Analysis of the Water Quality Improvement in Urban Stream Using MIKE 21 FM

Domestic urban streams face insufficient base flow and consequently become dry streams in drought season, and vulnerable to water quality deterioration and ecological impairment, due to contaminants introduced from the urban pollutants. Many efforts are being made to improve the natural flow by acti...

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Main Author: Dongwoo Jang
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/19/8890
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author Dongwoo Jang
author_facet Dongwoo Jang
author_sort Dongwoo Jang
collection DOAJ
description Domestic urban streams face insufficient base flow and consequently become dry streams in drought season, and vulnerable to water quality deterioration and ecological impairment, due to contaminants introduced from the urban pollutants. Many efforts are being made to improve the natural flow by actively enforcing restoration projects of urban streams. Gulpocheon is a national stream flowing through Incheon-si and Gimpo-si. As of March 2019, the reclaimed wastewater or the ozone-processed Gulpo treated sewage has formed the upper part of Gulpocheon. This study aimed to analyze the improvement in water quality of Gulpocheon before and after supplying the reclaimed water by collecting the water quality data of the target area. Before and after providing the base flow, the water quality was analyzed using the two-dimensional numerical analysis model, i.e., MIKE 21 FM. The water quality one year before and after supplying the reclaimed water was compared, with a focus on DO, BOD, TN, and TP; they are used as water quality standards for stream water. The concentration of DO at all spots of Gulpocheon increased on average. The concentration of BOD, TN, and TP water quality parameters decreased, indicating water quality improvement. In addition, accurate water quality assessment is possible using MIKE 21 FM model simulation for urban stream analysis.
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spelling doaj.art-e6acc97392054e90912ab6a4ac6943992023-11-22T15:44:32ZengMDPI AGApplied Sciences2076-34172021-09-011119889010.3390/app11198890Analysis of the Water Quality Improvement in Urban Stream Using MIKE 21 FMDongwoo Jang0Department of Civil & Environmental Engineering, Incheon National University, Incheon 22012, KoreaDomestic urban streams face insufficient base flow and consequently become dry streams in drought season, and vulnerable to water quality deterioration and ecological impairment, due to contaminants introduced from the urban pollutants. Many efforts are being made to improve the natural flow by actively enforcing restoration projects of urban streams. Gulpocheon is a national stream flowing through Incheon-si and Gimpo-si. As of March 2019, the reclaimed wastewater or the ozone-processed Gulpo treated sewage has formed the upper part of Gulpocheon. This study aimed to analyze the improvement in water quality of Gulpocheon before and after supplying the reclaimed water by collecting the water quality data of the target area. Before and after providing the base flow, the water quality was analyzed using the two-dimensional numerical analysis model, i.e., MIKE 21 FM. The water quality one year before and after supplying the reclaimed water was compared, with a focus on DO, BOD, TN, and TP; they are used as water quality standards for stream water. The concentration of DO at all spots of Gulpocheon increased on average. The concentration of BOD, TN, and TP water quality parameters decreased, indicating water quality improvement. In addition, accurate water quality assessment is possible using MIKE 21 FM model simulation for urban stream analysis.https://www.mdpi.com/2076-3417/11/19/8890ozone treatmentreclaimed waterwater quality analysisnumerical analysis
spellingShingle Dongwoo Jang
Analysis of the Water Quality Improvement in Urban Stream Using MIKE 21 FM
Applied Sciences
ozone treatment
reclaimed water
water quality analysis
numerical analysis
title Analysis of the Water Quality Improvement in Urban Stream Using MIKE 21 FM
title_full Analysis of the Water Quality Improvement in Urban Stream Using MIKE 21 FM
title_fullStr Analysis of the Water Quality Improvement in Urban Stream Using MIKE 21 FM
title_full_unstemmed Analysis of the Water Quality Improvement in Urban Stream Using MIKE 21 FM
title_short Analysis of the Water Quality Improvement in Urban Stream Using MIKE 21 FM
title_sort analysis of the water quality improvement in urban stream using mike 21 fm
topic ozone treatment
reclaimed water
water quality analysis
numerical analysis
url https://www.mdpi.com/2076-3417/11/19/8890
work_keys_str_mv AT dongwoojang analysisofthewaterqualityimprovementinurbanstreamusingmike21fm