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Wastewater Odors Applications

  • Organic Solids Degradation

    Municipal and Industrial WWTP, Sewage Lines & Pumping Wells, Fish and Prawn Ponds and Septic Tanks and Mobile Toilets.

    By Cleveland Biotech Ltd. based in Stockton on Tees, UNITED KINGDOM.

  • Chlorine dioxide for municipal wastewater treatment industry

    Wastewater Deodorization: The formation of hydrogen sulfide often poses a problem for municipal wastewater treatment.  Chlorine dioxide, a powerful oxidant, can be effectively used to control noxious, irritating, or pungent odors from many operations.  Moreover, its unique selective properties permit more efficient application at a lower dosage and cost than chorine, hypochlorite, permanganate peroxide or ozone.

    By DuPont Chlorine Dioxide based in North Kingstown,, RHODE ISLAND (USA).

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    Odor Control

    We treat air streams to remove odors allowing industrial processes to be operated in compliance with local regulations and without causing a nuisance to neighbors due to odors and smells. Our technologies have been applied to a range of processes including: Waste treatment (municipal and industrial) Manufacture of flavors Food processing Waste water treatment (Municipal and industrial) Chemical manufacture Rendering

    By Babcock & Wilcox MEGTEC based in De Pere, WISCONSIN (USA).

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    Air Pollution for General Industrial Applications

    With 30 years` experience, and more 300 operational, industrial air pollution plants, ERG has an extensive reference list to draw on. So even if your application does not fit neatly into one of the categories described in our portfolio of experience, we are likely to have relevant experience to help us solve your air pollution problem.

    By ERG (Air Pollution Control) Ltd based in Horsham, UNITED KINGDOM.

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    Elimination of mercaptan odor for wastewater lagoons

    Wastewater lagoons are utilized to collect and stabilize wastewater. Approximately one third of all U.S. secondary waste treatment facilities employ some type of pond system. Lagoons can become septic, or contain compounds that product significant odors.

    By Carus Corporation based in Peru, ILLINOIS (USA).

  • Headworks Odor and Corrosion Control Using Hydrogen Peroxide

    Hydrogen Peroxide typically controls odors and corrosion at treatment plant headworks by direct oxidation of hydrogen sulfide (H2S) within the wastewater. In the direct oxidation mode, H2O2 is applied to the wastewater 5-30 minutes prior to the point where the odors are being released, generally as the wastewater line enters the plant boundary. The efficiency of hydrogen peroxide treatment depends upon the available reaction time, the level of iron in the wastewater (reaction catalyst), wastewater pH and temperature, and the initial and target levels of H2S odor. Under optimal conditions, effective dose ratios are 1.2 - 1.5 parts H2O2 per part dissolved sulfide, and can be reliably estimated through beaker tests. H2O2 + H2S → S0 + 2H2O Frequently, control of odors through the primary clarifiers is wanted. In such case, the mechanism of control is both direct oxidation of H2S (as it rises from the solids blanket), and prevention of odor generation (by supplying dissolved oxygen). Control is typically achieved with a booster dose of 1-2 mg/L H2O2 added to the clarifier influent. Higher doses or alternate modes of addition may be required in cases where: 1) hydraulic retention times are > 2-3 hours; 2) solids blanket depths are > 1-2 feet; 3) soluble BOD levels are > 200-300 mg/L; or 4) waste activated sludge is co-settled with the primary solids. 2H2O2 → O2 + 2H2O

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

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    Chemical Water Treatment for waste water

    Kurita develops products and solutions for the waste water treatment to improve the water quality and respect the legislation and the environment. Due to increased environmental sensitivity and today’s legislative restrictions, most industrial plants which use water already have wastewater treatment plants. The different Kurita Technologies carefully adapts to the needs of each plant through the optimization and improving the water quality and reducing your operating costs. Improve the water reuse in your facilities and work closely with our customers to reduce the discharges to a minimum level is one of our main targets.

    By Kurita based in Ludwigshafen, GERMANY.

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    Applications and Air Pollutants Removed in Wastewater Treatment Operations

    Removing hydrogen sulfide, mercaptans and other organosulfur compounds from wastewater treatment plant odor causing processes and areas. Stripping of ammonia and other VOC compounds.

