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Sediment covered restoring method for eutrophic water

A restoration method and eutrophication technology, applied in the field of environmental governance, to achieve the improvement and optimization of sediment structure, high governance technical indicators, and good control effects

Inactive Publication Date: 2011-04-27
常熟紫金知识产权服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are no such research results in the prior art

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  • Sediment covered restoring method for eutrophic water
  • Sediment covered restoring method for eutrophic water
  • Sediment covered restoring method for eutrophic water

Examples

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Embodiment 1

[0050] Example 1, referring to Figure 2, Kunming Dianchi Lake eutrophication water sediment masking restoration method, after field investigation and optimization, the selected field site for field restoration this time is in the adjacent lake pond close to the east bank of Dianchi Lake, located in Chenggong, Kunming City 1km west of Meizi Village, Dounan Town, County.

[0051] Method and process:

[0052] (1) Selection of masking materials:

[0053] The local red soil is preferred. The laterite was collected from the east side of the Songhuaba Reservoir area (25°07′N, 102°39′E) and Kunming Baini Mountain in Kunming City, Yunnan Province in October 2002 (refer to Figure 3-1, 3-2), all are natural weathered laterites without human disturbance. When sampling, grooves were carved down from the surface to a depth of 5m.

[0054] (2) Pretreatment of masking materials: After pulverizing and mixing, all samples are air-dried (water content is 3.5%), passed through 20 mesh, then fi...

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Abstract

The invention relates to a capping remediation method of eutrophic water body sediment comprising the following steps: 1) selecting clay as capping material+ADs- 2) pretreating the capping material and an additive through grinding and through 300 mesh sieve, heat drying at 200 DEG C for 3h, placing in a drier for standby+ADs- 3) adding appropriate additive to the pretreated capping material+ADs- 4) directly applying the capping material obtained from the step 3 into the lake water body+ADs- 5) testing the capping effect+ADs- 6) according to the test result in the step 5, adjusting the amount of the capping material and the types or amounts of the additive. Compared with the capping scheme of the prior art, the invention has essential difference. The invention selects suitable time, directly applies the laterite and auxiliary materials into the lake water body, which, on one hand, removes nitrogen, phosphor and other nutritious salts in the water body, on the other hand, simultaneously forms a layer of film on the surface of the sediment so as to block the release of nitrogen, phosphor and other nutritious salts in the sediment and the floating and breeding of algae biology, thereby reaching the purpose of treatment.

Description

Technical field [0001] This application involves an environmental governance method, which specifically involves a method of covering the mud covering and repair method of a nutritional water body.Invention is based on the comprehensive survey of the National Key Laboratory's key project "Dianchi Basin's Water Resources and Ecological Environment" (number: 005301), and the National Natural Science Foundation "Dianchi Basin Extraction and Deposition Source Source of the Dianchi Basin" (ResearchNumber: 40473052) and Yunnan Environmental Protection Bureau Science and Technology Development Plan Project "Dianchi Lake's Research Principles and Application Device Study on the Research on the Dormation of the Dormation of the Dianchi". Background technique [0002] With the rapid development of industry and agriculture and the acceleration of urbanization and development activities, the total amount of wastewater and urban domestic sewage discharge of wastewater and urban and towns have...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/00E02B3/02
Inventor 杨浩
Owner 常熟紫金知识产权服务有限公司
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