Evolution on pollutant removal efficiency in storm water ponds due to changes in pond morphology

2007 ◽  
pp. 429-439 ◽  
Author(s):  
Thomas Pettersson ◽  
D Lavieille
Keyword(s):  
Removal Efficiency ◽  
Pollutant Removal ◽  
Storm Water ◽  
Pollutant Removal Efficiency

Development and verification of a general approach to describe the efficiency of vortex separators in combined sewer systems

2007 ◽  
Vol 55 (4) ◽  
pp. 165-173
Author(s):  
T. Mietzel ◽  
K. Klepiszewski ◽  
G. Weiss
Keyword(s):  
Removal Efficiency ◽  
Large Scale ◽  
Cost Effective ◽  
Large Error ◽  
Simulation Software ◽  
Pollutant Removal ◽  
Attractive Alternative ◽  
Dynamic Approach ◽  
General Applicability ◽  
Pollutant Removal Efficiency

The water framework directive (CEC, 2000) asks for cost-effective measures for achieving good ecological conditions in receiving waters. Because of low operation costs and good pollutant removal efficiency, vortex separators (VS) are an attractive alternative to traditional stormwater tanks. The German design standard for CSO structures, ATV-A 128 (1992), demands long-term pollution load simulations. Today's simulation software, however, considers the removal processes in CSO structures either very rudimentarily or not at all. The higher pollutant removal efficiency of a structure like a VS cannot be taken into account. This might be one reason why VS are used still comparatively scarcely. A mathematical model describing the removal efficiency could increase the acceptance of VS. Several functions describing the removal efficiency have been derived from model tests or large-scale studies within the last few years. Within this paper, the data from three large-scale studies are used to verify the general applicability of one steady-state and one dynamic approach. The results show that the complex processes involved with CSO facilities and the large error related to monitoring make the validation of models a difficult task. Anyhow, especially the dynamic approach was applicable at all considered facilities.

URBAN STORMWATER POLLUTANT REMOVAL EFFICIENCY OF CATCH BASIN INSERTS

2003 ◽  
Vol 2003 (4) ◽  
pp. 1279-1294 ◽  
Author(s):  
Robert A. Morgan ◽  
F.G. Edwards ◽  
K.R. Brye
Keyword(s):  
Removal Efficiency ◽  
Pollutant Removal ◽  
Urban Stormwater ◽  
Catch Basin ◽  
Pollutant Removal Efficiency

scholarly journals Improving the pollutant removal efficiency of packed-bed plasma reactors incorporating ferroelectric components

2017 ◽  
Vol 314 ◽  
pp. 311-319 ◽  
Author(s):  
Ana Gómez-Ramírez ◽  
Antonio M. Montoro-Damas ◽  
Miguel A. Rodríguez ◽  
Agustín R. González-Elipe ◽  
José Cotrino
Keyword(s):  
Removal Efficiency ◽  
Packed Bed ◽  
Pollutant Removal ◽  
Plasma Reactors ◽  
Pollutant Removal Efficiency

Influence of Pollutant Removal Efficiency on Natural Ventilation in GPPLF System

2013 ◽  
Vol 448-453 ◽  
pp. 468-471
Author(s):  
Xiao Bo Zhou ◽  
Cheng Duan Wang ◽  
Zhi Shuai Wang ◽  
Li Li Zhang ◽  
Xia Li
Keyword(s):  
Removal Efficiency ◽  
Treatment Effect ◽  
Natural Ventilation ◽  
Domestic Sewage ◽  
T Test ◽  
Pollutant Removal ◽  
Removal Rates ◽  
Hydraulic Loading ◽  
Perforated Pipe ◽  
Pollutant Removal Efficiency

Two Gravel-less Perforated Pipe Leach Fields systems with naturally ventilated or not were tested to treat domestic sewage under the hydraulic loading of 3.3 cm/d, and the differences of the two systems decontamination effect were also investigated by using T test. The results showed that the average removal rates of CODCr, TP, TN and turbidity were 86.1%, 58.0%, 61.1% and 93.6% in the naturally ventilated system, which was 2.0%, 5.4%, 10.2% and 3.2% higher than the normal GPPLF system under the same operating condition. T test indicated that the system of natural ventilation had little effect on removal of CODCr and TP, but could significantly improve the treatment effect of TN and turbidity.

scholarly journals Correction to: Analysis of swale factors implicated in pollutant removal efficiency using a swale database

2018 ◽  
Vol 26 (2) ◽  
pp. 1303-1303
Author(s):  
Alexandre Fardel ◽  
Pierre-Emmanuel Peyneau ◽  
Béatrice Béchet ◽  
Abdelkader Lakel ◽  
Fabrice Rodriguez
Keyword(s):  
Removal Efficiency ◽  
Pollutant Removal ◽  
Pollutant Removal Efficiency

CFD modelling of flow field and particle tracking in a hydrodynamic stormwater separator

2010 ◽  
Vol 62 (10) ◽  
pp. 2381-2388 ◽  
Author(s):  
J. H. Lee ◽  
K. W. Bang ◽  
C. S. Choi ◽  
H. S. Lim
Keyword(s):  
Flow Field ◽  
Removal Efficiency ◽  
Particle Tracking ◽  
Best Management Practices ◽  
Management Practices ◽  
Separation Efficiency ◽  
Pollutant Removal ◽  
Solid Particles ◽  
Storm Water ◽  
Velocity Flow

The best management practices (BMPs) for control of urban stormwater pollution are evaluated to remove solid particles containing various pollutants. Currently, most storm runoff treatment devices using primary pollutant removal mechanism are applied to storm water since most pollutants in runoff are associated with the solid particulates. A hydrodynamic separator is a storm water treatment device using centrifugal motion which separates solids pollution from runoff. In this study, the velocity flow field and particle tracking of hydrodynamic separator were investigated using anthracite as a computational fluid dynamics (CFD) model particle. The Fluent 6.3.26 CFD program was used to predict the solid particles removal efficiency for various parameters such as particle size, surface loading rate, and the ratio of underflow to overflow. The velocity flow field in a hydrodynamic stormwater separator (HDS) has been simulated using CFD RNG κ-ɛ model. Modeling results for the removal efficiency of HDS were similar with the results obtained from experimental measurements of laboratory scale HDS. These results showed that the simulated velocity field was useful to interpret the behavior of flow in the hydrodynamic separator. The results obtained from particle tracking can be applied to predict the separation efficiency.

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