Dear Author, I would like to ask, how could you separate the cellulose-content waste from the other communal wastes to gain ONLY the papers? Or the technology does not contain a sieve alone? Thank you in advance for your answer.
Published by Katalin Kiss, Process engineer at Budapest Sewage Works Pte Ltd.
I would like to ask, how could you separate the cellulose-content waste from the other communal wastes to gain ONLY the papers? Or the technology does not contain a sieve alone? Thank you in advance for your answer.
1 Comment
The first screening can be done as usual with a bar screen or so. That will separate the bigger unwanted particles like plastic, condoms, sanitary towels and most of the human hairs. The cellulose fibres are much smaller. These can be filtered out by the use of a fine-screen. This was first discovered when fine screening was used as a pre treatment for MBR installations in The Netherlands.
Research focusses mostly on the recycling of the cellulose. However it is worth to keep in mind that by removing cellulose fibers from the influent, the COD load to the WWTP is also reduced. This lead to less electricity consumption in the aerated circuit. Also a very good thing for the environment.
More info:
www.solis.nl/producten/fijnfilter
https://www.youtube.com/watch?v=2Kd-rui0_YI
Published by Drewes Zuur, Chemisch Technoloog