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The real-time time series data of multiple water quality parameters are obtained from the water sensor networks deployed in the water supply network. The accurate and efficient detection and warning of contamination events to prevent pollution from spreading is one of the most important issues when the pollution occurs. In order to comprehensively reduce the event detection deviation, a Temporal Abnormal...
This article is devoted to questions of mathematical modeling of the process of pollution of groundwater. The article describes the results of the work on the practical implementation of modeling algorithms. Work carried out by experts of the East Kazakhstan State Technical University. D.Serikbaev as part of a research project. The main objective of the project is the development of information-analytical...
Adopted a depth average two dimension non-invariablenes current numerical matrix, flow characteristics and permanganate index (CODMn) concentration field of Chuanweichang contamination zone around discharge outlet after water storage at water level of 156m have been simulated. Furthermore, Contamination zone around discharge outlet distribution figure were drew using TECPLOT software. Particularly,...
In recent years, the tremendous development of agriculture sector has been driven by the growing human population. Therefore, the crop productions need to be increased to fulfill the food demands. In order to do it, the amount of fertilizer used, might have been more than required and unabsorbed fertilizer by plants usually washed into water sources like rivers, ponds, and wells. Hence, the water...
Particular attention has recently been paid to bioassay systems that allow the responses of living organisms to be monitored to support water quality evaluation. This technology can complement traditional chemical inspection methods, which have limitations in terms of chemical substance coverage and inspection frequency. This paper proposes a bioassay system that can be used to detect the water contamination...
The fly ash storing site is an important environ-protection engineering, however, the operation of the already-built fly ash storing sites indicates that the pollution caused by fly-ashes to the atmosphere and water resources is an urgent problem to be further solved in the construction operation of fly-ash storing site. As viewed from the environ protection angle and with an aim at the problem of...
Temperature and concentration field model based on 3D turbulent flow model are developed in this paper. In modeling, porosity and VOF method are used. Using the new model, flow field, the diffuse laws of temperature and concentration field around outfall are simulated. Based on the modeling, the 3D diffuse laws of temperature and concentration field around outfall were obtained. And the modeling can...
The natural paly gorskite modified was as reactive media of PRB. Based on the investigation of effect of specific hydro chemical factors, such as Fe2+, Fe3+, Mn2+, NO3-, SO42- etc.,on remediation efficiency of petroleum contaminated groundwater, the dynamics, isothermal adsorption model and characterization of reactive media were studied. The results showed that the effect of purifying TPH with the...
A method for the optimization of sensor locations in water distribution networks is presented with respect to effective and efficient detection of contaminations. The optimization problem is formulated as a twin-objective minimization problem with the objectives being the sensor cost and the risk of contamination. Unlike past approaches, the risk of contamination is explicitly evaluated as the product...
It applies hydrodynamic Model to simulate COD of sewage around Xiaoyangkou, Rudong City, Jiangsu Province in this paper. Curvilinear orthogonal grid is used in interesting area, and hydrodynamics and water quality model are used to the current velocity field and tidal level field both on case of the spring and the neap tide. The computational results are compared with measured field data around drain...
In this paper, we are interested in the Robust Sensor Placement Problem (RSPP) in municipal water networks. As the contamination source and time are rather random and almost impossible to forecast, we aim to minimize the maximum population exposed over all contamination scenarios by placing a limited number of sensors into the network. We formulate a mixed-integer program model based on an absolute...
Oil production and processing industry result in a large number of petroleum hydrocarbon contaminants into groundwater system, destroy the original ecosystem and harm the human health. In this paper, groundwater system in an oil refinery was selected as the research object. In order to predict migration of petroleum hydrocarbon contaminants in groundwater system in the study area, effects of mechanical...
Notice of Violation of IEEE Publication Principles"Numerical Modelling of the Environment Impact of Landfill Leachate Leakage on Groundwater Quality--A Field Application",by Shao-Gang Dong, Zhong-Hua Tang, Bai-Wei Liu, O.D. Oroduin the Proceeedings of the 2009 International Conference on Environmental Science and Information Application Technology, ESIAT 09, pp. 565-568After careful and...
As a result of the large risk associated with the contamination of aquifers, it becomes imperative to protect groundwater supply areas. One of the practical methods that is projected for the protection of aquifers is to zone a boundary around current production in order to control hazardous industrial practices close to the wells supply. Nanping Highway is proposed to be constructed over a mineral...
In view of the deficiency of classic method evaluating water quality. A grey relational analysis model is proposed to evaluate water quality in river. The principle of grey relational analysis and its process are introduced. Suzhou river was selected and assessed by using this method. And it was found that, compared with the fuzzy complex judgment method, the result was remarkably different. The possible...
Heavy metals, such as cadmium, mercury etc, if not being properly disposed, may beget serious pollution to the environment, enter ecosystem sooner or later, and get into life chain and food chain, ultimately incur heavy threaten to humanpsilas health. Heavy metals enter the food chain via many ways, the first step pollutes the soil, after that pollutes plants which grow in the polluted soil; or directly...
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