Accident Source Location Method for Sudden Cod Pollution of Rivers
A positioning method and river pollution technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problem of long accident source investigation cycle, prolong pollution duration, increase the difficulty and cost of restoration and control, and increase pollution degree, etc. question
Inactive Publication Date: 2015-11-04
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology
The long investigation cycle of the accident source prolongs the duration of pollution, aggravates the degree of pollution, and greatly increases the difficulty and cost of recovery and treatment in the later stage
Method used
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Embodiment 1
[0064] The method of the present invention is used to deal with the sudden COD pollution incident that occurred in the XX section of the XX city in 2010, and to investigate and determine the location of the source of the accident. In this sudden COD pollution incident, the timing of a sewage enterprise’s shutdown for maintenance and maintenance is regarded as a normal situation, and no waste water enters the river for maintenance, and normal pollution after the maintenance is regarded as a sudden COD pollution incident.
[0065] figure 1 Schematic diagram for controlling the range of the river reach and the location of each section. According to the on-site monitoring data, determine the T range of the control section, and determine the position of the control section CK and the control section CL. Obtain the background data of pollution source information (see Table 1) from the local environmental protection department, obtain the distribution of each sewage outlet in the co...
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The invention discloses an accident source positioning method of river emergent chemical oxygen demand (COD) pollution. The accident source positioning method of the river emergent COD pollution resolves the problems that in the prior art, due to the fact that a quick positioning method of a pollution source to a river basin emergent COD pollution accident is not available, an accident investigation period is long and accident investigation efficiency is low. After pollution happens, firstly a control river reach position and background data of a contrast section, a control section and a pollution section are determined through on site investigation, then prediction value of pollutant concentration change on the control section is measured and calculated based on physical and chemical laws of degradation of the COD pollutant in a natural water body, and lastly, the prediction value is compared with the monitoring value of the pollutant concentration on the control section of the control river reach to determine the position of an over-standard drain outlet, and thus the accident source position is determined. The accident source positioning method of the river emergent COD pollution can confirm the position of the accidence source in a watercourse or locks a suspected accident source as soon as possible, and shorten the investigation period of a pollution accident to a large extent.
Description
technical field [0001] The invention relates to a method for locating the source of a river pollution accident, in particular to a method for locating an accident pollution source of a sudden COD pollution accident in a river. Background technique [0002] COD (Chemical Oxygen Demand, chemical oxygen demand) pollution refers to river pollution caused by COD pollutants. COD pollutants are a proxy for monitoring organic pollutants by chemical methods, mainly organic compounds containing nitrogen and phosphorus. Such organic pollutants can be decomposed and absorbed by microorganisms, but the process of microbial decomposition, absorption, reproduction and growth requires a large amount of dissolved oxygen in the water, so it will cause the death of aquatic organisms due to hypoxia and suffocation, and the water quality will deteriorate. COD pollutants are the most common pollutants in natural water bodies. River pollution accidents caused by COD pollutants are the most common...
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IPC IPC(8): G06F19/00
Inventor 刘颖欧阳峰李勇龚正君陈钰王东梅
Owner SOUTHWEST JIAOTONG UNIV