

Author: Panarotto Cláudia T. Cabral Alexandre Rodrigues Lefebvre Guy
Publisher: NRC Research Press
ISSN: 1496-256X
Source: Journal of Environmental Engineering and Science, Vol.4, Iss.2, 2005-03, pp. : 123-138
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
Deinking by-product (DBP), a cellulose-rich by-product produced in the early stages of the paper recycling process, has been used as alternative material for the construction of cover systems for municipal waste disposal facilities and acid-producing mine residues. Because of the high organic content of this material, covers constructed with it are susceptible to biodegradation and, thus, to changes in their properties with time. With the goal of identifying the biodegradation parameters that could influence the long-term behaviour of DBP covers, an experimental laboratory program was developed and a series of 15 samples of DBP were monitored in biodegradation tests for 400 d. Periods of intermittent water percolation allowed for collection of leachate. The evolution of gas and leachate production was monitored in terms of quality and quantity. According to the results obtained, the hydraulic and geomechanical properties of importance for a cover do not seem to be adversely affected by the level of biodegradation of the DBP or by mass loss.
Related content




Energy and valuable material by-product from firing Estonian oil shale
By Hanni R.
Waste Management, Vol. 16, Iss. 1, 1996-01 ,pp. :


Research of Environmental and Economic Interactions of Coke And By-Product Process
E3S Web of conferences, Vol. 21, Iss. issue, 2017-11 ,pp. :


Investigation on hydraulic properties of compacted GMZ bentonite used as buffer/backfill material
E3S Web of conferences, Vol. 9, Iss. issue, 2016-09 ,pp. :