{"id":4574,"date":"2025-09-22T10:08:05","date_gmt":"2025-09-22T08:08:05","guid":{"rendered":"https:\/\/decker-vt.de\/reverse-osmosis-system-industry\/"},"modified":"2026-02-10T11:32:20","modified_gmt":"2026-02-10T10:32:20","slug":"reverse-osmosis-system-industry","status":"publish","type":"page","link":"https:\/\/decker-vt.de\/en\/products\/reverse-osmosis-system-industry\/","title":{"rendered":"Reverse osmosis system industry"},"content":{"rendered":"\n
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Reverse osmosis system industry, RO system<\/h1>\n<\/div>\n\n
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A reverse osmosis system (RO system) is used in the same way as a demineralized water system<\/a> to produce demineralized water<\/a>. The input water, often city water, is softened or hardness-stabilized and applied to a membrane under high pressure to produce consistently pure demineralized water for industrial purposes, known as permeate, and saline wastewater, so-called concentrate. <\/p>\n\n\n\n

High-purity water is often required in many industrial processes, e.g. when cleaning parts after metalworking. The use of city water \u201cfrom the tap\u201d is prohibited due to the formation of stains caused e.g. by hardness formers such as calcium and magnesium. The core element of the reverse osmosis system is a high-pressure pump that presses the inlet water onto a semi-permeable membrane at with around 14 to 16 bar. Depending on the membrane and process used, an average salt retention of 97 to 99% of the input water is achieved, typically with a conductance of 5 \u2013 15 \u00b5S\/cm at 15\u00b0C water temperature, related to the salt content. Depending on the process, there is also a continuous concentrate discharge, i.e. wastewater, of around 10% \u2013 25% of the input water, which can or must be discharged into the operational wastewater stream at various points. This requires a permit<\/g> from a discharge volume of 10 m\u00b3\/week,a separate wastewater treatment system for the treatment of the wastewater flow, however, is generally not required (exception e.g. excessive copper values in drinking water, as up to 2.0 mg\/l are permitted according to the Drinking Water Ordinance, but the monitoring values for Cu in wastewater are 0.5 mg\/l or often 1.0 mg\/l for less than 10 m\u00b3\/week of concentrate according to the respective drainage statutes, as well as other parameters). The reverse osmosis system industry generally requires a pre-treatment unit for the hardness formers, usually a (duplex) softening system based on ion exchangers, which is regenerated with common salt, or an anti-scalant dosing, which ensures temporary masking of the hardness formers through complex formation. <\/p>\n\n\n\n

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