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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 3417 more stringent treatment plants. All these treatment plants have a total design capacity of 102 359 746 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 |
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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 |