Using real-time monitoring and controls to reduce energy and chemical usage to treat wastewater.

Using real-time monitoring and controls to reduce energy and chemical usage to treat wastewater.

Ntensify: Advanced Aeration Control

Fewer resources. Better results.

With capacity constraints, population growth, aging infrastructure, rising energy costs, and more stringent regulations, facility managers are exploring ways to intensify treatment processes to stretch their budget.

Aeration is the most energy-intensive operation in wastewater treatment -and accounts for an estimated 45-75% of plant energy costs. BC is working with utilities across the country to apply and implement real-time advanced aeration control for more efficient and cost-effective biological nutrient removal (BNR). Using sensors and real-time feedback, facilities are able to precisely allocate treatment chemicals, intensify biochemical reactions, shorten treatment duration, and reduce facility energy and disposal costs.

Full-scale performance data and detailed bench-scale testing confirmed this innovative advanced aeration approach efficiently removed nitrate and phosphorous at low but controlled dissolve oxygen (DO) conditions. Combining efficient biological phosphorous removal (BPR) and simultaneous nitrification-denitrification (SND) has proven difficult to achieve through conventional BNR approaches. The A/O (anaerobic-aerobic) process is conventionally used for biological phosphorus removal application. However, BC demonstrated a high-rate A/O plant can achieve BPR and SND at low DO conditions when controlled by nutrient based aeration.

 

Jose Jimenez, PhD, PE, BCEE

Jose Jimenez, PhD, PE, BCEE

Vice President

Orlando, FL

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Pusker Regmi, PhD, PE

Pusker Regmi, PhD, PE

Senior Engineer

Beltsville, MD

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Do you want to increase treatment capacity without constructing additional tanks and reactors?

Process intensification using advanced aeration control maximizes nutrient removal within the existing volume; leverages technology to pinpoint resource requirements, reducing carbon, alkalinity, and aeration energy; and increases process reliability, resulting in improved ammonia, total inorganic nitrogen, and phosphorus in the effluent.

20-40%

Potential reduction in lifecycle capital and
operational costs compared to conventional approaches.

Do you want to increase treatment capacity without constructing additional tanks and reactors?

Process intensification using advanced aeration control maximizes nutrient removal within the existing volume; leverages technology to pinpoint resource requirements, reducing carbon, alkalinity, and aeration energy; and increases process reliability, resulting in improved ammonia, total inorganic nitrogen, and phosphorus in the effluent.

20-40

Potential reduction in lifecycle capital and operational costs compared to conventional approaches.

Implementation

Brown and Caldwell is implementing this innovation to meet our clients’ unique capacity and biological nutrient removal goals.

City of St. Petersburg, Florida

Purpose: to stabilize biological phosphorus removal and settling characteristics to increase process capacity and reduce aeration energy.

Pueblo, Colorado

Purpose: to improve nitrogen and phosphorus removal while minimizing use of supplemental carbon and aeration energy.

Implementation

Brown and Caldwell is implementing this innovation to meet our clients’ unique capacity and biological nutrient removal goals.

City of St. Petersburg, Florida
Purpose: to stabilize biological phosphorus removal and settling characteristics to increase process capacity and reduce aeration energy.

Pueblo, Colorado
Purpose: to improve nitrogen and phosphorus removal while minimizing use of supplemental carbon and aeration energy.