Reduce Lift Station and Vent Odor Problems with Ozone

Lift station using ozone for pre-treatment and odor control

Ozone injected directly into the sewer pipe in the lift station controls vent odor problems, reduces monthly chemical costs, and pre-treats sewage coming into the treatment plant. I recently visited one of our sites using ozone for lift station and vent odor control, and then spent some time doing research to learn more about this application. The first thing I began to realize is how complex water and sewage treatment is. Treatment operators face a multitude of variables and different products and approaches to cleaning up water. A successful solution depends on a careful study of the particular situation and close observation of results. Solutions to problems in a particular situation  often require a combination of approaches. The bottom line is cost, safety, effectiveness, and environmental impact.

The following are a couple of examples of ozone use for odor reduction in wastewater applications:

Easy To Digest: H2S Removal Rids City Of Lift Station Odors” By Richard Wiseman, Street & Sewer Superintendent, City of Taylorville  published in

Application of Ozone and Oxygen to Reduce Chemical Oxygen Demand and Hydrogen Sulfide from a Recovered Paper Processing Plant”  by Patricia A. Terry  Research Article  International Journal of Chemical Engineering  Volume 2010, Article ID 250235, 6 pages

Oxidation Technologies specializes in integrating ozone into existing systems. We also offer custom built rental equipment for pilot tests to help determine if ozone a good fit for your situation.

At the particular site I visited, sewage is being pumped over 15 miles. Without treatment, hydrogen sulfide gas is generated from the anaerobic conditions within the pipe. Gasses are vented at various points along the pipe often leading to odor problems. The idea is to provide the pipeline with sufficient oxygen to prevent anaerobic activity. Currently this site is using a combination of Bioxide and ozone to control odor problems. Bioxide is a calcium nitrate based liquid formula which creates a thriving environment for bacteria that remove dissolved hydrogen sulfide and prevents its formation.  The liquid solution is metered into the sewage main at rates from 1 to 8 gallons per hour depending on sewage flow rates and ozone use. Ozone gas also provides oxygen needed by the aerobic bacteria helping to break down the sewage. Ozone destroys the odor causing bacteria, breaks down odors and organic material as ozone releases its energy and transforms back to oxygen. Both ozone and Bioxide provide chemical free solution with minimal residual byproducts.

Ozone comes with a higher startup cost due to the ozone generating equipment investment, but lower long term costs. Proper application and integration reduces the need for other treatment costs. A combination of treatment options is often needed to address the complexities of water treatment and variations in treatment demand throughout a year. Oxidation Technologies will custom design a system to fit your specific needs and provide routine maintenance to keep it running effectively.

Mobile truck offers mobile ozone odor removal system

A few years ago we helped a pair of brothers outfit a mobile truck with an ozone generator, ozone monitor, exhaust fan, and control system to automate an ozone odor control system.  Below is a great news article done on them by a local news station.

PITTSBURGH (KDKA) — After a hot practice or a hard-hitting game, a high school locker room can be, well, odiferous.

“You don’t even have to be in the locker room to be able to smell some of the odors that come out of there, so yeah, it can get pretty raunchy, absolutely,” says Vince Sortino, athletic director for the Baldwin-Whitehall School District.

And those odors can be a warning sign of something more serious.

“Odor is the tell-tale sign of microbes. Odor is the result of microbes perspiring and breathing and releasing their own odors,” says Adam Rice, a local pharmacist. “So when you smell something, there are germs causing that odor.”

Already this year, some schools have had outbreaks of Staph, MRSA, and other skin infections.

“I think it’s a concern for every school district, including Baldwin,” Sortino told KDKA money editor Jon Delano.

Baldwin is one of the first school districts to use Brozone, a mobile sanitizing van to clean sports equipment pioneered by pharmacist Adam and his brother, Mark Rice, a certified athletic trainer.

Ozone is just three oxygen atoms. You breathe O2. This is O3. The third oxygen, what it does is when it hits the bacterial cell wall, it destroys it, killing the bacteria,” explained Rice.

In 45 minutes, equipment is taken from locker to van, sanitized, and returned to the locker room for about $10 for each equipment set.

But as important as cleaning equipment is, students themselves are important to keeping things clean.

A key reason for these infections is lack of personal hygiene.

How about a clean T-shirt and clean undergarments every day, or a clean towel every day?

And what about a shower after every time you exercise?

Sports officials say students are less and less likely to take a shower, contributing to the problem.

It’s not like the old days, says Sortino.

“We all got a shower after every practice no matter what sport we were taking,” he says.

Today’s kids often race out without showering or re-use dirty T-shirts, making Brozone’s unique cleaning more important than ever.


For more information on the use of ozone in air treatment and odor control follow the link below:



Ozone used for odor control at wastewater plant

Ozone use for odor control is common and widespread.  Ozone is commonly used for odor control in casino’s, bars, hotels, and disaster restoration.  You can bet that if you have mold, or fire damage in your house, one part of the restoration process will be ozone treatment to remove the residual odors from the air.

Ozone is also used in some industrial applications and workplaces.  Rendering plants, meat packing plants, and pet food manufactures will use ozone to eliminate odor and make a more friendly work environment.  We have even been involved in applications where ozone is used in spice warehouses to reduce nuisance odors to neighbors.

Another common application of ozone over the years is waste-water disinfection.  Ozone can be used to reduce pathogens in waste-water prior to discharge.

An application gaining popularity is the use of ozone to reduce odor from waste-water.  This makes great sense as come waste-water treatment plants have a great deal of foul odor.  As the population of the earth grows the land near the waste-water plant becomes valuable, therefore encouraging operators to reduce foul odors from plants.

