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Book ChapterDOI

Sewage Sludge as Source of Energy: Experimental and Numerical Investigations of Thermochemical Conversion of Sewage Sludge via Pyrolysis

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TLDR
In this paper, the authors mainly focused on the energetic conversion of Tunisian sewage sludge (SS) into second generation bio-energy using pyrolysis process using biochar.
Abstract
This study is mainly devoted to the energetic conversion of Tunisian sewage sludge (SS) into second generation biofuels (bio-oil, syngas and bio-char) using pyrolysis process. In fact, urban wastewater treatment operations has generated increasingly large quantities of sewage sludge (SS) (around 2 million tons/year in 2009, ONAS 2010) in Tunisia, since 1974—date of implementation of the first wastewater treatment plants (WWTP).

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Journal ArticleDOI

The Ecological Risk Assessment and the Chemical Speciation of Heavy Metals in Ash after the Incineration of Municipal Sewage Sludge

TL;DR: In this article, the authors presented the research results on the mobility of heavy metals in sewage sludge ash after its incineration and suggested a new formula, which took into consideration more factors influencing the risk of the contamination of a water-soil environment with heavy metals.
Journal ArticleDOI

Risk assessment of soil contamination with heavy metals from sewage sludge and ash after its incineration

TL;DR: In this paper, a new formula was suggested for the risk assessment of the accumulation of heavy metals in soil (the water and soil environment risk index), which covers a wider range of parameters in comparison to the formulas applied so far.

Критерии выбора способа утилизации отходов очистных сооружений

TL;DR: A generalized algorithm for studying waste composition and choosing procedure for disposal of sewage sludge produced at urban and rural wastewater treatment plants after its biological treatment or secondary treatment in bioreactors is proposed in this paper.
Book ChapterDOI

Pyrolysis of Municipal Sewage Sludge within a circular economy vision: Production of sustainable Biofuels and Economic Biofertilizers

TL;DR: In this article, the authors used pyrolysis reaction to produce renewable bio-oil, syngas, and nutrient-rich bio-fertilizers (pyrochar or biochar) from Municipal Sewage Sludge (MSS) via the innovative Pyrolyis process.
References
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Journal ArticleDOI

Towards sewage sludge based biofuels via thermochemical conversion – A review

TL;DR: In this paper, a co-processing of sewage sludge with biomass improves the fuel's characteristics and enhances the processes efficiency, while diluting the inorganic and toxic compounds, which is a sustainable solution to algae production using wastewater resources and then to be used for bio-energy production.
Journal ArticleDOI

Pyrolysis of waste animal fats in a fixed-bed reactor: Production and characterization of bio-oil and bio-char

TL;DR: In this paper, the main products (liquid bio-oil, solid bio-char and syngas) were obtained from pyrolysis of animal fatty wastes, and the maximum production of biooil was achieved at a pyroleysis temperature of 500 °C and a heating rate of 5 °C/min.