Graphs for national stats

In 2016, Italy had 3114 urban waste water agglomerations of more then 2 000 population equivalent (p.e). These agglomerations generated a total load of 77 150 067 p.e. 95% of this load is connected to collecting systems and 4% addressed through Individual and Appropriate Systems (storage or septic tanks, micro-stations,...). These agglomerations are connected to 151 primary treatment plant, 403 secondary treatment plants and 3335 more stringent treatment plants. All these treatment plants have a total design capacity of 102 326 996 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	2016
Collected by collecting system	73,178,106 pe, 94.9 %
Individual and Appropriate Systems	3,406,522 pe, 4.4 %
Discharged without treatment	565,439 pe, 0.7 %
Total	77,150,067 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	2016
Combine system	23,834,921 pe 373 na
Separative and combine system	20,410,559 pe 233 na
Separative system	4,879,980 pe 125 na
No information	28,024,607 pe 2,383 na

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

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	2016
Compliant	36,724,723 pe
Not Compliant	40,425,344 pe
Total	77,150,067 pe

*pe: Population equivalent

Number of agglomerations by compliance

Number of agglomerations by compliance

Compliance state	2016
Compliant	1,926
Not Compliant	1,188
Total	3,114

*: 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	2016
Compliant	62,002,654 pe
Not Compliant	8,676,916 pe
Not relevant	269,043 pe
Total	70,948,613 pe

*pe: Population equivalent

Number of treatment plant by compliance

Number of treatment plant by compliance

Compliance state	2016
Compliant	3,214
Not Compliant	618
Not relevant	57
Total	3,889

*: 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	2016
More stringent treatment	66,349,733 pe
Secondary treatment	4,076,430 pe
Primary treatment	522,450 pe
Total	70,948,613 pe

*pe: Population equivalent

Number of treatment plant by treatment type

Number of treatment plant by treatment type

Treatment type	2016
More stringent treatment	3,335
Secondary treatment	403
Primary treatment	151
Total	3,889

*: 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	2016
< 10,000 pe	9,204,456 pe
10,000 to 100,000 pe	30,636,626 pe
> 100,000 pe	37,308,985 pe
Total	77,150,067 pe

*pe: Population equivalent

Number of agglomeration by size

Number of agglomeration by size

Size	2016
< 10,000 pe	1,974
10,000 to 100,000 pe	1,007
> 100,000 pe	133
Total	3,114

*: Number of elements

Waste water treatment plant : Total load entering and discharged

Total load entering and discharged

Total load entering and discharged

	2016
Parameter	Entering	Discharged
BOD	34,411,903,300.25 tons/year	18,640,199,405.76 tons/year
COD	65,597,418,057.89 tons/year	15,585,577,793.33 tons/year
N	28,353,836,705.80 tons/year	31,900.07 tons/year
P	19,445.40 tons/year	22,715.28 tons/year

BOD, COD, N, P concentration

BOD, COD, N, P concentration

	2016
Parameter	Entering	Discharged
BOD	477,460.01 mg/l	258,629.98 mg/l
COD	910,154.36 mg/l	216,247.56 mg/l
N	393,405.24 mg/l	0.44 mg/l
P	0.27 mg/l	0.32 mg/l

MS Level statistics

Sludge destination

In 2016, 564,768 Tons DS of sludge was generated

Sludge destination

In 2016, 564,768 Tons DS of sludge was generated

Destination	2016
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	245,616.0
Re-used: Others	124,573.0
Disposed: Landfill	80,770.7
Disposed: Incineration	27,720.4
Disposed: Others	86,087.0
Missing	0.9
Total	564,768.0

Legal compliance

Legal compliance for collection in p.e.

Legal compliance for collection in p.e.

Year	Compliant	Not compliant	Not relevant
2016	72,941,057	4,209,010	-

Legal compliance for collection by number of agglomerations

Legal compliance for collection by number of agglomerations

Year	Compliant	Not compliant	Not relevant
2016	2,860	254	-

Legal compliance for 2nd treatment in p.e.

Legal compliance for 2nd treatment in p.e.

Year	Compliant	Not compliant	Not relevant
2016	52,377,443	20,505,094	295,568

Legal compliance for 2nd treatment by number of agglomerations

Legal compliance for 2nd treatment by number of agglomerations

Year	Compliant	Not compliant	Not relevant
2016	2,121	921	72

Legal compliance for 3rd treatment in p.e.

Legal compliance for 3rd treatment in p.e.

Year	Compliant	Not compliant	Not relevant
2016	22,517,572	11,592,415	39,068,119

Legal compliance for 3rd treatment by number of agglomerations

Legal compliance for 3rd treatment by number of agglomerations

Year	Compliant	Not compliant	Not relevant
2016	448	113	2,553