Graphs for national stats

In 2018, Portugal had 453 urban waste water agglomerations of more then 2 000 population equivalent (p.e). These agglomerations generated a total load of 12 958 690 p.e. 100% of this load is connected to collecting systems and 0% addressed through Individual and Appropriate Systems (storage or septic tanks, micro-stations,...). These agglomerations are connected to 7 primary treatment plant, 276 secondary treatment plants and 195 more stringent treatment plants. All these treatment plants have a total design capacity of 16 915 282 p.e.

Agglomeration : Generated load by collection

Generated Load by collection type (population equivalent – p.e.)

Generated Load by collection type (population equivalent – p.e.)

Destination	2018
Collected by collecting system	12,952,600 pe, 100 %
Individual and Appropriate Systems	0 pe, 0 %
Discharged without treatment	6,090 pe, 0 %
Total	12,958,690 pe, 100 %

*pe: Population equivalent, *%: Rate

Generated Load by sewage network type (population equivalent – p.e.)

Generated Load by sewage network type (population equivalent – p.e.)

Network type	2018
No information	12,958,690 pe 453 na

*pe: Population equivalent, *na: Number of agglomerations

Agglomeration : Generated load by compliance

Total generated load by compliance (population equivalent – p.e.)

Total generated load by compliance (population equivalent – p.e.)

Compliance state	2018
Compliant	11,899,390 pe
Not Compliant	1,059,300 pe
Total	12,958,690 pe

*pe: Population equivalent

Number of agglomerations by compliance

Number of agglomerations by compliance

Compliance state	2018
Compliant	392
Not Compliant	61
Total	453

*: Number of elements

Waste water treatment plant : Load entering by compliance

Total load entering by compliance (population equivalent – p.e.)

Total load entering by compliance (population equivalent – p.e.)

Compliance state	2018
Not connected	3,000 pe
Not relevant	55,200 pe
Not Compliant	939,810 pe
Compliant	11,954,590 pe
Total	12,952,600 pe

*pe: Population equivalent

Number of treatment plants by compliance

Number of treatment plants by compliance

Compliance state	2018
Not connected	1
Not relevant	11
Not Compliant	63
Compliant	404
Total	479

*: Number of elements

Waste water treatment plant : Load entering by treatment type

Total load entering by treatment type (population equivalent – p.e.)

Total load entering by treatment type (population equivalent – p.e.)

Treatment type	2018
Secondary treatment	4,666,370 pe
Primary treatment	163,710 pe
More stringent treatment	8,119,520 pe
Not connected	3,000 pe
Total	12,952,600 pe

*pe: Population equivalent

Number of treatment plants by treatment type

Number of treatment plants by treatment type

Treatment type	2018
Secondary treatment	276
Primary treatment	7
More stringent treatment	195
Not connected	1
Total	479

*: Number of elements

Agglomeration : generated load by agglomeration size

Total generated load by agglomeration size (population equivalent – p.e.)

Total generated load by agglomeration size (population equivalent – p.e.)

Size	2018
< 10,000 pe	1,342,170 pe
10,000 to 100,000 pe	3,868,420 pe
> 100,000 pe	7,748,100 pe
Total	12,958,690 pe

*pe: Population equivalent

Number of agglomerations by size

Number of agglomerations by size

Size	2018
< 10,000 pe	295
10,000 to 100,000 pe	125
> 100,000 pe	33
Total	453

*: Number of elements

Waste water treatment plant : Total load entering and discharged

Total load entering and discharged

Total load entering and discharged

	2018
Parameter	Entering	Discharged
BOD	data not available	9,378.50 tons/year
COD	data not available	33,979.93 tons/year
N	data not available	14,291.04 tons/year
P	data not available	1,080.82 tons/year

MS Level statistics

Sludge destination

In 2018, 106,279 Tons DS of sludge was generated

Sludge destination

In 2018, 106,279 Tons DS of sludge was generated

Destination	2018
Discharged into surface waters : Pipelines	0.0
Discharged into surface waters : Ships	0.0
Discharged into surface waters : Others	0.0
Re-used: Soil and agriculture	0.0
Re-used: Others	0.0
Disposed: Landfill	0.0
Disposed: Incineration	0.0
Disposed: Others	0.0
Missing	106,279.0
Total	106,279.0

Water re-use

2018 : 1.2 % of treated waste water are re-used.

Explanation : 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.

Legal compliance

Legal compliance for collection in p.e.

Legal compliance for collection in p.e.

Year	Compliant	Not compliant	Not relevant
2018	12,937,690	21,000	-

Legal compliance for collection by number of agglomerations

Legal compliance for collection by number of agglomerations

Year	Compliant	Not compliant	Not relevant
2018	452	1	-

Legal compliance for 2nd treatment in p.e.

Legal compliance for 2nd treatment in p.e.

Year	Compliant	Not compliant	Not relevant
2018	10,997,390	840,100	1,115,110

Legal compliance for 2nd treatment by number of agglomerations

Legal compliance for 2nd treatment by number of agglomerations

Year	Compliant	Not compliant	Not relevant
2018	381	57	15

Legal compliance for 3rd treatment in p.e.

Legal compliance for 3rd treatment in p.e.

Year	Compliant	Not compliant	Not relevant
2018	1,229,550	397,800	11,325,250

Legal compliance for 3rd treatment by number of agglomerations

Legal compliance for 3rd treatment by number of agglomerations

Year	Compliant	Not compliant	Not relevant
2018	22	5	426