Ultra-S3 is an oxidizing system that quickly and effectively breaks down hydrogen sulfide gas (H2S) into elemental sulfur and water and breaks down other recalcitrant organic compounds into primarily carbon dioxide and water.
Over the past decade, Ultra-S3 has been widely used along with an oxidizer (commonly hydrogen peroxide) as a cost-effective way to eliminate the smell emitted by H2S, keep H2S at acceptable levels, and limit the costly deterioration and corrosion it causes to facility infrastructure.
Ultra-S3 is currently used around the world in facilities including landfills, wastewater treatment facilities, wastewater retention ponds, food processing plants, chemical plants, paper mills, and sewage lines.
Ultra-S3 and an oxidant, generally hydrogen peroxide (H202), are injected separately into the waste stream or over the target area containing the hydrogen sulfide gas (H2S) or other recalcitrant organic compounds.
When combined with an oxidant, Ultra-S3 produces hydroxyl radicals, which are highly efficient oxidizers that break down difficult chemical bonds and remediate organic compounds to non-detectable levels.
For a more detailed look at Ultra-S3, its applications, and case studies, please visit Ultra-S3.com.
One Northern California wastewater treatment plant used Ultra-S3 to eliminate a serious hydrogen sulfide problem. Although H2S is pungent in low concentrations, it paralyzes the olfactory nerve at levels above 100 ppm to render workers oblivious to the danger.
The wastewater in this plant had hydrogen sulfide levels of 7–10 ppm, which produced concentrations in the sewer air averaging 102 ppm and peaking at 250 ppm. The objective of the S3 treatment was to reduce the H2S concentration in the air to an acceptable level (less than 10 ppm).
The end result? The Ultra-S3 process worked rapidly with most of the treatment being accomplished within 3 minutes of contact time. The treatment reduced the hydrogen sulfide concentration in the air to less than 1 ppm, a reduction of approximately 1200 pounds of hydrogen sulfide.
To get S3 working for you, contact us.
* UltraTech can help source components 2-4 if needed
| Oxidant | Relative Oxidation (Potential Power) |
| Ultra-S3 | 2.10 |
| Ozone (O3) | 1.50 |
| Hydrogen Peroxide | 1.30 |
| Permanganate | 1.20 |
| Chlorine Dioxide | 1.10 |
| Chlorine Gas | 1.00 |
| Oxygen (O2) | 0.90 |
| Iodine | 0.54 |
| What are the disadvantages of other technologies/solutions? | |
Source: http://www.epa.gov/oust/pubs/tum_ch13.pdf* *Compound name “Hydroxyl Radical” = Ultra-S3
NOTE: Unless otherwise noted, all listed product measurements are L x W x H, outside dimensions, and for a single unit where quantity is more than one.
| Part # | Model | Quantity | Weight lbs. (kg) |
|---|---|---|---|
| 4502 | Ultra-S3 - 55 Gallon Drum | One (1) 55-Gallon Drum | 501 (227.2) |
| 4506 | Ultra-S3 - 275 Gallon Tote | One (1) 270-Gallon Tote | 2540 (1152.1) |
Ultra-S3 is typically treated in locations where there is excellent mixing (at the suction or discharge of a pump is the ideal location) where the water will become aerobic within 4-6 hours after treatment. Ultra-S3 destroys hydrogen sulfide on contact as long as the Ultra-S3 and hydrogen peroxide are able to physically mix and contact the hydrogen sulfide. In a typical situation, for every kilogram of hydrogen sulfide that needs to be treated per day, you will need 3.75 liters of 35% hydrogen peroxide or 2.5 liters of 50% hydrogen peroxide along with 0.4 liters per day of Ultra-S3. If you can provide us with the average daily amount of hydrogen sulfide in the water phase of your waste stream, along with the total volume of water processed per day, we can calculate budgetary estimates for the amount of hydrogen peroxide and Ultra-S3 needed to treat your system.
Mixing time is not really a quantifiable factor, unfortunately. This is mainly due to the fact that when you get on an actual job site, the ability to control mixing of a large amount of wastewater is limited. The best places to dose are locations that ensure the best mixing. Examples of this could be a force main line where there’s a lot of volatility in the water, or in a mixing box where multiple lines converge, or at the suction of a lift pump.
