DBPapers
DOI: 10.5593/SGEM2014/B42/S19.064

QUALITATIVE ANALYSIS OF NEGLECTED METHODS OF CARBON SEQUESTRATION

J. Ladomersky, E. Hroncova
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-16-2 / ISSN 1314-2704, June 19-25, 2014, Book 4 ,Vol. 2, 487-494 pp

ABSTRACT
Biological waste represents a resource of greenhouse gases. But various ways of
treatment with biological waste caused different greenhouse gas production.
Considering greenhouse gas production, the energy, material, and substance advantages of waste utilisation can differ noticeably, given the various processes of biological waste handling. Under certain conditions, waste treatment does not necessarily lead to carbon dioxide production in the short-term – when organic mass is applied into the product and in multiple recycling. The pyrolytic treatment of biological waste, producing pyrolytic coal (coke), and its subsequent deposition into soil represents a hitherto underutilised potential reduction of CO2 and CH4 production from an otherwise unutilised organic waste. In Slovakia, there is significant interest in investments in the production of compost from biologically decomposable municipal waste and sludge from wastewater treatment plants for energy uses. According to our experience, the appropriateness of energycompost utilisation for specific energy devices has to be verified from the technical standpoint as well as regarding air pollution during the trial operation for appropriateness verification of new fuel.
Through the anaerobic digestion of separated bio waste, or of suitable industrial waste, biogas and digestate are simultaneously obtained as soil fertilizer, usually after
composting. CO2, NOx, and low concentrations of other substances are the products of biogas combustion. Environmentally appropriate handling of waste dump gases represents a substantial contribution to the reduction of anthropogenic emissions of greenhouse gases. Incorporating organic carbon into soil is an inadequate way of reducing greenhouse gas production. A potential for CO2 sequestration also has some inorganic waste. This paper describes an elementary qualitative analysis of selected procedures of carbon sequestration using wastes.

Keywords: pyrolysis, sequestration, biological waste, red mud, soil