sewer gas Articles

  • I think I smell sewer gas – what should i do?

    The first thing is to make sure the smell is sewer gas—usually a rotten egg smell—and not a natural gas smell—usually smells like a skunk. If you think it’s the natural gas smell, call the natural gas company immediately and if it’s anything but a very faint small—evacuate your home, office, or whenever it is—and wait for the gas company to give you an ...


    By Atlantic Environmental, Inc.

  • I Think I Smell Sewer Gas – Home or Office – Who Can Help?

    Is It Sewer Gas? The first thing to do is make sure the smell is sewer gas—usually a rotten egg smell—and not a natural gas smell, which usually smells like a skunk. If you think it’s a natural gas smell, call you’re natural gas company immediately. If it’s anything but a very faint smell, evacuate the building and wait for the gas company to give you ...


    By Atlantic Environmental, Inc.

  • Global sensitivity analysis of an in-sewer process model for the study of sulfide-induced corrosion of concrete

    The presence of high concentrations of hydrogen sulfide in the sewer system can result in corrosion of the concrete sewer pipes. The formation and fate of hydrogen sulfide in the sewer system is governed by a complex system of biological, chemical and physical processes. Therefore, mechanistic models have been developed to describe the underlying processes. In this work, global sensitivity ...


    By IWA Publishing

  • Modeling the Formation and Fate of Odorous Substances in Collection Systems

    A conceptual model that simulates the formation and fate of odorous substances in branched collection systems is presented. The model predicts the activity of the relevant biomass phenotypes under aerobic, anoxic and anaerobic conditions in force mains and gravity sewers. The formation and fate of individual, malodorous substances in the bulk water, the biofilms and the sediments are modeled. The ...

  • A sewer process model as planning and management tool – hydrogen sulfide simulation at catchment scale

    The collection system of a major city at the Persian Gulf was simulated for bulk water hydrogen sulfide and the release of sewer gas to the urban atmosphere. Geometry data on 870 km of sanitary sewer and data on dry weather flow entering all nodes in the catchment was exported from a Mike Urban database and imported to the sewer process model WATS. The process model then routed sewage and sewer ...


    By IWA Publishing

  • Kinetics of aerobic oxidation of volatile sulfur compounds in wastewater and biofilm from sewers

    Laboratory experiments were conducted to investigate the kinetics of aerobic chemical and biological oxidation of selected odorous volatile sulfur compounds (VSCs) by wastewater and biofilm from sewers. The VSCs included methyl mercaptan (MeSH), ethyl mercaptan (EtSH), dimethyl sulfide (DMS) and total inorganic sulfide, which have all been reported as the main constituents of foul sewer gas. ...


    By IWA Publishing

  • 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 ...

  • Odor Control H 2 S / Sewer Gas Wet Scrubbing Explained

    H2S / Sewer Gas / Rotten Egg Smell Control Hydrogen Sulfide, chemical formula H2S. also commonly referred to as 'sewer gas' is frequently a nuisance problem at waste water treatment facilities - and a source of complaints from neighbors of such facilities. Additionally, H2S not only stinks, at high concentrations it incapacitates, blinds and eventually will kill if allowed to ...


    By Raschig USA Inc.

  • Indoor Air Quality (IAQ) Surveys in High-Rise Buildings

    We have developed a distinctive approach to evaluating individual tenant spaces and entire high-rise buildings for air quality, including molds and chemicals. Sick Building Syndrome (SBS) and Building Related Disease (BRD) are more likely in large commercial spaces because of the complexity of the HVAC systems, variety of tenants, space constraints and the fact that they are in dense metropolitan ...


    By Atlantic Environmental, Inc.

  • New York City Chooses Ductile Iron Pipe For First Pipe Bursting Project

    When the City of New York Department of Design and Construction (DDC) determines a pipeline needs to be installed, any private utility using the City’s right-of-way, e.g. ConEd, Cable Vision, Key Span and Verizon, is responsible for the cost of relocating and supporting, if possible, any conflicting lines prior to or during construction. This cost can be extremely high since utility corridors are ...

  • Less Obvious Health Hazards in the Workplace

    Workplace exposures to agents that can cause injury to employees are generally restricted to physical, chemical or biological sources. It’s not just the factory worker who is at risk. Exposures can be presented by a variety of dusts and fibers. Renovating an office can produce gypsum dust, paint solvents, the release of asbestos fibers and hidden mold spores. A poorly running ventilation ...

