TY - JOUR
T1 - Determination of stormwater first flush treatment strategies at tropical urban catchments
AU - Fai, Chow Ming
AU - Yusop, Zulkifli
N1 - Funding Information:
The authors are grateful to the supports from University of Technology Malaysia (UTM) and UTM Research Management Centre (RMC) for facilitating this research under Vot GUP 01H72. We sincerely thank the anonymous reviewers for giving comments and suggestions which improved this manuscript.
Publisher Copyright:
© 2017 Desalination Publications. All rights reserved.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017/6
Y1 - 2017/6
N2 - This study was conducted to determine the first flush magnitude and treatment strategies of stormwater pollutants at tropical urban catchments. Stormwater samples were manually grabbed and the flow rates were measured during 52 storm events at residential, commercial and industrial catchments. The mass based first flush (MBFF) ratio was used to quantify the first flush magnitude of stormwater pollutants. The treatment effectiveness factor [E(v)] was determined in order to identify the treatment strategies for first flush runoff volume at different urban land uses. The results showed that commercial catchment has the strongest MBFF for BOD, COD, TSS, NO3–N and SRP. Residential catchment showed the highest MBFF for NH3–N and Zn while industrial catchment exhibited the highest MBFF for O&G, TP and NO2–N. The study found that treating the first 10% of runoff volumes can remove most of the pollutant loadings for NH3–N, SRP, TP and Zn at residential and commercial catchments. Meanwhile, majority of the stormwater pollutants at industrial catchment could only be treated effectively in the first 30%–50% of runoff volumes.
AB - This study was conducted to determine the first flush magnitude and treatment strategies of stormwater pollutants at tropical urban catchments. Stormwater samples were manually grabbed and the flow rates were measured during 52 storm events at residential, commercial and industrial catchments. The mass based first flush (MBFF) ratio was used to quantify the first flush magnitude of stormwater pollutants. The treatment effectiveness factor [E(v)] was determined in order to identify the treatment strategies for first flush runoff volume at different urban land uses. The results showed that commercial catchment has the strongest MBFF for BOD, COD, TSS, NO3–N and SRP. Residential catchment showed the highest MBFF for NH3–N and Zn while industrial catchment exhibited the highest MBFF for O&G, TP and NO2–N. The study found that treating the first 10% of runoff volumes can remove most of the pollutant loadings for NH3–N, SRP, TP and Zn at residential and commercial catchments. Meanwhile, majority of the stormwater pollutants at industrial catchment could only be treated effectively in the first 30%–50% of runoff volumes.
KW - Event mean concentration
KW - Mass based first flush
KW - Stormwater
KW - Treatment strategy
KW - Tropical urban catchment
UR - https://www.scopus.com/pages/publications/85027114021
U2 - 10.5004/dwt.2017.20809
DO - 10.5004/dwt.2017.20809
M3 - Article
AN - SCOPUS:85027114021
SN - 1944-3994
VL - 79
SP - 196
EP - 203
JO - Desalination and Water Treatment
JF - Desalination and Water Treatment
ER -