Ultra-S3 works very well with a variety of other chemicals. It’s typically hard to change its path of oxidizing organics. The only way this can be done is if you mix it into an environment where the pH is too high or low. So outside of strong acids and bases (that have an overall influencing factor on the wastewater), it seems to play quite well with others. One thing that does need to be taken very seriously is the materials that come into contact with the peroxide. There are a variety of safety protocols for hydrogen peroxide, and it is important to use stainless steel and/or unreactive plastics with a high concentration of hydrogen peroxide.
It is important to dose Ultra-S3 and hydrogen peroxide into the waste systems separately. If Ultra-S3 is mixed directly with hydrogen peroxide, it will generate a highly exothermal reaction that can be very volatile in closed systems such as pipes or pumps. As long as they are dosed independently into waste streams that can dilute the Ultra-S3 by at least 100:1, this will be mitigated. In normal operation, the dilution rate will be well below the 100:1 ratio.
It can, though it would be wise to ensure that you have a solid 100:1 ratio of wastewater to Ultra-S3. It may be that you can go lower than 100:1, but you don’t want to approach the limit where the exothermic portion of the reaction is noticeable in the treatment. Typically this is not a problem because you’re treating such large quantities of wastewater.
We have used Ultra-S3 in activated sludge plants. Generally, sludge is very high in BOD, and any peroxide added to a sludge system is used up within seconds. The advantage of Ultra-S3 is that if mixed quickly enough with the peroxide (ideally at the suction of the sludge transfer pump to the centrifuge or dewatering press) it can keep the peroxide focused on the sulfide long enough to destroy the sulfide, which will happen very quickly (within seconds).
Because Ultra-S3 is an organic, not hazardous iron-based reactant, it can be confidently discarded without impact to the nutrient or metal discharge permitting process. Additionally, the amount of elemental sulfur generated by the Ultra-S3 process is so small it is not even noticed in the downstream systems of the plant.
It will lower them to some extent as it eliminates sulfide and other organics in the water. We are not sure how low it will bring them, it will need to be tested. Ultra-Microbes may help.
Fenton’s reagent is the use of an iron catalyst with hydrogen peroxide to oxide-organic contaminants in waste streams. The Fenton’s reagents also utilize hydroxyl radicals in the oxidation process. One main difference is that Fenton’s reagents only work at low pH ranges (below pH 4.5 and optimally at pH 3.0), and have little or no viability to oxidize contaminants at neutral or alkaline pH ranges. Ultra-S3 only works at neutral to slightly alkaline pH range (between pH 6.3 – 8.5 and ideally at pH 7.8), and works at a much higher efficiency than Fenton’s reagents, due to the proprietary oxidation mechanism that Ultra-S3 utilizes with hydrogen peroxide. Fenton’s reagents and Ultra-S3 are similar in concept but very different in practice and performance.
Peristaltic pumps are typically used to pump clean/sterile or aggressive fluids because cross contamination with exposed pump components cannot occur. In this case, the hydrogen peroxide would only contact the tubing, which is cheap and easy to come across in HDPE (and seals and O-rings are not an issue)… And hydrogen peroxide requires HDPE or stainless materials of construction due to its corrosive and aggressive nature. Peristaltic pumps are used pretty often in industrial applications. They generally provide the longest possible tubing lifetime and a constant pulse-free flow.
Pumps are specific based on flow rate. Peristaltic pumps with stainless or HDPE wetted parts. We can spec and provide pumps but we recommend sourcing it locally. We have found Qdos Pumps to be user-friendly and are available internationally, with local distributors. These are easy to maintain and average about $1,000 USD. Here is the link to their website:
Treating wastewater with Ultra-S3 and hydrogen peroxide at typical dosage rates (parts per million of each chemical) will not have any adverse effect on the bacterial populations downstream. Unless the treatment levels were raised by 1,000x, the amount of peroxide in the system would be well below the limit where any harm would occur.
EAR99 (the product does not have any export controls placed upon it).
Ultra-S3 freezes at -10C (14F).
UltraTech does not sell hydrogen peroxide – you would need to source it from a local chemical company in your area.
This product may not address any specific regulations but if you have any questions, we’re here to help.
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