Tehran wastewater network development is making reasonable progress (77%) and is planned to be launched by 2021, the technical and engineering deputy manager of the National Water and Wastewater Engineering Company (Abfa) said Monday.
"Close to 7,000 kilometers of pipelines have been laid in and around Tehran to connect the network to wastewater plants under construction in the south and west of the city," the Persian-language economic newspaper Donya-e-Eqtesad quoted Alireza Sadatifard as saying.
Expansion of wastewater network has been a priority, but lack of funds plus rapid expansion of urban areas has slowed the process.
Tehran Province Water and Wastewater Company is the main contractor of a major water project, dubbed as Tehran Water Ring that seeks to provide residents with clean water and improve the quality of potable water in all urban areas.
Work on the project started in 2015 and includes 180km of pipeline connecting seven water treatment facilities and ensure water quality in the ever-expanding capital.
Tehran Water Ring will save about 750 million cubic meters of water per annum, 400mcm of which will be pumped into underground water tables, 300mcm will go for farming and the rest to water green spaces.
According to the official, 8 wastewater plants with the capacity to treat 235,000 cubic meters of water per day are under construction in 9 counties in the capital, namely Qarchak, Varamin, Pakdasht, Qods, Rudehen, Baharestan, Rudbar-e Qasran, Damavand and Firuzkuh.
Based on long-term development programs, Tehran wastewater network should be completed by 2021at an estimated cost of $100 million. Upon completion, 250 mcm of recycled water will be added to the water reserves for use in agricultural farms and industrial facilities.
Tehran’s water reserves are near 1.06 billion cubic meters, 70% of which comes from surface waters and 30% groundwater.
