Shiraz Wastewater Treatment Plant No. 2

Project: Operation, maintenance, and repair of Shiraz Wastewater Treatment Plant No. 2 Capacity: 250,000 m³/day Population Served: Not specified Client: Pasargad Steel Company (Fars Province) Contract Duration: 2 years System: Biological treatment using activated sludge, conventional aeration

Qom Wastewater Treatment Plants No. 2 & 3

Project: Operation, maintenance, and repair of Qom Wastewater Treatment Plant No. 2 and 3 Capacity: 100,621 m³/day Population Served: 503,650 Client: Qom Province Water & Wastewater Company Contract Duration: 5 years System: Biological treatment using activated sludge, conventional aeration

Mashhad Wastewater Treatment Plant No. 4 – Eltimour

Project: Operation, maintenance, and repair of Mashhad Wastewater Treatment Plant No. 4 (Al-teimour) Capacity: 80,000 m³/day Population Served: 500,000 Client: Mashhad Water & Wastewater Company Contract Duration: 20 years System: Advanced activated sludge, MLE process

Mashhad Wastewater Treatment Plant No. 5 – Kheen Arab

Project: Operation, maintenance, and repair of Mashhad Wastewater Treatment Plant No. 5 (Khin-e Arab) Capacity: 83,000 m³/day Population Served: 530,000 Client: Mashhad Water & Wastewater Company Contract Duration: 20 years System: Advanced sequencing batch reactor (ASBR)

Zahedan Wastewater Treatment Plant

Project: Operation, maintenance, and repair of Zahedan Wastewater Treatment Plant and Shahrabad Pumping Station Capacity: 144,000 m³/day Population Served: 900,000 Client: Sistan & Baluchestan Water & Wastewater Company Contract Duration: 3 years System: Activated sludge