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Groundwater environment quality evaluation method

A technology of environmental quality and evaluation method, applied in the field of environmental engineering, can solve the problems of not considering the impact of weight on water quality, weak theory, unclear division of pollution levels, etc.

Inactive Publication Date: 2014-10-15
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Excessive emphasis on the impact of the maximum value on water pollution;
[0005] 2. The impact of the second largest value on water pollution is not considered;
[0006] 3. The impact of weight on water quality is not considered;
[0007] 4. The classification of pollution levels is not clear and the theory is not strong

Method used

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  • Groundwater environment quality evaluation method
  • Groundwater environment quality evaluation method
  • Groundwater environment quality evaluation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Example 1 Under the condition of 10 pollution factors, the groundwater of 8 sampling points such as the dairy farm in Panshi City was evaluated using the traditional, improved and improved Nimerow comprehensive pollution index method, and the evaluation results were analyzed.

[0084] 1 Determination of the weight of each pollution factor

[0085] Based on the Class III water body in the groundwater quality standard (GB / T14848-93), for 10 pollution factors, use the formula (3-7) to calculate the weight value of the groundwater pollution factor, see Table 1.

[0086] Table 1 Weight value of pollution factors

[0087] pollution factor

National standard class III

weight value w i

Total hardness (as CaCO 3 Count) (mg / L)

≤450

3.86×10 -6

Sulfate (mg / L)

≤250

6.94×10 -6

Chloride (mg / L)

≤250

6.94×10 -6

Volatile phenols (calculated as phenol) (mg / L)

≤0.002

0.87

Oxygen consumption (KmnO 4 met...

Embodiment 2

[0124] Example 2 Under the conditions of 13 pollution factors, the groundwater of 20 sampling points such as 106# in Panshi City was evaluated using the traditional, improved and improved Nimerow comprehensive pollution index method, and the evaluation results were analyzed.

[0125] 1 Determination of the weight of each pollution factor

[0126] Based on the Class III water body in the groundwater quality standard (GB / T14848-93), formula (3-7) is used to calculate the weight value of 13 pollution factors, see Table 7.

[0127] Table 7 Weight value of 13 pollution factors

[0128] pollution factor

National standard class III

weight value w i

Total hardness (as CaCO 3 Count) (mg / L)

≤450

3.76822×10 -6

Sulfate (mg / L)

≤250

6.78279×10 -6

Chloride (mg / L)

≤250

6.78279×10 -6

Volatile phenols (calculated as phenol) (mg / L)

≤0.002

0.847848659

Oxygen consumption (KmnO 4 method) (mg / L)

≤3.0

0....

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Abstract

The invention discloses a groundwater environment quality evaluation method. An improved formula and further improved formulas have the same definite physical significance, namely when each single index is equal to 1, Pj=1; when each single index is equal to 2, Pj=2; a characteristic that each single index is synchronous with a comprehensive index is achieved. Moreover, the groundwater environment quality evaluation method has the advantages of simple form and convenience for calculation.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering, and relates to a groundwater environmental quality evaluation method, in particular to the application of an improved Nimerow comprehensive pollution index method in the groundwater environmental quality evaluation. Background technique [0002] Nimerow's comprehensive pollution index method is a comprehensive index calculation formula that was applied earlier in my country, and it has been studied and applied more. In my country's groundwater quality environmental assessment standard (GB / T14848-93), the prototype of the recommended "annotated scoring method" is the Nimerow comprehensive pollution index method. Since this method is adopted in the national standard, it must have merits and potentials that can be developed. The dialectical analysis of the traditional Nimerow comprehensive pollution index method is carried out, its advantages and disadvantages are found, and sugge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 马成有贾丹王晔玲薛春荣
Owner JILIN UNIV
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