Environmental Protection

World Water Works, Inc.

DEMON Nitrogen Removal Treatment System

DEMON Nitrogen Removal Treatment System

DEMON Nitrogen Removal Treatment System

World Water Works’ DEMON treatment system for removal of nitrogen from wastewater provides reliable performance and numerous benefits over traditional nitrification-denitrification systems, making it ideal for municipal and industrial clients that have wastewater streams with high ammonia concentrations.

A DEMON system can play an important role in wastewater treatment energy self-sufficiency, reducing costs, and optimizing any wastewater facility’s footprint. Other major benefits include reductions in ammonia load to the main treatment process, reduced sludge handling volumes, and less greenhouse gas production. More than thirty systems are currently operational using the patented DEMON technology, which was based on extensive academic, lab, field pilot, and full-scale experience.

The DEMON system features ammonia oxidizing bacteria (AOB), which convert half the ammonia to nitrite. A second anaerobic biological process uses Anammox bacteria to convert the combination of nitrite and remaining ammonia directly into nitrogen gas. This system reduces energy requirements by 60 percent, eliminates the need for all chemicals, and produces 90 percent less sludge. The system also features a low carbon footprint – the anaerobic process actually consumes carbon dioxide. The true key to the process success is the patented control strategy and patent pending biomass separation device that enriches the specialized slowly growing biomass. This enhances process robustness and treatment capacity.


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