A great article on this application can be found below:

Ozone treatment proposed for some of Phuket’s stinking wastewater

PHUKET: Phuket Vice Governor Sommai Prijasilpa is pushing to install ozone generators throughout Rassada as a long term solution to wastewater problems in the area.

The vice governor yesterday afternoon inspected the new ozone generator used to treat water at Soi Paniang to determine whether the same machine could be used in Rassada.

“This machine was developed at Kasetsart University in Bangkok,” said Kanok Nakaew, chief of Research and Development at the Center for Energy and Environmental Engineering Laboratory at the university.

“It uses the advanced oxidation process, during which ozone is added to the water to kill off harmful bacteria such as coliform.

“Coliform can create negative effects if ingested by humans, including diarrhea and cramps.”

Mr Kanok added that water treated using the ozone generator meets the standards of the Pollution Control Department.

“The small ozone generator in Soi Paniang was installed as a short-term solution, but after seeing how it works I would like to see it installed throughout Rassada as a long-term water-treatment system,” Vice Governor Sommai said.

Mr Kanok explained that the treatment capacity of the generator varies according to the size of the machine.

“We would need to calculate how many machines are needed and how much water each one would be treating to know what kind of budget would be needed,” Mr Kanok said.

Rassada already has a 14-million-baht budget set aside for a long-term water-treatment system, said V/Gov Sommai, but it has not yet been decided which system to use.

“At our next budget meeting, I will propose ozone generators as a long-term wastewater solution. We should have an answer to the problem soon after,” V/Gov Sommai said.

Ozone odor control

Does it Work? Ozone Scent Control vs. Drug-Sniffing Dog

Article by Scott Bestul

Photo: Ralph Smith


You’ve had your head in the clouds if you’ve missed the de-scents-itizing hype of companies selling ozone-generating products. Ozone, they claim, contains an extra oxygen molecule that attaches itself to other molecules—say, b.o. molecules—and changes their structure. I’m eager to examine any deer hunting trend and, if necessary, flip it on its head. So I enlisted Chance, a highly trained police dog, to test ozone’s effectiveness. I’ve watched Chance’s nose zip through every sort of no-scent solution and was fully prepared for an ozone rout. But that’s not exactly what I got.


As a refresher: Our scent tests* are set up just like the training exercises used by K-9 officers. In the box test, police dogs are taught to find a “bad guy” hiding in one of six square boxes, spaced evenly across a large field. First, I sat in each box for a full minute, leaving behind a trace of human scent. Then it was up to Chance to find the member of my test team (hunting buddies Bob Borowiak, Tony Houdek, and Tom VanDoorn; and my father, Marv) who had climbed into one of the boxes. To start each trial, the handler took Chance off the leash, then ordered: “Find him!” At this command, I started my stopwatch and timed how long it took Chance to bust the hunter.


Test No. 1
Setup As a control test, Houdek jumped in a box, wearing street clothes.

Result Chance barked at his box after only 14 seconds.

Analysis Dogs performing this drill are marked down if they bark at the wrong box, so it’s not unusual for them to check every one—even if they get a strong whiff at one of the first. Chance’s head snapped around as soon as he passed Houdek’s box, but he checked every box before racing back. Had he reacted immediately to that first scent (as a whitetail would have), Chance could have cut this time in half.


Test No. 2
Setup To assess how a classic scent-control method would fare, ­VanDoorn, an expert whitetail hunter who swears by baking soda, took a shower in no-scent soap mixed with soda and then dressed in clothes washed in a similar combination, plus powdered with soda. He then rubbed more of it in his hair, on his socks, and in his boots.

Result Chance found VanDoorn in 19 seconds.

Analysis Chance showed no noticeable reaction the first time he ran past VanDoorn, and he checked all six boxes. Even though VanDoorn’s trusted in-the-field system cheated Chance’s nose for a few extra seconds, the difference wasn’t pronounced. I was a little surprised by this, given ­VanDoorn’s success at fooling deer—but not as surprised as VanDoorn.


Test No. 3
Setup Before the test, my dad took a no-scent shower and placed a ScentPurge 50, an ozone-generating unit designed to infuse clothing with ozone (, into a plastic tub that held his hat, boots, and two layers of camo clothing for 30 minutes. Dad dressed in these treated clothes just before entering the box.

Result Chance needed 42 seconds to find my dad.

Analysis The dog ran the entire course twice before marking Dad’s location. Though he did a slight head bob toward the correct box on the first lap, it was clear that the smell of ozone was confusing Chance. This was one of the most dramatic delays of Chance’s success in all the years we’ve conducted these tests.


Test No. 4
Setup Borowiak took a no-scent shower and dressed in hunting clothes that he’d washed in no-scent soap. He carried an Ozonics unit ­(ozonics​­hunting.​com) meant for mounting near a treestand or in a blind, ran it for a minute inside the box before the test began, and left it on throughout.

Result It took Chance 50 seconds to find Borowiak.



Even the handler was stunned at how long it took Chance to find Bob. Again, the dog ran two full laps before choosing the right box, and his first bark was tentative—like a guess. This was the most shocking result in four years of testing. We’d put Borowiak’s other no-scent regimens under Chance’s scrutiny before, and the dog had found Bob almost immediately. Yet the addition of ozone confused that nose for nearly one minute, which amazed everyone.

Nothing—not even ozone—will completely cover human odor. But if you can muddy the olfactory water for 50 seconds, that’s plenty of time for you to get a shot at a monster buck.

See the results of 3 more sniff tests here.

— Sniff Test A dog has about 200 million olfactory receptors; a deer, 297 million.