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In 2016, Belgium had 380 urban waste water agglomerations of more then 2 000 population equivalent (p.e). These agglomerations generated a total load of 9 211 400 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 62 secondary treatment plants and 339 more stringent treatment plants. All these treatment plants have a total design capacity of 10 521 426 p.e.

Agglomeration : Generated load by collection

Generated Load by collection type (population equivalent – p.e.)
See the data table
Generated Load by collection type (population equivalent – p.e.)
See diagram
Destination2016
Collected by collecting system9,198,620 pe, 99.9 %
Individual and Appropriate Systems0 pe, 0 %
Discharged without treatment12,780 pe, 0.1 %
Total9,211,400 pe, 100 %
*pe: Population equivalent, *%: Rate
Generated Load by sewage network type (population equivalent – p.e.)
See the data table
Generated Load by sewage network type (population equivalent – p.e.)
See diagram
Network type2016
Combine system9,211,400 pe
380 na
*pe: Population equivalent, *na: Number of agglomeration

Agglomeration : Generated load by compliance

Total generated load by compliance (population equivalent – p.e.)
See the data table
Total generated load by compliance (population equivalent – p.e.)
See diagram
Compliance state2016
Compliant8,699,100 pe
Not Compliant508,500 pe
No information3,800 pe
Total9,211,400 pe
*pe: Population equivalent
Number of agglomerations by compliance
See the data table
Number of agglomerations by compliance
See diagram
Compliance state2016
Compliant362
Not Compliant17
No information1
Total380
*: Number of elements

Waste water treatment plant : Load entering by compliance

Total load entering by compliance (population equivalent – p.e.)
See the data table
Total load entering by compliance (population equivalent – p.e.)
See diagram
Compliance state2016
Compliant8,236,588 pe
Not Compliant66,990 pe
Total8,303,578 pe
*pe: Population equivalent
Number of treatment plant by compliance
See the data table
Number of treatment plant by compliance
See diagram
Compliance state2016
Compliant392
Not Compliant9
Total401
*: Number of elements

Waste water treatment plant : Load entering by treatment type

Total load entering by treatment type (population equivalent – p.e.)
See the data table
Total load entering by treatment type (population equivalent – p.e.)
See diagram
Treatment type2016
Secondary treatment117,660 pe
More stringent treatment8,185,918 pe
Total8,303,578 pe
*pe: Population equivalent
Number of treatment plant by treatment type
See the data table
Number of treatment plant by treatment type
See diagram
Treatment type2016
Secondary treatment62
More stringent treatment339
Total401
*: Number of elements

Agglomeration : generated load by agglomeration size

Total generated load by agglomeration size (population equivalent – p.e.)
See the data table
Total generated load by agglomeration size (population equivalent – p.e.)
See diagram
Size2016
< 10,000 pe1,062,100 pe
10,000 to 100,000 pe3,861,700 pe
> 100,000 pe4,287,600 pe
Total9,211,400 pe
*pe: Population equivalent
Number of agglomeration by size
See the data table
Number of agglomeration by size
See diagram
Size2016
< 10,000 pe229
10,000 to 100,000 pe137
> 100,000 pe14
Total380
*: Number of elements

Waste water treatment plant : Total load entering and discharged

Total load entering and discharged
See the data table
Total load entering and discharged
See diagram
2016
ParameterEnteringDischarged
BOD23,551.00 tons/year1,510.30 tons/year
COD56,878.00 tons/year11,113.90 tons/year
N5,630.00 tons/year2,298.80 tons/year
P667.00 tons/year256.60 tons/year
BOD, COD, N, P concentration
See the data table
BOD, COD, N, P concentration
See diagram
2016
ParameterEnteringDischarged
BOD73.82 mg/l4.73 mg/l
COD178.27 mg/l34.83 mg/l
N17.65 mg/l7.21 mg/l
P2.09 mg/l0.80 mg/l

MS Level statistics

Sludge destination
See the data table
In 2016, 164,808 Tons DS of sludge was generated
Sludge destination
See diagram
In 2016, 164,808 Tons DS of sludge was generated
Destination2016
Discharged into surface waters : Pipelines0.0
Discharged into surface waters : Ships0.0
Discharged into surface waters : Others0.0
Re-used: Soil and agriculture30,254.0
Re-used: Others53,502.0
Disposed: Landfill0.0
Disposed: Incineration76,270.0
Disposed: Others4,782.0
Total164,808.0
Water re-use

2016 : 0.008 % of treated waste water are re-used. This water is used in industry and in others use.
Explanation : Industrial process, services, infiltr. in aquifer

Legal compliance

Legal compliance for collection in p.e.
See the data table
Legal compliance for collection in p.e.
See diagram
YearCompliantNot compliantNot relevant
20169,211,400 - -
Legal compliance for collection by number of agglomerations
See the data table
Legal compliance for collection by number of agglomerations
See diagram
YearCompliantNot compliantNot relevant
2016380 - -
Legal compliance for 2nd treatment in p.e.
See the data table
Legal compliance for 2nd treatment in p.e.
See diagram
YearCompliantNot compliantNot relevant
20169,147,92046,938 -
Legal compliance for 2nd treatment by number of agglomerations
See the data table
Legal compliance for 2nd treatment by number of agglomerations
See diagram
YearCompliantNot compliantNot relevant
201636712 -
Legal compliance for 3rd treatment in p.e.
See the data table
Legal compliance for 3rd treatment in p.e.
See diagram
YearCompliantNot compliantNot relevant
20167,663,990457,8201,076,810
Legal compliance for 3rd treatment by number of agglomerations
See the data table
Legal compliance for 3rd treatment by number of agglomerations
See diagram
YearCompliantNot compliantNot relevant
20161454231