Contributions of dry and wet weather runoffs to annual pollutant loading in tropical urban catchments

This study compares the relative contributions of potential contaminants discharged in dry weather flow (DWF) and wet weather flow (WWF) from typical type of catchments in Malaysia. A total of 52 storm events were monitored for WWF quality evaluation. Hourly DWF samples were also collected manually...

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Main Authors: Chow, Ming Fai, Yusop, Zulkifli
Format: Book Section
Published: Springer Nature Singapore Pte Ltd 2018
Subjects:
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author Chow, Ming Fai
Yusop, Zulkifli
author_facet Chow, Ming Fai
Yusop, Zulkifli
author_sort Chow, Ming Fai
collection ePrints
description This study compares the relative contributions of potential contaminants discharged in dry weather flow (DWF) and wet weather flow (WWF) from typical type of catchments in Malaysia. A total of 52 storm events were monitored for WWF quality evaluation. Hourly DWF samples were also collected manually during selected weekday (Wednesday) and weekend (Saturday and Sunday). All water samples were analyzed for TSS, COD, BOD, oil and grease (O&G), NO2–N, NO3–N, NH3–N, soluble P, total P and Zinc. The results indicate that TSS, BOD, COD and O&G were mostly transported in WWF than in DWF. More than 70% of the total annual load of TSS and O&G were transported in storm water runoff. Conversely, annual loadings of NH3–N and soluble P were mainly evacuated by DWF at the commercial and industrial catchments. Storm water runoff contributes greater loadings of N and P in the residential catchment. In general, each pollutant and land use would give different relative contributions to the annual pollutant loadings. In conclusion, this study have recognized the relative pollutant loading contributions by dry and wet weather flows in typical urban catchments in Malaysia. This findings will help the decision makers to develop better target specific pollutant treatment strategies to reduce the urban water pollution.
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spelling utm.eprints-965712022-07-28T06:47:40Z http://eprints.utm.my/96571/ Contributions of dry and wet weather runoffs to annual pollutant loading in tropical urban catchments Chow, Ming Fai Yusop, Zulkifli TA Engineering (General). Civil engineering (General) This study compares the relative contributions of potential contaminants discharged in dry weather flow (DWF) and wet weather flow (WWF) from typical type of catchments in Malaysia. A total of 52 storm events were monitored for WWF quality evaluation. Hourly DWF samples were also collected manually during selected weekday (Wednesday) and weekend (Saturday and Sunday). All water samples were analyzed for TSS, COD, BOD, oil and grease (O&G), NO2–N, NO3–N, NH3–N, soluble P, total P and Zinc. The results indicate that TSS, BOD, COD and O&G were mostly transported in WWF than in DWF. More than 70% of the total annual load of TSS and O&G were transported in storm water runoff. Conversely, annual loadings of NH3–N and soluble P were mainly evacuated by DWF at the commercial and industrial catchments. Storm water runoff contributes greater loadings of N and P in the residential catchment. In general, each pollutant and land use would give different relative contributions to the annual pollutant loadings. In conclusion, this study have recognized the relative pollutant loading contributions by dry and wet weather flows in typical urban catchments in Malaysia. This findings will help the decision makers to develop better target specific pollutant treatment strategies to reduce the urban water pollution. Springer Nature Singapore Pte Ltd 2018-05-13 Book Section PeerReviewed Chow, Ming Fai and Yusop, Zulkifli (2018) Contributions of dry and wet weather runoffs to annual pollutant loading in tropical urban catchments. In: Global Civil Engineering Conference 2017. Lecture Notes in Civil Engineering, 9 (NA). Springer Nature Singapore Pte Ltd, Singapore, pp. 1511-1521. ISBN 978-981-10-8015-9 http://dx.doi.org/10.1007/978-981-10-8016-6_109 DOI:10.1007/978-981-10-8016-6_109
spellingShingle TA Engineering (General). Civil engineering (General)
Chow, Ming Fai
Yusop, Zulkifli
Contributions of dry and wet weather runoffs to annual pollutant loading in tropical urban catchments
title Contributions of dry and wet weather runoffs to annual pollutant loading in tropical urban catchments
title_full Contributions of dry and wet weather runoffs to annual pollutant loading in tropical urban catchments
title_fullStr Contributions of dry and wet weather runoffs to annual pollutant loading in tropical urban catchments
title_full_unstemmed Contributions of dry and wet weather runoffs to annual pollutant loading in tropical urban catchments
title_short Contributions of dry and wet weather runoffs to annual pollutant loading in tropical urban catchments
title_sort contributions of dry and wet weather runoffs to annual pollutant loading in tropical urban catchments
topic TA Engineering (General). Civil engineering (General)
work_keys_str_mv AT chowmingfai contributionsofdryandwetweatherrunoffstoannualpollutantloadingintropicalurbancatchments
AT yusopzulkifli contributionsofdryandwetweatherrunoffstoannualpollutantloadingintropicalurbancatchments