Urban waste water treatment per province and river basin district

Urban waste water treatment per province and river basin district

Regions Periods Sewage sludge Wet sewage sludge by destination Cement industry (1 000 kg) Sewage sludge Dry solids by destination Cement industry (1 000 kg)
Nederland 2023 . .
Noord-Nederland (LD) 2023 . .
Oost-Nederland (LD) 2023 . .
West-Nederland (LD) 2023 . .
Zuid-Nederland (LD) 2023 . .
Groningen (PV) 2023 . .
Fryslân (PV) 2023 . .
Drenthe (PV) 2023 . .
Overijssel (PV) 2023 . .
Flevoland (PV) 2023 . .
Gelderland (PV) 2023 . .
Utrecht (PV) 2023 . .
Noord-Holland (PV) 2023 . .
Zuid-Holland (PV) 2023 . .
Zeeland (PV) 2023 . .
Noord-Brabant (PV) 2023 . .
Limburg (PV) 2023 . .
The river Eems 2023 . .
The river Rijn (North Rijn) 2023 . .
The river Rijn (East Rijn) 2023 . .
The river Rijn (Central Rijn) 2023
The river Rijn (West Rijn) 2023 . .
The river Maas 2023 . .
The river Schelde 2023 . .
Source: CBS.
Explanation of symbols

Table explanation


This table presents the most significant results of the annual survey Public treatment of urban waste water. The results are presented per province and river basin district (Rijn, Maas, Eems and Schelde) and include:
- number and capacity of the urban waste water treatment plants by type of treatment;
- the volume and concentration of organic matter, nutrients and heavy metals in the waste water running into waste water treatment plants (influent) and the volume of treated waste water (effluent). As of 2017, data on heavy metals are only inventoried for even years.
- the volume and destination of the sludge released, with nutrients and heavy metals. As of 2017, sludge data are only inventoried for even years.
Additional data on urban waste water treatment plants, process technology, energy consumption, generation of energy and sludge dewatering can be accessed on the Dutch version of StatLine.

Data available from: 1981

Status of the figures:
The figures in this table are definitive.

Changes as of 21 March 2025:
The figures of 2023 has been added.

When will new figures be published?
New figures on 2024 will be published by March 2026.

Description topics

Sewage sludge
Residue of treated waste water consisting of suspended solids and excess active sludge (biomass). Sewage sludge is measured including water (see Total wet sludge) or as dry solids.
Wet sewage sludge by destination
The volume of wet sewage sludge, i.e. including water by destination (processing method).
Cement industry
Co-incineration in cement ovens.
Dry solids by destination
Discharged sewage sludge in kilogrammes of dry solids by destination (processing method). Dry solid is the residue of sewage sludge after evaporation at 105 degrees centigrade.
Cement industry
Co-incineration in cement ovens.