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Advanced Oxdiation Process (AOP) - ALMA OXI UV

Ultrapure water production and elimination of trace substances using the Advanced Oxidation Process (AOP)

UV oxidation

ALMA OXI UV

The ALMA OXI UV combination process combines wet chemical oxidation with UV treatment. The synergistic effect of UV radiation on the oxidizing agent - usually hydrogen peroxide, ozone or chlorine - leads to the formation of highly reactive radicals. These radicals effectively eliminate even substances that are difficult to break down. This technology has proven particularly effective in the pharmaceutical industry, chemical industry, hospitals, textile industry and other areas with persistent substances.

Technical data

Main applications

Pharmaceutical industry Hospitals
Paint and varnish industry Chemical industry, elimination of poorly degradable substances

Hydraulic power

1 - 1,000 m³/h

Energy requirement for trace substance elimination

< 1 kWh/ m³

Radiation source UV

Customized

Max. TOC concentration

50,000 mg/l

Your experts for AOP systems - directly accessible

Dominik Hoffmann

Head of Project Development

dominik.hoffmann@almawatech.com

+49 160 532 50 43

Maksim Neubauer

Head of International Project Development

maksim.neubauer@almawatech.com

+49 175 6474 123

UV Oxidation for the Removal of Persistent Trace Substances

The ALMA OXI UV system combines a suitable oxidizing agent with intense UV irradiation. This interaction produces highly reactive radicals that can oxidize persistent and biologically difficult-to-degrade organic compounds. The system is suitable for advanced wastewater treatment, for the treatment of process water, and as a polishing stage within industrial water reuse concepts.

Step 1

Dosing Oxidizing Agents

Depending on the water composition, target substances, and purification goal, hydrogen peroxide, for example, or ozone, or another suitable oxidizing agent, is dosed in a controlled manner.

Step 2

Forming Radicals Through UV Radiation

The UV energy activates or breaks down the oxidizing agent. This produces highly reactive species that specifically attack organic molecular structures.

Step 3

Oxidize target substances

Compounds that are difficult to degrade are reduced, broken down, or converted into more readily biodegradable intermediate products.

Typical Applications of the ALMA OXI UV

Pharmaceutical Trace Substances Treatment of selected drug residues, active ingredients, and other organic compounds that are difficult to degrade biologically.
Hospital and Laboratory Wastewater Advanced treatment of wastewater containing complex or only partially biologically degradable residues.
Chemical, Paint, and Coatings Industry Oxidation of suitable dyes, organic complexing agents, and production-specific organic contaminants.
Textile and Surface Treatment Reduction of color and selected persistent organic processing aids.
Process Water and Water Reuse Polishing of water streams contaminated with organic matter prior to reuse within the facility or downstream ultrapure water treatment.

What determines the interpretation?

Type and concentration of target substances Different compounds react differently to UV radiation and the oxidizing agents used.
UV Transmission of Water Turbidity, color, and absorbent impurities affect how deep UV radiation can penetrate into the water.
Oxidizing Agents and Dosage The type and amount of the oxidizing agent are adjusted based on water quality, pollutant load, and the desired removal efficiency.
UV Radiation Source and Reaction Time Lamp type, radiation intensity, reactor geometry, and hydraulic residence time determine the available UV dose.
Preliminary testing with actual water Laboratory or pilot tests provide reliable data on dosage, energy requirements, reaction time, and achievable effluent quality.

UV/H₂O₂

A commonly used combination for the formation of reactive hydroxyl radicals and for the oxidation of suitable organic target compounds.

UV/Ozone

Combination of ozone oxidation and UV activation for project-specific applications involving persistent organic contaminants.

Custom Combination

Oxidizing agents, UV spectrum, and process parameters are selected based on the water analysis and the results from preliminary tests.

1–1,000 m³/h Specified hydraulic performance range

< 1 kWh/m³ angegebener Energiebedarf bei der Spurenstoffelimination

Custom UV Source Selection based on target materials, UV transmission, and treatment objective

Typical integration into an industrial processing chain

1. Pretreatment Filtration, biological treatment, or chemical-physical treatment to reduce solids and competing pollutants.

2. ALMA OXI UV Dosage of the oxidizing agent, UV activation, and oxidative treatment of the target substances.

3. Optional Post-Treatment Biological post-treatment, activated carbon, filtration, or membrane technology, depending on the selected process objective.

4. Discharge or Reuse Discharge of the treated water or further treatment for process water- and water reuse applications.