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Degradation method for detecting alga organic phosphorus in lakes and application thereof

A technology of organophosphorus and algae, applied in chemical instruments and methods, measuring devices, and nuclear magnetic resonance analysis, etc., can solve the problems of lack of analysis and research on the availability of dominant algae

Inactive Publication Date: 2017-01-04
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

However, at present, the analysis and research on the availability of dominant algae produced by cyanobacterial blooms in eutrophic lakes is very scarce.

Method used

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  • Degradation method for detecting alga organic phosphorus in lakes and application thereof
  • Degradation method for detecting alga organic phosphorus in lakes and application thereof
  • Degradation method for detecting alga organic phosphorus in lakes and application thereof

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Embodiment 1

[0072] Taihu Lake is a typical eutrophic shallow lake with serious cyanobacterial blooms in recent years. In the late 1980s, the external input of Taihu Lake had not been effectively controlled, and various indicators in the water body were seriously exceeded. Until the late 1990s, the state strictly controlled the key industrial sewage and wastewater around Taihu Lake, and various water quality indicators such as nitrogen and phosphorus in Taihu Lake showed a significant downward trend.

[0073] However, subsequent studies found that a large amount of nutrients can accumulate in the lake's endogenous sources (sediment, algae, etc.), and the endogenous phosphorus load in Taihu Lake itself is already very serious in this state. Endogenous nutrients are repeatedly exchanged with the water body, which promotes the rapid growth of algae, thereby promoting the rapid outbreak of algal blooms. Therefore, under the premise that the exogenous input is controlled, the research on the c...

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Abstract

The invention relates to a degradation method for detecting alga organic phosphorus in lakes and application thereof, belonging to the field of water resource ecological environment treatment. The combination of a liquid 31P-NMR technique and enzyme hydrolysis is utilized to detect alga organic phosphorus in lakes; and different organic phosphorus hydrolases are added to simulate the degradation characteristics and release laws of organic phosphorus in the lake water body and deposit after algae die and become rotten and decomposed, and estimate the contribution of the alga organic phosphorus to the lake endogenous phosphorus, thereby providing important scientific references for searching for the biogeochemical cycle mechanism of the eutrophicated lake endogenous phosphorus.

Description

technical field [0001] The invention relates to a method for detecting the degradation of lake algae organic phosphorus and its application, belonging to the field of water resource ecological environment management. Background technique [0002] One of the important reasons for global water shortage is water pollution, and lake eutrophication is a common phenomenon of water pollution, and frequent outbreaks of cyanobacteria blooms are an important ecological response to lake eutrophication. The increase of nutrients such as phosphorus and nitrogen is an important reason for the outbreak of cyanobacteria. The excessive accumulation of these nutrients in the lake will cause the rapid reproduction of planktonic algae, thus forming the phenomenon of cyanobacteria bloom. [0003] Phosphorus, as one of the main limiting factors of eutrophication in lake ecosystems, has become a key element in current eutrophication research. Phosphorus in lakes is mainly divided into exogenous ...

Claims

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Application Information

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IPC IPC(8): C02F3/34G01N24/08
CPCC02F3/342C02F2101/30G01N24/088
Inventor 冯伟莹吴丰昌朱元荣白英臣张琛宋凡浩
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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