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Article

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

Department of Civil & Environmental Engineering, Incheon National University, Incheon 22012, Korea
Academic Editor: Vlasoula Bekiari
Appl. Sci. 2021, 11(19), 8890; https://doi.org/10.3390/app11198890
Received: 20 August 2021 / Revised: 18 September 2021 / Accepted: 21 September 2021 / Published: 24 September 2021
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. View Full-Text
Keywords: ozone treatment; reclaimed water; water quality analysis; numerical analysis ozone treatment; reclaimed water; water quality analysis; numerical analysis
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MDPI and ACS Style

Jang, D. Analysis of the Water Quality Improvement in Urban Stream Using MIKE 21 FM. Appl. Sci. 2021, 11, 8890. https://doi.org/10.3390/app11198890

AMA Style

Jang D. Analysis of the Water Quality Improvement in Urban Stream Using MIKE 21 FM. Applied Sciences. 2021; 11(19):8890. https://doi.org/10.3390/app11198890

Chicago/Turabian Style

Jang, Dongwoo. 2021. "Analysis of the Water Quality Improvement in Urban Stream Using MIKE 21 FM" Applied Sciences 11, no. 19: 8890. https://doi.org/10.3390/app11198890

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