Why BDD
About BDD Electrolysis
BDD electrolysis, an electrochemical reaction that employs a BDD electrode as the anode, possesses considerable importance. To fully grasp the intricacies of BDD electrolysis technology, it is necessary to thoroughly understand the complexities associated with BDD electrodes.
When diamond is doped with boron, its physicochemical properties undergo significant changes. Research indicates that boron doping enhances the electrical conductivity of diamond and reduces the resistivity of diamond film to a range of 0.01~100 Ω-cm. This facilitates swift electron migration during electrochemical reactions. Boron-doped diamond (BDD) exhibits a wide electrochemical window, high electrooxidation capability, low background current, and excellent chemical stability, making it an ideal electrode material.
Boromond utilizes its proprietary chemical vapor deposition (CVD) equipment to coat substrates with boron-doped diamond (BDD) films. This process involves the use of boron and carbon gases as the primary raw materials, which are subjected to high-temperature dissociation within a low-pressure furnace. The resulting carbon and boron atoms are then deposited onto the substrate surface, enabling efficient mass production of BDD coatings.
Advanced Oxidation Processes for Wastewater Treatment
After We Understand BDD Electrode, The Following Part Is To Introduce Electrochemical Advanced Oxidation Process Technology.
Introduced in 1970, electrochemical oxidation technology has gained significant attention in wastewater treatment and disinfection due to its environmentally friendly and efficient characteristics. When coupled with flocculation, biochemistry, membrane treatment, and other technologies, it offers remarkable advantages and promising prospects for the deep purification and treatment of highly concentrated refractory wastewater.
Utilizing BDD as the electrode anode material, electrochemical oxidation technology can effectively degrade organic compounds through direct and indirect oxidation processes. Direct oxidation involves the removal of organic matter by adsorbing organic pollutants onto the anode surface through electron transfer. This process can further be categorized into electrochemical conversion and electrochemical combustion based on the degree of oxidation. Indirect oxidation, on the other hand, involves the removal of organic pollutants by generating active intermediates or high oxidizing metal oxides on the anode surface.
Boromond leverages electrode modules based on BDD electrode material as the core, enabling the continuous degradation of organic pollutants under normal temperature and pressure conditions. This process eliminates the need for chemical additives, relying solely on electricity consumption with minimal material usage. The simplicity and efficiency of this approach offer significant advantages. Boromond has developed test modules, trial modules, and integrated wastewater treatment modules to scale up electrochemical oxidation wastewater treatment to an industrial level. These sustainable and highly efficient electrochemical treatment equipment solutions contribute to effective and environmentally-friendly wastewater management.
OH radicals are recognized as one of the most potent oxidants in existence.
Water, being a polar molecule, exhibits a positive and negative end. During the process of water electrolysis, the positively charged hydrogen atoms are attracted to the negatively charged electrode (cathode), while the negatively charged oxygen atom is drawn towards the positively charged electrode (anode). As a result, the water molecules dissociate into their respective ions: hydrogen ions (H+) at the cathode and hydroxide ions (OH-) at the anode.
The water electrolysis process can be summarized by the following half-reactions:
At the cathode: 2H+ + 2e- -> H2 (hydrogen gas)
At the anode: O2 + 2H2O + 4e- -> 4OH- (oxygen gas)
Why choose BDD electrode
◼ The electrochemical oxidation reaction of organic matter occurs at the interface between the electrode and solution. The choice of electrode anode material directly impacts the efficiency and selectivity of the organic mineralization process. Consequently, the development of anode materials that can economically and efficiently degrade organic wastewater has been a significant area of research in the field of electrochemical oxidation and wastewater treatment.
◼The chart below clearly demonstrates that the boron-doped diamond/BDD electrode possesses an exceptionally high oxygen evolution potential and the widest electrochemical window. These characteristics make bdd electrode an ideal choice as an anode material for the effective electrochemical oxidation treatment of refractory biodegradable organic wastewater.
Under identical conditions, BDD electrode exhibits significantly superior efficiency and lower energy consumption in the degradation of organic matter compared to conventional anode materials.
Extensive studies have demonstrated the remarkable capability of BDD electrodes to effectively degrade various types of organic pollutants found in wastewater.
Data-Driven Excellence: With a repository of engineering insights, we champion wastewater treatment across diverse industries such as pharmaceutical/pesticide chemical industry, petrochemical, printing and dyeing, paper making, leather, food processing, landfill leachate, and other sectors dealing with organic wastewater.
BDD Electrode Range of Applications
According to the degradation and analysis of different types of water quality, it is found that the following types of wastewater can be pretreated in the early stage to reduce toxicity and improve biodegradability or degraded directly to the standard by further treatment in the later stage：
Applicable to all kinds of wastewater with strong acid pH=0 or strong base pH=14 (except fluoride ion)
The higher the salt content, the higher the conductivity and the lower the energy consumption
High concentration + high salinity wastewater (concentrate after membrane, concentrate after MVR)
Toxic wastewater containing CN-, NaN3, organophosphorus, organic sulfur, etc
All types of water defined as hazardous waste
The national discharge standard/end water production improvement is not stable for final stabilization and standard treatment.
Based on its unique advantages, BDD electrode can be used as a key link in the whole environmental process, oxidation decomposition of refractory organic matter in wastewater, combined with evaporation, membrane filtration, biochemistry, and other electrochemical technology, Finally, stable, efficient, cost-effective way to achieve long-term stable emission standard effect.
BDD Electrode Products
An ideal anode material for electrochemical oxidation treatment of difficult biodegradable organic wastewater.
Character of low resistance, good thermal diffusivity, higer Oxidating temperature and excellent character of semiconductor
An ideal anode material for electrochemical oxidation treatment of difficult biodegradable organic wastewater
BDD engineer project equipment designed based on the water sample and the site environment.
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