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Biological reactivation and inhibition method for ship ballast water after ultraviolet disinfection treatment

A technology for ship ballast water and ultraviolet disinfection, which is applied in water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. It can solve the problems of migration of alien species, reduce economic risks, and reduce remote migration. Opportunity, the effect of biofouling growth inhibition

Inactive Publication Date: 2014-10-01
SHANGHAI CYECO ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The trend of bioremediation has brought potential migration of alien species to the UV ballast water treatment process, especially under low-level UV disinfection dosage conditions, which has been questioned by some users
At present, there is no report on the inhibitory measures of bioremediation

Method used

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  • Biological reactivation and inhibition method for ship ballast water after ultraviolet disinfection treatment

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Effect test

Embodiment 1

[0019] The concrete steps of a kind of method for the biological reactivation suppression after ultraviolet disinfection treatment of ship's ballast water are as follows:

[0020] Step 1): Use such as figure 1 As shown in a ship ballast water treatment system with biological revival inhibition function, the ballast water enters the filter unit 1 from the ballast water inlet a to be filtered;

[0021] Step 2): the filtered ballast water enters the ultraviolet disinfection unit 2 through the pipeline 3 for disinfection;

[0022] Step 3) The sterilized ballast water passes through the electrolysis unit 4 online through the pipeline, and is acted by the low-voltage direct current applied by the electrolysis power supply. In the seawater medium, the solid metal copper electrode in the electrolysis unit is used as the anode, and the seawater metal pipeline is used as the cathode. The metal anode electrolysis releases active metal copper (or cuprous) ions, which are distributed in t...

Embodiment 2

[0025] The concrete steps of a kind of method for the biological reactivation suppression after ultraviolet disinfection treatment of ship's ballast water are as follows:

[0026] Step 1): Use such as figure 1 As shown in a ship ballast water treatment system with biological revival inhibition function, the ballast water enters the filter unit 1 from the ballast water inlet a to be filtered;

[0027] Step 2): the filtered ballast water enters the ultraviolet disinfection unit 2 through the pipeline 3 for disinfection;

[0028] Step 3) The sterilized ballast water passes through the electrolysis unit 4 online through the pipeline, and is acted by the low-voltage direct current applied by the electrolysis power supply. In the seawater medium, the solid metal silver motor in the electrolysis unit is used as the anode, and the seawater metal pipeline is used as the cathode. Metal anode electrolysis releases active metal silver ions, which are distributed in the seawater environme...

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Abstract

The invention discloses a biological reactivation and inhibition method for ship ballast water after ultraviolet disinfection treatment. The biological reactivation and inhibition method is characterized in that the ship ballast water is electrolyzed through metal ions, so that electrolyte which is of a biological reactivation and inhibition action is dispersed in a ballast water medium which is treated through filtration and the ultraviolet disinfection treatment, and enters into a ship ballast tank as the ballast water medium to stay in the ship ballast tank; the continuous toxic effect of a trace active metal ion existing in the electrolyte to organism tissues is utilized to achieve that bioremediation is effectively inhibited. The biological reaction and inhibition method is simple in process, easy to control and adjust and extremely low in protective concentration; the biological reactivation and inhibition method is used as a process supplement for an ultraviolet method ballast water system and the constituent is stayed in the ship ballast tank, so that the continuous biological reactivation and inhibition action is achieved, and over-proof risks, generated possibly as the ballast water system is delayed to test by the ballast water convention contracting states, and economic risks due to unnecessary ship detention are lowered; moreover, marine organism apposition growth pollution can be avoided.

Description

technical field [0001] The invention relates to a method for inhibiting biological revival after ultraviolet disinfection treatment of ship's ballast water. Background technique [0002] As a typical process route for ship ballast water treatment, ultraviolet disinfection technology is purely physical, has no toxic and side effects, and has obvious treatment effects. It is suitable for both seawater and freshwater environments, has no secondary pollution, is safe and reliable, and is easy to operate. General attention in the market. [0003] Ultraviolet light can damage the DNA structure sequence of organisms, inhibit DNA replication, and play a role in biological inactivation. This is the basic principle of ultraviolet disinfection. Literature and experiments have shown that there is a tendency of bioremediation and resurrection of aquatic organisms after ultraviolet inactivation and disinfection treatment. [0004] Biological restoration includes light restoration and da...

Claims

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Application Information

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IPC IPC(8): C02F1/461
Inventor 计明曾晓燕葛跃生董倩倩
Owner SHANGHAI CYECO ENVIRONMENTAL TECH
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