Construction of Ahwaz Sewage by Pipejacking Method

Project Overview

Ahwaz, the center of Khuzestan Province, is located 850 kilometers from Tehran, and is divided into two parts, eastern and western, by the only navigable river in the country. Karun River provides drinking water for Ahwaz, as well as water for the agricultural and industrial needs of the region. Within five kilometers of the city, the Maleh River runs north-south, eventually flowing into the Shadagan marshland after about 80 kilometers. The entry of human waste into this river has prompted Ahvaz water and sewage officials to provide the necessary facilities to prevent the entry of waste into it, treat the waste, and then discharge the treated water into this river. The East Ahvaz Sewage Treatment Plant Project is designed to treat the eastern part of this city, which has a population of about 522,000 people and produces about 112,000 cubic meters of sewage per day. This treatment plant was built with advanced Sequencing Batch Reactor technology.

Wastewater treatment steps

Preliminary Treatment Unit: Includes Screening and Grit & Grease Removal Basin equipment, which captures large particles (wood, plastic, stone, etc.) and small particles (grease grains and sand) in order to prevent damage to the treatment plant equipment.

Biological Treatment: This treatment is carried out inside the SBR tank structure.

Final Treatment: In this stage the water is disinfected before leaving the treatment plant. Disinfection is carried out in the eastern part of Ahvaz wastewater treatment plant by means of a UV device.

Sludge Unit: Includes a sludge storage tank, a submersible pump station, a condensation and filtering area, and a sludge drying area (in order to use the stabilized sludge for agricultural purposes).

It is worth mentioning that the construction of a municipal wastewater treatment plant with SBR technology with these dimensions has been carried out for the first time in Iran.

Project Statistics