In recent years a number of designers seem to have eliminated rectangular clarifiers form their design repertoires. Many others never…
This investigation, conducted at 24 full-scale activated sludge wastewater treatment plants, quantified the extent of floc breakup resulting from the…
Most engineering firms have developed specifications and standards that become the bible for project-related design issues–and no two firms are…
Are your effluent BOD5 results significantly higher than your suspended solids results? Are you having trouble meeting your BOD5 permit…
A petroleum refining complex was required to upgrade its wastewater treatment system to meet newly adopted toxicity requirements and to…
Effluent variability is one of the factors considered by industrial and municipal dischargers in setting wastewater treatment facility design goals….
The realization that an existing, deteriorated pipe is a valuable asset that can be restored has led to the rapid…
The state of development of process modeling is assessed from the practitioner’s point of view. The history of model development…
In 1989, the Metropolitan Wastewater Management Commission (MWMC) of Eugene/Springfield, Oregon, put their new sledge management facilities into operation. Designed…
On-site encapsulation is a technique that has been used for centuries as a method for managing and disposing of both…
There have been several extensive studies during the past few years to establish general design criteria of nitrifying trickling filters…
The condition of Lakeland, Florida’s concrete sewer had deteriorated to the point that emergency repairs to their Western Trunk Sewer…