Influence of Biofilm Treatment Systems on Particle Size Distribution in Three Wastewater Treatment Plants

This article presents the results of a research study that analyzed the effect that secondary biofilm treatment systems had on particle size distribution (PSD) in the effluent of wastewater treatment plants. This study focused on three biofilm technologies (i.e. a submerged biofilter system, a trick...

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Bibliographic Details
Published in:Water, air, and soil pollution air, and soil pollution, 2010-10, Vol.212 (1-4), p.37-49
Main Authors: García-Mesa, Juan José, Poyatos, José M, Delgado, Fernando, Hontoria, Ernesto
Format: Article
Language:English
Subjects:
Analysis
Applied sciences
Atmospheric Protection/Air Quality Control/Air Pollution
Biofilms
Biofilters
Chemical oxygen demand
Climate Change/Climate Change Impacts
Earth and Environmental Science
Efficiency
Effluents
Environment
Environmental monitoring
Exact sciences and technology
Hydrogeology
Laws, regulations and rules
Mathematical models
Particle size
Particle size distribution
Plants (organisms)
Pollution
Power plants
Purification
Resource recovery
Rotating
Sedimentation & deposition
Sewage
Size distribution
Soil Science & Conservation
Studies
Suspended solids
Trickling filters
Waste water
Wastewater treatment
Wastewater treatment plants
Water Quality/Water Pollution
Water treatment
Water treatment plants
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Summary:This article presents the results of a research study that analyzed the effect that secondary biofilm treatment systems had on particle size distribution (PSD) in the effluent of wastewater treatment plants. This study focused on three biofilm technologies (i.e. a submerged biofilter system, a trickling filter system, and a rotating biological contactor system) in three working urban wastewater treatment plants. For this purpose, the variation of the fit parameters was analyzed after modeling the PSD with the power law. The greatest reduction in particle number was obtained with the submerged biofilter system, followed by the trickling filter system. In contrast, the rotating biological contactor showed the smallest reduction in particle number under the conditions of our study. It was also found that the variation of the fit parameters of the PSD, caused by the wastewater treatments was related to other wastewater parameters, such as the chemical oxygen demand, suspended solids, and the mean particle size. This showed a direct relation between these parameters and the particles in wastewater.
ISSN:0049-6979
1573-2932
DOI:10.1007/s11270-009-0320-5