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Injection Practices > Wastewater

Sewerage Structures Injection

Sealing leaks in sewerage infrastructure requires more than just water-stopping; it demands resistance to the highly corrosive environment of wastewater. EG Core provides advanced injection solutions for manholes, sewage treatment plants (STPs), and industrial effluent channels across Egypt, ensuring that hazardous waste remains contained within the system.

Crack Injection in Sewerage Concrete

Resistant to Chemical Aggression

Standard resins often fail in sewerage systems due to biogenic sulfuric acid and methane gas. We deploy specialized Chemical-Resistant Polyurethane and Acrylic resins specifically engineered to withstand acidic environments. These materials maintain their elasticity and bond strength even when exposed to high concentrations of H₂S and microbial growth.

Wastewater Engineering Specs

  • Typical Applications: Manhole sealing, pipe-to-wall joints, and STP tanks.
  • Materials: Sulfuric-acid resistant PU resins and hydrophobic gels.
  • Objective: Stopping infiltration (water entering) and exfiltration (sewage leaking).
  • Execution: Internal pressure injection without system shutdown.

Infiltration & Exfiltration Control

Groundwater infiltration into sewer lines significantly increases treatment costs and risks system overflow. Conversely, exfiltration leads to environmental contamination. Our injection techniques allow us to seal joints and cracks from the inside (negative side), providing a permanent barrier that protects the concrete structure and the surrounding ecosystem.

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