Results 11 to 20 of about 60,314 (290)
The first flush in sewer systems
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
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
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
Influence of Rainfall Characteristics on First Flush Behaviour [PDF]
IOP Conference Series: Materials Science and Engineering, 2020 Abstract Urban stormwater with impervious surface often produces runoff with a variety of contaminants. This paper discusses an investigation into the influence of rainfall characteristics toward the first flush behaviour. This study involved field investigations, sampling of urban stormwater runoff, laboratory testing and data analysis.
Noor Atiqah Zuraini, Noraliani Alias
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Evaluation of the methods for first flush analysis in urban watersheds
Water Science and Technology, 2003 The general tendency between the ratio of cumulative pollutant loads and the ratio of cumulative runoff appears as a nonlinear form which can be expressed in the form of a third polynomial. In this paper third degree polynomials were applied to represent the first flush curves based on the relationship between the cumulative pollutant load ratio and ...
J H, Lee, M J, Yu, K W, Bang, J S, Choe
openaire +3 more sources
Characteristics of particle-associated PAHs in a first flush of a highway runoff
Water Science and Technology, 2006 Runoff monitoring of six rainfall events was carried out in a highway, Winterthur, Switzerland focusing on first flush (runoff volume up to 2.88 mm). Six runoff events were used to investigate the characteristics of particle-associated PAHs in first flush.
Aryal, R. K. +3 more
openaire +7 more sources
Children, 2021 The 7th edition of the Textbook of Neonatal Resuscitation recommends administration of epinephrine via an umbilical venous catheter (UVC) inserted 2–4 cm below the skin, followed by a 0.5-mL to 1-mL flush for severe bradycardia despite effective ...
Deepika Sankaran +19 more
doaj +1 more source
Jurnal Agrotropika, 2020 The research was conducted to study shoot-growth pattern on four cultivars of mango ( Arumanis, Gedong, Indramayu, Manalagi) that was early pruning and application of KNO3.The treatment was arranged factorially (2x5) in a randomized block design with ...
Rugayah Rugayah
doaj +1 more source