Products Description
Titanium electrode for water treatment is an electrode material widely used in water treatment process, with many unique advantages and wide application fields. The following is a detailed introduction to titanium electrode for water treatment:
1. Main features
Corrosion resistance: Titanium material can resist various acid and alkali corrosion and oxidation, so it can be used in water treatment electrolysis environment for a long time, and its life is usually longer than nickel and copper electrodes.
Non-toxic and harmless: Titanium is a metal element, which will not produce secondary pollution during the electrolysis process and is more environmentally friendly.
Low overpotential: Titanium has a low overpotential, which means that during the electrolysis process, no serious chemical corrosion will occur between the titanium electrode and the hard cathode, thereby extending the service life of the electrode.
High fastening strength: The titanium electrode is connected to the conductive part by mechanical fastening, with high fastening strength and is not easy to loosen and fall off.
High conductivity: When the titanium electrode is connected to a stainless steel or carbon conductive rod, the conductivity is high, which is conducive to improving the electrolysis efficiency.
High price: Since titanium is a precious metal, the processing technology is complicated, and the cost of conductive parts is also high, the price of titanium electrodes is far higher than that of ordinary metal electrodes.
Difficulty in recycling: After the service life of titanium electrodes ends, it is difficult to recycle them, which may result in a certain amount of resource waste.
Products Application Area and Life Span
Application fields
The application fields of titanium electrodes for water treatment are very wide, including but not limited to the following aspects:
(1) Titanium anodes for water heaters: such as solar water heaters, household water heaters, etc.
(2) Titanium electrodes for water electrolysis: such as titanium electrodes for electrolytic ion water machines (functional water machines).
(3) Hospital sewage treatment: used for electrolytic treatment of hospital sewage.
(4) Electroplating factory wastewater treatment: treatment of cyanide-containing wastewater generated by electroplating factories.
(5) Domestic water disinfection: such as disinfection of high-rise residential water tanks, swimming pool water and food utensils.
(6) Power plant circulating water treatment: used for electrolytic treatment of power plant circulating water.
(7) Printing and dyeing wastewater treatment: such as electrolytic treatment of printing and dyeing wastewater in wool spinning mills.
(8) Industrial water treatment: such as electrolytic treatment of ammonia nitrogen wastewater.
(9) Seawater desalination: titanium electrodes used in desalination of seawater by electrodialysis.
(10) Electrolytic production of acid and alkali ion water: electrode materials used for electrolytic production of acid and alkali ion water.
(11) Electrocatalytic oxidation wastewater treatment: such as electrocatalytic oxidation treatment of coking wastewater.
In different application scenarios, the life of titanium electrodes will be different
Water treatment electrodes
Long life: For titanium electrodes designed specifically for water treatment, their life can be very long, reportedly up to 15 years. This is mainly due to their excellent corrosion resistance and stability, as well as optimized design for water treatment environments.
Influencing factors: However, the actual life is also affected by many factors such as the impurity content in the water quality, electrolysis conditions, and operation and maintenance levels..
Electrodes for non-water treatment purposes
Short life: For titanium electrodes that are not specifically designed for water treatment (such as traditional chlorine-producing electrodes, cathodic protection electrodes, etc.), their life may be relatively short. These electrodes may face more severe electrolytic environments, such as highly corrosive media, high temperature and high pressure conditions, which will shorten their life.
Decrease life: Ordinary titanium electrodes (non-water treatment purposes) have the problem of "decrease life", that is, the electrodes are always in a state of corrosion and have no fixed life limit. As the use time increases, the electrode performance will gradually decline until it cannot meet the use requirements.
Specific life value
Although it is impossible to give a uniform life value for titanium electrodes, its approximate range can be understood based on some specific cases or reference standards:
Titanium electrodes for certain water treatment purposes: It is reported that their life can reach 5000-15000 hours, or even longer. This depends on the specific model, quality and use conditions of the electrode.
Ruthenium-iridium-titanium anode: In some application areas (such as sodium hypochlorite generators, nuclear power cooling water anti-pollution treatment, etc.), its anode life can reach 500-1500A/m², which is greater than 2 years. This shows that under certain conditions, titanium electrodes can maintain a longer service life.
Factors affecting life span
Water quality condition
The type and content of impurities in water will directly affect the corrosion rate and service life of titanium electrodes.
Electrolytic parameter
The settings of parameters such as electrolysis voltage and current density will affect the electrolysis efficiency and stability of the electrode, and thus affect its life.
Electrode material quality
The purity, density, coating quality, etc. of the electrode material will affect its corrosion resistance and service life.
Operation and maintenance level
Regularly checking the scaling and loss of the electrode surface and timely cleaning and maintenance can extend the service life of the electrode.
The life of titanium electrodes has direct and indirect effects on water quality.
1. Direct effects
Electrolysis efficiency:
As the use time of titanium electrodes increases, scaling, oxidation or coating shedding may occur on their surfaces, which will reduce the electrolysis efficiency of the electrodes. The reduction in electrolysis efficiency means that under the same electrolysis conditions, the amount of effective disinfectants (such as hypochlorous acid) produced will decrease, thereby affecting the disinfection effect of water quality.
