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EPC, O&M MBBR Treatment Plant in Jizan Sebia & Abu Arish and its network – NWC

EPC, O&M MBBR Treatment Plant in Jizan Sebia & Abu Arish and its network – NWC

Project Overview

This comprehensive, multi-phase infrastructure project encompasses both the EPC (Engineering, Procurement, and Construction) and long-term O&M (Operation and Maintenance) of advanced Sewage Treatment Plants (STPs) and their extensive collection networks in the cities of Sabya and Abu Arish within the Jazan region. The project is designed to completely overhaul the local municipal wastewater management framework. By deploying highly efficient Moving Bed Biofilm Reactor (MBBR) technology, the initiative ensures sustainable, safe, and environmentally compliant sewage treatment to support the rapid urban and population growth in southern Saudi Arabia.

Scope of Work

  • Engineering & Design (EPC Phase): Complete process engineering, hydraulic modeling for the underground sewage networks, and detailed architectural, civil, and electromechanical design for the treatment facilities in strict adherence to national environmental standards.

  • Procurement & Construction (EPC Phase): Execution of extensive civil works, including excavation, pipeline laying, and manhole construction for the collection network. Construction of the STP concrete basins, followed by the procurement and installation of all MEP assets (MBBR media, aeration blowers, sludge scrapers, and odor control units).

  • Network & Lifting Station Management (O&M Phase): Continuous monitoring, routine cleaning, and unblocking of the underground sewage pipeline networks in Sabya and Abu Arish, alongside the 24/7 operation and maintenance of the associated lifting and booster stations.

  • STP Operations & Quality Control (O&M Phase): Round-the-clock management of the MBBR biological treatment process, clarification, and disinfection stages. Conducting rigorous daily laboratory testing to ensure the treated effluent meets stringent environmental discharge and reuse criteria.

  • Asset Management & Maintenance: Implementing a comprehensive preventive and corrective maintenance program for all rotating equipment, control panels, and PLC/SCADA systems to maximize asset lifespan and eliminate operational downtime.

Technological Impact

The selection of MBBR (Moving Bed Biofilm Reactor) technology is a major engineering advantage for this project. MBBR utilizes thousands of specialized polyethylene carriers that provide a massive active surface area for biological growth. This allows the plants in Sabya and Abu Arish to treat large volumes of municipal wastewater within a highly compact physical footprint while remaining exceptionally resilient to toxic shock loads and sudden fluctuations in influent volume. Furthermore, the integration of a centralized SCADA telemetry network links the remote lifting stations directly to the main STPs, enabling automated flow control, rapid leak detection, and optimized energy consumption across the entire regional wastewater grid.