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REVISTA DE CHIMIE
https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie, Volume 70, Issue 1, pp. 301-303 (2019)
https://doi.org/10.37358/RC.19.1.6904

Mihai Stefanescu, Laurentiu Razvan Dinu, Costel Bumbac

Ultrasonic Alkaline Pretreatment of Biological Activated Sludge from Wastewater Treatment Plants

Abstract:

Ultrasonic treatment has become a modern method for removal of micropollutants and refractory compounds from water/wastewater and to improve biodegradation efficiency of biological activated sludge from wastewater treatment plants, in order to produce biogas. This paper is referring to the ultrasonic pretreatment of biological activated sludge, before anaerobic fermentation phase, to increase the amount of biogas generation. The pretreatment of biological sludge is based on two steps: alkaline digestion and ultrasonication. Ten minutes of alkaline condition (pH 9.5 - 10.5) followed by 10 minutes ultrasonication (20 kHz frequency) were the general operating condition of sludge pretreatment phase. Parallel tests (with and without ultrasonic pretreatment step) were performed in order to assess the effect of ultrasonic pretreatment on biogas generation. Ultrasonication in alkaline condition of biological sludge heave led to doubling the amount of biogas generated in anaerobic fermentation phase.
Keywords:
ultrasonic; wastewater treatment plant; biological activated sludge; anaerobic; biogas

Issue: 2019 Volume 70, Number 1
Pages: 301-303
https://doi.org/10.37358/RC.19.1.6904
download pdf   Download Pdf Article
Citation Styles
Cite this article as:
STEFANESCU, M., DINU, L.R., BUMBAC, C., Rev.Chim., 70, no. 1, 2019, p. 301

Vancouver
Stefanescu M, Dinu LR, Bumbac C. Ultrasonic Alkaline Pretreatment of Biological Activated Sludge from Wastewater Treatment Plants. REV.CHIM.[internet]. 2019 Jan;70(1):301-303. Available from: https://doi.org/10.37358/RC.19.1.6904


APA 6th edition
Stefanescu, M., Dinu, L.R. & Bumbac, C. (2019). Ultrasonic Alkaline Pretreatment of Biological Activated Sludge from Wastewater Treatment Plants. Revista de Chimie, 70(1), 301-303. https://doi.org/10.37358/RC.19.1.6904


Harvard
Stefanescu, M., Dinu, L.R., Bumbac, C. (2019). 'Ultrasonic Alkaline Pretreatment of Biological Activated Sludge from Wastewater Treatment Plants', Revista de Chimie, 70(1), pp. 301-303. https://doi.org/10.37358/RC.19.1.6904


IEEE
M. Stefanescu, L.R. Dinu, C. Bumbac, "Ultrasonic Alkaline Pretreatment of Biological Activated Sludge from Wastewater Treatment Plants". Revista de Chimie, vol. 70, no. 1, pp. 301-303, 2019. [online]. https://doi.org/10.37358/RC.19.1.6904


Text
Mihai Stefanescu, Laurentiu Razvan Dinu, Costel Bumbac,
Ultrasonic Alkaline Pretreatment of Biological Activated Sludge from Wastewater Treatment Plants,
Revista de Chimie,
Volume 70, Issue 1,
2019,
Pages 301-303,
ISSN 2668-8212,
https://doi.org/10.37358/RC.19.1.6904.
(https://revistadechimie.ro/Articles.asp?ID=6904)
Keywords: ultrasonic; wastewater treatment plant; biological activated sludge; anaerobic; biogas


RIS
TY - JOUR
T1 - Ultrasonic Alkaline Pretreatment of Biological Activated Sludge from Wastewater Treatment Plants
A1 - Stefanescu, Mihai
A2 - Dinu, Laurentiu Razvan
A3 - Bumbac, Costel
JF - Revista de Chimie
JO - Rev.Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2019
VL - 70
IS - 1
SP - 301
EP - 303
UR - https://doi.org/10.37358/RC.19.1.6904
KW - ultrasonic
KW - wastewater treatment plant
KW - biological activated sludge
KW - anaerobic
KW - biogas
ER -


BibTex
@article{RevCh2019P301,
author = {Stefanescu Mihai and Dinu Laurentiu Razvan and Bumbac Costel},
title = {Ultrasonic Alkaline Pretreatment of Biological Activated Sludge from Wastewater Treatment Plants},
journal = {Revista de Chimie},
volume = {70},
number = {1},
pages = {301-303},
year = {2019},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.19.1.6904},
url = {https://revistadechimie.ro/Articles.asp?ID=6904}
}
 
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