EVALUATION OF BIODEGRADABILITY OF WASTE BEFORE AND AFTER AEROBIC TREATMENT
Journal Title: Civil and Environmental Engineering Reports - Year 2014, Vol 2, Issue 13
Abstract
An important advantage of use of an aerobic biostabilization of waste prior to its disposal is that it intensifies the decomposition of the organic fraction of waste into the form which is easily assimilable for methanogenic microorganisms involved in anaerobic decomposition of waste in the landfill. In this article it is presented the influence of aerobic pre-treatment of waste as well as leachate recirculation on susceptibility to biodegradation of waste in anaerobic laboratory reactors. The research has shown that in the reactor with aerobically treated waste stabilized with recilculation conversion of the organic carbon into the methane is about 45% higher than in the reactor with untreated waste stabilized without recirculation.
Authors and Affiliations
Monika SUCHOWSKA-KISIELEWICZ, Andrzej JĘDRCZAK, Zofia SADECKA
STRUCTURAL ASPECTS OF RAILWAY TRUSS BRIDGES AFFECTING TRANSVERSE SHEAR FORCES IN STEEL-CONCRETE COMPOSITE DECKS
At the steel-concrete interface, the horizontal shear forces that are transverse to cross beams occur due to joint action of the steel-concrete composite deck and the truss girders. Numerical analysis showed that values...
ELASTOMER SPACERS IN FIRE CONDITIONS
In the paper, fire resistance of linear joints seal made of elastomer spacers under standard fire conditions, and thermal degradation range of EPDM elastomeric spacers are investigated. The geometry of elastomer spacer j...
RESEARCH OF THE INTERACTION OF PILES WITH DIFFERENT LENGTHS AND THE GRILLAGE IN THE FOUNDATIONS OF HIGH-RISE BUILDINGS
The interaction of piles with different lengths and the grillage in the foundations of high-rise buildings is considered. The numerical modeling of the «base – foundation – superstructure» system is performed. The redist...
Dewaterability of thermal conditioned sewage sludge after anaerobic stabilization
Thermal pretreatment of sewage sludge influences the improvement of biochemical decomposition of sludge in the anaerobic stabilization process. At the same time the ratio of fermentation impacts on the effectiveness of s...
APPLYING ACTIVE THERMOGRAPHY IN THE NON-DESTRUCTIVE INVESTIGATION OF HISTORICAL OBJECTS
The paper pertains to the problem of historic building envelope investigation with the use of active thermography. Mainly emphasized is its application in the detection of different material inclusions in historic walls....