Title:
Degradation of Colored Papers by Anaerobic Fermentation
Author(s):
Dubrovskis, V., Plume, I., Straume, I.
Document(s):
Paper
Poster
Abstract:
In Latvia and in other countries, wide variety of printed papers is used to promote goods. Colored newspapers, booklets and magazines are also produced using different colours and varnishes. Most of printed materials come into waste and pollute the environment. If such papers are burned directly, harmful gases are released into the air. Papers usually end up in municipal waste and landfills. If the papers are stored in municipal waste landfills, biogas (methane) is produced by anaerobic fermentation. In our previous study, we found out how much methane can be derived from number of unprinted paper types. This article shows the research results on amount of methane can be obtained from different printed papers. Anaerobic fermentation of 5 different printed papers provided in 14 laboratory bioreactors produces biogas (methane) yield from 0.177 Lg DOM-1 (0.043 LgDOM-1) to 0.328 LgDOM-1 (0.113 LgDOM-1). The more the paper was covered with paint or varnish, the less methane it could produce. This shows that the bacteria cannot decompose paint and varnish and therefore the colours accumulate in the environment. In order to reduce environmental pollution, it is necessary to review the use of paints and varnishes in the production of such papers.
Keywords:
anaerobic digestion, biogas, methane, municipal solid waste, paper
Topic:
Biomass Technologies and Conversion for Bioenergy
Subtopic:
Anaerobic digestion for biogas and biomethane production
Event:
28th European Biomass Conference and Exhibition
Session:
2CV.5.4
Pages:
484 - 487
ISBN:
978-88-89407-20-2
Paper DOI:
10.5071/28thEUBCE2020-2CV.5.4
Price:
FREE
