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Method for utilizing movement of animals to dredge base material to prevent wetland sewage system from being plugged by sludge

A technology for sewage system and sewage treatment system, which is applied in the field of preventing the blockage of wetland sewage system, can solve the problems of stable microbial system damage, lack of better treatment methods, and heavy workload, so as to reduce disturbance and damage and increase economic output. , the effect of reducing maintenance costs

Active Publication Date: 2018-06-29
HAINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after wetland silting occurs, there is no better treatment method except for replacing the filler.
This method requires a lot of work, costs more, and has a devastating effect on the stable microbial system that has been formed in the wetland.

Method used

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  • Method for utilizing movement of animals to dredge base material to prevent wetland sewage system from being plugged by sludge
  • Method for utilizing movement of animals to dredge base material to prevent wetland sewage system from being plugged by sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4、 comparative example 1-4

[0031] Table 1:

[0032]

[0033] In the same place, under the same water and heat conditions, a constructed wetland is divided into 8 test areas with equal area on average, and managed according to Examples 1-4 and Comparative Examples 1-4 for 1 year, the test results are shown in Table 2 and Table 3 :

[0034] Table 2. Harvesting status of Procambarus clarkii:

[0035]

[0036] Table 3. Wetland water quality:

[0037]

unit

Example 1

Example 2

Example 3

Example 4

Comparative example 1

Comparative example 2

Comparative example 3

Comparative example 4

COD

mg / L

40.2

39.9

39.4

40.1

41.3

42.0

41.1

40.9

BOD 5

mg / L

4.7

4.9

4.6

5.2

5.4

5.8

5.3

5.8

SS

mg / L

11.8

11.3

10.9

12.4

12.6

12.5

12.8

12.6

TN

mg / L

7.3

7.5

7.0

7.5

7.9

8.2

7.8

7.9

TP

mg / L

0.70

0.68

0.65

0.72

0.75 ...

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PUM

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Abstract

The invention provides a method for utilizing movement of animals to dredge a base material to prevent a wetland sewage system from being plugged by sludge. According to the method, the base materialis dredged by utilizing the characteristics of procambarus clarkii that the feeding range is wide, the growing speed is high, the adaptability is high and the endurance capability to a polluted environment is high, and the living habit that the procambarus clarkii love to survive and live by burrowing in sludge, and thus the purpose that the wetland sewage system plugged by sludge is prevented through vital movement of the procambarus clarkii is realized.

Description

technical field [0001] The invention relates to the fields of artificial wetland dredging and aquaculture, in particular to a method for preventing wetland sewage system from being silted up by utilizing animal activities to dredge substrates. Background technique [0002] The artificial wetland sewage treatment system is a ground similar to a swamp that is artificially constructed and operated under control. Sewage and sludge are distributed to the artificially constructed wetland in a controlled manner. The sewage and sludge flow in a certain direction It is a technology that mainly uses the physical, chemical and biological triple synergy of soil, artificial medium, plants and microorganisms to treat sewage and sludge. During the use of the constructed wetland sewage treatment system, filler silting will occur, which greatly limits the efficacy of the constructed wetland. At present, for the silting problem of constructed wetland filler, the method of pretreatment of inf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32A01K61/59
CPCA01K61/59C02F3/327Y02A40/81
Inventor 王旭李梓钰李滨李建涛李达毅苏娇
Owner HAINAN UNIVERSITY
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