Methods Used in Disinfections of Wastewater and Sewage Sludge – Short Review

Organism	Type/Genus	Number in 1 g wet mass of sediment
Bacteria	E. coli	10⁶
Bacteria	Salmonella	10² – 10³
Viruses	Enteroviruses	10² – 10⁴
Protozoa	Giardia	10² – 10³
Helminths	Ascaris	10² – 10³
	Toxocara	10 – 10²
	Taenia	5

Bacteria removal from wastewater in sedimentation process in the primary settling tank [21, 24]

Type/Genius	Reduction [%]	Source
Coliforms	10	Bitton [2011]
Faecal coliforms	35	Bitton [2011]
Escherichia coli	15	Olańczuk-Neyman and Quant [2015]
Mycobacterium tuberculosis	50	Olańczuk-Neyman and Quant [2015]
Salmonella spp.	15	Olańczuk-Neyman and Quant [2015]
Shigella spp.	15	Olańczuk-Neyman and Quant [2015]
Clostridium perfingens	60	Bitton [2011]

Selected methods used in disinfection of wastewater and sewage sludge

Methods used in disinfection	Disinfection of wastewater	Disinfection of sewage sludge
Chlorination	+	+
Ozonation	+	+
Performic acid (PFA)	+	-
Peracetic acid (PAA)	+	+
Pasteurization	+	+
UV radiation	+	+
Membrane methods	+	-
Ultrasounds	+	+

DOI: https://doi.org/10.21307/acee-2020-017 | Journal eISSN: 2720-6947 (formerly 1899-0142) | Journal ISSN: 1899-0142

Language: English

Page range: 57 - 63

Submitted on: Mar 27, 2020

Accepted on: May 20, 2020

Published on: Jul 21, 2020

Published by: Silesian University of Technology

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

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© 2020 Eliza HAWRYLIK, published by Silesian University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.