Minimizing the Impact of Nitrification in the BOD5 Test
Are your effluent BOD5 results significantly higher than your suspended solids results? Are you having trouble meeting your BOD5 permit…
Petroleum Effluent Toxicity Reduction–From Pilot to Full-Scale Plant
A petroleum refining complex was required to upgrade its wastewater treatment system to meet newly adopted toxicity requirements and to…
Designing Treatment Systems to Accommodate Process Variability
Effluent variability is one of the factors considered by industrial and municipal dischargers in setting wastewater treatment facility design goals….
Trenchless Techniques Improve Pipelines
The realization that an existing, deteriorated pipe is a valuable asset that can be restored has led to the rapid…
Wastewater Treatment Process Theory and Practice: The Emerging Convergence
The state of development of process modeling is assessed from the practitioner’s point of view. The history of model development…
Interesting Discoveries with a Low-Tech Sludge Lagooning and Air Drying Operation
In 1989, the Metropolitan Wastewater Management Commission (MWMC) of Eugene/Springfield, Oregon, put their new sledge management facilities into operation. Designed…
Closure of Hazardous Waste Sites Utilizing On-Site Encapsulation
On-site encapsulation is a technique that has been used for centuries as a method for managing and disposing of both…
Discussion of: Nitrification Performance of a Pilot Scale Trickling Filter
There have been several extensive studies during the past few years to establish general design criteria of nitrifying trickling filters…
Rehabilitating Lakeland’s Western Trunk Sewer
The condition of Lakeland, Florida’s concrete sewer had deteriorated to the point that emergency repairs to their Western Trunk Sewer…
Iona Outfall Plume Characterization Study
Field studies were conducted in August 1988 to verify the performance of the new deep sea outfall for the Greater…
Suggested Methods for Calculating and Interpreting Calcium Carbonate Saturation Indexes
Calcium carbonate (CaCO3) saturation indexes are commonly used to evaluate the scale-forming and scale-dissolving tendencies of water. Assessing these tendencies…
Integrating Water Conservation into Total Water Management
Water suppliers are under increasing pressure to find and develop additional sources to deep up with growing demand, but the…