Method and system using advanced oxidation of hydroxyl free radicals to control invasion of marine non-indigenous organisms

An advanced oxidation and biological invasion technology, applied in chemical instruments and methods, invasive species monitoring, oxidized water/sewage treatment, etc. The effect of improving the miscibility efficiency and shortening the action time

Inactive Publication Date: 2017-07-14
XIAMEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems of this method are high energy consumption, high risk, strong corrosion, and deposits are easy to form on the electrode surface
To sum up, at present, the technologies that can be applied to the prevention and control of alien marine organisms mainly exist: the

Method used

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  • Method and system using advanced oxidation of hydroxyl free radicals to control invasion of marine non-indigenous organisms
  • Method and system using advanced oxidation of hydroxyl free radicals to control invasion of marine non-indigenous organisms
  • Method and system using advanced oxidation of hydroxyl free radicals to control invasion of marine non-indigenous organisms

Examples

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Embodiment 1

[0053] Example 1: The combined system treats the incoming ballast water of a 250t / h ship

[0054] According to the method and system of the present invention, a 250t / h ship ballast water treatment combined system device is developed. The actual ship experiment was carried out in Dalian Port during the red tide outbreak. The conditions of the seawater to be treated are as follows: salinity=33.7PSU, pH=8.21, temperature=12.86°C, dissolved organic carbon=2.52mg / L, particulate organic carbon=2.05mg / L, total suspended solids=11.3mg / L. The densities of Heterosigma akashio, Skeletonema costatum and other algae are 52.0×10, respectively 3 ,2.0×10 3 And 1.8×10 3 cells / mL, the concentration of red tide algae cysts is 3.2×10 3 cells / mL. The seawater to be treated is pumped by a mechanical pump. The main pipe water flow rate is 250t / h, and the branch pipe water flow rate into the high-concentration hydroxyl radical preparation unit is 25t / h. The working voltage of the high-concentration hy...

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Abstract

The invention discloses a method and system using advanced oxidation of hydroxyl free radicals to control the invasion of marine non-indigenous organisms, and relates to the fields of plasma chemistry, free radical biology, and marine environment ecology engineering. The system comprises a high concentration hydroxyl free radical generating unit, a liquid-liquid dissolving unit, a residual oxidant neutralizing unit, a central control system, a filter, a Venturi jetting unit, an alga-water quality-TRO detection facility, a ballast water storage chamber, a mechanical pump, a controller, a liquid flow meter, an electromagnetic valve, and a unit discharge valve; each unit is controlled by the central control system through the controller; the high concentration hydroxyl free radical generating unit is provided with a hydroxyl free radical generating facility, an air compressor, and an oxygen enricher; the liquid-liquid dissolving unit is provided with three liquid-liquid dissolving tanks and a residual gas eliminator; and the residual oxidant neutralizing unit is provided with a neutralizing agent storage tank.

Description

Technical field [0001] The invention relates to the fields of plasma chemistry, free radical biology and marine ecological environmental engineering, and in particular to a method and system for preventing and controlling the invasion of marine alien organisms by advanced oxidation of hydroxyl radicals. Background technique [0002] The invasive spread of marine alien organisms is one of the four major threats to the marine ecological environment. The abnormal reproduction of marine alien organisms in the new suitable living environment will cause catastrophic damage to the ecosystem of the coastal waters, and even lead to the extinction of local indigenous species, seriously threatening the safety of the marine ecosystem. The supply and discharge process of ship's ballast water is the most important way to cause marine organisms to spread between geographically isolated water bodies. The ballast water carried by ships around the world is about 10 billion tons every year, and th...

Claims

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Application Information

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IPC IPC(8): C02F1/50C02F1/72C02F9/04C02F103/08
CPCY02A90/40C02F1/50C02F1/001C02F1/66C02F1/72C02F9/00C02F2103/008C02F2103/08
Inventor 白敏冬余忆玄张芝涛郑武
Owner XIAMEN UNIV
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