Results 11 to 20 of about 13,718,597 (288)
The first flush in sewer systems [PDF]
Water Science and Technology, 1996 The first flush phenomenon of urban wet weather discharges is presently a controversial subject. Scientists do not agree with its reality, nor with its influences on the size of treatment works. Those disagreements mainly result from the unclear definition of the phenomenon.
Saget, A. +2 more
core +4 more sources
First flush analysis of urban stormwater runoff from an urban catchment in Johor, Malaysia
MATEC Web of Conferences, 2018 An increase of pollutants that are present in the initial stage of stormwater runoff hydrograph compared to a later stage of runoff is defined as a first flush phenomenon. This study aims to investigate the occurrence of first flush from samples of urban
Zuraini Noor Atiqah +4 more
doaj +3 more sources
Water Quality and the First-Flush Effect in Roof-Based Rainwater Harvesting, Part II: First Flush
WaterRainwater runoff samples from a range of roofing materials were temporally collected from 19 small-scale roof structures and two commercial buildings through simulated and actual storm events, and the concentrations of polycyclic aromatic hydrocarbons (PAHs), phosphorus flame retardants (PFLs), and pyrethroid insecticides and other water quality ...
Jessica J. Lay +4 more
openaire +2 more sources
Quantifying the first-flush phenomenon: effects of first-flush on water yield and quality [PDF]
, 2009 First-flush diversion is increasingly recognised as a useful intervention to reduce both suspended and dissolved contaminate loads in rainwater systems. Such first flush systems rely on the early rain to wash the roof before water is allowed in the store.
Martinson, Brett, Thomas, T.
openaire +2 more sources
The application of improved flow diverter for first flush management
Water Science and Technology, 2010 The paper presents the investigations on first flush phenomenon based on the total suspended solids (TSS) concentration measurement during selected rainfalls at central part of Czestochowa (Poland) and also the hydrodynamic model of the catchment. The model allows to present the conception of first flush management using an improved flow diverter ...
M. Mrowiec
openaire +3 more sources
First flush in a combined sewer system
Chemosphere, 2008 Pollutant first flush was examined in an urban catchment with area of 12.7 ha and drained by a combined sewer system located in northern Italy. A total of 23 rainfall-runoff events were monitored and 281 samples were analyzed. The selected quality parameters were biochemical oxygen demand, chemical oxygen demand, suspended solids, settleable solids ...
Barco Olga Janet +2 more
openaire +3 more sources
Quantifying the first flush phenomenon [PDF]
, 2005 Removing the first millimetres before rainwater is diverted to a store is a much-used method for ensuring high water quality in rainwater harvesting systems. Such first-flush systems rely on the initial rain to partly wash the roof before runoff water is allowed in the store.
Martinson, Brett, Thomas, T.
openaire +2 more sources
Design Storms for First Flush Modelling at Sewer Inlets
Engineering ProceedingsFirst flush is one of the key phenomena in the dynamics of pollutants in urban drainage. It is affected by a number of factors, like the characteristics of urban surfaces and drainage systems, the rainfall patterns, the street sweeping frequency and ...
Gianfranco Becciu +2 more
doaj +2 more sources
Characteristics of Suspended Solids and Micropollutants in First-Flush Highway Runoff
Water, Air, & Soil Pollution: Focus, 2009 Suspended solids (SS) in the first-flush runoff on highway was monitored in six continuous events from October to December 2000 in Winterthur, Switzerland, and some characteristics of particle-bound micropollutants such as polycyclic aromatic hydrocarbons, phthalate esters, and heavy metals were investigated.
Aryal, R. K., Lee, B.-K.
openaire +4 more sources
Rain Rain Flush Away: Evaluating Rainwater Catchment First Flush Volumes [PDF]
, 2021 Rainwater harvesting systems often include quality control systems such as a diverted first flush volume to improve the collected water quality. The first flush volume has traditionally been defined as a set volume of rain based on the first 1-2 ...
Charlebois, Bridgette
core +2 more sources