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Multifunctional lake ecology restoration simulation device and use method as well as application

An ecological restoration and simulation device technology, which is applied in chemical instruments and methods, sustainable biological treatment, biological water/sewage treatment, etc., can solve the problem that lake eutrophication devices are difficult to simulate different lake ecological restoration methods, and achieve convenient simulation. Comparative study, low cost, convenient production effect

Inactive Publication Date: 2011-06-22
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved in the present invention is aimed at the increasingly serious problem of lake eutrophication and the difficulty of simulating different lake ecological restoration methods with existing devices. The present invention provides a method and device for simulating different lake ecological restoration methods, which can effectively simulate different lakes Ecological restoration means, which can promote the research on the mechanism of in-situ lake ecological restoration

Method used

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  • Multifunctional lake ecology restoration simulation device and use method as well as application
  • Multifunctional lake ecology restoration simulation device and use method as well as application
  • Multifunctional lake ecology restoration simulation device and use method as well as application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Indoor small test (to investigate the effect of sediment, plants, and microorganisms on the removal of nutrients in lake ecological restoration)

[0045] The device for simulating ecological restoration includes booster pump 4, culture solution inlet 9, denitrification microbial carrier 10, test column 11, water body sampling port 12, submerged water plant (Elodea) 13, sediment 15, sealing film 17, cultivation Liquid reservoir 18 and bottom plug 19. Since this small test uses natural light and only needs to meet the conditions of room temperature for different test columns, heating water tank 1, temperature probe 2, temperature controller 3, circulating water inlet 5, circulating water outlet 6, light intensity controller 7, halogen lamp The light source 8 is not provided in this embodiment. The distances from the sampling port 12 on the outer surface of the test column 11 to the bottom are 25 cm, 37 cm, and 45 cm, respectively. The nitrogen-removing microbial carrier...

Embodiment 2

[0068] Indoor small test (to investigate the impact of different lake ecological restoration methods on the number of sediment denitrifying bacteria)

[0069] The device for simulating ecological restoration includes a heating tank 1, a temperature probe 2, a temperature controller 3, a booster pump 4, a circulating water inlet 5, a circulating water outlet 6, a light intensity controller 7, a halogen light source 8, a culture solution inlet 9, Denitrification microbial carrier 10, test column 11, water body sampling port 12, submerged water plant (Elodea) 13, sediment 15, sealing film 17, culture solution storage tank 18 and bottom plug 19. The distances from the sampling port 12 on the outer surface of the test column 11 to the bottom are 25 cm, 37 cm, and 45 cm, respectively. The nitrogen-removing microbial carrier has a wet weight of 50 g and is fixed in a fine-mesh mesh bag at a place 10 cm away from the liquid surface inside the test column.

[0070] Experimental method...

Embodiment 3

[0084] Field experiment (to investigate the influence of temperature factors on the denitrification rate of lake ecological restoration)

[0085] The device for simulating ecological restoration includes heating water tank 1, temperature probe 2, temperature controller 3, booster pump 4, circulating water inlet 5, circulating water outlet 6, culture solution inlet 9, denitrification microbial carrier 10, test column 11, water body Sampling port 12, submerged plant (Littleweed) 13, sediment 15, parafilm 17, culture solution storage tank 18 and bottom plug 19. The distances from the sampling port 12 on the outer surface of the test column 11 to the bottom are 25 cm, 37 cm, and 45 cm, respectively. Since this experiment uses natural light, the light intensity controller 7 and the halogen light source 8 are not set.

[0086] Experimental method steps:

[0087] (1) Sterilization of the culture medium and test column: collect sufficient lake water in situ at Meiliang Bay, Taihu La...

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Abstract

The invention belongs to the technical field of ecological engineering, particularly relating to a multifunctional lake ecology restoration simulation device and use method as well as application. The device comprises a multifunctional ecology restoration simulation test cylinder, a light source control system and a water temperature control system, wherein the light source control system and the water temperature control system are positioned outside the top of the test cylinder; the outer surface of a reaction cylinder is provided with a top cover, a culture liquid inlet and a circulating water outlet; the middle of the reaction cylinder is provided with a water sampling port, and the lower part of the reaction cylinder is provided with the circulating water inlet, a substrate sludge pore water sampling port and a bottom plug; and the test cylinder internally comprises a nitrogen cycle bacteria carrier, submerged plants and settings. By using the method and device, the comprehensive regulation and control as well as optimization of parameters such as settings, submerged plants, denitrification microorganism, water temperature, light and water quality can be carried out, lake and inflowing riverway nutrient salt can be simulated and controlled, and a lake ecology restoration mechanism can be studied. The device disclosed by the invention is simple in structure, is strong in mobility, is diversified in restoration simulation function, is simple in manufacturing, is low in cost and is easy to operate, and can be used indoor and outdoor.

Description

technical field [0001] The invention belongs to the technical field of ecological engineering, and in particular relates to a method and device for multifunctional simulated lake ecological restoration, a use method and an application. Background technique [0002] With the rapid development of my country's economy and the acceleration of urban and rural construction, the discharge of pollutants such as nitrogen, phosphorus, and organic matter in areas along rivers and lakes has increased year by year, and the pollution of lakes and rivers into lakes has become increasingly serious, mainly manifested in a sharp decrease in water area. , lakes are seriously silted, lakes and river ecosystems are damaged, and eutrophication of lakes is intensified. In the lake water ecosystem, the bait put in will accelerate the eutrophication of the lake; the dry and wet deposition of atmospheric pollution in the watershed around the lake will affect the water environment of the lake. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/34
CPCY02W10/10
Inventor 李正魁王易超周莉潘静赟范念文冯露露周涛吴宁梅赵琳吴凯陈祈春王月明
Owner NANJING UNIV
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