odor nuisance Articles

  • Landfill eliminates nuisance odors, saves a large revenue stream and increases profits

    The Problem - Neighbors surrounding a southwestern Ohio landfill were outraged by the offensive odors emanating from the site's sludge processing operations. The neighbors complained to local and state regulators every time a load of the offending material was delivered for processing. The site had to do something otherwise they were going to lose the lucrative sludge disposal contract. ...


    By Benzaco Scientific, Inc.

  • Biotreatment of Organic and Inorganic Odors

    Air emissions from manufacturing operations and waste treatment plants often consist of a combination of odors and volatile chemicals. Odors are inorganic or organic compounds, which are present in low concentrations, typically 20 ppmv or less, which have an unpleasant odor. Volatile chemicals are often present at higher concentrations than odors, but may or may not have any odors associated with ...


    By PRD Tech, Inc.

  • An application of backscatter Lidar to model the odour nuisance arising from aircraft tyre smoke

    A Rapid-Scanning Backscatter Lidar (RASCAL) has been deployed at Heathrow and Manchester Airports to collect backscatter data from particulate emissions in the wakes of several hundred flights. The principal aim of these measurements was to characterise the dispersion of the engine exhausts, but it was found that tyre smoke was also visible, giving a signal substantially greater than that from ...


    By Inderscience Publishers

  • 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.

  • Online Odors Monitoring in Waste Water Treatment Plants

    Odors are very distinct air contaminants as they generate nuisances (see note at the end). The factors playing a role in the determination of odor annoyance are : odor concentration and intensity, frequency, appreciation, duration, synergy and location. Chromatotec proposes an automated solution to well identify the origin and the level of odors. Technology Description We offer a ...


    By Chromatotec Group

  • Most widespread and frequent reasons of septic tank odor

    Septic tank odor can be an indication about the septic tank running is in trouble and something has gone erroneous with the septic tank. These problems can be able to signify many reasons from simple to most dangerous issue associated with septic tank administration. Regardless of what are the causes for the incidence of ...


    By Hydra International Ltd

  • Case study - Controlling odors at a specialty plastics manufacturer

    Challenge A specialty plastics manufacturer in the eastern United States makes a plastic compound that, because of its unique and desirable properties, is widely used in the automotive industry. Complications arose for this manufacturer because, in the production process, mercaptans are driven off and produce a non-hazardous but offensive nuisance odor problem. The ...


    By OMI Industries (OMI)

  • 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

  • Wastewater-Solids Dewatering Odor Control - Case Study

    Background The Milan Wastewater Treatment Plant, located just south of Moline, Illinois, is a 1.7 MGD (6,434 m3/day) activated sludge facility with an average wastewater flow of 700,000 gpd to 800,000 gpd. This facility dewaters primary sludge using a belt filter press (Figure 1). The press operates an average of three times per month, 8 hours per day at a pump rate of 100 gpm. The ...


    By Carus Corporation

  • Comparison of two standard odor intensity evaluation methods for odor problems in air or water

    Government agencies responsible for ensuring healthful water and/or air quality are often faced with resolving public complaints of nuisance odors. Understanding variations in odor intensity may ultimately lead to the establishment and application by such agencies of quantitative limits for effective odorant control. An odor panel was trained in suprathreshold odor intensity evaluation using ...


    By IWA Publishing

  • Control of biosolids cake odors using the new biosolids odor reduction selector process

    ABSTRACT Recent introduction of more efficient dewatering devices that generate higher solids concentrations in dewatered cake has been plagued with the non-desirable side effect of more odorous dewatered biosolids. Previous research has shown that the production of volatile organic sulfur compounds (VOSC’s) such as methanethiol (MT), dimethyl sulfide (DMS), and dimethyl disulfide (DMDS) ...

  • New Home with Puraflow Septic System and Odor Complaint - Case Study

    Problem After installation of a Puraflow septic system the customer complained of odors in his yard. The contractor installed residential vent odor filters on the tank vent on the roof vents. The residential odor filters improved but did not eliminate the problem. The contractor reviewed the problem with Simple Solutions and determined that the problem was due to the ...


    By Simple Solutions Dist. LLC

  • Biosolids Odor Prediction Models: Sensory and Analytical Measurement Approaches

     Abstract Practical biosolids odor prediction models were developed to be use by managers for predicting the odor emission rates of biosolids generated daily at the District of Columbia’s wastewater treatment plant. These models evaluated daily wastewater treatment process data and predicted the expected biosolids odor emissions levels prior to recycling of this material on land. ...

  • Real-time monitoring and forecasting of odor after dewatering in wastewater treatment

    A real-time odor monitoring system was developed to evaluate and predict odors levels of dewatered solids generated by the District of Columbia Water and Sewer Authority’s (DCWASA) advanced 370 mgd wastewater treatment plant (WWTP) in Washington, DC. Each year, DCWASA generates over 400,000 wet tons of biosolids and recycles these biosolids by applying them to over 20,000 acres of agricultural ...

  • Controlling odors from creosote utilizing foam-based technology

    From approximately 1910 until the mid-1950s, a creosote plant operated on a 50 acre site in Manville, New Jersey. During its operation, the wood treatment facility treated railroad ties with creosote and discharged the excess creosote via canals to two waste lagoons located on the site. After treatment, wood was stored in areas of the site where excess creosote dripped onto surface soils and ...


    By Rusmar Inc.

  • Odor Eliminators For Roof Top Vents Often Called Stink-Pipes

    Every state, city, and village either has odor ordinances or treats obnoxious odors perceptible beyond property lines as public disturbances/nuisance. All plumbing vent stacks produce odors unless they fitted with a filter. OSHA warns that levels of 300-ppm (H2S) cause the olfactory nerve to lose sensitivity. At first a “rotten egg” odor is detected but on the second or third breath the odor ...


    By Pennington Equipment Company

  • 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.

  • TOTALOX Odor Eliminator: The Two Step Treatment in One Package - Case Study

    Collection Systems Are Tough! With miles of pipe and multiple pumping stations, managing the complexity of a wastewater collection system is a full time job. The main task is to maintain the system and keep it flowing. But also near the top of that task list is preventing nuisance odors. When the phone starts ringing, you become a detective. First, you have to find the site or sites ...


    By Carus Corporation

  • Odorous volatile organic compound (VOC) emissions from ageing anaerobically stabilised biosolids

    Opportunities for the beneficial re-use of biosolids are limited by nuisance odour emissions. Volatile organic compounds (VOCs) from anaerobically stabilised biosolids were measured to identify compounds that could contribute to the overall odour character of nuisance emissions. Flux hood sampling and chemical analysis were used to identify VOCs emitted from biosolids as they were stored in ...


    By IWA Publishing

  • Comparison of different measurement methods of odour and odorants used in the odour impact assessment of wastewater treatment plants in Poland

    The aim of this study was to compare sensory and analytical methods used to measure odour and odorants concentrations for odour impact assessment on municipal wastewater treatment plants (WWTPs). A range of sources and odour or odorants concentrations were used to compare the methods. Four different odours and odorants measurement methods were compared: field olfactometry using Nasal Ranger® ...


    By IWA Publishing

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