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Summary chapter

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There are probably an error in sludge destination (delta = 106279 t DS/y)

Summary chapter for national stats

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2018

Portugal has 91.8% of its generated load compliant to the Urban Waste Water Treatment Directive (91/271/EEC).

In 2018, Portugal counted 453 agglomerations generating ≥2,000 p.e. each, of which:

  • 392 agglomerations, generating 11,899,390 p.e. of waste water, complied with the requirements of the Directive; and
  • 61 agglomerations, generating 1,059,300 p.e. of waste water, did not comply with the requirements of the Directive.

The waste water load generated in Portugal in 2018 was reported to be 12,958,690 p.e.

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

  • 0 % of the waste water load must still be collected (approximately 6,100 p.e.); and
  • 6.2% of the collected waste water load must still undergo secondary treatment in line with the requirements of the Directive (approximately 729,600 p.e.),
  • 15% of the collected waste water load from agglomerations generating >10,000 p.e. and discharging into sensitive areas must still undergo more stringent treatment in line with the requirements of the Directive (approximately 244,300 p.e.).

0% of waste water load is addressed by means of individual or other appropriate systems (IAS) i.e. non-centralised sanitation systems (approximately 0 p.e.).

For the 453 agglomerations, there are 479 urban waste water treatment plants, with a total design capacity of 16,915,000 p.e., of which:

  • 1 plant is active but not connected to collecting system,
  • 283 plants equipped with technology only for primary and secondary treatment,
  • 195 plants equipped with technology for more stringent treatment than secondary.

For the 479 urban waste water treatment plants, there are 1 discharges without treatment with a total load of 3,000 p.e.

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
Portugal in 2018 Total
[No]
Comply
[No]
Comply
[%]
Total
[p.e.]
Comply
[p.e.]
Comply
[%]
Article 3 (collection) 453 452 99.8 % 12,958,690 12,937,690 99.8 %
Article 4 (secondary treatment) 438* 381 87 % 11,837,490** 10,997,390 92.9 %
Article 5 (more stringent treatment) 27* 22 81.5 % 1,627,350** 1,229,550 75.6 %

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

15 agglomerations were not taken into account in calculations of the compliance rate for Article 4 because the agglomerations use IAS for more than 98% of the collected load.

426 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
Portugal in 2018 Target
[p.e.]
Distance to target
[p.e.]
Distance to target
[%]
Collection 12,958,690 6,090 0 %
Secondary treatment* 11,837,490 729,575 6.2 %
More stringent treatment** 1,627,350 244,333 15 %

*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 2 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 114.82 million for the period 2020-2026. This covers works on treatment plants, with the forecasted investment cost of EUR 114.82 million (2020-2026) , and works on collecting systems and/or IAS, with a forecasted investment cost of EUR 0 million (2020-2020).However, as indicated in a recent OECD study, Portugal 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 4.8 billion.

For the reference year 2018, Portugal reported the production of 106,279 tonnes of sludge. The sludge is mainly missing for (100 %).

In 2018 1.2 % of treated waste water was reported to be reused (ERSAR-RASARP 2019,VOL1. Most of the waste water reused (i.e. 88% of the 1,2%) was used in the treatment plant area itself, for example, for irrigation of green spaces and/or washing equipment. Only a small amount (i.e. 12% of the 1,2%) was used by external entities.)

No information was reported on storm water overflows by Portugal.