Al Saja'a STP - Sharjah, UAE Wastewater Treatment Plant

Al Saja'a STP is a wastewater treatment plant located in the Al Saja'a Industrial Area of Sharjah, United Arab Emirates. The facility is owned by the Sharjah Investment and Development Authority (Shurooq) and the Sharjah Municipality, and is operated by Qatra, a joint venture between Veolia and BESIX. The plant serves the industrial and municipal needs of the region, with a designed capacity of 35,000 m³/day and a current discharge volume of 30,000 m³/day, indicating high utilization at 85.71%. The plant employs secondary treatment through a tanker-fed receiving system combined with biological treatment. As a facility in the United Arab Emirates, it operates under the regulatory oversight of the Sharjah Municipality, which issues permits and ensures compliance with national wastewater standards. For a plant of this scale, secondary treatment is typical for non-sensitive areas, and the high capacity utilization suggests robust demand for reclaimed water. All treated effluent is reused for landscape irrigation and industrial applications within Sharjah, supporting water conservation in the arid UAE environment. This reuse strategy reduces demand on freshwater resources and aligns with the country's sustainability goals. The plant is located more than 10 km from the coast, minimizing direct marine discharge risks.

The plant's treated water is fully reused, preventing discharge into natural water bodies. This supports the local watershed by reducing abstraction from groundwater and desalination plants. The arid climate of Sharjah makes water reuse critical for maintaining green spaces and industrial operations. The facility's inland location, over 10 km from the Arabian Gulf, avoids coastal discharge and protects marine ecosystems.