DRINKING WATER TREATMENT – HYDROGEN PEROXIDE PRE-OXIDANT APPLICATION
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Introduction
The use of hydrogen peroxide (H2O2) as a pre-oxidant in municipal water treatment is well documented and has been practiced for over 15 years. Historical applications of H2O2 in drinking water have been for taste and odor control, hydrogen sulfide removal, iron removal and ozone enhancement/destruction. With the EPA Stage 2 Disinfectants and Disinfection Byproducts Rule (Stage 2 DBPR) coming into effect, more recent emphasis has been on the reduction of the formation of total trihalomethanes (TTHM) and haloacetic acids (HAA5).
Cloevis Biofilm Removal Service (Cloevis BRS) is an innovative technology offering that removes the biofilms that adhere to the inner surfaces of wastewater forcemain walls, including the underlying Sulfate Reducing Bacteria (SRB) that produce hydrogen sulfide. As a result, gaseous hydrogen sulfide (H2 S) production is eliminated. The treatment requires an initial conditioning period when the biofilm that harbors the SRB’s is removed, followed by maintenance treatments that are repeated as monitored lines show signs of SRB reformation.
The Cloevis technology, delivered as a turn-key, fixed-cost, full-service program, provides the following benefits relative to conventional sulfide control treatments:
Avoidance or minimization of onsite chemical storage
Independence from sulfide loading, retention time or oxygen uptake
No labor/maintenance requirement
Removal of sulfide odors for up to three weeks after treatment cycle
Elimination of methane production within the treated segment
No downstream adverse impacts due to residual treatment chemicals
Effective cost similar to caustic shocking and less than nitrate or iron salts
USP-OC31TM, CHLORITE OXIDANT BLEND, FOR SULFIDE AND ORGANIC ODOR CONTROL
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Introduction
USP-OC31 is a chlorite-based oxidant blend that is designed to efficiently and rapidly oxidize hydrogen sulfide and organic odors in wastewater collection systems, treatment plants (headworks, thickeners, dewatering operations) and industrial wastewaters. USP-OC31 is environmentallyfriendly and does not form chlorinated by-products, with the end-product being table salt (sodium chloride).
USP-OC31 Properties & Dosing
USP-OC31’s main active ingredient, sodium chlorite (NaClO2), is a fast-reacting oxidant (seconds) that provides immediate control of hydrogen sulfide and many other organic odors in collection systems, treatment plants and industrial wastewaters, particularly in solids processing operations. Unlike hypochlorite, USP-OC31 does not react with ammonia and does not form chlorinated organics. USP- OC31 oxidizes hydrogen sulfide according to the following equation…
NOX EMISSIONS CONTROL AND SURFACE FINISHING WASTEWATER TREATMENT
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Introduction
Wastewater streams and process baths at metal surface finishing operations can be very challenging to effectively treat. USP Technologies (USP) can help metal finishers and processors by characterizing each unique situation and matching it to our technically sound and proven options for NOx emissions control in stainless steel and titanium pickling operations, as well as for treatment of organic compounds, cyanide and a range of wastewater contaminants…
PERACETIC ACID FOR INDUSTRIAL, OIL & GAS APPLICATIONS
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Introduction
Peracetic Acid (PAA) is an organic peroxide compound with the formula CH3CO3H. It is environmentally friendly as it hydrolyzes to acetic acid and hydrogen peroxide in water. It is a broad-spectrum biocide with a fast reaction time in minutes and leaves no harmful by-products.
Peracetic acid is a strong oxidant and disinfectant with oxidation potential higher than that of chlorine or chlorine dioxide. PAA is available in the form of equilibrium mixture which also contains hydrogen peroxide, acetic acid (vinegar) and water as shown by the following equation…
NITROGEN OXIDES (NOX) ABATEMENT WITH HYDROGEN PEROXIDE
Introduction
Nitrogen oxides are major pollutants in the atmosphere and are a precursor to acid rain, photochemical smog, and ozone accumulation. The oxides are mainly nitric oxide (NO) and nitrogen dioxide (NO 2 ), both of which are corrosive and hazardous to health.
