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Summary chapter

Summary chapter for national stats

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2018

Luxembourg has 99.6% of its generated load compliant to the Urban Waste Water Treatment Directive (91/271/EEC).

In 2018, Luxembourg counted 50 agglomerations generating ≥2,000 p.e. each, of which:

  • 49 agglomerations, generating 617,992 p.e. of waste water, complied with the requirements of the Directive; and
  • 1 agglomeration, generating 2,280 p.e. of waste water, did not comply with the requirements of the Directive.

The waste water load generated in Luxembourg in 2018 was reported to be 620,272 p.e.

In 2018, Luxembourg had not yet reached the target for treating waste water to fully comply with the Directive.

  • All the waste water load is connected to collecting system or to Individual and Appropriate Systems; and
  • 0.4% of the collected waste water load must still undergo secondary treatment in line with the requirements of the Directive (approximately 2,300 p.e.),
  • All of the collected waste water load from agglomerations generating >10,000 p.e. and discharging into sensitive areas underwent more stringent treatment in line with the requirements of the Directive

0.7% of waste water load is addressed by means of individual or other appropriate systems (IAS) i.e. non-centralised sanitation systems (approximately 4,300 p.e.).

For the 50 agglomerations, there are 32 urban waste water treatment plants, with a total design capacity of 920,000 p.e., of which:

  • There is no plant active but not connected to collecting system,
  • 13 plants equipped with technology only for primary and secondary treatment,
  • 19 plants equipped with technology for more stringent treatment than secondary.

Based on the 2018 data, it seems that the load generated is lower than the design capacity.

Compliance rate by Article

Agglomeration Waste water load
Luxembourg in 2018 Total
[No]
Comply
[No]
Comply
[%]
Total
[p.e.]
Comply
[p.e.]
Comply
[%]
Article 3 (collection) 50 50 100 % 620,272 620,272 100 %
Article 4 (secondary treatment) 50* 49 98 % 615,922** 613,665 99.6 %
Article 5 (more stringent treatment) 13* 13 100 % 450,360** 450,360 100 %

Notice : This table contains only agglomerations with expired deadlines.

*The total [No of agglomerations] includes only those agglomerations that must provide secondary treatment / or more stringent treatment than secondary before discharging waste water from their treatment plants.

**The total [p.e. waste water load] is the sum of the load of all of the agglomerations that must provide secondary treatment or more stringent treatment than secondary before discharging waste water from their treatment plants.

Data source for table: Register, summary of MS data

37 agglomerations were not taken into account in the calculation of the compliance rate for Article 5 because these agglomerations generate ≤10,000 p.e. each.

Distance to target

Waste water load
Luxembourg in 2018 Target
[p.e.]
Distance to target
[p.e.]
Distance to target
[%]
Collection 620,272 0 0 %
Secondary treatment* 615,922 2,257 0.4 %
More stringent treatment** 450,360 0 0 %

*The target [p.e.] for secondary treatment represents the waste water load (collected and not collected) from all agglomerations that must be subject to secondary treatment, regardless of whether or not the agglomeration complies with Article 3.

** The target for more stringent treatment represents the waste water load (collected and not collected) from all agglomerations generating >10,000 p.e. and discharging into sensitive areas (regardless of whether or not the agglomeration complies with Article 3).

Data source for table: Register, summary of MS data

The expected annual investment costs per capita for installing and renewing waste water collecting systems and treatment plants is 137 EUR/inhabitant/year.

The investment needs for ensuring adequate urban waste water collection and treatment, i.e. compliance with the Directive, as estimated by the national authorities and included in their national plan, are at the level of EUR 7.62 million for the period 2020-2024. This covers works on treatment plants, with the forecasted investment cost of EUR 0 million (2020-2020) , and works on collecting systems and/or IAS, with a forecasted investment cost of EUR 7.62 million (2020-2024).However, as indicated in a recent OECD study, Luxembourg would need to increase their investments further to reach and maintain compliance. The OECD projected that the financing needs by 2030 (total cumulative additional expenditures for sanitation) is EUR 1.1 billion.

For the reference year 2018, Luxembourg reported the production of 9,083 tonnes of sludge. The sludge is mainly disposed for others (46 %) and incineration (12 %) or re-used for soil and agriculture (22 %) and others (19 %).The amount of sewage sludge which is mentionend under 'mslReuseOhters' is composted in Luxembourg. The amount of sewage sludge which is written under 'mslDisposalOthers' is incinerated (426 t DS/y) in Germany and composted (3764 t DS/y) in France

No information was reported on waste water reuse, storm water overflows by Luxembourg.