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The paper concerns the applicability of silver nanoparticles for reducing the emission of odours. Silver nanoparticles were successfully adsorbed on three different dolomitic limestone samples. In the next stage, wastewater from the meat industry was mixed with sorbents modified with a variable content of silver nanoparticles. After 4 days and 7 days, the concentration of ammonia was examined spectrophotometrically. Also, the degree of reduction of total odour concentration by olfactometric method was carried out. Depending on the concentration of the silver nanoparticles on the sorbents, the concentration of ammonia was 15-42 μg/cm3 for nAg content equal to 0.08%, while for sorbents containing approximately 36% of nAg the concentration of ammonia was 0.09-16 μg/cm3. A leaching test of nanosilver from sorbents confirmed that the particles were bound with the sorbents by strong bonds. The percentage of eluted silver increased from 0.67% to 11%, with increased initial concentrations of nAg on the sorbents from 0.18% to 0.37%.
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The paper concerns the applicability of silver nanoparticles for reducing the emission of odours. Silver nanoparticles were successfully adsorbed on three different dolomitic limestone samples. In the next stage, wastewater from the meat industry was mixed with sorbents modified with a variable content of silver nanoparticles. After 4 days and 7 days, the concentration of ammonia was examined spectrophotometrically. Also, the degree of reduction of total odour concentration by olfactometric method was carried out. Depending on the concentration of the silver nanoparticles on the sorbents, the concentration of ammonia was 15-42 μg/cm3 for nAg content equal to 0.08%, while for sorbents containing approximately 36% of nAg the concentration of ammonia was 0.09-16 μg/cm3. A leaching test of nanosilver from sorbents confirmed that the particles were bound with the sorbents by strong bonds. The percentage of eluted silver increased from 0.67% to 11%, with increased initial concentrations of nAg on the sorbents from 0.18% to 0.37%.

Synthesis and application of natural sorbents with silver nanoparticles in reducing the emission of odours

Faculty of Chemical Engineering and Technology

Mineralogia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The paper concerns the applicability of silver nanoparticles for reducing the emission of odours. Silver nanoparticles were successfully adsorbed on three...

Synthesis and application of natural sorbents with silver nanoparticles in reducing the emission of odours

Online veröffentlicht: 16. Dez. 2020

Seitenbereich: 47 - 59

Eingereicht: 01. Okt. 2019

Akzeptiert: 06. Juli 2020

DOI: https://doi.org/10.2478/mipo-2020-0005

Schlüsselwörter
nanosilver, dolomitic limestone, odours, ammonia, deodorisation

© 2020 Długosz Olga et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Synthesis and application of natural sorbents with silver nanoparticles in reducing the emission of odours

Online veröffentlicht: 16. Dez. 2020

Seitenbereich: 47 - 59

Eingereicht: 01. Okt. 2019

Akzeptiert: 06. Juli 2020

DOI: https://doi.org/10.2478/mipo-2020-0005

Schlüsselwörternanosilver, dolomitic limestone, odours, ammonia, deodorisation

© 2020 Długosz Olga et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Schlüsselwörter
nanosilver, dolomitic limestone, odours, ammonia, deodorisation