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

Jang, Dongwoo

doi:10.3390/app11198890

Cited by 2 publications

(1 citation statement)

References 13 publications

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“…The basic data for the study are from the monitoring data from 2017 to 2019 of Yangxian Environmental Protection Bureau [15,16]. We selected the pH, dissolved oxygen (DO), permanganate index (COD Mn ), chemical oxygen demand (COD), fiveday biochemical oxygen demand (BOD 5 ), fluoride (F -), ammonia nitrogen (NH 3 -N), total phosphorus (TP) and total nitrogen (TN) of 10 monitoring sections, and evaluate the water quality according to the Environmental Quality Standards for Surface Water [17].…”

Section: Data Sourcesmentioning

confidence: 99%

Prediction and Analysis of Water Environment Elements Evolution Law of Water Diversion System from Hanjiang to Weihe River Project

Chen,

Wu,

et al. 2023

Advances in Transdisciplinary Engineering

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In this study, in order to reveal the hydrodynamic characteristics and water quality evolution law of Water Diversion System from Hanjiang to Weihe River project Huangjinxia and Sanhekou reservoirs in the water source area and the tunnels in the water transmission area were selected. By using MIKE software to establish a hydrodynamic and water quality mathematical model, the topological structure of the water transfer system was analyzed, the hydrodynamic conditions and pollutant migration and transformation process of the study area were simulated, and the hydrodynamic characteristics of the system and the evolution law of water quality were revealed. The results are as follows. (1) The hydrodynamic simulation results show that the different typical annual average velocity in the Huangjinxia reservoir area decreases from 0.173m/s at the end of the reservoir to 0.025m/s at the front of the dam, showing a decreasing trend. The inlet velocity of the Huangsan section of the tunnel is 0.959m/s, and the velocity increases to 1.590m/s when the inflow into the Sanhekou water source area. (2) From the distribution characteristics of NH3-N, COD and TN concentrations, it can be seen that the water quality of the water transfer system has improved along the water transfer route, from the end of Huangjinxia reservoir to the exit of the water transfer tunnel. The average annual concentrations of NH3-N, COD and TN decreased from 0.248, 11.211 and 2.308mg/L to 0.241, 11.059 and 2.076mg/L, respectively. Among them, after the inflow from Sanhekou reservoir area was collected at Sanhekou control sluice, the concentrations of NH3-N, COD and TN were reduced to 0.202, 9.966 and 1.215mg/L, respectively, and the water quality was significantly improved.

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Section: Data Sourcesmentioning

confidence: 99%

Prediction and Analysis of Water Environment Elements Evolution Law of Water Diversion System from Hanjiang to Weihe River Project

Chen,

Wu,

et al. 2023

Advances in Transdisciplinary Engineering

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Numerical Simulations of Sudden Oil Spills in Typical Cross-Border Rivers in the Yangtze River Delta Region

Lai

Jie

et al. 2022

Applied Sciences

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The Taipu River is an important cross-border river in the Yangtze River Delta region and a direct channel connecting Taihu Lake and Huangpu River. Along the main stream of the Taipu River are many sources of water, such as the Wujiang, Dingzha, and Liantang Rivers. Many boats traverse these rivers transporting a wide variety of goods, including large quantities of oil, chemicals, and other dangerous goods. In the event of accidents on these vessels, spilled cargo will directly threaten the drinking water safety of people in the region. Aiming at simulating and assessing the environmental risks of sudden oil spills in rivers in the Yangtze River Delta region, this paper established a two-dimensional oil spill model of the typical transboundary Taipu River based on the MIKE21 water environment numerical simulation software developed by the Danish Institute of Water Conservancy. The established model will improve emergency response and treatment plans as well as our understanding of river oil spill progressions.

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

Cited by 2 publications

References 13 publications

Prediction and Analysis of Water Environment Elements Evolution Law of Water Diversion System from Hanjiang to Weihe River Project

Prediction and Analysis of Water Environment Elements Evolution Law of Water Diversion System from Hanjiang to Weihe River Project

Numerical Simulations of Sudden Oil Spills in Typical Cross-Border Rivers in the Yangtze River Delta Region

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