Pyrolytic characteristics of sewage sludge

Thipkhunthod, Puchong; Meeyoo, Vissanu; Rangsunvigit, Pramoch; Kitiyanan, Boonyarach; Siemanond, Kitipat; Rirksomboon, Thirasak

doi:10.1016/j.chemosphere.2006.01.002

Cited by 96 publications

(70 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The detailed chemical composition of this sludge was reported elsewhere [13]. It contains around 35 wt% inorganic matters, mainly in the forms of iron, alumina, silica oxides, and carbonates as well as up to 50 wt% of organic matters.…”

Section: Production Of the Sewage Sludge Derived Charmentioning

confidence: 99%

Surface characterization and dye adsorptive capacities of char obtained from pyrolysis/gasification of sewage sludge

Jindarom

Meeyoo

Kitiyanan

et al. 2007

Chemical Engineering Journal

Self Cite

170

View full text Add to dashboard Cite

Section: Production Of the Sewage Sludge Derived Charmentioning

confidence: 99%

Surface characterization and dye adsorptive capacities of char obtained from pyrolysis/gasification of sewage sludge

Jindarom

Meeyoo

Kitiyanan

et al. 2007

Chemical Engineering Journal

Self Cite

170

View full text Add to dashboard Cite

“…The sludge, by nature, is highly heterogeneous and considered a mixture of various compounds, both organic and inorganic. It was thought that sludge from different sources would have different compositions both qualitatively and quantitatively, hence the variety in terms of the energy potential and pyrolysis properties [2,3]. However, practical design of pyrolysis process of either mixture or pure material inevitably requires an understanding in the decomposition kinetics.…”

Section: Introductionmentioning

confidence: 99%

Describing sewage sludge pyrolysis kinetics by a combination of biomass fractions decomposition

Thipkhunthod

Meeyoo

Rangsunvigit

et al. 2007

Journal of Analytical and Applied Pyrolysis

Self Cite

View full text Add to dashboard Cite

“…Pyrolysis appears to produce fewer pollutants than incineration, as it concentrates the heavy metals in a solid carbonaceous residue where the leaching of these materials is not great as the ashes from incineration [11][12][13][14].…”

Section: Introductionmentioning

confidence: 98%

Semi-pilot scale sewage sludge pyrolysis and characterization of obtained fractions by thermal analysis

Viana

Rangel

Júnior

et al. 2015

J Therm Anal Calorim

View full text Add to dashboard Cite

Sewage sludge pyrolysis is an alternative to incineration and presents as advantages the generation of three fractions: gas (non-condensable volatiles), liquid (condensable volatiles) and solid (carbonaceous coke). In this context, the purpose of the present study is to quantify and to characterize by thermal analysis the fractions produced by sewage sludge pyrolysis in semi-pilot scale. The semi-pilot pyrolysis was performed in two steps, the first dynamic up to 500°C, followed by an isothermal step at this temperature for 3 h. The solid and liquid fractions produced were analyzed by TG/DTG/DTA, and the volatiles were analyzed by thermogravimetry coupled to mass spectrometry (TG-MS). The influence of different pyrolysis conditions (dynamic and isothermal) was verified by differential thermal analysis (DTA) characterization and by the higher heating value (HHV) of the liquid fractions produced by sludge pyrolysis. In total, 60.1, 28.6 and 11.3 % of the sludge initial mass were obtained, respectively, as solid, liquid and gas pyrolytic fractions. The liquid fraction was composed of aqueous and oily phases. By TG-MS, the volatile compounds detected in pyrolysis were as follows: H 2 O, C 3 H 6 , CO 2 , NO 2 , C 4 H 8 , SO 2 , C 6 H 6 and C 7 H 8 . The aliquots obtained at higher time periods by isothermal pyrolysis at 500°C showed higher DTA exothermic peaks and higher HHV values as well. Sewage sludge isothermal pyrolysis at 500°C produces a liquid fraction with HHV of 36.2 MJ kg -1 , indicating that it can be used as renewable energy source. A good correlation exists between total DTA peak area of the oily fractions obtained from sewage sludge pyrolysis and respective HHV values, indicating that it can be used to estimate these values from corresponding DTA curves.

show abstract

Pyrolytic characteristics of sewage sludge

Cited by 96 publications

References 28 publications

Surface characterization and dye adsorptive capacities of char obtained from pyrolysis/gasification of sewage sludge

Surface characterization and dye adsorptive capacities of char obtained from pyrolysis/gasification of sewage sludge

Describing sewage sludge pyrolysis kinetics by a combination of biomass fractions decomposition

Semi-pilot scale sewage sludge pyrolysis and characterization of obtained fractions by thermal analysis

Contact Info

Product

Resources

About