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Wraz z przyjęciem dyrektywy Rady Europy nr 91/278/EWG z 21 maja 1991 r. w sprawie oczyszczania ścieków komunalnych ustanowione zostały nowe standardy emisji dla ścieków wprowadzanych do wód powierzchniowych. Na obszarach wrażliwych dla wszystkich oczyszczalni ścieków o RLM większej niż 10 tys. obligatoryjne jest usuwanie substancji biogennych.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.