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Electrochemical Oxidation Products: How It Works, and MEET the Full Product Line
Electrode material determines what happens inside the electrochemical reactor/electrolytic cell; trial and bench modules narrow the design on a small sample; pilot modules confirm it at real flow. This page covers the mechanism, how EO combines with other treatment steps, and the full product line built around it.
Written by and reviewed for technical accuracy by Janeczka Kowalski, Process / Electrochemical Engineering. Figures and ranges on this page are engineering starting points — verify against your own pilot or vendor data before finalizing a design.
How Electro Oxidation Works
Two distinct mechanisms drive treatment, and most real streams see both happening at once.
Direct oxidation happens when pollutants adsorb onto the anode’s surface and lose electrons directly to the electrode. This transforms them into less complex, more biodegradable substances — some organic pollutants mineralize fully into CO₂ and H₂O.
Indirect (mediated) oxidation relies on highly reactive species generated around the anode — principally hydroxyl radicals (•OH), formed from oxidized water molecules. Hydroxyl radicals attack organic pollutants non-selectively and mineralize them in solution, with a higher oxidation potential than ozone or hydrogen peroxide and shorter contact time needed to do it. Ozone (O₃) and hydrogen peroxide (H₂O₂) form simultaneously and contribute additional oxidation. In chloride-containing streams — refinery wastewater, for instance — chlorine gas (Cl₂) and hypochlorite (HOCl) generate at the anode as strong oxidants in their own right.
For a deeper look at direct and indirect mechanisms in the context of a specific electrode material, see the BDD electrode page.
Treatment Combinations
Electro-oxidation rarely runs alone in a full treatment train. Here’s how it typically pairs with other steps, and what each combination is doing.
EO + Biological Treatment
EO degrades persistent organic pollutants into smaller, more biodegradable intermediates, improving the B/C ratio so a downstream biological step has something to work with.
Electrocoagulation + EO
EC removes suspended solids and some dissolved organics before EO, the same role screening, filtration, sedimentation, or DAF would play — improving the quality of influent of the EO.
Membrane Filtration + EO
EO cuts fouling in MF/UF/NF/RO systems by removing organic pollutants upstream, while membranes can concentrate pollutants for EO treatment or serve a final polishing role.
Adsorption + EO
Adsorption after EO captures the final traces of organic pollutants. Many pilot-scale EO modular units now include an integrated adsorption stage as standard, rather than requiring a separate downstream process.
EO + Ozonation / Peroxone
Combining EO with ozone-based advanced oxidation boosts generation of reactive species, especially reactive oxygen species, improving removal efficiency against recalcitrant organic pollutants.
How These Fit Together
The diagram below maps each combination to the specific role it plays around the EO stage — upstream conditioning, downstream polishing, or reactive-species enhancement.
Applications: Where EO Products Fit
Application ranges of electro oxidation an a wide range of industrial sectors, most of them defined by wastewater that conventional treatment struggles to handle:
These wastewaters are known complex organic streams that pose a major threat to ecosystems and human health, and a persistent challenge for wastewater management facilities generally. Conventional treatment approaches at existing facilities are often limited in their ability to eliminate persistent organic pollutants, let alone meet treatment objectives or keep pace with current and future regulation.
Electro-oxidation’s oxidation and treatment efficiency has proven effective for the complete degradation of these persistent organic compounds where conventional approaches fall short.
Pollutant Destruction Capability
The decentralized and modular electro-oxidation treatment (DMEOT) model applies electrochemical oxidation on-site for industrial wastewater, targeting cost-effective, efficient destruction of persistent organic contaminants using high-efficiency BDD electrodes as the anode material in the electrochemical reactor:
PAHs & Industrial Chemicals
Polycyclic aromatic hydrocarbons (PAHs), solvents, phenols, dyes, polychlorinated biphenyls (PCBs), and hexachlorobenzene
PPCPs & Pesticides
Pharmaceuticals and personal care products (PPCPs), and organochlorine pesticides (OCPs)
Dioxins & Furans
Highly toxic dioxins and furans, among the most persistent and hazardous organic contaminant classes
Electro Oxidation Wastewater Treatment Product Collection
We’re dedicated to designing and developing highly efficient advanced electrochemical oxidation wastewater treatment products to revolutionize the way industries address industrial wastewater treatment challenges, with constant component design and enhancement, treatability testing, close projects monitoring.
With deep understanding of water treatment and advanced electro oxidation processes technology, we developed electro oxidation wastewater treatment products range from electrode materials such as MMO electrodes, boron doped diamond electrode, trial scale EO products such as tube type EO trial module and EO reactor/electrolytic cells, bench scale portable electro-oxidation wastewater treatment testing equipment, up to pilot scale electro-oxidation wastewater treatment module unit, advanced electrode oxidation modular electrolyzers, EO wastewater treatment system, customized electro oxidation wastewater treatment solution to efficient and environmentally responsible practices in industrial wastewater treatment.
