Sulphide Biooxidation in Activated Sludge Diffusion Process: Microbiological and Biochemical Effects

Sulphide was adopted as odorous compound in a simulation of AS Diffusion, an interesting process to treat odors at wastewater treatment plants by diffusing odorous air into aerobic basins. Its behaviour were experimentally evaluated along with its effects on the biomass and the biological processes...

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Bibliographic Details
Published in:Proceedings
Main Authors: Massimo Blonda, Angelantonio Calabrese, Raffaele Palumbo, Elvira Giorgio
Format: Article
Language:English
Published: MDPI AG 2018-07-01
Subjects:
AS Diffusion
gaseous sulphur
odor treatment
Online Access:http://www.mdpi.com/2504-3900/2/11/646
Description
Summary:Sulphide was adopted as odorous compound in a simulation of AS Diffusion, an interesting process to treat odors at wastewater treatment plants by diffusing odorous air into aerobic basins. Its behaviour were experimentally evaluated along with its effects on the biomass and the biological processes supposed by some author in an AS diffusion test. Two bench scale sequencing batch reactors (SBRs) were fed in parallel on real primary sewage and monitored after adding increasing concentrations of sulphide to one of them. In this reactor, an average sulphide removal of 94% was measured. Microbial biochemical activity and composition did not show relevant variations after the addition of sulphide, and the good features of activated sludge flocs were maintained also in terms of sludge settleability.
ISSN:2504-3900

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