HEAT DRYING BIOSOLIDS:
Heat drying systems evaporate water from biosolids, creating a product that is free of pathogens (Class A). This paper discusses…
Nitrification Rate Testing using WERF*s High F/M Protocol:
The Water Environment Research Foundation (WERF) has developed three bench scale methods for determining the nitrification rate of a system….
EVALUATION OF PERCOLATE QUALITY RESULTING FROM RECYCLED WATER IRRIGATION IN CENTRAL OAHU
The Honolulu Board of Water Supply (HBWS), the municipal water utility for the island of Oahu, State of Hawaii, is…
ASSET MANAGEMENT: A FAD OR THE FUTURE?
By their nature, U.S. water and wastewater utilities are asset-intensive service providers. Even small or mid-sized utilities can have hundreds…
EXTENDING PIPELINE LIFE THROUGH CORROSION CONTROL OPTIMIZATION WITH
Significant cost savings were realized through deferred pipeline rehabilitation by increasing corrosion control for portions of the Martinez Transmission Line,…
NEW TECHNOLOGY FOR A NEW PLANT:
King County is designing a new wastewater treatment plant, known as Brightwater. Phase I of this project includes a 36-mgd…
INTEGRATED CORRECTIVE MEASURES
At a complex manufacturing site in the Southeast, being addressed under the RCRA corrective action program, 9 solid waste management…
Using LEED™ for Municipal Infrastructure Reality vs. Hype
Many municipalities, private agencies, and federal agencies are adopting goals to require that all new construction shall seek Leadership in…
IMPACT OF COVERING AERATION BASINS ON ACTIVATED SLUDGE SYSTEM PERFORMANCE WHILE COMPLYING WITH MON AND HON REQUIREMENTS
National Emissions Standards for Hazardous Air Pollutants (NESHAP) for miscellaneous organics (MON) and for hazardous organics (HON) (40 CFR Part…
IMPACT OF OPERATIONAL PARAMETERS ON THE REMOVAL OF PARTICULATE COD IN THE ACTIVATED SLUDGE PROCESS
The removal of particulate material in the aeration basin of the activated sludge process is mainly attributed to bioflocculation and…
CUSTOMER SERVICE OPTIMIZATION AND BENCHMARKING
To understand the true value of Customer Service in Water and Wastewater utilities, it’s important to keep in mind that…
STATE-OF-PRACTICE OF DAFT TECHNOLOGY *
Thickening sludges by dissolved-air flotation thickeners (DAFT) is well established and has been around for many years. Some wastewater treatment…