A Temporal-Spatial Simulation and Dynamic Regulation System of Water Quality on Sudden Water Pollution Accidents

2014 ◽  
Vol 556-562 ◽  
pp. 925-928 ◽  
Author(s):  
Bo Zhang ◽  
Shao Hui Yang ◽  
Qian Ting Hao ◽  
Chao Hui Yu
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Regulation System ◽  
Dimensional System ◽  
Spatial Simulation ◽  
Quality Model ◽  
Dynamic Regulation ◽  
Songhua River ◽  
Spatial Dimensions ◽  
Sudden Water Pollution

We develop a novel system for temporal-spatial simulation and dynamic regulation of water quality in water pollution accidents by introducing GIS to traditional one-dimensional system dynamics water quality model. We apply this system to the Songhua River water pollution accident which happened in 2005 and achieve good performance in simulating pollution zone migration and transformation in temporal and spatial dimensions.

SD–GIS-based temporal–spatial simulation of water quality in sudden water pollution accidents

2011 ◽  
Vol 37 (7) ◽  
pp. 874-882 ◽  
Author(s):  
Bo Zhang ◽  
Yu Qin ◽  
Mingxiang Huang ◽  
Qiang Sun ◽  
Shun Li ◽  
...  
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Spatial Simulation ◽  
Sudden Water Pollution

scholarly journals Emergency measure of soft isolation controlling pollution diffusion response to sudden water pollution accidents

2019 ◽  
Vol 80 (7) ◽  
pp. 1238-1248
Author(s):  
Fanghui Pan ◽  
Youbao Wang ◽  
Xinxi Zhang
Keyword(s):  
Water Pollution ◽  
Water Environment ◽  
Quality Model ◽  
Complete Purification ◽  
Emergency Measure ◽  
Pollutant Source ◽  
Computational Fluid Dynamics Cfd ◽  
Sudden Water Pollution ◽  
Stage 1 ◽  
The Mathematical Model

Abstract The frequent occurrence of sudden water pollution accidents has become a major threat to water environment safety. Although most researches have focused on constructing a pollutant source identification model and risk assessment methods for dealing with sudden water pollution accidents, a real-time, effective emergency measure for controlling pollutant diffusion, isolating and removing the pollutant, aiming at sudden water pollution accidents, has not been emphasized. Therefore, in this paper, a novel emergency approach of soft isolation was investigated to control pollution diffusion and decrease damage as soon as the accident occurred. In stage 1, the feature of pollution diffusion regarding a sudden water accident was predicted through a water quality model using computational fluid dynamics (CFD). Then, a design scheme of soft isolation was constructed in stage 2 to isolate the polluted zone and attention was paid to optimizing the parameters of soft isolation. Ultimately, the mathematical model of complete purification was formulated in stage 3 to remove the pollution from the impacted zone. The results indicated that the emergency measure of soft isolation could have significant potential to control and isolate pollution occurring in a sudden water pollution accident in the future.

Application of Various Space Dimensional Water Quality Model in Different Areas

2014 ◽  
Vol 1010-1012 ◽  
pp. 456-461 ◽  
Author(s):  
Jia Zhou ◽  
Li Liu ◽  
Li Min Ma
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Pollution Control ◽  
Water Quality Model ◽  
One Dimension ◽  
Quality Model ◽  
Efficient Tool ◽  
Quality Planning ◽  
Dimension One ◽  
Control Water

The water quality model is an efficient tool for water pollution control, water quality planning and environmental management. In accordance with the need of prediction, analysis and management of water quality, this article presents different application conditions for various water quality model, including zero-dimension, one-dimension, two-dimension and multidimensional. Then the application of water quality model in different areas are summarized here.

scholarly journals Spatio-Temporal Variation of Heavy Metal Pollution during Accidents: A Case Study of the Heshangshan Protected Water Area, China

2019 ◽  
Vol 11 (24) ◽  
pp. 6919 ◽  
Author(s):  
Xiaowen Ding ◽  
Yue Tan ◽  
Baodeng Hou
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Iron Concentration ◽  
Social Economy ◽  
Temporal Variations ◽  
Water Area ◽  
Quality Model ◽  
Accident Scenario ◽  
Quality Of Water ◽  
Spatio Temporal

