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Method for analyzing pollutant source of inorganic nutrients

An inorganic nutrient and analysis method technology, applied in the field of analysis of inorganic nutrient salt pollution sources, can solve problems such as heavy workload, achieve the effects of small investment, improve work efficiency, and save time

Inactive Publication Date: 2012-06-20
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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Problems solved by technology

[0008] To sum up, most of the methods for analyzing the sources of inorganic nutrient salt pollution in the prior art above carry out a large-scale general survey on the analysis of pollution sources in lake basins, and then calculate the amount of pollutants reaching the target water source according to the transport and degradation process of pollutants, and analyze the sources of pollutants in the target water area. This method has a large workload, and it is necessary to predict the location and intensity of pollution sources, and analyze the pollutant sources in the target waters according to the impact of different pollution sources on the target waters

Method used

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  • Method for analyzing pollutant source of inorganic nutrients
  • Method for analyzing pollutant source of inorganic nutrients
  • Method for analyzing pollutant source of inorganic nutrients

Examples

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Effect test

Embodiment 1

[0022] Combined with the attachment to illustrate the specific implementation of the present invention, such as figure 1 It is shown that the main technical process of the present invention is to set multiple survey and observation points based on the natural characteristics of the lake (terrain, distribution of river channels, wind speed and wind direction) and environmental characteristics to determine the types of sample collection (water sample, sediment, creature)The quantity, and the indicators of various sample analysis, conduct on -site surveys, sample collection, and indicator analysis, obtain the basic data of the analysis of the source of inferior nutritional salt pollution sources. On this basisCarry out the analysis of the correlation and mutual conversion position of the sub -meter, and use the linear interpolation method to obtain the distribution of the main pollution factors of the research area or the lake, and determine the gradient variation of the factor space...

Embodiment 2

[0040] According to the steps of the implementation example 1, select the analysis of the inorganic nutritional salt pollution sources of Meiliang Bay, Gonghu Bay, Lake East Binnabis District and Dong Taihu Water source in the east of Taihu Lake, and find out the main control factor and pollution source of the water source pollution.Table 1 is the main pollution factors and contribution rates of the east half of the Taihu Lake in the east half of the Taihu Lake based on the analysis of the test data.

[0041] Table 1 The analysis and contribution rate of main pollution factors in the east half of Taihu Lake

[0042]

[0043] The contribution rate of the main factors is combined with the spatial GPS data of the sample. The interpolation of the Kriging space is used to obtain the spatial distribution characteristics of each primary factor to determine the main source of pollutants.

[0044] Table 2 is based on the conclusions obtained by Table 1 combined with the main pollutant so...

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Abstract

The invention belongs to the technical field of analysis of pollutant sources of water area environments, and relates to a method for analyzing pollutant sources of inorganic nutrients. The method mainly includes the steps: analyzing problems and characteristics of a water area environment and setting sampling points by centering on a focusing water area; determining observation and water sample analysis index sets for observing and sampling according to the problems and the characteristics of a water area environment; analyzing a water sample, performing dimensionless treatment for indexes, analyzing factors, determining the factors with a cumulative contribution rate higher than 80% as main pollution control factors, and obtaining the indexes with high relevancy to the main control factors in the index sets; computing scores of the main control factors at monitoring points, scoring at different positions of the research water area by a linear interpolation method and determining gradient space distribution of the main control factors and the positions of the maximum value and the minimum value of the main control factors; and judging main sources of pollutants according to cause-and-effect relationship of the relevancy indexes of the main control factors, the position of a river mouth, the score gradient of the main control factors, and space and size distribution characteristics of the main control factors.

Description

Technical field [0001] The invention is the field of environmental pollution material analysis technology in the water area, involving an analysis method of an inorganic nutritional salt pollution source. Background technique [0002] With the development of economy and society, surface water nitrogen and phosphorus pollution are serious, and different degrees of nutritionalism have occurred, which greatly threatens the health of the people.The source of inorganic nutrients such as nitrogen and phosphorus is an important prerequisite for protecting water quality. [0003] Qian Xiaoyong and others (Qian Xiaoyong and others. Agricultural face source pollution analysis and heterogeneity based on water environmental function zone.The analysis method of agricultural facial source pollution in the environmental function zone, through the list analysis method and equivalent pollution loading method, studied the application of fertilizer, organic fertilizer application, crop straw, poult...

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Application Information

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IPC IPC(8): G01N33/18
CPCY02A20/20
Inventor 胡维平李钦钦邓建才
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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