נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Bacterial Composition of Constructed Wetland's Biofilm: The Influence of Biotic and A-biotic Parameters on the Composition of the Biofilm
Year:
2012
Source of publication :
Authors :
Iasur-Kruh, Lilach
;
.
Volume :
Co-Authors:
Facilitators :
Minz, Dror
;
.
From page:
1
To page:
102
(
Total pages:
102
)
Abstract:

Supervised by: Minz Dror, Hadar Yitzhak

Abstract:

In recent years water availability has become an issue of global concern. Overpopulation and industrial development are causing a substantial shortfall in availability of potable water. This shortage becomes of greater importance in countries like Israel that have limited resources of drinking water. Developing efficient wastewater treatment (WWT) systems which produce high-quality effluent water for reuse in agriculture is significant for both reducing the usage of potable water reservoirs, and for controlling environmental pollution. Constructed wetlands (CW) are becoming increasingly popular as economical and environmentally friendly solutions for WWT. Similar to conventional WWT systems, microbial biofilms, attached to the CW matrix, are responsible for most of the essential transformations and decomposition of contaminants in the wastewater. Still, relatively little is known about the bacterial populations involved in the formation and activity of this biofilms. The focus of this thesis was microbial aspects of biofilm formed during advanced treatment of purified wastewater in CW. The wetland is a very dynamic and variable system with respect to its physical and chemical properties. This variability is a result of different gradients of redox potential, substrate availability, and environmental conditions, such as pH and temperature. The different gradients create variable niches throughout the CW ponds, in which different biochemical processes take place. These diverse conditions at the niche level may affect the composition and activity of the microbial community in wetlands biofilm. The first aim of this work was to investigate the microbial population composition and activity of CW biofilm with respect to the influence of vegetation, depth, and CW matrix type. Dominant bacterial assemblage in biofilm developed on gravel of different layers of wetland microcosms constructed with or without vegetation was examined. Highly complex bacterial diversity was observed in the biofilm, including representatives of the In recent years water availability has become an issue of global concern. Overpopulation and industrial development are causing a substantial shortfall in availability of potable water. This shortage becomes of greater importance in countries like Israel that have limited resources of drinking water. Developing efficient wastewater treatment (WWT) systems which produce high-quality effluent water for reuse in agriculture is significant for both reducing the usage of potable water reservoirs, and for controlling environmental pollution. Constructed wetlands (CW) are becoming increasingly popular as economical and environmentally friendly solutions for WWT. Similar to conventional WWT systems, microbial biofilms, attached to the CW matrix, are responsible for most of the essential transformations and decomposition of contaminants in the wastewater. Still, relatively little is known about the bacterial populations involved in the formation and activity of this biofilms. The focus of this thesis was microbial aspects of biofilm formed during advanced treatment of purified wastewater in CW. The wetland is a very dynamic and variable system with respect to its physical and chemical properties. This variability is a result of different gradients of redox potential, substrate availability, and environmental conditions, such as pH and temperature. The different gradients create variable niches throughout the CW ponds, in which different biochemical processes take place. These diverse conditions at the niche level may affect the composition and activity of the microbial community in wetlands biofilm. The first aim of this work was to investigate the microbial population composition and activity of CW biofilm with respect to the influence of vegetation, depth, and CW matrix type... 

Note:
Access to full text is only for authorized persons
bacteria
biofilm
wastewater treatment
Show More
Related Content
More details
DOI :
Article number:
0
Affiliations:
Database:
Google Scholar
Publication Type:
Dissertation
;
.
Language:
English
Editors' remarks:
ID:
41404
Last updated date:
02/03/2022 17:27
Creation date:
18/06/2019 08:45
You may also be interested in
Scientific Publication
Bacterial Composition of Constructed Wetland's Biofilm: The Influence of Biotic and A-biotic Parameters on the Composition of the Biofilm

Supervised by: Minz Dror, Hadar Yitzhak

Abstract:

In recent years water availability has become an issue of global concern. Overpopulation and industrial development are causing a substantial shortfall in availability of potable water. This shortage becomes of greater importance in countries like Israel that have limited resources of drinking water. Developing efficient wastewater treatment (WWT) systems which produce high-quality effluent water for reuse in agriculture is significant for both reducing the usage of potable water reservoirs, and for controlling environmental pollution. Constructed wetlands (CW) are becoming increasingly popular as economical and environmentally friendly solutions for WWT. Similar to conventional WWT systems, microbial biofilms, attached to the CW matrix, are responsible for most of the essential transformations and decomposition of contaminants in the wastewater. Still, relatively little is known about the bacterial populations involved in the formation and activity of this biofilms. The focus of this thesis was microbial aspects of biofilm formed during advanced treatment of purified wastewater in CW. The wetland is a very dynamic and variable system with respect to its physical and chemical properties. This variability is a result of different gradients of redox potential, substrate availability, and environmental conditions, such as pH and temperature. The different gradients create variable niches throughout the CW ponds, in which different biochemical processes take place. These diverse conditions at the niche level may affect the composition and activity of the microbial community in wetlands biofilm. The first aim of this work was to investigate the microbial population composition and activity of CW biofilm with respect to the influence of vegetation, depth, and CW matrix type. Dominant bacterial assemblage in biofilm developed on gravel of different layers of wetland microcosms constructed with or without vegetation was examined. Highly complex bacterial diversity was observed in the biofilm, including representatives of the In recent years water availability has become an issue of global concern. Overpopulation and industrial development are causing a substantial shortfall in availability of potable water. This shortage becomes of greater importance in countries like Israel that have limited resources of drinking water. Developing efficient wastewater treatment (WWT) systems which produce high-quality effluent water for reuse in agriculture is significant for both reducing the usage of potable water reservoirs, and for controlling environmental pollution. Constructed wetlands (CW) are becoming increasingly popular as economical and environmentally friendly solutions for WWT. Similar to conventional WWT systems, microbial biofilms, attached to the CW matrix, are responsible for most of the essential transformations and decomposition of contaminants in the wastewater. Still, relatively little is known about the bacterial populations involved in the formation and activity of this biofilms. The focus of this thesis was microbial aspects of biofilm formed during advanced treatment of purified wastewater in CW. The wetland is a very dynamic and variable system with respect to its physical and chemical properties. This variability is a result of different gradients of redox potential, substrate availability, and environmental conditions, such as pH and temperature. The different gradients create variable niches throughout the CW ponds, in which different biochemical processes take place. These diverse conditions at the niche level may affect the composition and activity of the microbial community in wetlands biofilm. The first aim of this work was to investigate the microbial population composition and activity of CW biofilm with respect to the influence of vegetation, depth, and CW matrix type... 

Scientific Publication
You may also be interested in