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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 and Hydropower Research, but it is easy to cause disturbance to the sediment and overlying water during the collection process, which interferes with the accuracy of the experiment

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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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Embodiment

[0034] An in-situ method for determining the denitrification and anammox rate of deep-water reservoir sediments, mainly using a sediment in-situ replacement device, such as figure 1 As shown, the schematic diagram of the disassembly of the culture tube and the culture tube protective cover is shown in figure 2 shown. A sediment in-situ replacement device, including a steel wire rope 1, a weight starter 2, a roller 3, a weight 4, a rotating cover 5, a bracket 6, a counterweight 7, a sinking plate 8, a culture tube protective cover 9, a culture tube Tube 10, swivel cap latch 11. The bracket 6, the sinking plate 8 and the culture tube protective cover 9 are welded together to form the main body of the device. On the anti-sinking plate 8, a counterweight 7 can be added according to the water depth to ensure that the device is in good contact with the sediment; the roller 3 is located on the support 6, one end of the roller 3 is connected with the weight 4 through a rope, and th...

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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...

Claims

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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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