Tehran City Water and Wastewater Company
2010 Oct - 2014 Dec
Type of Project :
Contract Subject: Basic design and Engineering, Procurement, Construction, Installation, and Operation of a water treatment plant with a capacity of 216,000 m3/day
The average turbidity of raw water entering the treatment plant is 1,000 NTU while our design assures the turbidity of 0.3NTU for the treated water. The water quality obtained from the treatment process is assured to meet AWWA standards.
The treatment process includes Aeration, Flash mixing unit, Flocculator , Lamella clarifier, Gravity filter (Dual media), PAC and chlorination unit and control system.
Using Lamella clarifier, dual media filter, PAC injection system for the first time in the country outstand this project in the region.
Two 10,000 m3 reservoirs constructed, that treated water goes through before entering the distribution network.
Other aspects that make this project unique in the region are using a special design for some of the units of the plant such as cascade aeration, Sludge, drying beds and control system which is completely redundant without any electrical interlock.