Study visit 3 - Landfill (Högbytorp)

Date: 17/02

Time: 08:00-13:00

Description:

Högbytorp is a landfill with a lot of interesting research connected to both landfill and circular economy. The visit will include a description of the facility as well as a presentation about interesting research going on at Ragn Sells

Please, sign up for study visit 3 through the doodle here Links to an external site. no later than 14:00, Monday, 7th Feb. 

Preliminary schedule:
• 08:00 Bus from KTH (departure at Lindstedtsvägen 3. Boarding starts at 7:45)
• 08:45 Arrive fika
• 09:00 Presentation (Graham Aid, Ragn-Sells AB), Presentation slides Download Presentation slides
• 10:00 Tour
• 11:15 Small lunch
• 12:15 Return bus

______________________

Task connected to the visit to be submitted on Canvas on assignment “Task Study Visit 3”:

1. 

Based on your notes from the visits, sketch a process-flow diagram of the visited plants. A process-flow diagram uses “boxes” for processes and “arrows” for flows of material and energy.

Below are some questions to bear in mind when analysing a process:

  • What are the material inputs and outputs?
  • What are the energy inputs and outputs?
  • Where do materials come from and where do they go?

You should include key processes and cleaning steps. If possible, quantify the flows (e.g. 1 ton waste going in, 200 kg of ashes going out sent to special landfill). It is not necessary to describe the processes (e.g. “combustion in moving-grate furnace” or “combustion” are both equally fine).

The main flows and processes should be included for a “pass”.

Software tip: the examples provided on Canvas/Files/Assignments ( Download Example of flowcharts.docx

) have been made using the freeware “yEd” but you are free to use any software you like (e.g. draw.io,…) and even “paper and pencil”!

_________________________

2.

Based on the presentation, please give your own reflection on one of the research projects you found most interesting. Maximum half a page.