Stationary Source Focus
With the use of catalytic converters on automobiles, the initial regulatory focus of controlling mobile NOx emissions has reached the point where further restriction has become economically impractical. Consequently, the stationary sources of NOx emissions are now being subjected to more stringent standards in many areas of the U.S . These stationary sources include nitric acid manufacturing plants, manufacturers of nitrated materials such as fertilizer and explosives, and industrial manufacturers such as metallurgical processors, glass manufacturers, cement kilns and power generators where high processing temperatures are used. Because of the environmental concerns posed by air pollution, a great deal of research and money has been expended to develop methods for controlling NOx emissions…
Read MoreDownload NOx-Tech-Bulletin-17-LR (pdf)
ELIMINATE VISUAL EMISSIONS DURING START-UPS
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NOx Control with Hydrogen Peroxide
This proprietary technology introduces diluted H2O2 into the NOx absorber during start-ups to reduce emissions of NOx compounds such as NO and NO2. Removal of >90% is achieved, with the NOx being converted to highquality HNO3 product. The process is offered under license and is designed to minimize risk and disruption to operations. The license includes chemical storage and feed equipment, piping and instrumentation, process safety controls, installation and maintenance, training and documentation as well as H2O2 supply service…
[vc_row][vc_column][vc_column_text]Introduction
Landfill leachate can be very challenging to effectively treat as it is often characterized by significant odor, high COD, phenols and dissolved metals. In some cases, leachates can be toxic or inhibitory to downstream biological treatment systems. Furthermore, due to the variability of landfill material, weather patterns and content age, leachate constituent levels can change nover time, adding to the complex nature of treatment. Landfill operators contend with additional challenges stemming from general public odor complaints, discharge compliance and fines or surcharges from municipal wastewater treatment plants. USPTechnologies (USP) can help landfill operators by characterizing each unique leachate stream and matching it to our technically sound options for liquid phase treatment for leachate odor control, phenols, metals and high COD or toxicity…
Remediation of Pesticides and Petroleum Products | Total Chemical Management
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Total Chemical Management, Specialized Equipment Design
US Peroxide was contracted to provide total chemical management including chemicals, logistics, field services, equipment mixing and storage systems as well as chemical management oversight for the remediation of pesticides and petroleum products at a site located in California.
Due to significant dry chemical requirements as well as a large square footage application treatment area, this project included the need to design a novel way to spread supersack quantities of chemical in a controlled manner. The resulting system pictured uses a device at the end of the spreader to accomplish this task. Equipment requirements included three 3-ton capacity dry material spreaders, all terrain tractors and a 3-ton all-terrain forklift system to distribute dry chemicals.
US Peroxide can supply a wide range of chemicals such as hydrogen peroxide, ferrous sulfate, sodium persulfate, sodium percarbonate, acids and others commonly used for ISCO or other remediation technologies. These chemicals are available in wet (drum, tote, bulk) or dry (bags or super sacks where applicable) form. USP works with remediation companies to develop a cost effective, logistically optimized, and reliable chemical management program based on project specific chemicals, quantities, usage rates and other project constraints.[/vc_column_text][/vc_column][/vc_row]
Rapid Response Project
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Rapid Response for Environmental Treatment Challenges
USP Technologies is uniquely positioned to rapidly respond to your environmental treatment challenges. USP combines experienced applications and equipment field support with a large inventory of storage systems and pumping modules to respond quickly to time sensitive water and wastewater treatment situations.
USP Technologies’ Rapid Response Program consists of timely and effective treatment options for customers. USP maintains equipment inventory and has access to many chemical terminals throughout North America that allows for quick response. USP can respond to customer needs with a combination of technical and applications support, safety and project reviews, equipment supply, installation and service as well as multiple chemical programs. These program elements have proven to be of great value to customers.[/vc_column_text][/vc_column][/vc_row]