Corrosion and odor management in sewer systems

Area of Science:

• Environmental Engineering
• Urban Water Management
• Corrosion Science

Background:

• Sewers release harmful gases like hydrogen sulfide and volatile organic compounds.
• Effective control and mitigation strategies are essential for public health and infrastructure integrity.
• Understanding in-sewer processes is key to developing advanced abatement technologies.

Purpose of the Study:

• To review recent advancements in sulfide abatement technologies for sewer systems.
• To highlight novel, low-cost solutions targeting sewer biofilms.
• To discuss the role of dynamic modeling in sewer system management and planning.

Main Methods:

• Optimization of existing sulfide abatement technologies.
• Development of new, cost-effective methods for biofilm control.
• Application of dynamic models for water, air, and concrete phases in sewers.
• Demonstration of online control for reduced chemical consumption.

Main Results:

• Significant improvements in sulfide abatement efficiency.
• Reduced chemical usage through online control strategies.
• Development of dynamic models aiding in sewer system planning and maintenance.
• Emergence of innovative, low-cost solutions for sewer biofilm management.

Conclusions:

• Ongoing research has led to optimized sulfide abatement and novel biofilm control methods.
• Dynamic modeling enhances sewer system management.
• Future efforts should focus on network-wide control and integrating sewers into urban water systems.