odor pollution Articles

  • How To Handle Chemical Spills & Cleanups

    FAST-ACT is designed for liquid and vapor chemical releases, but the chemicals it attacks does not need to be limited to what we traditionally think of as a chemical spill. Toxic and noxious chemicals can come from a variety of sources such as waste water, decomposition, household chemicals, and animals. Since FAST-ACT can be applied to liquid spill or vapor release enabling Emergency Responders ...


    By Fast-ACT

  • WEF/A&WMA Odors And Air Pollutants Conference March, 2010

    Abstract The application of biotrickling filters (BTF) has become commonplace for the removal of hydrogen sulfide and for the reduction of odors from air emissions in wastewater treatment facilities. Operation at a low pH of 1.5-2.0 provides an environment for rapid reproduction of thiooxidans bacteria and metabolism of hydrogen sulfide (H2S). An elimination capacity in excess of 90 gm of ...


    By Biorem Technologies Inc.

  • Reducing Odor and VOC Emissions

    The Montgomery County Regional Composting Facility (MCRCF) in Silver Spring, Maryland is designed to process 400 wet tons/day of lime amended biosolids from the Blue Plains Wastewater Treatment Plant (WWTP) in Washington, D.C. Recently, political pressures forced operations to cease at the MCRCF. Although the aerated static pile composting plant’s fate has not been completely decided, its owner, ...


    By BioCycle Magazine

  • Intensive odor - Case Study

    Example: Waste disposal for tanneries Similar tasks: Leather industry, fish cannery, bio-ethanol production, coffee roasters Various leather producers operating a tannery founded a joint waste disposal company which produces valuable proteins from the waste. The refining of the raw material and the treatment with ammoniac compounds produces malodorous waste gases. As these contaminants ...

  • An odor predictive model for Rendering applications

    Abstract The rendering process consists of crushing and heating animal remains to produce by-products. The U.S. produces approximately 30 billion pounds of inedible animal by-products annually, exporting a market value of US$ 1.5 billion. Benefits of the rendering process include reducing total waste material, and helping the livestock industry stay competitive over vegetable protein ...


    By Biorem Technologies Inc.

  • Monroe scrubber solves pollution and odor problems from a glass resin reactor at a synthetic fiber manufacturing plant

    Monroe scrubber solves pollution and odor problems from a glass resin reactor at a synthetic fiber manufacturing plant Challenge The plant was emitting about 6.0 lbs/hr of toxic fumes from their resin reactor at a temperature of 200oF. The emitted gases to be cleaned were from hazardous, gaseous pollutants such as phenol and formaldehyde, as well as dust particulate. The ...

  • Odor Control System Addresses Community’s Complaints

    The Customer: The Water Pollution Control Authority (WPCA) of the City of Bridgeport, Connecticut, operates two wastewater treatment facilities and maintains the city’s sewer system. The Customer’s Needs: After years of operating successfully in the community, the City of Bridgeport’s WPCA developed an odor problem at its East Side ...

  • Fitting Into the Neighborhood: Operating by Progressive Odor Management Plan

     Operating by Progressive Odor Management Plan Why would anyone build an $11 million composting facility designed to process an average of 130 tons/day of feedstocks less than one mile from luxury homes, a new high school, a golf course, fast food restaurants, a grocery store, and in an area with a vivid memory of a compost site that impacted the neighborhood and shut down due to odor ...


    By BioCycle Magazine

  • Food Processing: Odor Control in Edible Oil Processing

    Abstract: The problems with odor around a typical edible oil deodorizer are discussed in detail, and a three-step solution to eliminate these problems is presented. The three steps are a distillate recovery system which recovers most of the fatty acid in the deodorizer vapor discharge as a valuable byproduct, a closed loop barometric cooling water system which keeps the fatladen ...


    By CR Clean Air Group, LLC

  • Common Indoor Air Pollutants

    Is the indoor air you breathe healthy? According to the World Health Organization, 40% of all buildings pose a serious health hazard due to indoor air pollution. The EPA calls indoor air pollution the #1 pollution problem inAmerica. The following is a list of common indoor air pollutants: Dust, Pollen, and Other Allergens Chemical Fumes and Vapors Mold and Fungus Toxic ...

