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Application of nitric oxide gas to control over cyanobacterial bloom

A nitric oxide, cyanobacterial bloom technology, applied in sterilization/microdynamic water/sewage treatment, polluted waterway/lake/pond/river treatment, etc., can solve problems such as cell death

Active Publication Date: 2016-04-20
INST OF AQUATIC LIFE ACAD SINICA
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Under normal circumstances, algae can produce NO to transmit information and regulate their own growth during growth, but when algae are under unsuitable environmental pressure, algal cells will produce excessive NO and induce the activation of specific enzymes that can control algal cell death Caspase-3-like enzyme activity, which triggers cell death

Method used

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  • Application of nitric oxide gas to control over cyanobacterial bloom

Examples

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Embodiment 1

[0025] The application of nitric oxide gas in controlling cyanobacteria bloom, its steps are:

[0026] A. Using metallic copper (50% or 60% or 70% or 80% or 90% or 100%) and dilute nitric acid (10% or 20% or 30% or 40%) to prepare nitric oxide (Liu Zhengxian editor-in-chief "Secondary Chemistry Experimental Encyclopedia" Shanghai Education Press, 1996 edition); or directly purchase nitric oxide gas (30% or 40% or 50% or 60% or 70% or 80% or 90% or 100%);

[0027] B. The actual concentration of nitric oxide gas is 10 -7 -10 -6 m 3 / s (can be realized in this range) through tap water (0.5L or 1L or 5L) solution for 28 or 29 or 30 or 31 or 32 minutes to prepare a saturated solution of nitric oxide, the concentration of this nitric oxide solution is 1.4 mM;

[0028] C. Evenly add the prepared nitric oxide saturated solution to the concentrated area where the blue-green algae bloom occurs at a volume ratio of 0.1%, 0.5%, or 1%.

[0029] D. Dosing a saturated solution of nitric...

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Abstract

The invention discloses application of nitric oxide gas to control over cyanobacterial bloom. The application comprises the following steps: 1, preparing nitric oxide by means of a metallic copper (the copper content and dilute nitric acid) reaction; or directly buying the nitric oxide gas; 2, introducing the nitric oxide gas applied in step 1 into 0.5-5 L of tap water with the actual concentration being 10<-7>-10<-6>m<3> / s, wherein the process lasts for 28-32 minutes, and preparing a nitric oxide saturated solution; 3, uniformly adding the prepared nitric oxide saturated solution into a concentrated bloom-forming cyanobacteria bursting area with the volume ratio being 0.5-1%. The nitric oxide gas has the advantage of being high in inhibition rate, the inhibition rate of a 14-micron nitric oxide solution against algae in a moderate-severe eutrophic water body (the algal density is approximately 1*10<6> cells / L) is as high as 89%, and even if all nitric oxide is converted into a nitrogen source in the water body, the nitric oxide gas is not enough to cause secondary eutrophication.

Description

technical field [0001] The invention belongs to the field of water body pollution control, and more specifically relates to the use of nitric oxide gas in controlling cyanobacteria blooms. Background technique [0002] With the rapid development of my country's social economy and urbanization, water pollution is becoming more and more serious. A large amount of domestic sewage, industrial wastewater, and farmland irrigation sewage rich in nutrients are discharged into rivers and lakes. The resulting eutrophication of the water body leads to a large number of algae. The problem of reproduction and algal blooms not only causes economic losses to the aquaculture industry, but also destroys the ecological landscape of the water area, leading to an imbalance in the ecosystem. In addition, the microcystins released by Microcystis in the cyanobacteria may be related to the increase in the incidence of liver cancer in the population , seriously endangering human health. [0003] Exis...

Claims

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Application Information

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IPC IPC(8): C02F1/50
CPCC02F1/50C02F2103/007
Inventor 吴振斌程龙刘碧云徐栋张义武俊梅贺锋周巧红何燕张甬元
Owner INST OF AQUATIC LIFE ACAD SINICA
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