Clean Closure and the Small Landfill
In many cities across the United States, there are old landfills on prime property that are out of sync with…
Where's the Capacity? How to Stretch Capital Dollars by Retrieving Valuable Hidden Plant Capacity
In today’s economy, it is common for wastewater treatment plant administrators to seek funding. Repairs, equipment replacement, and upgrades or…
Biosolids- and Yard-Waste-to-Energy Feasibility Study in St. Petersburg, FL
The City of St. Petersburg, FL (City) produces an average of 41,000 wet tons per year (WTpY) of Class-B biosolids…
Riverview Siphon Improvements
A three-barrel inverted siphon, owned by the Metropolitan Council Environmental Services (MCES) in Saint Paul, Minnesota, experienced sanitary sewer overflows…
Treatability Study of to Support the Full-Scale Application of In-Situ Stabilization/Solidification of Mercury-Contaminated Soils at a Superfund Site in New York
Mercury occurs in the subsurface at a Superfund site in New York. The United States Environmental Protection Agency (USEPA) approved…
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…