No Chemicals Required
The Metropolitan Wastewater Treatment plant in St. Paul was the first Minnesota plant to be converted to biological phosphorus removal…
New Process Design Procedure for Dealing with Variable Trickling Filter Effluent Suspended Solids
Based on a survey which showed that seven of eight conventional trickling filter (CFT) plants exceeded the U.S. Environmental Protection…
More Realistic Soil Cleanup at Standards Using Dual-Equilibrium Desorption Model 918
The desorption of contaminants from soils/sediments is one of the most important processes controlling contaminant transport and environmental risks. None…
Mitigation the Cost of Dentrification in Fixed Film Plant with Nitrate Recycle
This paper describes the extensive modeling carried out to determine the design expansion requirements for each unit process of the…
Minimising Odors for a New Biosolids Program
The City of Toronto, Ontario, operates four wastewater treatment plants (WWTPs) in an urban environment of 2.5 million people. At…
Miami-Dade Water and Sewer Department Disinfection Demonstration
Miami-Dade Water and Sewer Department (MDWASD) conducted pilot testing of alternative disinfection technologies at the MDWASD South District Wastewater Treatment…
Measuring Nitrification Rates for Big Payouts
A three year-long investigation sponsored by the Water Environment Research Foundation and many supporting agencies addressed the need for simple…
Mazimizing Energy Recovery Through Distester Gas Management System Enhancement.
Advanced anaerobic digestion practices and maximum energy recovery call for a digester gas system that reliably allows for complete biogas…
Maximizing Methane
A Georgia treatment plant intends to test a new method for optimizing the use of digester gas to generate power….
Maximising the Performancae of Flotation Tickeners.
Dissolved air flotation thickeners are not only a well-established technique – they are still one of the most efficient. John…
Managing Fats, Oil, and Grease from the Food Service Industry
Fats, oil, and grease (FOG) have long caused operational problems for wastewater collection and treatment systems. Accumulation of FOG in…
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:…