Pollution source diffusion early-warning method based on water quality on-line monitoring system

Abstract

The invention discloses a pollution source diffusion early-warning method based on a water quality on-line monitoring system. The method comprises the following steps of S01, monitoring water quality current situation of each monitoring station in an area in real time through the water quality on-line monitoring system; S02, confirming a pollution source being warned; S03, acquiring real-time monitoring data of excessive pollutants at the monitoring station where the pollution source is located; S04, selecting a river where the station is located to simulate a terminal; S05, inputting relevant parameters of a river section to be simulated; S06, calculating a one-dimensional steady-state water quality model; S07, rendering a pollutant concentration gradient for the simulated river section and carrying out early-warning information judgment. The one-dimensional steady-state model applied by the invention is independent of specific riverway geographic information and terrain parameters, only relates to hydrologic condition flux and flow velocity of riverways, can be automatically modeled according to GIS (Geographic Information System) information, and is strong in universality.

Description

technical field [0001] The invention relates to the field of river water quality monitoring, in particular to a pollution source diffusion early warning method based on an online water quality monitoring system. Background technique [0002] In 2009, the Ministry of Environmental Protection issued the "Outline for the Construction of Advanced Environmental Monitoring and Early Warning System (2010-2020)", which proposed to accelerate the establishment of an advanced environmental monitoring and early warning system and comprehensively promote the historic transformation of environmental monitoring. On-line monitoring and early warning system of pollution sources is an important part of building an advanced environmental early warning system. The construction of the early warning system is in the ascendant in our country, and there is an urgent need for various software facilities for the construction of the early warning system. [0003] Based on different application goals...

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Problems solved by technology

However, it needs to rely on specific spatial geographic information, cannot use GIS system to automatically model, cannot be used universally, and has relatively large limitations

[0008] Similarly, in "Research on Pollution Monitoring, Early Warning and Emergency Management Based on Water Quality Model" (Wang Chengjin et al., Northern Environment, 2013, Volume 29, Issue 5), a pollution monitoring and early warning method based on water quality model was disclosed to establish the diffusion of water quality pollution. Based on the model, combined with the current situation of surface water environmental management in my country, a set of surface water pollution monitoring, early warning and emergency management system is proposed, which still needs to rely on specific spatial and geographical information, which has great limitations

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