LOW-TECHNOLOGY CLASS A PROCESSES: WERF DOCUMENTATION
Class A or pathogen-free biosolids are being produced by low-cost, low-technology biosolids treatment processes. The low-technology processes evaluated here are:…
HEAT DRYING BIOSOLIDS AT SMALL TO MEDIUM SIZE PLANTS:
This paper looks at the growing trend towards biosolids heat drying at small to medium size wastewater plants. Biosolids heat…
Evolution of the King County Biosolids Program: Evaluating Class A Cost and Feasibility
The King County biosolids recycling program was initiated in the early 1970s after the passage of the Clean Water Act,…
Water and Wastewater: Risky Business!
Considerations of risk drive most asset decisions and thus most utility spending. Without a way to address risk quantitatively, many…
AN UPDATE ON THE LONGEST RUNNING CLASS-A THERMOPHILIC ANAEROBIC SYSTEM IN THE USA
The Class A thermophilic anaerobic digestion improvements at the Orange Water and Sewer Authority¡¦s (OWASA¡¦s) Mason Farm wastewater treatment plant…
Integrating CMOM and Asset Management The Key to Long-term Sustainable Program Successs
County Sanitation District No. 1 (CSD-1) is a stand-alone satellite sewer district that provides wastewater collection and conveyance for its…
BULKING CONTROL HAS BLOSSOMED…How well is your selector doing?
Selector applications for bulking control in activated sludge plants have become much more common. Both anoxic and anaerobic selectors prevent…
SUCCESSFUL INTEGRATED WATER RESOURCE PLANNING * KNOW YOUR BENEFITS AS WELL AS COSTS. THE SUN VALLEY WATERSHED CASE STUDY.
The traditional approach to solving flood control problems in the Los Angeles region has been to construct underground storm drains…
CREATING NEW SEWER SERVICE CHARGES TO REHABILITATE AN AGING SEWER SYSTEM
In 2003 the City of Redondo Beach enacted a new sewer service charge of $5 per month for single-family dwellings….
AN OBSERVATIONAL APPROACH FOR EFFECTIVE REMOVAL OF PCE BY AS/SVE.
Operable Unit Three (OU3) of the FCX-Statesville Superfund Site (Site) consists of a groundwater plume containing volatile organic compounds (VOCs),…
CONVENTIONAL TRICKLING FILTER EFFLUENT QUALITY: PREDICTABILITY AND VARIABILITY
A survey conducted of eight Conventional Trickling Filter (CTF) plants showed that seven of them exceeded EPA secondary treatment regulatory…
Practical Application of the “C” in CMOM-Dynamic Hydraulic Modeling Reveals Challenges to Preventing Overflows
As the “C” in the emerging CMOM regulations refers to Capacity Assurance of a collection system, many communities are taking…