Recently, water environmental accidents have occasionally occurred which have had wide-ranging influences, long durations and are difficult to deal with. The development of the social economy, the acceleration of industrialization, the huge discharge of industrial wastewater and the occasional occurrence of ship transportation accidents pose serious threats to the water quality of water inlets and protected water areas. This article applied the two-dimensional water quality model, used a GIS platform and FORTRAN language, and predicted spatio-temporal variations of the iron concentration during a water pollution accident. This research selected the water inlet of Heshangshan Water Plant and the Heshangshan protected water area as the research objective, and assumed a water pollution event had occurred. It was suggested that we should take corresponding emergency measures and relevant solutions to deal with the bad effects of water pollution accidents. The processes mainly included the selection of the study area, the determination of the equation to be used, parameters determination, as well as the identification of the accident scenario and source. The durations of the iron concentration exceeding the standard at the water inlet were 12–18 min and in the protected water area were 16–36 min in four water periods after the accident. In addition, the durations taken for the iron concentration to decrease to the background value in the protected water area were 18–38 min after the accident in four water periods in the accident scenario. Relevant departments should take some contingency measures to avoid fetching water from the intake after the accident within 40 min after the accident and the relevant staff can cancel the warning 40 min after the accident.

Utilizing GIS in the Development of Water Quality River Modeling for Penchala River, Malaysia

2014 ◽  
Vol 580-583 ◽  
pp. 2078-2081
Author(s):  
Faridah Othman ◽  
Alaa Eldin Mohamed Elamin ◽  
Siti Azireen Hezza Azahar ◽  
Siti Asiah Muhammad
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Urban Areas ◽  
Catchment Area ◽  
Storm Water ◽  
Rapid Manufacturing ◽  
Quality Model ◽  
Digital Map ◽  
River Modeling

The quality of river water has been an important issue, due to its significant important function to the human being. In Asia, Malaysia is considered as one of the most speedily urbanizing countries and it’s facing huge environmental challenges. An increased pressure on urban areas has been generated by rapid manufacturing especially in the Penchala River Basin. Penchala River originates from Kiara Hill and passes through several important townships as it flows through residential and industrial areas before meeting with Klang River. Although the river is relatively short, with an approximately 12 km in length with a catchment area of 28 kilometer square, this catchment is noted to be under environmental stress emanating from storm water pollution, solid waste, sedimentation and micro-pollutant. To study the water pollution issue, it is always best if it is tied up with the geographic information system. The objective of this study is to use the GIS for preparing and organizing the geometric data to satisfy the water quality model requirements. As a result of this study, a digital map for Penchala River has been created.

Study of Control for Phenol and Chlorophenols Sudden Pollution in Drinking Water by Using PAC Adsorption

2011 ◽  
Vol 236-238 ◽  
pp. 2410-2413
Author(s):  
Mo Zhou ◽  
Hai Bo Wu ◽  
Gang Ren ◽  
Ming Yu Li
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Drinking Water ◽  
Technical Solution ◽  
Source Water ◽  
Raw Water ◽  
Langmuir Adsorption ◽  
Proper Order ◽  
Adsorption Mode ◽  
Sudden Water Pollution

Phenol and chlorophenols (CPs) are main toxic organic pollutants detected generally in source water. In the present studies, removal efficiency of phenol and CPs by using PAC adsorption was investigated, base on the control of drinking water sudden pollution. The results showed that the removal of phenol and CPs was essentially complete within 2 hours, and that the adsorption ratio in proper order was: 2, 4, 6- TCP > 2, 4- DCP > 2- MCP > PCP > phenol. The adsorption isotherm of phenol and CPs by PAC was consistent with the Freundlich and Langmuir adsorption mode. The study on the raw water collected from a lake in a university also provided the evidence that water quality affected the adsorption rate and adsorption capacity apparently. The phenol and CPs in sudden water pollution accidents was removed by addition of 20mgL-1 PAC. Results provided technical solution for water pollution accidents to cope with phenol and CPs sudden.

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