Graphs for national stats

In 2018, Spain had 2059 urban waste water agglomerations of more then 2 000 population equivalent (p.e). These agglomerations generated a total load of 64 535 402 p.e. 99% of this load is connected to collecting systems and 1% addressed through Individual and Appropriate Systems (storage or septic tanks, micro-stations,...). These agglomerations are connected to 30 primary treatment plant, 566 secondary treatment plants and 1203 more stringent treatment plants. All these treatment plants have a total design capacity of 99 794 323 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	63,628,387 pe, 98.6 %
Individual and Appropriate Systems	638,768 pe, 1 %
Discharged without treatment	268,248 pe, 0.4 %
Total	64,535,402 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
Separative and combine system	5,923,633 pe 129 na
Combine system	28,985,459 pe 939 na
No information	29,489,929 pe 978 na
Separative system	136,381 pe 13 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	54,102,996 pe
Not Compliant	10,432,406 pe
Total	64,535,402 pe

*pe: Population equivalent

Number of agglomerations by compliance

Number of agglomerations by compliance

Compliance state	2018
Compliant	1,579
Not Compliant	480
Total	2,059

*: 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	252,038 pe
Not Compliant	7,767,592 pe
Not relevant	422,372 pe
Compliant	57,180,657 pe
Total	65,622,659 pe

*pe: Population equivalent

Number of treatment plants by compliance

Number of treatment plants by compliance

Compliance state	2018
Not connected	220
Not Compliant	259
Not relevant	75
Compliant	1,465
Total	2,019

*: 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	12,096,504 pe
Primary treatment	668,790 pe
Not connected	165,458 pe
More stringent treatment	52,691,907 pe
Total	65,622,659 pe

*pe: Population equivalent

Number of treatment plants by treatment type

Number of treatment plants by treatment type

Treatment type	2018
Secondary treatment	603
Primary treatment	31
Not connected	181
More stringent treatment	1,204
Total	2,019

*: 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	6,035,959 pe
10,000 to 100,000 pe	19,721,599 pe
> 100,000 pe	38,777,844 pe
Total	64,535,402 pe

*pe: Population equivalent

Number of agglomerations by size

Number of agglomerations by size

Size	2018
< 10,000 pe	1,265
10,000 to 100,000 pe	668
> 100,000 pe	126
Total	2,059

*: 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	45,203,231.75 tons/year	3,288,591.14 tons/year
COD	93,088,440.63 tons/year	31,994,686.12 tons/year
N	5,933,281.23 tons/year	16,703,317.98 tons/year
P	707,244.42 tons/year	1,421,125.36 tons/year

BOD, COD, N, P concentration

BOD, COD, N, P concentration

	2018
Parameter	Entering	Discharged
BOD	11,644.05 mg/l	847.12 mg/l
COD	23,978.96 mg/l	8,241.62 mg/l
N	1,528.37 mg/l	4,302.66 mg/l
P	182.18 mg/l	366.07 mg/l

MS Level statistics

Sludge destination

In 2018, 552,310 Tons DS of sludge was generated

Sludge destination

In 2018, 552,310 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	11,346.9
Re-used: Soil and agriculture	423,514.0
Re-used: Others	0.0
Disposed: Landfill	54,212.1
Disposed: Incineration	55,251.9
Disposed: Others	7,984.4
Missing	0.8
Total	552,310.0

Legal compliance

Legal compliance for collection in p.e.

Legal compliance for collection in p.e.

Year	Compliant	Not compliant	Not relevant
2018	63,505,818	1,029,584	-

Legal compliance for collection by number of agglomerations

Legal compliance for collection by number of agglomerations

Year	Compliant	Not compliant	Not relevant
2018	2,054	5	-

Legal compliance for 2nd treatment in p.e.

Legal compliance for 2nd treatment in p.e.

Year	Compliant	Not compliant	Not relevant
2018	56,486,242	7,022,177	386,866

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	1,511	440	108

Legal compliance for 3rd treatment in p.e.

Legal compliance for 3rd treatment in p.e.

Year	Compliant	Not compliant	Not relevant
2018	15,210,782	4,007,512	44,410,093

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	213	63	1,783