Disinfection effect:
Disinfection substances such as hypochlorous acid produced by electrolysis are the key to killing harmful microorganisms such as bacteria and viruses in water. When the life of titanium electrodes is shortened and the electrolysis efficiency is reduced, the amount of disinfectants generated is reduced, which may cause the microbial content in water to exceed the standard and affect the safety of water quality.
2. Indirect effects
Maintenance cost:
Regular replacement and maintenance of titanium electrodes require a certain amount of cost. When the electrode life is short, these costs will increase accordingly. If water treatment facilities frequently replace titanium electrodes, it will not only increase operating costs, but may also affect the continuous and stable operation of the facilities.
Equipment performance:
As one of the key components of water treatment equipment, the performance of titanium electrodes directly affects the operation effect of the entire equipment. When the electrode life is shortened, the overall performance of the equipment may decline, thus affecting the effect and stability of water treatment.
Environmental risks:
If the titanium electrode is severely damaged or fails during use, it may cause harmful substances (such as chlorine, etc.) generated during the electrolysis process to leak into the environment, causing environmental pollution and ecological risks. This will not only affect water quality safety, but may also pose a threat to the surrounding environment and residents' health.
Products Process
The production process of water-treated titanium electrodes usually includes steps such as material preparation, electrode preparation and electrode assembly. First of all, the titanium material is cut, ground and cleaned to ensure the purity and smoothness of its surface. Then, by electrolytic deposition, spraying or welding, the treated titanium sheet is prepared into an electrode with a certain electrode area and structure. Finally, the electrode assembly, including multiple electrodes stacked assembly, cable connection and sealing, to improve the efficiency and stability of the electrode.
Products Precautions for use
How to maintain the electrolytic performance of titanium electrodes?
1. Protect the electrode surface coating
Avoid scratches:
During installation, handling and use, be careful to avoid scratches on the coating surface. Scratches can cause local failure of the coating, which in turn accelerates corrosion and affects the overall performance of the electrode. Use clean gloves for operation and try to operate without the coating contacting foreign objects.
Regular inspection:
Regularly check the status of the electrode surface coating to promptly detect and deal with coating shedding or damage.
Controlled electrolytic condition
Electrolyte stability
Ensure that the electrolyte remains stable and avoids corrosive substances such as cyanide ions and fluoride ions. These impurities will seriously corrode the titanium matrix and affect the life of the electrode.
A filter should be added before the electrolyte enters the electrolytic cell to remove metal particles larger than 0.1mm to prevent short circuits between the cathode and cathode.
Temperature control
The working temperature of the electrolyte should be controlled within a reasonable range, the ideal temperature is 25-40°C. Too high a temperature will accelerate the corrosion of the electrode and the volatilization of the electrolyte, reducing the electrolysis efficiency.
Current density
The current density during operation should be controlled within a reasonable range. It is generally recommended not to exceed 2000A/m² (some say that 1000A/m² is more appropriate, but the specific range should be determined based on the application environment and electrode performance). Excessive current density will lead to intense reactions on the electrode surface, accelerate coating consumption and shedding, and shorten the life of the electrode.
Anode-Cathode Distance
Reasonably adjust the distance between the cathode and anode, generally recommended to be between 5-25mm. Too large a distance will increase the voltage drop, while too small a distance will easily lead to plate short circuit or cathode scale accumulation.
2.Avoid improper operation
Avoid using the conductor:
Once the precious metal oxide coating is used as a cathode, it will undergo a reduction reaction and turn into a metal element, causing the coating to fail to bond with the titanium substrate and then fall off. Therefore, titanium electrodes should be avoided as cathodes.
Proper power on and off:
When loading the electrolytic cell with current, it should be done step by step, not all at once. The same applies when shutting down to avoid sudden changes in current that may impact the electrode.
Our Products
Products cleaning and maintenance
Regular cleaning and maintenance
Remove attachments
The cathode deposits should not be too thick, so as to avoid the short circuit and breakdown of the cathode and cathode due to the small inter-electrode distance or the formation of sharp metal. The tank needs to be cleaned regularly.
01
Cleaning electrode
When pickling or washing the electrode plate surface, pay attention to protecting the surface and do not use sharp objects to wash it. You can use dilute hydrochloric acid to clean the plate surface, but do not brush it.
02
Shutdown protection
It is not advisable to soak in the solution in power off mode for a long time during shutdown, and it is best to load a small current of about 5A to protect the plate and prevent the coating from falling off and corrosion
03
Avoid oil stains
Avoid oil stains and keep the electrode surface clean. Avoid oil stains or other attachments to avoid affecting the electrolysis effect and electrode life.
04
Timely repair
If the electrode coating is found to be peeling or damaged, it should be repaired in time to avoid excessive cell voltage, which will affect the electrolysis effect and the overall life of the electrode.
05
Products Pickage
Inner layer: tightly wrapped with moisture-proof paper.
Middle layer: add cushioning materials such as air cushion film or foam.
Outer layer: use the structure of cardboard tube + kraft paper + cardboard tube for packaging to ensure the safety and stability of the product during transportation.
Company: Baoji Dynamic Trading Co., Ltd
Country:China
Add:Baoti road,Jintai,Baoji city,Shaanxi,China
Cel:+86 18391894207(WHATSAPP)
Gmail:alisa@jmyunti.com
Website:www.jm-titanium.com
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