  • Release of hydrogen sulfide in a sewer system under intermittent flow conditions: the Eiceira case study, in Portugal

    The presence and fate of hydrogen sulfide in wastewater systems were studied in two stretches of an intercepting sewer system located in a coastal village, in Portugal. A range of hydraulic parameters were obtained and liquid and gas phase measurements were carried out, both continuously and through intensive sampling campaigns. Upstream, where flow rates were relatively low, dissolved sulfide ...


    By IWA Publishing

  • Indoor air quality problems – If it isn’t Mold, What is it?

    Why are you experiencing indoor air quality problems? There are a number of employees in our office who have itchy, watery eyes, nasal congestion, headaches, lethargy, and trouble concentrating. Most of the affected folks report they feel better at home and worse after they’ve been in the office for about an hour. We had the office tested for mold but nothing remarkable was found. ...


    By Atlantic Environmental, Inc.

  • Indoor Air Quality and Mold in Commercial Buildings – Texas

    Atlantic Environmentalhas been providing expert testing and consulting in the mold and Indoor Air Quality in commercial buildings since our founding 40 years ago (1978). Our Texas office is located in the Dallas/Fort Worth area. Building occupants may feel a variety of adverse effects from their work environment. This can be as simple as a headache, or more complex such ...


    By Atlantic Environmental, Inc.

  • Locating pipes and cables case study

    GPR can be used to determine the location and depth of metallic, non-metallic, plastic, concrete and asbestos-concrete utilities, and cables (power, signal, etc.) Locating of  City Utilities The VIY3-300 GPR was used for locating of city utilities (water, gas, sewer, etc.). This profile shows city utilities at a depth of 1.2 and 2.0 meters (wave speed is 130 meters per ...


    By Transient Technologies LLC

  • Indoor Air Quality in the Mid-Atlantic States

    Indoor air quality is an issue in the Middle Atlantic States (VA, MD, DE, NJ, NY, PA, and CT) simply because 25% of the U.S. population lives and works there! Further, it truly has four (4) seasons. Floods and mold in the spring, heat and humidity in the summer, pollen, ozone, hurricanes in the fall, snow, sleet, and ice in the winter. Indoor air quality in our homes, transportation, offices, and ...


    By Atlantic Environmental, Inc.

  • Indoor Air Quality (IAQ) Surveys in High-Rise Commercial/Residential Buildings

    We have developed a distinctive approach to evaluating individual tenant spaces and entire high-rise buildings for air quality, including molds and chemicals. Sick Building Syndrome (SBS) and Building Related Disease (BRD) are more likely in large commercial spaces because of the complexity of the HVAC systems, variety of tenants, space constraints and the surrounding area. As buildings age, the ...


    By Atlantic Environmental, Inc.

  • Sulfide emissions in sewer networks: focus on liquid to gas mass transfer coefficient

    H2S emission dynamics in sewers are conditioned by the mass transfer coefficient at the interface. This work aims at measuring the variation of the mass transfer coefficient with the hydraulic characteristics, with the objective of estimating H2S emission in gravity pipes, and collecting data to establish models independent of the system geometry. The ratio between the H2S and ...


    By IWA Publishing

  • Atlanta Indoor Air Quality (IAQ) Surveys in High-Rise Commercial/Residential Buildings

    We have provided Indoor Air Quality to high-rise building owners and tenants since 1984 in Atlanta. Our offices in Atlanta, Chicago, Dallas, and Boston have further added to our knowledge and experience in the unique problems of high-rise and large commercial residential buildings, as well as the problem in large densely populated communities. Our experience includes Post-9/11 Building Air ...


    By Atlantic Environmental, Inc.

  • New York City Indoor Air Quality (IAQ) Surveys in High-Rise Commercial/Residential Buildings

    We have provided Indoor Air Quality testing to high-rise building owners and tenants since 1984 in New York and beyond. Our offices in Atlanta, Chicago, Dallas, and Boston have further added to our knowledge and experience in the unique problems of high-rise and large commercial residential buildings, as well as the problem in large densely populated communities. Our experience includes Post-9/11 ...


    By Atlantic Environmental, Inc.

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