Case Studies

Lone Star Ozone

Odor and color are problems for many rural water providers. High reliance on well water increases the chances of encountering sulfur, tannins and other contaminants, while small ratepayer bases make it difficult to afford expensive treatment systems. Like many rural water providers, the Four Way Special Utility District in Angelina County, Texas, was concerned about total trihalomethanes (TTHM), color and odor problems. The district operates a 900-gpm water well with a 750-gpm pump.

A Clear Solution

Well Number 3 in eastern Angelina County, Texas, flows at 750 gpm and serves over 2,000 rural customers. The Four Way Special Utility District (SUD) faced aesthetic issues with hydrogen sulfide (H2S) and color due to the presence of tannic acids in the source water.

Mississippi Plant Uses In-Line Aeration to Meet DO Requirement

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.

Shopping Center Avoids Litigation by Resolving Sewer Odor Problem

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

California Winery Turns Up Nose at Odor

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.

Alabama Waste Treatment Plant Quietly Quells Sludge

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.

Minnesota Lagoon Odors Neutralized

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.

Michigan Plant Clears the Air

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.

Singular Solution for Ohio Plant’s Flooding Problem

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.

California Carrot Plant Combats Fetid Lagoon

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.