Method for in-situ determination of deep water reservoir sediment denitrification and anaerobic ammonia oxidation rates

An anaerobic ammonia oxidation and sediment technology, applied in environmental monitoring, to the field of water environment, can solve the problems of interference experiment accuracy, sediment and overlying water disturbance, etc., to achieve accurate and reliable test results, reduce interference, and easy to use. Effect

Active Publication Date: 2020-08-04
CHINA THREE GORGES UNIV
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Problems solved by technology

The traditional sediment and overlying water collection is collected using the columnar mud sampler developed by the Institute of Water Environment, China Academy of Water Resources

Method used

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  • Method for in-situ determination of deep water reservoir sediment denitrification and anaerobic ammonia oxidation rates
  • Method for in-situ determination of deep water reservoir sediment denitrification and anaerobic ammonia oxidation rates

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[0033] Example

[0034] A method for in-situ determination of the denitrification and anammox rate of sediments in deep water reservoirs, mainly using a sediment in-situ replacement device, such as figure 1 As shown, the schematic diagram of the separation of the culture tube and the culture tube protective cover is as follows figure 2 Shown. A device for changing the original position of sediments, including a wire rope 1, a heavy hammer starter 2, a roller 3, a heavy hammer 4, a rotating cover 5, a support 6, a counterweight 7, a sinker plate 8, a culture tube protective cover 9, and a culture Tube 10, rotating cover pin 11. The bracket 6, the anti-settling plate 8 and the culture tube protective sleeve 9 are welded together to form the main body of the device. The counterweight 7 can be added to the anti-settling plate 8 according to the water depth to ensure good contact between the device and the sediment; the roller 3 is located on the support 6, one end of the roller 3 ...

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Abstract

The invention discloses a method for in-situ determination of deep water reservoir sediment denitrification and anaerobic ammonia oxidation rates. The method comprises the steps of 1, preparing a sample; 2, carrying out an experimental test by utilizing a sediment in-situ replacement device; and 3, calculating the denitrification rate and the anaerobic ammonia oxidation rate according to the testresult. According to the method, the sediment sample can be replaced in situ from a deep water reservoir, the interference of a traditional sediment collection method is reduced, a method and a basisare provided for more accurately calculating the sediment denitrification and anaerobic ammonia oxidation rates of the reservoir, especially the deep water reservoir, and the method has important significance for developing nitrogen removal research of the reservoir, especially the deep water reservoir.

Description

technical field [0001] The invention belongs to the technical field of environmental monitoring, relates to the field of water environment, in particular to a method for in situ measuring the denitrification and anaerobic ammonium oxidation rates of deep water reservoir sediments. Background technique [0002] Nitrogen loss refers to the process in which organic or inorganic nitrogen in the watershed is finally converted into gas and released into the air, because only nitrogen (N 2 ) is an inert and harmless gas, so the denitrification process that generates nitrogen is considered to be the most effective nitrogen load reduction process. Excessive concentration of dissolved nitrogen in the ecosystem will break the balance of the ecosystem and cause a series of ecological and environmental problems. How to take effective measures to reduce the nitrogen pollution load of rivers has become a common issue facing the world. [0003] It is currently recognized that dissolved nit...

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Application Information

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IPC IPC(8): G01N33/00G01N33/18
CPCG01N33/00G01N33/188
Inventor 王从锋赵萍杨正健郭小娟刘德富马骏
Owner CHINA THREE GORGES UNIV
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