Wastewater Indicators

Population with access to improved sanitation systems	%	94.4 (2009)
WW volume collected	million m3/ year	246 (2010)
WW Volume treated	million m3/ year	240 (2010)

 

VOLUME OF WASTEWATER COLLECTED, OF WHICH VOLUME OF WASTEWATER TREATED, INCLUDING TYPE OF TREATMENT

The indicator refers to the volume of municipal wastewater collected by public sewage networks, septic systems and cesspits, and the volume of wastewater treated in wastewater treatment plants. Here reference is made to primary (mechanical) treatment that removes part of the suspended solids, and secondary (biological) treatment that uses aerobic or anaerobic micro-organisms to decompose most of the organic matter and retain some of the nutrients (around 20 - 30 %). Tertiary (advanced) treatment removes the organic matter even more efficiently.

 

 Availability of datasets for indicator calculation

Volume of wastewater collected
Volume of wastewater treated
Type of treatment
Use of treated water by type

 Governance for data collection

Administrative Level	Central administration
Frequency	Annually
Name of the department	Unité statistique de l'ONAS
Methodology	Collected from wastewater treatment plants
Obligation for data reporting (volumes/Perf) to central administration	Only if they are asked to do so
Master plan for wastewater management	Yes

 Data management

Information system	Thematic database	Electronic spreadsheet	No management system of data

Data quality

Quality process	No quality process
Spatial resolution	Aggregated at national level	At coastal region	At hydrological basin
Time series available	1975 - 1980 - 1985 - 1990 - 2000 ++ (annual increment)

Data policy

Csv	Excel	Xml	Word	Html	Pdf	Access database, Mysql, Postgresql	Shapefile	Other
Publicly availability
How to access from outside	external network (web services)	File transfert (FTP)	Other

 

 

 

Key documents

documents

Key links

links