Design a Vegetative Filter Strips Length Using VFSMOD_W Model for Reducing Sediments and Pesticides

Abstract The vegetative filter strips (VFS) are a useful tool used for reducing the movement of sediment and pesticide in therivers. The filter strip’s soil can help in reducing the runoff volume by infiltration. However, the characteristics of VFS (i.e., length) are not recently identified de...

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Autores principales:	Hayat Kareem Shukur, Dawood E. Sachit
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2017
Materias:	Models ,runoff, sediment, vegetative filter strip, , water quality, watershed planning. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/912ca4aafcb745ab9d894674361f147b
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spelling	oai:doaj.org-article:912ca4aafcb745ab9d894674361f147b2021-12-02T06:09:00ZDesign a Vegetative Filter Strips Length Using VFSMOD_W Model for Reducing Sediments and Pesticides10.22153/kej.2017.01.0051818-11712312-0789https://doaj.org/article/912ca4aafcb745ab9d894674361f147b2017-12-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/354https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 Abstract The vegetative filter strips (VFS) are a useful tool used for reducing the movement of sediment and pesticide in therivers. The filter strip’s soil can help in reducing the runoff volume by infiltration. However, the characteristics of VFS (i.e., length) are not recently identified depending on the estimation of VFS modeling performance. The aim of this research is to study these characteristics and determine acorrelation between filter strip length and percent reduction (trapping efficiency) for sediment, water, and pesticide. Two proposed pesticides(one has organic carbon sorption coefficient, Koc, of 147 L/kg which is more moveable than XXXX, and another one has a Koc of 2070 L/kg which is less moveable than XXXX) are presented, where the goal is to prevent 95% of incoming sediment and 85% of the incoming pesticide to reach a receiving stream in still water, Oklahoma from a cultivated field (1250 m²),for 2 hour storm with 5 years return period. Several VFS lengths were simulated including1, 3, 5, 6, 9, 11, 12, and 13 m. The results showed that the percent of reduction of sediment, pesticide, and water mainly depends on VFS lengths. Moreover, considering the design storms range, the simulation illustrated that the optimal filter length was13m for silty clay loam. When the value of was increased from 147 L/kg to 6070 L/kg, the filter length decreased from 13 to 9.5 because of the increase in trapping efficiency. In addition, the results revealed that the trapping efficiency was for sediment but not for water orpesticide which was highly impacted by the narrow filter strips. The amount of the rainfall and runoff of the designated field was larger than the infiltration capacity of filter strips, which resulted in low trapping efficiency for pesticide and water. Keywords: Models ,runoff, sediment, vegetative filter strip, , water quality, watershed planning. Hayat Kareem ShukurDawood E. SachitAl-Khwarizmi College of Engineering – University of BaghdadarticleModels ,runoff, sediment, vegetative filter strip, , water quality, watershed planning.Chemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 13, Iss 2 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Models ,runoff, sediment, vegetative filter strip, , water quality, watershed planning. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Models ,runoff, sediment, vegetative filter strip, , water quality, watershed planning. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Hayat Kareem Shukur Dawood E. Sachit Design a Vegetative Filter Strips Length Using VFSMOD_W Model for Reducing Sediments and Pesticides
description	Abstract The vegetative filter strips (VFS) are a useful tool used for reducing the movement of sediment and pesticide in therivers. The filter strip’s soil can help in reducing the runoff volume by infiltration. However, the characteristics of VFS (i.e., length) are not recently identified depending on the estimation of VFS modeling performance. The aim of this research is to study these characteristics and determine acorrelation between filter strip length and percent reduction (trapping efficiency) for sediment, water, and pesticide. Two proposed pesticides(one has organic carbon sorption coefficient, Koc, of 147 L/kg which is more moveable than XXXX, and another one has a Koc of 2070 L/kg which is less moveable than XXXX) are presented, where the goal is to prevent 95% of incoming sediment and 85% of the incoming pesticide to reach a receiving stream in still water, Oklahoma from a cultivated field (1250 m²),for 2 hour storm with 5 years return period. Several VFS lengths were simulated including1, 3, 5, 6, 9, 11, 12, and 13 m. The results showed that the percent of reduction of sediment, pesticide, and water mainly depends on VFS lengths. Moreover, considering the design storms range, the simulation illustrated that the optimal filter length was13m for silty clay loam. When the value of was increased from 147 L/kg to 6070 L/kg, the filter length decreased from 13 to 9.5 because of the increase in trapping efficiency. In addition, the results revealed that the trapping efficiency was for sediment but not for water orpesticide which was highly impacted by the narrow filter strips. The amount of the rainfall and runoff of the designated field was larger than the infiltration capacity of filter strips, which resulted in low trapping efficiency for pesticide and water. Keywords: Models ,runoff, sediment, vegetative filter strip, , water quality, watershed planning.
format	article
author	Hayat Kareem Shukur Dawood E. Sachit
author_facet	Hayat Kareem Shukur Dawood E. Sachit
author_sort	Hayat Kareem Shukur
title	Design a Vegetative Filter Strips Length Using VFSMOD_W Model for Reducing Sediments and Pesticides
title_short	Design a Vegetative Filter Strips Length Using VFSMOD_W Model for Reducing Sediments and Pesticides
title_full	Design a Vegetative Filter Strips Length Using VFSMOD_W Model for Reducing Sediments and Pesticides
title_fullStr	Design a Vegetative Filter Strips Length Using VFSMOD_W Model for Reducing Sediments and Pesticides
title_full_unstemmed	Design a Vegetative Filter Strips Length Using VFSMOD_W Model for Reducing Sediments and Pesticides
title_sort	design a vegetative filter strips length using vfsmod_w model for reducing sediments and pesticides
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2017
url	https://doaj.org/article/912ca4aafcb745ab9d894674361f147b
work_keys_str_mv	AT hayatkareemshukur designavegetativefilterstripslengthusingvfsmodwmodelforreducingsedimentsandpesticides AT dawoodesachit designavegetativefilterstripslengthusingvfsmodwmodelforreducingsedimentsandpesticides
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Design a Vegetative Filter Strips Length Using VFSMOD_W Model for Reducing Sediments and Pesticides

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