FAQs Frequently Asked Questions
In this page, we managed to pull out and conclude all kinds of frequently asked questions from industrial wastewater treatment professionals, environmental engineers, and electrochemistry researchers
FAQ About BDD Electrode
What is BDD electrode?
BDD electrode or boron-doped diamond electrode, is a kind of electrode catalyst material, coating with a silicon or niobium substrate, with a thin layer made of diamond and doping with boron, those substrates provide the needed mechanical strength and electrical conductivity, while the boron doped diamond BDD coating optimal electrochemical properties and alter the conductivity, to enhance electrocatalytic activity and also corrosion resistance making it an non-active catalyst material for different applications.
Why are BDD electrodes used instead of other materials like graphite or platinum,Or mmo?
BDD electrode has some advantages over other electrode materials, as boron doped diamond BDD electrode has wider potential window, comparatively lower background current, and high chemical and mechanical stability, biocompatible, and unmatched electrochemical oxidation ability. These unique properties enable boron doped diamond electrode to more sensitive and reliable in electrochemical analysis, water and wastewater treatment, especially in harsh environments like corrosive or high-temperature, highly toxic, high sanility conditions, and what is more, bdd electrodes are ready to be customized to different forms to be functionable for different implements.
What are some common applications for BDD electrodes?
Boron-doped diamond BDD electrodes are highly versatile and widely used in various implements, especially in the fields of wastewater treatment via degrading and eventually removing persistent organic pollutants (POPs), and other hazardous compounds from water through electrochemical oxidation. BDD electrodes can be adopted for electrochemical synthesis It can be employed for the electrogeneration of ozone for water sanitizations, an alternative way to conventional cholride sanitizations.
What types of wastewater can be treated by BDD electrodes?
BDD electrodes can be adopted to treat a wide range of wastewater, those are considered complex, organic wastewater with high concentration of organic compounds, high COD, and industrial effluents and waste streams with organic contaminants refractory to conventional treatment methods, mainly through direct oxidation with the boron doped diamond BDD anode surfaces, and electrochemical incineration processes realized by oxidizing and mineralizing recaltriant organic compounds such as persistent organic pollutants(POPs), active pharmaceutical ingredients (APIs), and other refractory pollutants via reactive oxidants, mainlyt hydroxyl radicals, hydrogen peroxides, Ozone and etc, via electrochemical oxidation wastewater treatment processes.
How to clean bdd electrodes?
Immerse the electrode piece in an acid not higher than 1mol/L for descaling; If the cathode scales, current density could be adjusted to 5-10mA/cm2, reverse polarity for a short time, and conduct multiple cleaning; It can be brushed with soft brush; Low-frequency ultrasonic cleaning; Select the cleaning method according to the scaling degree.
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