Sanitary / Municipal Date to be confirmed Saudi Aramco

Centralized Sewage Treatment Plant BOO — Jazan Economic City

A centralized build-own-operate sewage treatment plant at Jazan Economic City, treating tanker-delivered domestic wastewater from contractor camps — 5,000 m³/day, fully automated with 24/7 monitoring.

Centralized Sewage Treatment Plant BOO — Jazan Economic City
Capacity
5,000 m³/day
Technology
Screening → Equalization → Activated Sludge → Clarifier → Chlorination
Timeline
Date to be confirmed
Project type
Build-Own-Operate (BOO) centralized STP
Executive summary

A centralized domestic wastewater plant receiving tanker-truck inputs from Aramco contractor camps, treating 5,000 m³/day via an activated-sludge process with full sludge management. Fully automated by PLC with 24/7 online monitoring and remote alarms.

The plant treats 5,000 m³/day using an activated-sludge biological process with full sludge management — screening, equalization, biological reactor, clarifier, chlorination, storage tanks, and sludge drying beds — under complete PLC auto-control with remote alarm management.

The challenge

A growing economic-city development needed a centralized plant to receive and treat tanker-delivered domestic wastewater from multiple contractor camps, reliably and with minimal on-site staffing.

Site & process constraints
  • Multiple contractor camps, tanker-fed
  • Centralized capacity — 5,000 m³/day
  • Minimal staffing — high automation
Engineering approach

A treatment train sequenced to the contaminants.

Screening → Equalization → Activated Sludge → Clarifier → Chlorination

Screening and equalization buffer the tanker inflow; an activated-sludge biological reactor with clarifier reduces organics and separates solids; chlorination disinfects; and sludge drying beds dewater biosolids — all under complete PLC auto-control with 24/7 online monitoring and remote alarms.

High automation: 24/7 PLC monitoring and remote alarms suit a low-staffing site.
Technical specifications
Equipment & key parameters (from the project scope)
Equipment / parameterApplication / value
Biological ReactorActivated sludge
ClarifierSolids separation
ChlorinationDisinfection
ControlComplete PLC auto-control
Capacity5,000 m³/day
Capacity5,000 m³/day
Project typeBuild-Own-Operate (BOO) centralized STP
Implementation
Commissioning
Built and commissioned as a centralized BOO STP (date to confirm).
Results & outcomes

Activated-sludge biological reactor

Full sludge drying-bed system

24/7 PLC online monitoring & alarms

Verified post-commissioning performance figures (achieved effluent, throughput, uptime) to be confirmed — see CONTENT_GAPS.

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