Low temperature conversion (LTC)--an alternative method to treat sludge generated in an industrial wastewater treatment station--batch and continuous process comparison.
In this work low temperature conversion (LTC) process was applied in a dried sludge from a petrochemical industry wastewater treatment station located in Rio de Janeiro, Brazil. The process was performed in two modes: continuous and batch-scale. This process produced a pyrolysis oil (continuous 14%; batch-scale 40% yield); pyrolytic char (continuous 46%; batch-scale 56% yield); gas and water. Pyrolysis oil fraction was analyzed by gas chromatographic mass spectrometry (GCMS) and the main components identified were toluene, ethylbenzene, styrene, isopropyl benzene, alpha-methylstyrene, butanenitrile and 1,3- biphenyl propane. Metals content, sulfur content and calorific value have been determined for the pyrolysis oil fraction. The results showed that the pyrolysis oil obtained could be used for industrial purposes and/or as energetic matrix.
Vieira
G E G
GE
Universidade Federal Fluminense, Instituto de Química, Departamento de Química Orgânica, Programa de Pós Graduação em Química Orgânica, Niterói-RJ, CEP 24210-150, Brazil.
Romeiro
G A
GA
Sella
S M
SM
Damasceno
R N
RN
Pereira
R G
RG
D019149:Bioreactors; D003080:Cold Temperature; D004602:Elements; D008401:Gas Chromatography-Mass Spectrometry; D007220:Industrial Waste; D012722:Sewage; D014865:Waste Disposal, Fluid / Q000379:methods*; D018508:Water Purification / Q000379:methods*
D004602:Elements; D007220:Industrial Waste; D012722:Sewage