  • Mercaptan Odor Control - CAIROX® Potassium Permanganate

    In municipal and industrial waste treatment, hydrogen sulfide is not the only offensive gas generated from anaerobic decomposition. Mercaptans (RSH) are the organic equivalent to hydrogen sulfide and more odorous at 1/1000th the concentration. Mercaptans are naturally occurring from the degradation of sulfur containing organics (proteins, etc.). A table of commonly found mercaptans is presented ...


    By Carus Corporation

  • Odorant screening and possible origin analysis of odor episodes in one reservoir in northern China

    Odorous drinking water problem occurred repeatedly in one city in northern China in recent years. The uniqueness of this odor episode lay in two aspects: (1) the odorous chemicals were quite different from common odorants, such as geosmin and 2-MIB; and (2) it occurred repeatedly in different seasons during a time span of more than 2 years. The screening of odorants was the first and one of ...


    By IWA Publishing

  • Canarina DISPER software · odor intensity calculation · commands 10

    The pollutant concentrations will be calculated in a perpendicular plane to the land surface (XZ-Plane). The plane height will be determined by the user (yr). All the points of the XZ-Plane will be to a yr height. The yr value is chosen by the user before the calculation. We will be able to make many calculations considering different plane heights. The different plane ...

  • Canarina DISPER software · odor in the indoor environment · commands 7

    In the Status bar at the bottom, we have X,Y and Z coordinate values in meters and data on our environmental system. Point the mouse where you want in the program window and the X,Y and Z values will be shown in the status bar at the bottom. If you select XY-Plane, a grid appears.   On the left bottom corner, two different text boxes appear: The position of the XY-plane with respect to the ...

  • Case study - Stainless steel RTOs for ethanol emissions and odors

    Overview A 42 million gallon expansion at an ethanol production plant in Nebraska was certain to put the dry mill out of emission compliance for Hazardous Air Pollutants (HAPs), Volatile Organic Compounds (VOCs), carbon monoxide (CO), nitrogen oxides (NOx), and particulate matter (PM), all regulated by the EPA. Ethanol production facilities in the United States are permitted to operate ...

  • Development of a novel odor measurement system using gas chromatography

    This paper describes a novel odor measurement system for creating arrays of virtual chemical sensors with nonoverlapping responses using ultrahigh-speed gas chromatography with a surface acoustic wave sensor (GC/SAW). This GC/SAW system provides high-resolution twodimensional olfactory images for easy recognition of many complex odors. Separation and quantification of the individual chemicals ...

  • Effects of the combination of aeration and biofilm technology on transformation of nitrogen in black-odor river

    Excess nitrogen in urban river networks leading to eutrophication has become one of the most urgent environmental problems. Combinations of different aeration and biofilm techniques was designed to remove nitrogen from rivers. In laboratory water tank simulation experiments, we assessed the removal efficiency of nitrogen in both the overlying water and sediments by using the combination of the ...


    By IWA Publishing

  • Canarina DISPER software · measuring odor concentration · commands 6

    In the center of the program window, we will draw and we will calculate the different polluting processes. We can draw using two different planes: parallel to the land surface (XY) and perpendicular to the land surface (XZ). There is a grid in the XY-plane. The coordinate origin is on the left bottom corner (X=0, Y=0) in XY-planes (parallel to the land surface). In addition, the coordinate origin ...

  • Case study - Odor treatment in a ventilation shaft of a sewage tunnel

    Bioconservacion’s distributor for municipal biogas and odor applications in Turkey, Biotek Ltd, has recently won a tender for Izmir’s municipal authority IZSU to supply equipment and media for odor abatement coming from a ventilation shaft of a sewage tunnel. These shafts, also known as airshafts or vent shafts, are passages used in different applications such as mines ...


    By Bioconservacion SA

  • Odor control system addresses community’s complaints - case study

    The Customer: The Water Pollution Control Authority (WPCA) of the City of Bridgeport, Connecticut, operates two wastewater treatment facilities and maintains the city’s sewer system. The Customer’s Needs: After years of operating successfully in the community, the City of Bridgeport’s WPCA developed an odor problem at its East ...

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