Ultrasonic intensified self-descaling micro-current electrolysis device for sterilizing and removing alga

Abstract

The invention provides an ultrasonic intensified self-descaling micro-current electrolysis device for sterilizing and removing alga, consisting of a detection system, a control system, an ultrasonic intensified micro-current electrolysis system. A processing mode of the ultrasonic intensified micro-current electrolysis system is controlled according to the conductivity of water detected by the detection system. The intensified ultrasonic of the ultrasonic reflector is utilized to crush the cell wall of the bacteria, to lighten the scaling phenomenon of the cathode and to prompt the oxidation of the oxidized active matters (ClO<->, OH, H2O2, (O)) generated by micro-current electrolysis to the RNA and DNA of bacteria and microorganism cell in the water, thus inactivating or killing the bacteria and the microorganism cell and achieving the effects of sterilizing and removing alga; and a reticulate auxiliary electrode can lead the device to descale by rearrangeable electrolysis without reducing the activity of the anode and can ensure the reliable and stable running of the device. No medicament is added during the whole process; no secondary pollution is generated; the running and maintenance are simple and convenient; the energy consumption is low; and the device is suitable for quick sterilization and alga-removing process of large-flux fresh water systems and seawater systems.

Description

field of invention [0001] The invention is an ultrasonic-strengthened self-decontamination micro-current electrolytic sterilization and algae removal device, especially a water treatment device capable of descaling by reversing poles and killing bacteria and blue-green algae by ultrasonic and micro-current electrolysis, belonging to the technical category of environmental protection. Background technique [0002] Cyanobacteria (cyanobacteria) is also known as blue-green algae or blue-green algae (blue-green algae). Their nucleus structure has no nuclear membrane and nucleolus, belongs to prokaryotic organisms, does not undergo mitosis, and their cell walls are similar to bacteria, composed of peptidoglycan, and Gram staining is negative, so they belong to prokaryotic microorganisms. [0003] Cyanobacteria are single-celled organisms, and the individuals are larger than bacteria, generally 3-15 μm in diameter or width. However, cyanobacteria rarely live as single individuals...

AI Technical Summary

Problems solved by technology

[0012] (1) The speed of killing microorganisms and pathogens must be very fast: otherwise, in a large area of ​​water, when the treated water enters the body water again, if a biocide is added, it will be diluted quickly and the bactericidal ability will be weakened. Coupled with a large number of unkilled microorganisms, it will soon reproduce on a large scale, and the treatment effect is very poor; if it is used in ballast water treatment, the ballast water is pumped and discharged through the device for only a short time, if the microorganisms are killed and Pathogens are not fast enough, and the treated water cannot meet the standards;

[0013] (2) High killing efficiency: The discharge ballast water performance standard specified in Article D-2 of the 2004 International Convention on the Control and Management of Ships' Ballast Water and Sediments must meet:

[0021] (4) Large processing capacity: For the eutrophication of large-area water bodies such as lakes, the processing capacity of sterilization and algae removal is one of the key factors; for the treatment of ship ballast water, ships cannot stay for a long time, and a single machine processing capacity is generally required at 300M 3 / hr above

[0024] Chinese patent application number 02100332 discloses an oxidized bromine-containing composite biocide—broclocarb—used in industrial water fields, public places, and sewage reuse fields; Formed aldehyde compound high-efficiency biocide; Chinese Patent Application No. 200510025395 discloses a biocide containing isothiazolinone and dodecyldimethylbenzyl ammonium chloride for sewage treatment; WIPO (World Intellectual Property Organization) published international patent WO03002406 uses copper anode electrolysis to produce copper ions for sterilization; this type of biocide has high biological toxicity and long residual time, and can still be applied to the sterilization treatment in circulating sewage or cooling water systems in China; it is not suitable for Treatment of large-area eutrophic water bodies such as lakes and ballast water that needs to be discharged

Therefore, when the estuary water body is between 50-500μS / cm, it is at least 60 times different from the ocean water body. It can be seen from formula (1) that the voltage U applied to the water body between the anode and the cathode 2 , there is a difference of at least 60 times, it is difficult to ensure that the electrolysis system can meet the requirements for ballast water treatment of ships operating in different waters within the safe voltage range

[0052] (2) In the fresh water system, there is fouling on the cathode, which causes a sharp increase in the resistance between the cathode and the water body, which affects the electrolysis efficiency. If it is necessary to ensure a constant current, the overall electrolysis voltage rises sharply, and the system cannot operate normally.

However, if this electrode is used as a cathode, since Pt, Ir, Ru, Rh, Pd, and Ti are all strong hydrogen-absorbing materials, the H produced by the cathode reaction 2 Adsorbed by Pt, Ir, Ru, Rh, Pd and Ti, resulting in volume expansion causing peeling between the coating and the core material, causing the coating and active materials to fall off and loss of catalytic activity

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