Remove organic pollutants with our versatile range of electro oxidation wastewater treatment products, Evoaeo covers trial scale for treatability test, portable electro oxidation testing kits, and pilot scale electro oxidation wastewater treatment systems.
Skid-mounted electrochemical oxidation, electrocoagulation, and treatability-trial equipment for industrial wastewater — filter by market, product family, or treatment objective below.
Narrow Your Search
Product Family
- Electrode Materials
- EO Trial Modules
- EO Bench Modules
- EO Pilot Modules
- Electrocoagulation EC Unit (Under Development Now)
- Petrochemical
- Pharmaceutical
- Pesticide / Agrochemical
- Electroplating
- Textile Dyeing
- Landfill Leachate
- Chemical
Treatment Objective
Engineering, Procurement, and Construction (EPC)
Electrode material
MMO Electrode Plate
Titanium substrate with a mixed iridium/ruthenium oxide coating, sized for direct and indirect oxidation in moderate-to-high chloride streams. Typical service life runs 3 to 5 years depending on current density and fouling rate.
Electrode material
BDD Electrode Plates
Diamond-coated niobium or silicon substrate built for direct hydroxyl radical oxidation where a chloride-driven pathway isn’t available or isn’t wanted. Higher unit cost, longer service life under low-fouling conditions.
Electrode material
MMO Electrode Assembly
Anode system consisting of a titanium substrate coated with a thin layer of catalytic ruthenium, iridium oxides, combined with insulated joints, and structural mounts for electro oxidation wastewater treatment.
TRIAL MODULE
EO Trial Module-Tube
Configurable electrochemical reactor hardware for controlled electron-transfer electrochemical oxidation process to testing treatability of your wastewater.
TRIAL MODULE
EO Trial Module-Standard
The electro oxidation trial module is sized for lab-to-pilot testing of electrochemical advanced oxidation (EAOP) on real wastewater, before a full design gets committed to paper.
Trial MODULE
EO Trial Module-Beaker
Parallel centrifugal circulation pumps feeding independent electrode loops for multi-module arrays. Precisely engineered and set in a beaker, ready to roll.
Bench module
EO Bench Module
The very first bench-scale electrochemical oxidation wastewater treatment unit available in the market with pre-treatment and multistage EO installed.
Product
Modular Electrode Cartridge
Corrosion-resistant plate-and-frame electrode stack, sized to throughput, field-swappable.
Product
Multi-Pump Circulation Skid
Parallel centrifugal circulation pumps feeding independent electrode loops for multi-module arrays.
Technology Portfolio
Extended Process Technologies Across Our Product Range
EOX
Constant-current electrochemical oxidation for recalcitrant COD, phenolics, and APIs.
EC Pretreat™
Electrocoagulation stage for colloids, suspended organics, and partial heavy-metal removal.
Trial-Skid™
Three-stage bench treatability unit for pre-scoping any process route before full-scale design.
HydroxiCell™
In-situ hydroxyl-radical generation module, retrofit-compatible with existing biological trains.
SaltRecover™
Post-oxidation evaporative concentration for high-salt streams targeting salt-fraction recovery.
FlowGuard™
Dry-run protection and startup/shutdown interlock logic across the full electrode-module range.
How the Electro Oxidation Product Line Fits Together
Benchtop trial cells and treatability bench modules test your actual water chemistry, using MMO, BDD, or graphite electrodes depending on what the stream calls for.
Standard or high-chloride bench modules confirm removal rate, energy consumption, and byproduct formation at larger sample volumes before committing to pilot.
Containerized or trailer-based pilot modules run at production-representative flow to confirm hydraulics, fouling behavior, and long-run electrode performance.
The electrode material and reactor configuration selected during pilot carry directly into full-scale system design and cost estimate.
Choosing Between Electro Oxidation Product Lines, Which Electro Oxidation System Fits Me?
MMO plates work well where chloride is available to drive indirect oxidation. BDD plates make more sense in low-chloride streams, or where chlorate and perchlorate formation need to be avoided entirely.
A benchtop trial cell is a fast first look at a small sample. A bench module runs the full removal curve and byproduct screen used in a formal treatability report.
Once bench results confirm feasibility, a pilot module validates that result at real flow, real hydraulics, and fouling conditions bench testing can’t reproduce.
Most trial, bench, and pilot modules accept multiple electrode plate formats, so a material comparison can carry through from bench to pilot without changing equipment.
Professional Team
Wastewater treatment industry specific expertise and capabilities.
Innovation On The Go
Wastewater treatment quality control and instrument innovation.
Research & Development
Electrode materials, electrochemical reactor, treatment train.
Request Electro oxidation Product Guidance
Not sure where to start in the product line? Not sure which bench configuration fits, or ready to schedule a screening run? Tell us about your wastewater and someone from engineering team will follow up. Not sure where to start in the product line? Tell us your stream chemistry and where you are in testing, and we’ll point you to the right module or electrode material. Get a quote, or request a consultation, do not forget to fetch water profile analysis, it’s free of charge!