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The effect of bioleaching on sewage sludge pyrolysis

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Feb 2016Publisher:Elsevier BVJournal:Waste Management, volume 48, pages 383-388 (issn: 0956-053X,

Authors: Shiming Liu;

Baihui Cui; Zhihua Chen;

Mian Hu; Bo Xiao;

Dabin Guo;

doi: 10.1016/j.wasman.2015.10.002

pmid: 26481636

The effect of bioleaching on sewage sludge pyrolysis

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Abstract

The effects of bioleaching on sewage sludge pyrolysis were studied. Sewage sludge was treated by bioleaching with solid concentrations of 6% (w/v), 8% (w/v), 10% (w/v). Results showed that bioleaching treatment could modify the physicochemical properties of sewage sludge and enhance the metals removal. The optimum removal efficiencies of heavy metals were achieved with solid concentration of 6% (w/v) bioleaching treatment: Cu, 73.08%; Zn, 78.67%; Pb, 24.65%; Cd, 79.46%. The characterization results of thermogravimetric analysis (TGA) showed that the bioleached sewage sludge with a 6% (w/v) solid concentration treatment was the easiest to decompose. Pyrolytic experiments of bioleached sewage sludge were performed in a laboratory-scale fixed bed reactor. Results indicated that bioleaching treatment greatly influenced the product yields and gas composition.

Related Organizations

Chinese Academy of Sciences
China (People's Republic of)
Chinese Academy of Sciences
China (People's Republic of)
Huazhong University of Science and Technology
China (People's Republic of)
Chinese Academy of Sciences
United States

Keywords

Hot Temperature, Sewage, Acidithiobacillus, Hydrogen-Ion Concentration, Wastewater, Waste Disposal, Fluid, Zinc, Bioreactors, Lead, Metals, Metals, Heavy, Spectroscopy, Fourier Transform Infrared, Copper, Water Pollutants, Chemical, Cadmium

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	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	44
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%