Treatment of urban waste water; by province and river basin district

This table contains figures on urban or public sewage treatment plants under management at the water boards. The table shows, by province and by river basin district (Rhine, Maas, Eems and Scheldt), the following results: — the numbers and design capacity of the urban sewage treatment plants (rwzis), per treatment type. — the loads and concentrations of organic matter, nutrients and heavy metals in the waste water (influent) landed and the treated waste water (effluent). In 2017, data on heavy metals will only be published for the same years. — the quantities and destination of the sewage sludge released, containing the nutrients and heavy metals contained therein. As of 2017, this data will only be published for the same years. Data available from: 1981. Status of the figures: The figures in this table are final. Amendments as of 22 March 2023: The table is supplemented by figures for 2021. When will there be new figures? The new 2022 figures will be released in March 2024.