Development of Guideline Documents for the Inspection and Condition Assessment of Pressure Mains
Pressure mains, including both potable water mains and wastewater force mains, rarely receive the levels of inspection and maintenance routinely…
Breakpoint Chlorination of Petroleum Refinery WWTP Effluent
Breakpoint chlorination followed by dechlorination was studied as a non-biological option to remove ammonia and nitrite from a California petroleum…
The Best Bang for the Buck: Making the Most of Available Influent Carbon for Nutrient Removal
The premise of this paper is that, even if influent carbon is insufficient to meet effluent nutrient limit requirements, it…
The Dirty Secret of Primary Sludge Prefermenters
The impacts of the recycled solids load from primary sludge prefermenters on activated sludge BNR treatment processes are evaluated in…
Solids Process and Overall Plant Automation * A Systematic Approach
Instrumentation and supervisory control and data acquisition (SCADA) systems are becoming more and more sophisticated and allow processes and treatment…
Development of a Site-Specific Cleanup Goal for PAHs in Soil Based on Anthropogenic Background Levels
During removal of an industrial landfill in Folsom, California, fill material was excavated and processed through a mechanical screening plant…
Metals with Analytical Detection Limits or Background Levels in Filter Media that Exceed Regulatory Screening Levels in Ambient Air
A project manager tasked with determining the concentration of metals in ambient air at an environmental site faces several important…
Perimeter Air Monitoring for Soil Remediation
Most environmental project managers are well versed in characterizing and remediating contaminants in soil and water media. When soil remediation…
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…