Incineration of oily sludge in circulating fluidized beds may be an effective way for its management in some cases.
The results of this study, applied at the earliest stages of the design of the process, assist evaluation of the feasibility of such system compared to a current disposal process for the drying and incineration of sewage sludge.
The main disposal routes of sludge are incineration, sanitary landfill, or use for land-based applications including structural soil improvement, soil buffer, and soil amendment [2].
The objectives of this study were to evaluate and compare the environmental impacts of food waste management systems including anaerobic digestion, co-digestion with sewage sludge, and incineration of dried food waste from the time of generation to final disposal.
Considering the practical difficulties for the disposal of these two wastes, fry-drying presents a potentially convenient method for their combined elimination by incineration of the final fry-dried sludge.
Among the four major modes of sludge disposal; sea discharge, landfill, incineration and land application, now a days most of industry disposing the sludge by only land application.
Finally, techno-economical analysis of the process shows a higher cost than farmland re-use but steam activation of sludge seems to be competitive towards incineration.
Moreover, the use of sludge on land, principally in agriculture, compared to incineration or sanitary landfill, has lower costs.
The beaches were closed because of sludge.
Their heads are often just oozing piles of sludge.
In this study, binary systems of geopolymers were produced by using mixtures of metakaolin (MK), a well-known aluminosilicate raw material, and a residue from sewage sludge incineration: sewage sludge ash (SSA).
