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ETL Verfahrenstechnik GmbH - Sample filtration for many applications

As an expert in the field of sample preparation, ETL Verfahrenstechnik GmbH has been providing reliable filtration systems for industrial and municipal wastewater treatment plants for more than three decades. Our many years of experience and know-how enable us to offer our customers a variety of filtration solutions for a wide range of applications.

Modern on-line analyzers rely on clear, solids-free samples for accurate determination of constituents. Using state-of-the-art filtration technology, ETL Verfahrenstechnik GmbH filtration systems ensure the provision of such samples. This allows efficient control of your plant, based on the measurement parameters, regardless of the brand of the on-line analyzer. All of our systems and even individual assemblies can be easily coupled with any on-line analysis technology. Our systems essentially automate proven sampling procedures and thus provide professional sample filtration, for example in advance of a phosphate measurement.

ETL Verfahrenstechnik GmbH produces wastewater filters in a wide range of sizes and designs. Our range includes plate filters, filter tubes and membrane filters tailored to the specific needs and requirements of the application.


We will be happy to advise you personally. Please call us: +49 8861 930907-0

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ETL Verfahrenstechnik GmbH - Competence in Filtration Technology

ETL Verfahrenstechnik GmbH guarantees its customers not only reliable and high-quality products, but also short delivery times and an excellent price-performance ratio. If you have any questions, our team of experienced experts is ready to provide you with competent advice.

Monitoring and control of wastewater constituents is a fundamental responsibility of operators of wastewater treatment plants and systems. It is of highest importance that only wastewater that complies with the prescribed limits is returned to the environment. To this end, wastewater is regularly sampled and analyzed, and appropriate measures are taken if necessary. This is done to protect the water and the health of all people. Our systems support those responsible by providing samples of the required quality for monitoring the limit values. In combination with the analyzers, our sample preparation equipment ensures precise determination of wastewater parameters. Regardless of the measuring method of the analyzer, we can respond to individual requirements by selecting the appropriate system and filter fineness.

ETL Verfahrenstechnik GmbH - Optimum filtration results

In filtration we basically differentiate between the separation ranges microfiltration and ultrafiltration. For the sample supply of measuring instruments, the range of microfiltration and ultrafiltration processes is particularly relevant. Here we treat particle sizes from 0.1 µm to 10 µm.

The membranes we use consist of a variety of different materials. While our TMS-C system uses a pore membrane, our CMS system uses a special metal texture. In addition, our PMC system uses a ceramic membrane for filtration. In this way, we can provide the right filtration system for any application. Trust ETL Verfahrenstechnik GmbH for optimal filtration results.


Energy saving due to chalk-free aeration elements

In times of rising energy costs, it makes sense for operators of wastewater treatment plants to invest in energy-saving measures. The main source of high electricity costs in wastewater treatment plants are the compressors needed for aeration. To reduce their power consumption, it is necessary to decalcify the aerators from time to time. This reduces the operating pressure in the aeration system. This is achieved with the DOSY „acid dosing system“. The aeration elements are decalcified by continuous dosing of formic or acetic acid. The acid dosing system is mobile and can therefore serve all aeration basins individually. This measure not only leads to more efficient aeration, but also contributes significantly to energy savings.


Acid dosing system

We will be happy to advise you personally. Please call us: +49 8861 930907-0

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Proven specialist in filter technology

The ETL Verfahrenstechnik GmbH is your proven specialist in the field of filter technology. We solve demanding challenges in filtration and support you competently, for example, in phosphate, nitrate and ammonium measurement as a part of wastewater analysis. In addition, we advise you in detail on the acquisition of a new filtration or dosing system, or if a modification of your existing system is pending.

Additionally, solutions for aerator cleaning to improve the efficiency of your plants and to reduce energy costs. Furthermore, we offer high quality backwash filters that ensure long-lasting and reliable operation of your systems.

Trust on ETL Verfahrenstechnik GmbH, your expert for customized solutions in the field of filtration technology.