Method for estimating nonpoint source pollution load of village adjacent to river

A non-point source pollution and village technology, applied in computing, special data processing applications, instruments, etc., can solve problems such as complex models, inability to realize non-point source pollution load accounting, high data and personnel requirements, etc., and achieve calculation results Reasonable, convenient control and management measures, rigorous calculation results

Active Publication Date: 2011-09-28
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

The disadvantage is that it has high requirements for data and personnel, and the whole model is relatively complicated; and in view of the lack of laying of drainage pipe networks in villages in my country, the conditions for applying this type of model are extremely unsatisfactory
[0031] At present, rural life pollution investigations have been carried out in the Taihu Lake, Dianc...

Method used

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  • Method for estimating nonpoint source pollution load of village adjacent to river
  • Method for estimating nonpoint source pollution load of village adjacent to river
  • Method for estimating nonpoint source pollution load of village adjacent to river

Examples

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Embodiment 1

[0072] Let's take a riverside village in a certain river basin as an example. In view of the lack of relevant statistical data in the statistical model, this only uses the concentration method to compare with the method of the present invention for illustration, and the process reference figure 1 .

[0073] 1. Basic data collection: Obtain basic information such as the cumulative average rainfall R1, R2, and R3 of light rain, moderate rain, and heavy to heavy rain in the area for many years, and the village area A from the local meteorological department or related documents;

[0074] The average annual rainfall in a village is 666.9mm, of which light rain, moderate rain, and heavy rain are 306.3mm, 237.2mm, and 123.4mm respectively; the village area A is 60315m 2 .

[0075] 2. Monitoring in the field:

[0076] Through field investigations, according to the conditions of slope land and runoff conditions, select the outlets of 2 to 3 runoff areas as monitoring points, monito...

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Abstract

The invention relates to a method for estimating the nonpoint source pollution load of a village adjacent to a river. The method comprises the following steps: 1) basic information collection, in which average rainfalls R1, R2 and R3 of years of accumulation for light rain, moderate rain and heavy rain to rainstorm in a certain place, village area A and other basic situations are acquired; 2) field detection, in which, every runoff coefficient, runoff duration and runoff yield area of rainfall duration, rainfall capacity and rainfall runoff of an effective rainfall number are detected, and chemical oxygen demand, total nitrogen and total phosphorus of a collected water sample are detected; and 3) nonpoint source pollution load model estimation, in which, the annual pollution loads of chemical oxygen demand, total nitrogen and total phosphorus of nonpoint source pollutants of the village by the river are calculated by adopting a formula. The calculation method provided by the inventionhas more guidance significance, and is convenient to develop related control and management measures.

Description

technical field [0001] The invention belongs to the field of estimating agricultural non-point source pollution loads, and in particular relates to a method for determining non-point source pollution loads in Linhe villages. Background technique [0002] In recent years, as people pay more attention to environmental problems, a kind of environmental pollution problems that are very common and not familiar to people have gradually been paid great attention to by the environmental protection departments of governments in various countries. This is non-point source pollution. Some domestic literature or It is also called non-point source pollution in the media, and it is usually called "non-point source pollution" in more formal and academic literature. [0003] Compared with point source pollution, non-point source pollution originates in scattered and diverse areas, and its geographical boundaries and occurrence locations are difficult to identify and determine. It has strong...

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Application Information

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IPC IPC(8): G06F19/00
Inventor 陈家军孙添伟王浩史震天
Owner BEIJING NORMAL UNIVERSITY
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