    By Bionomic Industries Inc. based in Mahwah, NEW JERSEY (USA).

  • Odor Control in Sludge

    By The Definitive Deodorant Company based in North Kansas City, MISSOURI (USA).

  • Odor Control in Air Scrubbers

    By The Definitive Deodorant Company based in North Kansas City, MISSOURI (USA).

  • Odor Control in Wastewater Lagoons

    By The Definitive Deodorant Company based in North Kansas City, MISSOURI (USA).

  • Odor control solutions for public commercial buildings

    Every city and town in North America, South America, Europe, Middle East and the Pacific Rim is a target rich environment and susceptible to odor control concerns. Look no further then the nearest apartment complex, hospital, hotel, fast food outlet or retirement home. Shopping malls, grocery stores and entertainment complexes are also likely clients and application areas. Stop to consider the number of food processors, manufacturing/industrial operations, waste haulers, landfill or wastewater treatment sites in your area where persistent and nuisance odors are a constant public concern.

    By Ecolo Odor Control Technologies based in Toronto, ONTARIO (CANADA).

  • Odor Scrubbers Applications with Hydrogen Peroxide

    Hydrogen Peroxide as a Replacement for Sodium Hypochlorite Hydrogen peroxide may be used in both mist scrubbers and packed tower scrubbers as a replacement for sodium hypochlorite (bleach). Like bleach, the process involves two concurrent mechanisms: 1) absorption of the odors (H2S) into the alkaline scrubbing solution; and 2) oxidation of the absorbed sulfide in solution. Step 1: H2S + NaOH → NaSH + H2O Step 2: 4H2O2 + H2S → H2SO4 + 4H2O Typical dose ratios are 5 parts H2O2 per part H2S or, when used in place of bleach, one gallon 50% H2O2 for every 10 gallons of 15% sodium hypochlorite (NaOCl). This generally translates into a break-even cost scenario. Sufficient caustic soda (NaOH) is added to maintain a pH of 10.0 - 10.5 in the scrubbing solution. There is also in practice a process which uses H2O2 in series with bleach to scrub composting odors. This process relies on a series of three packed tower scrubbers: the first is a pH neutral water wash (to remove ammonia and amine odors); the second uses a conventional caustic/bleach solution in which the bleach is purposely overdosed (to oxidize the complex organic sulfur odors); and the third uses a caustic/H2O2 solution (to remove the unreacted chlorine vapors carried over from the second stage). H2O2 + HOCl → HCl + H2O + O2 Typical dose ratios are 0.5 parts H2O2 per part hypochlorite (OCl-), with sufficient caustic soda (NaOH) added to maintain a pH of 8.5 in the scrubbing solution.

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

  • Odor Control in Lift Stations

    By The Definitive Deodorant Company based in North Kansas City, MISSOURI (USA).

  • Odor Control in Sewage

    By The Definitive Deodorant Company based in North Kansas City, MISSOURI (USA).

  • Gravity Main Sulfide Odor Control with Hydrogen Peroxide

    Gravity main sewer systems include major trunk lines and the tributaries that feed them. Hydrogen sulfide (H2S) odor builds up in the collections system as the flows collect from upstream reaches and become larger, deeper and more septic (oxygen depleted) in the downstream reaches more near to the wastewater treatment plant. In general, most of the more significant hydrogen sulfide odor and corrosion control problems occur in the major trunk systems segments conveying flow to the plant. Therefore, selection of sulfide treatment for gravity systems has several options depending mainly on: Duration of control required Degree of septicity (oxygen depletion) Location of target control points or "hot spots" Location of available dosing points upstream of "hot spots" Availability of civil infrastructure and utilities Sensitivity to hazardous chemicals

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

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    Odor control for wastewater treatment processes

    Natural odor control for wastewater treatment processes. Industrial and municipal wastewater treatment generates odors that can be strong, persistent, and a nuisance to employees, residents, businesses, and industries located near the wastewater treatment plant.

    By OMI Industries (OMI) based in Long Grove, ILLINOIS (USA).

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