Analysis of the chosen thermal and flammability parameters of dried sewage dust

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27200%2F23%3A10253488" target="_blank" >RIV/61989100:27200/23:10253488 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0950423023001286" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0950423023001286</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jlp.2023.105098" target="_blank" >10.1016/j.jlp.2023.105098</a>

Result language

angličtina

Original language name

Analysis of the chosen thermal and flammability parameters of dried sewage dust

Original language description

The hazardous sludge disposal process in the form of landfills requires the determination inter alia of the flammable and explosion properties of dried sewage sludge dust, which has the ability to ignite and spontaneously combust when stored in silos. At a constant furnace surface temperature, the minimum ignition temperature of the sludge dust layer with a layer thickness of 5 mm is 270 oC, and for a layer thickness of 12.5 mm it is 250 oC. Two selected fire extinguishing powders for Class A, B, C and D fires were used in the study to determine the possibility of reducing the susceptibility of dried wastewater to ignition from heated surface, self-ignition and explosion parameters. The most effective extinguishing powder was ABC Favorit, which increased the value of the minimum ignition temperature of the layer (5 mm thick) to 360 oC and the spontaneous ignition temperature of the sludge with this powder increased by 22 oC at 169.6 cm3 in comparison to the sludge without extinguishing powder, respectively. The lowest self-ignition temperature of 136 oC was recorded for the largest tested volume (169.6 cm3) for dried sewage dust without any fire extinguishing powders. The biggest values of pmax and (dp/dt)max dried sewage dust were recorded 4.8 bar and 113 bar/s respectively. By analysing the obtained test results, it can be assumed that dried sewage dust is a combustible material with properties similar to biomass.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

20704 - Energy and fuels

Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Loss Prevention in the Process Industries

ISSN

0950-4230

e-ISSN

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Volume of the periodical

83

Issue of the periodical within the volume

July 2023

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

1-8

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85160865791