Properties of ash generated during sewage sludge combustion: A multifaceted analysis

Magdziarz, Aneta; Wilk, Małgorzata; Gajek, Marcin; Nowak-Woźny, Dorota; Kopia, Agnieszka; Kalemba–Rec, Izabela; Koziński, Janusz A.

doi:10.1016/j.energy.2016.07.029

Cited by 81 publications

(30 citation statements)

References 29 publications

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“…for biodiesel production, thus, yielding several waste by-products, such as sunflower shells, which can be used for energy production [4,5]. Moreover, the heating efficiency of sewage sludge and its usefulness in a co-combustion process with other organic-rich material is confirmed by several scholars worldwide [6][7][8]. However, in Greece, it is typically utilized as an agricultural amendment.…”

Section: Introductionmentioning

confidence: 99%

Combustion behaviour of different types of solid wastes and their blends with lignite

2018

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The combustion characteristics of blends of lignite with various organic waste materials are evaluated in this study in order to assess their potential for energy recovery. Different types of municipal solid waste (i. e. paper, plastic, textile, organic), as well as sewage sludge and agri-residues (sunflower shells) samples were collected from the Western Macedonia region, northern Greece. Mixtures of each one of them with lignite in different proportions (30-50-70 wt.%) were prepared. Proximate analysis, calorific value determination, and thermogravimetry (TGA/ DTG) were performed. Thermal parameters such as ignition temperature, total weight loss, maximum rate of weight loss, peak and burnout temperatures and burnout time were determined from the TG/DTG profiles of the raw materials and their blends. The combined utilization of proximate analysis, calorific value determination and TG/DTG method proved to be an effective method for a preliminary assessment of the energetic potential of raw solid waste "combustible" materials and their blends with lignite. The analytical results revealed that most of the blends are promising for energy recovery. Regarding the raw wastes, sunflower shells were the most reactive. A non-synergistic effect was found for the blends. Organic and sewage sludge blends revealed the lowest combustibility, which is attributed to the high content of inorganic matter and the heterogeneity of these two types of wastes.

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Section: Introductionmentioning

confidence: 99%

Combustion behaviour of different types of solid wastes and their blends with lignite

2018

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“…Generally, the dry matter content of chlorine in biomass is under 2%, although higher values tend to be reported for olive pomace, corn grain and straw. High chloride content in pellets may significantly contribute to a decrease of the melting point value, while at the same time exacerbating ash deposition on the heating elements of the furnace [62].…”

Section: Resultsmentioning

confidence: 99%

Impact of the Type of Fertilization and the Addition of Glycerol on the Quality of Spring Rape Straw Pellets

Kachel‐Jakubowska¹,

Kraszkiewicz²,

Subr³

et al. 2020

Energies

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This paper presents an analysis of selected qualitative characteristics of pellets produced from rape straw obtained from cultivations subjected to different fertilization treatments and from mixtures of straw selected for testing with crude glycerol obtained as a by-product from biodiesel production. The assessment focused on the following qualities of the obtained pellets: Moisture content, mechanical durability, heating value and main elements, that is, carbon, hydrogen, nitrogen, sulphur, chlorine and oxygen. The obtained results indicated that the different treatment regimens applied in spring rape cultivations had a significant impact on the physicochemical qualities of the straw. In terms of the heating value, traditional fertilization with multi-component fertilizer (NPK) yielded slightly lower chemical parameters (lower carbon content and heat of combustion) than in the case of straw obtained from the control sample and from the plot fertilized with digestate. Furthermore, in all of the analysed mixtures, the 10% addition of raw glycerol improved the mechanical characteristics of the produced straw pellets. After the 10% glycerol addition, in terms of the energetic use of these biofuels, the parameters of the fuel, such as heating value and net heating value, were slightly decreased.

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“…Recently, fossil fuels have been widely used for energy production [1][2][3]. However, there is a need to replace these energy sources to more environmental friendly energy generators such as biomass.…”

Section: Introductionmentioning

confidence: 99%

“…For energy generation, biomass is commonly delivered from plants (from energy crops), agricultural products, organic waste, wood, and wood processing waste [13,14]. The ash formed after the combustion of biomass contains calcium, magnesium, silicon, and alkali metals [1,2].…”

Section: Introductionmentioning

confidence: 99%

Surface Characterization of 309 and 310 Steel after the Corrosion in Wood Biomass Ash

et al. 2017

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The aim of this study was to investigate the influence of biomass ashes -specifically wood biomass ashon the surface of austenitic stainless steel 309 and 310. The process was carried out for 1000 h at 650• C. The microstructure and chemical composition of corrosion products were examined by scanning electron microscopy with energy dispersive spectroscopy analysis. Phase analysis of corrosion product were done by X-ray diffraction and ash composition was investigated by X-ray fluorescence. It was observed that wood biomass ash caused the corrosion of the steel surface. On the surface of the steels exposed to wood biomass ash the layer of corrosion products was observed, mostly chromium, nickel and iron oxide. The thickness of mill scale formed during the process was in the range of h = 15−30µm.

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Properties of ash generated during sewage sludge combustion: A multifaceted analysis

Cited by 81 publications

References 29 publications

Combustion behaviour of different types of solid wastes and their blends with lignite

Combustion behaviour of different types of solid wastes and their blends with lignite

Impact of the Type of Fertilization and the Addition of Glycerol on the Quality of Spring Rape Straw Pellets

Surface Characterization of 309 and 310 Steel after the Corrosion in Wood Biomass Ash

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