Presence of Siloxanes in the Biogas of a Wastewater Treatment Plant Separation in Condensates and Influence of the Dose of Iron Chloride on its Elimination

García, Mariano; Prats, Daniel; Trapote, Arturo

doi:10.4172/2252-5211.1000192

Cited by 7 publications

(15 citation statements)

References 9 publications

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“…S. Konarskiego 18, 44-100, Gliwice, Poland, phone + 48 32 237 27 77, email: jolanta.bohdziewicz@polsl.pl 3 Faculty of Chemistry, Silesian University of Technology, Gliwice, ul. M. Strzody 7, 44-100, Gliwice, Poland, phone + 48 32 237 19 00, email: krzysztof.piotrowski@polsl.pl 4 Faculty of Mechanical Engineering, Silesian University of Technology, Gliwice, ul. S. Konarskiego 18A, 44-100, Gliwice, Poland, phone +48 32 237 20 47, email: piotr.sakiewicz@polsl.pl 5 Faculty of Natural and Technical Sciences, University of Opole, Opole, ul.…”

Section: Introductionmentioning

confidence: 99%

“…If the organic silicon components reach the combustion chamber, they burn, producing the typical components of combustion (carbon dioxide and water). The silicon also forms silica (SiO 2 ) or silicates, which are partly removed with exhaust gases, but which are also deposited on all components of the engine [4][5][6]. Deposits are visible in the form of sediment with smooth or rough structure in various shades of grey, they also can create layers a few millimetres thick which are difficult to remove.…”

Section: Introductionmentioning

confidence: 99%

“…(3) During the silica condensation, nanoparticles and nanoclusters are progressively formed and continue to grow establishing larger aggregates. When the deposit is considerable in size, abrasion problems, ignition failure and even engine failure result [4,5]. Table 1 presents selected properties of commonly occurring organosilicon compounds in biogas.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mineral Deposit Formation in Gas Engines During Combustion of Biogas from Landfills and Municipal WWTP

Konkol

Cebula

Bohdziewicz

et al. 2020

Ecological Chemistry and Engineering S

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The biogas produced in municipal wastewater-treatment plants (WWTP) should be cleaned before it can be used as a fuel in internal combustion engines. Efficient running of such engines is possible only subject to using high quality biogas and lubricating oil. Otherwise, biogas impurities in course of complex chemical reactions may form deposits on various engine parts as well as seriously contaminate the lubricating oil. In this paper, mineral deposits containing high concentration of bismuth, silicon, sulphur, calcium and zinc are studied. Silicon deposits demonstrating strong friction properties are formed during combustion of volatile silica compounds. As these deposits build up, abrasion problems, ignition failure and even engine failure result. The bismuth containing deposits comes from bearings degradation, zinc and calcium were derived from the additives present in commercially available lubricating oil, while lead, aluminium, copper, nickel, iron and chromium were introduced by engine wear phenomena. The highest bismuth content was located at the engine cylinder heads and the lowest at the exhaust elements, whereas highest calcium content was registered on the pistons. Silicon containing deposits are highest in the exhaust and lowest at the engine head. Zinc deposits are highest at the piston.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mineral Deposit Formation in Gas Engines During Combustion of Biogas from Landfills and Municipal WWTP

Konkol

Cebula

Bohdziewicz

et al. 2020

Ecological Chemistry and Engineering S

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“…Due to the daily use of products containing siloxanes and their chemical derivatives, these pollutants are frequently found in WWTPs, predominantly D4 and D5, while the remaining siloxanes appear in lower amounts [ 24 , 25 ]. In WWTPs, their accumulation in sludge is favoured, which leads to the production of biogas enriched with these compounds [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

“…When combusted to generate energy, siloxanes are oxidised into microcrystalline silicon dioxide that deposits on cogenerator parts [ 27 ]. These oxides are highly abrasive, wearing down the equipment, changing the combustion chamber in geometry and clogging lines, which could cause accidental explosions, decrease the system’s useful lifetime, and increase operational and maintenance costs [ 24 , 25 ]. Current technologies to remove siloxanes from biogas have numerous limitations, such as their high implementation and operational costs.…”

Section: Introductionmentioning

confidence: 99%

Microalgal Cultures for the Bioremediation of Urban Wastewaters in the Presence of Siloxanes

Salgado

Gonçalves

Sánchez-Soberón

et al. 2022

IJERPH

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Microalgae are widely used in the bioremediation of wastewaters due to their efficient removal of pollutants such as nitrogen, phosphorus, and contaminants of emerging concern (CECs). Siloxanes are CECs that reach wastewater treatment plants (WWTPs), leading to the production of biogas enriched with these compounds, associated with the breakdown of cogeneration equipment. The biological removal of siloxanes from wastewaters could be a sustainable alternative to the costly existing technologies, but no investigation has been performed using microalgal cultures for this purpose. This study evaluated the ability of Chlorella vulgaris to bioremediate primary (PE) and secondary (SE) urban effluents and remove volatile methylsiloxanes (VMSs). C. vulgaris grew successfully in both effluents, and approximately 86% of nitrogen and 80% of phosphorus were efficiently removed from the PE, while 52% of nitrogen and 87% of phosphorus were removed from the SE, and the presence of VMSs does not seem to have a negative influence on nutrient removal. Three out of the seven of the analysed VMSs were detected in the microalgal biomass at the end of the PE assay. However, dodecamethylcyclohexasiloxane (D6) was the one that accumulated to a greater extent, since 48% of the initial mass of D6 was detected in the biomass samples. D6 is one of the most lipophilic VMSs, which might contribute to the higher adsorption onto the surface of microalgae. Overall, the results indicate C. vulgaris’ potential to remove specific VMSs from effluents.

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Solid oxide fuel cells (SOFCs) fed with biogas containing hydrogen chloride traces: Impact on direct internal reforming and electrochemical performance

Illathukandy

Saadabadi

Kuo

et al. 2022

Electrochimica Acta

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Presence of Siloxanes in the Biogas of a Wastewater Treatment Plant Separation in Condensates and Influence of the Dose of Iron Chloride on its Elimination

Cited by 7 publications

References 9 publications

Mineral Deposit Formation in Gas Engines During Combustion of Biogas from Landfills and Municipal WWTP

Mineral Deposit Formation in Gas Engines During Combustion of Biogas from Landfills and Municipal WWTP

Microalgal Cultures for the Bioremediation of Urban Wastewaters in the Presence of Siloxanes

Solid oxide fuel cells (SOFCs) fed with biogas containing hydrogen chloride traces: Impact on direct internal reforming and electrochemical performance

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