ETL Verfahrenstechnik GmbH
About
ETL Verfahrenstechnik GmbH, based in Peiting in southern Germany, has spent over 35 years engineering sample preparation and filtration systems that connect process streams to online water quality analyzers in municipal and industrial treatment plants. The company produces three distinct filtration platform lines: TMS-C uses pore membrane media, CMS-P employs a specialized metal weave, and PMC utilizes ceramic-like membrane material, together covering the microfiltration through ultrafiltration range from 0.1 to 10 micrometers. Each platform supports plate filters, inline filter probes, and membrane filter cartridges, all available in backflushable metal and ceramic variants that reduce maintenance by automatically cleaning the filter element in situ. On the chemical dosing side, ETL manufactures the DOSY-S mobile acid dosing system, which delivers formic or acetic acid to descale aeration elements in activated sludge basins, reducing backpressure and energy consumption, and the DOSY-F precipitant dosing system, which injects iron(III) chloride or similar coagulants to precipitate dissolved phosphate from wastewater at smaller treatment works where full-scale chemical treatment is uneconomical. Additional alkali dosing systems serve pH regulation in electroplating and industrial process water. All ETL filtration and dosing systems are designed to be vendor-neutral, compatible with any brand of online phosphate, nitrate, or ammonium analyzer. The company also provides retrofit and conversion services that upgrade existing filtration installations from any original manufacturer to current ETL technology.
Key Products
Sample preparation system using pore membrane technology for microfiltration/ultrafiltration of wastewater and process water samples prior to online analyzer measurement
Sample preparation system using special metal weave filter media for filtration of liquid samples in online monitoring applications
Sample preparation system using ceramic-like membrane filter media for microfiltration/ultrafiltration of liquid samples
Self-cleaning filter elements in metal or ceramic that can be backflushed for reduced maintenance and extended service life in continuous filtration applications
Flat filter elements for static pressure or vacuum filtration of liquid samples
Inline filter probes for direct insertion into process streams for sample extraction and filtration
Membrane filter elements covering microfiltration and ultrafiltration pore sizes for particle and contaminant removal from liquids
Mobile acid dosing system that delivers formic or acetic acid to descale and clean aeration elements in wastewater treatment plants, reducing operating pressure and energy consumption
Dosing system for precise delivery of precipitants such as iron(III) chloride to convert dissolved phosphates into solid phosphates for removal, reducing operating costs at smaller wastewater treatment plants
Dosing systems for pH regulation in electroplating and industrial process water applications, maintaining coating quality and process stability
Customized upgrade and conversion solutions for existing filtration and measurement installations from any manufacturer, adapting them to current requirements and ETL technology
Integrated cleaning solutions for aeration elements in wastewater treatment plants, combining acid dosing and filtration to remove lime deposits and restore performance
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