TITLE:
Improving Municipal Solid Waste Land Filling Disposal Process: Experiments with a Laboratory Scale Rotary Kiln
AUTHORS:
Jean Fidèle Nzihou
KEYWORDS:
Land Filling; Greenhouse Gases; Pollutants; Rotary Kiln; Lifespan
JOURNAL NAME:
Journal of Environmental Protection,
Vol.4 No.8,
July
23,
2013
ABSTRACT:
Developing
countries often face the challenge of managing continuously growing quantity of
municipal waste. Waste is often disposed of by stockpiling and
land filling because these have been found the cheapest waste
disposal methods in the world. Unfortunately, these waste disposal methods are
often source of visual pollution, water contamination and greenhouse effect gas
emissions. Waste disposal by incineration has been
found effective and now is one of the mostly used waste disposal method in
several developed countries. Nevertheless, setting up appropriate waste
incinerator requires a good of the combustion process. Unfortunately, direct
studies on industrial facilities are not easily feasible because of technical
issues and financial limitations. Studies and throughout testing frequently
need to be carried out at laboratory scale. Work herein reported first
overviewed operation conditions of the landfill facility in the town of Ouagadougou.
In the second time for incineration simulation, batch experiments are carried
out with a rotary kiln furnace to study the effects of the residence time on
emissions of NO, NO2, CO, CO2 and SO2 in the
atmosphere. For each rotation speed, emissions of NO, NO2, CO,
CO2 and SO2 from the incineration of a household
combustible fraction model waste consisting of wood (53%), cardboard (25%) and plastics (22%)
have been recorded. The lifespan of the land filling facility with incineration
has been estimated. Our work show that it may be improved up to
roughly three times that of simple land filling. Visual pollution maybe
drastically reduced and atmospheric pollution reduced.