Urban waste water treatment per province and river basin district

Urban waste water treatment per province and river basin district

Regions Periods Sewage sludge Nutrients and heavy metals Ashes (1 000 kg) Sewage sludge Nutrients and heavy metals Nitrogen compounds as N (1 000 kg) Sewage sludge Nutrients and heavy metals Phosphorus compounds as P (1 000 kg) Sewage sludge Nutrients and heavy metals Copper (kg) Sewage sludge Nutrients and heavy metals Chromium (kg) Sewage sludge Nutrients and heavy metals Zinc (kg) Sewage sludge Nutrients and heavy metals Lead (kg) Sewage sludge Nutrients and heavy metals Cadmium (kg) Sewage sludge Nutrients and heavy metals Nickel (kg) Sewage sludge Nutrients and heavy metals Mercury (kg) Sewage sludge Nutrients and heavy metals Arsenic (kg)
Nederland 2020 91,789 19,111 11,170 120,715 12,003 325,845 25,755 311 7,939 143 3,247
Noord-Nederland (LD) 2020 10,906 2,361 1,233 11,929 1,179 31,138 2,622 25 828 14 328
Oost-Nederland (LD) 2020 19,507 4,024 2,198 24,508 2,632 73,493 4,587 63 1,744 29 612
West-Nederland (LD) 2020 37,779 8,631 4,989 54,395 4,565 140,432 12,785 121 2,986 68 1,835
Zuid-Nederland (LD) 2020 23,597 4,094 2,750 29,884 3,627 80,782 5,761 102 2,380 32 472
Groningen (PV) 2020 4,583 927 416 5,347 405 12,500 1,030 9 338 5 208
Fryslân (PV) 2020 4,404 1,045 577 4,308 577 11,718 1,117 10 347 5 99
Drenthe (PV) 2020 1,919 390 240 2,274 197 6,920 476 5 144 3 21
Overijssel (PV) 2020 6,218 1,074 704 8,962 954 25,122 1,620 20 694 9 122
Flevoland (PV) 2020 1,870 577 261 1,932 170 4,955 158 4 126 3 229
Gelderland (PV) 2020 11,419 2,373 1,232 13,614 1,508 43,416 2,809 39 925 17 260
Utrecht (PV) 2020 5,525 1,388 799 6,609 710 20,923 1,544 17 358 9 131
Noord-Holland (PV) 2020 12,801 2,829 1,724 20,547 1,489 51,003 4,294 40 1,033 24 521
Zuid-Holland (PV) 2020 17,351 4,081 2,261 24,137 2,135 61,158 6,310 57 1,450 32 1,018
Zeeland (PV) 2020 2,102 333 205 3,103 232 7,348 637 8 145 3 165
Noord-Brabant (PV) 2020 15,782 2,933 1,992 23,800 2,547 57,204 4,179 68 1,402 23 354
Limburg (PV) 2020 7,815 1,162 758 6,084 1,080 23,578 1,582 34 978 9 118
The river Eems 2020 4,583 927 416 5,347 405 12,500 1,030 9 338 5 208
The river Rijn (North Rijn) 2020 4,404 1,045 577 4,308 577 11,718 1,117 10 347 5 99
The river Rijn (East Rijn) 2020 19,007 3,867 2,211 23,488 2,468 73,538 4,661 62 1,704 30 563
The river Rijn (Central Rijn) 2020
The river Rijn (West Rijn) 2020 37,845 8,770 4,977 54,156 4,670 139,057 12,467 119 3,008 67 1,720
The river Maas 2020 21,230 3,862 2,550 27,499 3,132 75,411 5,324 94 2,211 29 423
The river Schelde 2020 4,720 640 439 5,918 750 13,621 1,156 16 332 6 234
Source: CBS.
Explanation of symbols

Table description


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 12 May 2022:
The figures of 2020 has been added.
Due to new information on 2019, total influent load of CZV and total Pollution Equivalents of the influent has increased with 4 percent in 2019 compared to the previous version. This results for the two parameters also in small changes in underlying classifications.

When will new figures be published?
New figures on 2021 will be published by March 2023.

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.
Nutrients and heavy metals
The total weight of nutrients and heavy metals removed with the sludge. Most heavy metals adsorb strongly to the sludge particles.
Ashes
The residue of non-inflammable, inorganic matter after incineration.
Nitrogen compounds as N
The total amount of nitrogen in organic compounds (e.g. proteins) and inorganic compounds (e.g. nitrate and ammonium).
Phosphorus compounds as P
The total amount of phosphorus in sewage sludge is analysed as P205 (diphosphorus pentoxide) converted to P total.
Copper
Chromium
Zinc
Lead
Cadmium
Nickel
Mercury
Arsenic