Taking Your Digester Gas on the Road: The Case to Upgrade Digester Gas for Vehicle Fuel
Often digester gas generated by anaerobic digestion at WWTPs is used to produce heat and electricity through cogeneration, but under…
Sustainability Comparison of Class A and Class B Biosolids Technologies
Increasing numbers of municipalities are incorporating sustainability goals into project decision making and planning criteria. The primary criteria influencing solids…
WEF/WERF Study of BNR Plants Achieving Very Low N and P Limits: Evaluation of Technology Performance and Process Reliability
The Water Environment Research Foundation (WERF) funded a two-year comprehensive study of nutrient removal plants designed and operated to meet…
Air Dispersion Modeling at Wastewater Plants: A Significant Shift in Odor Objectives
Engineers have used air dispersion modeling for many years to determine offsite odor impacts from wastewater facilities. The recent use…
Improving Energy and Operational Efficiency in Odor Control Systems
Wastewater treatment plant odor control systems utilize significant resources in terms of electrical energy, water use, and, in some cases,…
The Do It Yourself (DIY) Approach to Treating Extreme H2S Odors in Little River, South Carolina
The Morgan Street Pump Station (MSPS) is Little River Water and Sewer Company, Inc.’s (LRWSC) main pump station and is…
Biogas Use in Chapel Hill, NC
The Orange Water and Sewer Authority (OWASA) has historically used biogas generated by their anaerobic digesters to heat the digesters…
Codigestion: How to Make It a Financial *Win-Win* for All Parties
In recent years, the practice of co-digesting sewage sludge with other high strength organic wastes has become more common, as…
Development of a Land Application Program for Class B Biosolids at the North Davis Sewer District
A study evaluated the potential for developing a land application program for Class B biosolids produced by the North Davis…
Focus on Trenchless Technology Results in Successful Interceptor Sewer Replacement
The City of Lake Oswego, Oregon faced difficult questions with their main interceptor sewer running through Oswego Lake being seismically…
Hydraulic Analysis* Inspection* and Condition Assessment of the City of San Diego PS65 FM
Pump station capacity upgrades are required at Pump Station No. 65 (PS65) to adequately handle typical dry-weather flows and peak…
Rehabilitation of a Hydraulically Limited Sewer 30-Feet Deep Under Interstate-5
With a planned expansion to an upstream pump station, the City of Portland’s Bureau of Environmental Services, Oregon (City), determined…