The treated effluent from all wastewater treatment plants across the country must meet local dissolved oxygen standards before discharging into receiving waters. A municipal facility in southern Mississippi, designed by Carollo Engineers, features a pressurized effluent line that discharges into a local river. Since the line is pressurized, the standard method for increasing dissolved oxygen—a cascade—is not a valid option.
Unpleasant odors can be retailers’ worst nightmares, as they give customers tangible reasons to stay away from the affected outlets. When faced with legal action that arose from the presence of foul smells, one California mall developed a thoughtful solution with the use of Mazzei products.
Mall-ed by the smell
One of the most important features of a wine is its aroma. Unfortunately, wineries sometimes have to combat olfactory ordeals in order to keep their facilities smelling pleasant.
A contractor needed a quiet, efficient aeration system for a 250,000 gallon per day field-erected wastewater treatment facility. This plant was to be located adjacent to a school, and a restriction on ambient noise at the location meant that the facility had to use a quiet aeration process.
A central Minnesota plant was forced to find a new aeration solution when its existing system proved inefficient and expensive. Thankfully, the Mazzei Injector aeration system proved to be precisely what the facility needed.
Typically, an increase in size is seen as a good thing for a company. However, growth can create new problems that demand thoughtful solutions, as one Michigan-based firm recently discovered.
The LeSourdsville Regional Water Reclamation Facility in Butler County, Ohio, was faced with a predicament: What could be done about floodwaters that compromised the plant’s cascade basin? Fortunately, a solution was found, and it utilized Mazzei technology.
Grimmway Farms is one of the largest producers of carrots in the world, and when its Kern County, Calif., packing plant was faced with an aeration problem in its lagoon, it turned to Mazzei products for help.
The plant was having severe odor problems due to septic conditions in its truck washout water holding lagoon. In addition, low nutrient and nitrogen levels in the wastewater compromised its usefulness for crop production.