Host: Antoine Walter
Guest: Jim Lauria | VP Sales and Marketing | Mazzei Injector Company
Category: 🤖 Technology
Podcast’s Essential Bites:
[13:07] “When ozone was first introduced [fine bubble diffusers] was the way to put ozone into water. And then in the late 80s, early 90s, they found out that they could produce much higher ozone concentration. 10%, 12%, 16%, even approaching 20% now. […] In the past, they were getting 2% to 3% using air-fed generators. Now they found that if they used oxygen fed generators, pure oxygen, […] they could get much higher percentages. And when that started, they also found that they needed a better way to get the ozone into the water. And that's when sidestream injection really started coming into play. […] That's been the trend since the mid 90s to the early 2000s and even up to now.”
[15:15] “Fine bubble diffuser is basically, on the bottom of a basin, you've got these either ceramic or membrane type of units that bubble up small bubbles. They create small bubbles of ozone. And as they rise in the tank, 20 feet, 30 feet, […] they have intimate contact with the water and they dissolve the ozone into the water. And it takes time […] and depth.”
[15:48] “With sidestream injection, you're basically taking a side stream […], maybe 10%, with a pump off the main flow. And then using a Venturi injector, you're pulling in with a Venturi, basically, there's a restriction in the inlet and outlet and because of this restriction of velocity increases, and it creates a suction. And it pulls in the gas in and mixes in with a side stream making a concentrated ozone solution. But then you have to mix that concentrated ozone solution back into the main flow. So you use that with a series of nozzles either in a pipeline flash reactor […] or you can do that in a basin.”
[19:51] “One of the best ways to do it is if there's already basins […] that have been used as fine bubble diffusers or some other treatment technology. You already have the concrete and structural installation there, you might as well use it. But if you don't, […] the pipeline flash reactor takes up so much less space. In fact, one of our customers […] put it on the ceiling in one of their plants, so it took up no footprint. And this way, you've got less footprint, less structural concrete and steel. Footprint in terms of space, but footprint also in terms of the amount of civil works that are required to put this in place.”
[43:23] “The majority [of plants that use ozone systems are] drinking water plants […] [for] disinfection, color removal, iron and manganese […]. [However], now it’s being used for water reuse. The trend is in that direction. […] Ozone has many good applications for reuse, and needs higher concentrations of ozone, of course, because you're talking about […]breaking down the organics, so much more concentration of ozone that needs to be put in the water to do the job.”
[48:39] “Maybe ozone could be more effective if you removed a certain level of other organics that were in that wastewater that ozone would react with […] through [a] prior treatment system. And then ozone could target it without removing […] the ones where ozone didn't react with. That's the kind of innovation that we need to think about. And so pilot testing, modeling, all these things are really good things to be able to discover where ozone might have its best applications.”
Rating: 💧💧
🎙️ Full Episode: Apple | Spotify (Original Title: “Choosing the Best Suited Ozone Diffusion System. What does Data Say?”)
🕰️ 1 hr 1 min | 🗓️ 08/11/2021
✅ Time saved: 59 min
