Differences in populations of filamentous bacteria involved in foaming and bulking of activated sludge
Journal Title: Challenges of Modern Technology - Year 2015, Vol 6, Issue 3
Abstract
Bulking and foaming of activated sludge are related to excessive proliferation of a specific group of activated sludge biocenosis – filamentous bacteria. The research was carried out to compare filamentous bacteria populations in foam and activated sludge in a full-scale municipal wastewater treatment plant located near Warsaw (Poland). Fluorescent in situ hybridization (FISH) – a quantitative, culture-independent, molecular method was applied to evaluate the structure of filamentous populations. Activated sludge and foam were examined for the abundance of eleven groups of these microorganisms, which occur in wastewater treatment plants in Europe. Filamentous bacteria constituted 18% and 24% of all bacteria detected in sludge and foam, respectively. The structures of filamentous bacteria populations in sludge and foam were different, although the same bacteria were found in both types of samples. The most abundant filaments belonged to phylum Chloroflexi (targeted by the CFXmix probe) and genus Microthrix (targeted by the MPAmix probe) in sludge and foam, respectively. The third significantly abundant bacteria was Haliscomenobacter hydrossis (targeted by HHY654).
Authors and Affiliations
Aleksandra Miłobędzka, Adam Muszyński
Keywords
Related Articles
- EP ID EP205158
- DOI -
- Views 71
- Downloads 0
Citizens’ Participation in the Noise Action Planning
The complexity of noise mapping and action planning, the free interpretation of Article 8.7. (Action plans – Public Participation) and Article 9.2. (Information to the Public – Information about Noise Action Plans) of th...
Application of the Clark-Wilson Model for Business Intelligence System Security Improvement
This paper presents the theoretical issues of data security in information systems, a practical implementation of the Clark-Wilson model on the example of Business Intelligence tool, performing the function of a telecomm...
Feature vector or time-series – comparison of gestures representations in automatic gesture recognition systems
In this paper, we performed recognition of isolated sign language gestures - obtained from Australian Sign Language Database (AUSLAN) – using statistics to reduce dimensionality and neural networks to recognize patterns....
New Trends in the Development of High-Range Water-Reducing Admixtures
Chemical admixtures, in addition to cement, sand, gravel and water, are a primary component of concrete. High-range water reducers, also known as superplasticizers, are one of the most important chemical admixtures. The...
The Conservation Theory for the Industrial Heritage – a time for solemn reflections, both retrospective and prospective
The theory of conservation evolves. Industrial buildings in Poland have not been protected for many years. Now this state is changing. The aim of this article is to describe a current approach to the protection of indust...