| Abstract [eng] |
Waste management is one of the most relevant problems of environmental protection. Landfills constitute an unavoidable component of the waste management system. The work discusses the problem of landfill odours. Aims of this work are: to evaluate the influence of the thickness of construction and demolition debris cover on reduction of the odorous emissions from landfill, to evaluate the influence of the construction and demolition debris cover on reduction of the odorous emissions from landfill for short (1-2 days) and longer (more than 3 days) periods, to prepare the simulation of the odour dispersion around landfill site considering different odour control scenarios (rare covering of waste, application of building debris for daily waste covering and minimization of waste tipping area). Concrete and brickwork building debris could be applied for more efficient odour reduction from municipal waste landfills. Upon covering waste with the 10 cm building debris layer, odour thresholds in 1-2 day period decrease 51.0-79.7 %. The building debris layer thinner than 10 cm is insufficient to cover waste for longer than 3 days period. Upon covering waste with the 5 cm layer, instability of odour thresholds was recorded. Simulated odour control scenarios show that temporal waste covering and application of building debris effectively reduces landfill odour emissions. Odour concentrations at the same places decrease more than twice and do not exceed the sanitary protection zone of the landfill site. Structure: introduction, review of literary sources, description of the methodology, results of the experimental tests, description of the dispersion model and input data, results of the odour dispersion modelling, conclusions and recommendations, references. Thesis consist of: 78 p. without appendixes, 48 pictures, 17 tables, 86 bibliographical entries. Appendixes included. |
