adapt their business model towards innovation for sustainability.
A sustainable business model is a business model that brings positive impacts to society while staying within the environmental limits of the planet.
It may be necessary to answer questions concerning: key partners, key activities, key resources, value propositions, customer relationships, channels, customer segments, cost structure, and revenue streams. More...
W11: 5/06 Wednesday * 2020
Special - Distance learning experiment VI
Good morning! To the program & tasks >
Introduction
Recycling is a complicated issue. Recycling operations in general may be categorized as open-loop or closed-loop operations. Closed-loop recycling, which can be called up-cycling, means recycling a commodity back to its original state of packaging. The waste or by-product of one of the processes, or the product itself, is used in the closed-loop recycling method to produce another product of the same kind or category.
For example, recycling an aluminum beverage can be an example of closed-loop recycling to produce another aluminum product, maybe even another beverage can. Open-loop recycling, also known as down-cycling, means that a component can be recycled into certain forms of goods that use requirements of lower quality materials. For example, when plastic bottles are
recycled, they can not necessarily be transformed back into containers due to a degradation in the consistency of the material, such as how it looks and feels. More...
Have you ever wondered what happens with the leftover Food on the airplane? We would like to deal with this topic, since we like to travel.
- What exactly happens to the food on the planes that is left?
- Do people show consideration for the food on the planes? e.g. When you go to a restaurant and order food, you look at the fact that you eat everything or take it into consideration, because you pay for it
- What happens to the food that is not distributed because there is too much of it?
- What happens with the packaging of the Food?
These are the Questions that we would like to answer by means of research and an interview with an Airline.
Further questions will certainly arise during the research..
Team
Sangeetha & Yllza
Team: Nina & Elena
What are Critical Raw Materials?
CRMs are materials which are significantly important for companies in order to manufacture their products but have a high-risk associated with their supplier. This high-risk is that the materials are very rare and unique and there is a lack of substitutes for them. Nowadays the supply of these raw materials is increasingly coming under pressure. In order to control this problem, the EU commission has created a list of CRMs and is monitoring the CRM market at all times. Here are some examples: More...
Metallurgical process
The metallurgical process is divided in 3 different ways:
Pyrometallurgy is a branch of extractive metallurgy. It consists of the thermal treatment of minerals and metallurgical ores and concentrates to bring about physical and chemical transformations in the materials to enable recovery of valuable metals. Pyrometallurgical treatment may produce products able to be sold such as pure metals, or intermediate compounds or alloys, suitable as feed for further processing. Examples of elements extracted by pyrometallurgical processes include the oxides of less reactive elements like iron, copper, zinc, chromium, tin, and manganese. Link: [Pyrometallurgy]
Hydrometallurgy is a technique within the field of extractive metallurgy, the obtaining of metals from their ores. Hydrometallurgy involve the use of aqueous solutions for the recovery of metals from ores, concentrates, and recycled or residual materials. Processing techniques that complement hydrometallurgy are pyrometallurgy, vapour metallurgy, and molten salt electrometallurgy. Link: [Hydrometallurgy]
Electrometallurgy is a method that uses electrical energy to produce metals by electrolysis. Electrometallurgy is usually the last stage in metal production and is therefore preceded by pyrometallurgical or hydrometallurgical operations. The electrolysis can be done on a molten metal oxide (smelt electrolysis) which is used for example to produce aluminium.
Link: [Electrometallurgy]

Picture: Pyrometallurgy process
Trade off in recycling
Metal can theoretically be recycled again and again without degrading their properties. The quality of grade «G» of a metal is a measure of purity of the product. It describes in which way or method the different metals will be prepared and recycled. For the different «G’s» are different ways. There is an inverse relationship or a trade-off between the quality of the material recovered and the amount of material required for the purification or metallurgical processes. link: [Trade off in recycling]
Vocabulary:
intermediate compounds - Zwischenverbindungen
obtaining - erhalten
preceded - vorausgegangen
Quiz: [link]
Silvan & Luana
Recycling is very important for our earth. It's important that every country can handle their own recycling, so we haven't to send the rubbish to other countries. Nations like Ghana, Nigeria, India, Vietnam, China, Indonesia, etc suffer because they don't have their whole recycling and waste management systems up to a certain level. Matthew Cleary, pointed out that legislation has a key role to play, so for example you could taxate landfill and that could stimulate recycling but on the other hand he says you can also let consumers pay for the recycling by paying a little bit extra for the product itself so that a consumer actually pays for the recycling after the life of the product she or he bought. But he also said it would increase the price of a product a little bit more and it would also maybe trigger the consumers to think about if they really need a product.
Team: Dominic & Giorgio
Quiz:


Logistics for recycling
High-quality reverse logistics are essential to close the loop of a product’s life cycle and help transition to a circular economy. Reverse Logistics are the operations related to the process of moving goods
from their typical final destination, for the purpose of capturing value or proper disposal.
This can include many things, such as the collection and transportation for returns,
repairs, refurbishment, recycling, reuse or re-manufacturing, etc. Issues such as data security, privacy and corporate secrets are serious concerns for businesses who decide to recycle their unwanted IT and computer equipment.

Two Case Studies
In the social and life sciences, a case study is a research method involving an up-close, in-depth, and detailed examination of a particular case. For example, a case study in medicine may examine a specific patient a doctor treated, and a case study in business might study a particular firm's strategy. Generally, a case can be nearly any unit of analysis, including individuals, organizations, events, or actions. In the two-case study it is tested several times and several methods are used. Two case studies are done in order to get better and more powerful singe-case studies. The more case studies, the better the result. One-case Studies can also bring good results, however, it is not as exact as two case studies. In two case studies you use different date collection methods. You can also have a more than two case studies. The results will get more specific.
Quiz
Team: Matteo & Alex