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Optimization Of The Thermal Utilisation Of Sewage Sludge In An Installation With A Bubbling Fluidised Bed Reactor, Jerzy Baron, Malgorzata Olek, Witold Zukowski
Optimization Of The Thermal Utilisation Of Sewage Sludge In An Installation With A Bubbling Fluidised Bed Reactor, Jerzy Baron, Malgorzata Olek, Witold Zukowski
Witold Zukowski
Tests on the burning sewage sludge so as to minimise the emissions of CO, NOx and dust are described. The fluidised bed process used sewage sludge with 50 - 80% of water together with wood chips. The results obtained indicate that the NOx concentration in the flue gases can be reduced by controlling the fuel/air ratio. The conditions can be optimised by using sufficiently high temperatures and keeping the CO concentration down. It is proposed that the quality of the operation of the installation should be assessed by means of a dimensionless parameter, the toxicity index and supporting evidence is …
Small Scale Biomass Incinerator With A Bubbling Fluidised Bed. Ii. Combustion Of Feathers And Mbm, Jerzy Baron, Stanislaw Kandefer, Malgorzata Olek, Malgorzata Pilawska, Witold Zukowski
Small Scale Biomass Incinerator With A Bubbling Fluidised Bed. Ii. Combustion Of Feathers And Mbm, Jerzy Baron, Stanislaw Kandefer, Malgorzata Olek, Malgorzata Pilawska, Witold Zukowski
Witold Zukowski
The paper presents the results from a study of the combustion of wastes of animal origin - feathers and meat and bone meal in a 1.5 MW bubbling fluidised bed reactor. The process of thermal utili-sation is stable and short - term fluctuations on the composition of the wastes are not a problem, since the operational parameters of the combustor are constantly monitored and controlled. The process does not require conventional supporting fuel and the level of CO in the flue gases is com-parable to that observed with some low quality coals, but NOx and SO2 emissions are present, because …
Distribution Of Heavy Metals Between Gas, Liquid And Solid Wastes From Sewage Sludge Combustion, Jerzy Baron, Witold Zukowski, Stanislaw Kandefer
Distribution Of Heavy Metals Between Gas, Liquid And Solid Wastes From Sewage Sludge Combustion, Jerzy Baron, Witold Zukowski, Stanislaw Kandefer
Witold Zukowski
Results are presented on the partitioning of metals between the different waste streams produced from the co-combustion of sewage sludge with wood chips in an installation with a bubbling fluidised be combustor, equipped with a flue gas cleaning system. The system consisted of a dust separator and two wet scrubbers in series. For selected metals, their concentrations were determined in the fuel and in the ashes as well as carried with the flue gas stream. Heavy metals were mostly found in the dust carried with the flue gases, either as vapours condensing on solid surfaces or present in the fines …