Al Amerat Sewage Treatment Plant: Secondary Treatment with Reuse in Muscat, Oman

Al Amerat Sewage Treatment Plant is a key municipal facility located in the Amerat wilayat of Muscat Governorate, Oman. Operated by Haya Water, the plant serves a population of approximately 120,000, making it a significant component of the region's wastewater infrastructure. The plant is operational and treats wastewater using activated sludge with biological nutrient removal, ensuring effective pollutant reduction. The plant has a designed capacity of 18,000 cubic meters per day and currently treats 12,000 cubic meters per day, operating at about 67% capacity. As a secondary treatment facility, it meets the standards expected for large agglomerations in Oman. The Environment Authority of Oman oversees permitting and compliance, aligning with national environmental regulations. All treated effluent is reused for landscape irrigation, a critical practice in Oman's arid climate that conserves freshwater resources. This reuse supports green spaces in Amerat and reduces demand on groundwater. The plant's location inland, over 10 km from the coast, minimizes marine discharge risks, and its water recycling contributes to sustainable water management in the Muscat region.

The plant's treated water is fully reused for landscape irrigation, preventing discharge into natural water bodies and supporting local greenery in the arid Muscat region. This reuse reduces reliance on groundwater and helps maintain the ecological balance of the area. The plant's inland location avoids direct impacts on coastal or marine environments, and its water recycling supports the sustainability of the local watershed.