UV-technology, advanced oxidation (aop), engineering, recycling and photo-preparation

for industrial use

Advanced Oxidation Processes (AOP) for wastewater treatment

Enviolet is the market leader in industrial UV oxidation and UV-based advanced oxidation processes (AOP) for wastewater treatment.

We utilise the energy of ultraviolet light to remove organic contaminants from process streams, to degrade pollutants and micropollutants in wastewater, to disinfect aqueous media, and for selected photochemical synthesis processes.

To this end, we develop and manufacture high-performance UV reactors, photo-oxidation systems and UV-AOP systems that combine maximum efficiency, robustness and cost-effectiveness for industrial applications.

Modern UV-disinfection

UV disinfection systems for tank disinfection – tailored to your specific application.

Whether in cooling water circuits in cooling towers to control Legionella, in rinsing systems in surface treatment for quality assurance, in climate chambers, deionised water tanks or drinking and process water reservoirs – we direct the UV radiation precisely where it can be most effective.

Each system is individually designed to meet the specific process requirements and operating conditions. This results in tailor-made solutions for reliable and sustainable disinfection directly within the tank – efficient, chemical-free and optimally integrated into the existing process.

Containerized advanced oxidation processes (AOP)

Even in confined spaces, we can install complete AOP wastewater treatment systems – for example, for detoxification, UV oxidation or AOP – in a containerised design.

We guarantee compliance with all safety standards. Thanks to our many years of expertise in the construction of AOP systems, we can offer you a solution that makes no compromises in terms of functionality, efficiency or durability.

Production Facilities and Infrastructure

Since our foundation in 1997, we have continued to grow and develop.
Today, we design, develop, build and maintain UV oxidation systems for AOP processes from three locations:

Head office in Karlsruhe
- 570 m² for project management, administration, laboratory and cleanroom
- 1,650 m² for the production of AOP systems, including a pilot plant
Witzenhausen site (near Kassel)
- 400 m² for the production of AOP systems, with a warehouse and office
China site
- 400 m² for the production of AOP systems, with a warehouse in Changsha
- Office in Guangzhou

Wastewater treatment plant for the removal of antibiotics from API synthesis

For 11 years, the world’s largest manufacturer of antibiotics sought a solution to its wastewater problem. Today, an enviolet UV-AOP system reliably breaks down the antibiotics and their degradation products resulting from the synthesis of active ingredients. The coffee-brown wastewater at the start of treatment has COD concentrations of 60 to 75 g/L and contains highly toxic organic compounds. During the Advanced Oxidation Process (AOP), these compounds are broken down by oxidation, so that the toxicity of the wastewater is completely eliminated. The water can then be further treated in the existing biological wastewater treatment plant.
Before the enviolet system was installed, parts of the wastewater were discharged in diluted form or incinerated at great expense. Today, the UV-AOP system eliminates around 4,800 kg of antibiotic-active compounds daily before they enter the aquatic environment.
The operator was awarded an environmental prize for this pioneering environmental achievement.

(Photo: Wastewater samples from various treatment stages of the UV-AOP system)

Photo reactor for preparative photo chemistry (ATEX)

Since 2013, enviolet has been offering the Synviolet®, a light reactor for photochemical synthesis with ATEX certification. The reactor is designed for use with organic solvents and operation in potentially explosive atmospheres.

The Synviolet® series is based on a modular concept and can be flexibly configured from various components.

In addition to the development and construction of photoreactors, we have extensive experience in the associated measurement, control, process and separation technology, as well as expertise in the underlying chemistry of the reactions to be carried out. This expertise, gained from numerous completed industrial projects, enables us to provide our customers with comprehensive support to large-scale implementation.

Process analytics integrated into the AOP wastewater treatment plant

A fully automated AOP system requires more than just a good control system.

It is only through the intelligent integration of online analysis, concentration measurement, flow monitoring and other process data that the UV oxidation process can be automatically adapted to the actual pollutant load and the required treatment performance. 

This ensures the system operates at optimum efficiency at all times with minimal operational effort. Whilst the operator focuses on their core business, the AOP system and enviolet Remote Support manage pollutant removal in the background.

From the feasibility study to a turnkey advanced oxidation (AOP) plant

We support you every step of the way, from defining treatment objectives and conducting feasibility studies in our application laboratory right through to the delivery of a turnkey advanced oxidation process (AOP) plant for your wastewater treatment.

Even after commissioning, we remain at your side as your partner – assisting with process adjustments due to changing operating conditions, optimising plant operation and maintaining your AOP plant. In this way, we ensure that your wastewater treatment operates reliably and economically in the long term.

We do what we do with passion – and have been doing so successfully for decades.