Taif Wastewater Treatment Plant - Secondary SBR Treatment for 700,000 People in Makkah Province

The Taif Wastewater Treatment Plant is a major municipal facility located in Taif, Makkah Province, Saudi Arabia. It serves a population of approximately 700,000, making it a large-scale agglomeration under national wastewater management frameworks. The plant is operated by Cobra / Tawzea under the oversight of the Saudi Water Partnership Company (SWPC). The plant employs Sequencing Batch Reactor (SBR) technology for secondary treatment, a flexible and efficient biological process suitable for varying load conditions. With a designed capacity of 100,000 cubic meters per day and a current discharge volume of 80,000 cubic meters per day, the facility operates at 80% capacity, indicating robust utilization. The plant is regulated by the National Water Company (NWC), which oversees compliance with Saudi water quality standards. All treated effluent is directed to reuse for landscape and agricultural irrigation, supporting water conservation in the arid region. This practice aligns with Saudi Arabia's strategic goals for water sustainability, reducing demand on freshwater resources and contributing to local greening initiatives. The plant's inland location and reuse focus minimize direct environmental impact on natural water bodies.

Taif lies in the Sarawat Mountains of western Saudi Arabia, within a semi-arid climate. The plant's treated water is entirely reused for irrigation, preventing discharge into natural waterways and supporting local agriculture and landscaping. This reuse reduces pressure on groundwater aquifers and helps sustain green spaces in the urban area. The region's wadis (ephemeral streams) drain toward the Red Sea, but the plant's zero-discharge policy avoids any impact on these seasonal watercourses or the marine environment.