odor impact Articles

  • Impact of Lime Dose and Mixing Quality on Odor Generation by Lime-Stabilized Biosolids

    ABSTRACTOdor generated from lime-stabilized biosolids with various lime doses and mixing regimes was studied during two bench scale experiments over four weeks of storage to determine the correlation between the lime stabilization process and odor strength. For the first bench scale experiment, dewatered solids were mixed with various lime doses (4.5% and 11.7% by wet weight) under various mixing ...

  • 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.

  • Are membranes the answer to odor?

    ABSTRACT A microporous hollow fibre membrane operating in non-wetted mode has been applied to the removal of hydrogen sulphide from gas streams. The case studies under investigation were (i) H2S absorption within single passage through the membrane and (ii) H2S absorption with recycle. Counter-current flow configuration was considered with the test contaminant passing through the shell-side of ...

  • 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

  • Smart Series-Odor Management

    Tackling odors at composting facilities is a manageable task made simpler by inventorying and treating all sources and tapping into technology advances. Perhaps one of the most difficult realities that had to be faced 15 to 20 years ago by the composting universe is that the phrase, “odor-free” - at least when it comes to composting - is probably an oxymoron. Feedstocks that biodegrade within the ...


    By BioCycle Magazine

  • 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

  • Odor Control Advances at Composting Facility

    The Rockland County (New York) Cocomposting Facility began operations in February, 1999, processing biosolids from the five publicly owned treatment works (POTWs) in the county. The Rockland County Solid Waste Management Authority (RCSWMA) owns the facility, but contracted with Waste Management of New York to design, build and operate (DBO) the 110 wet tons/day agitated bin composting facility ...


    By BioCycle Magazine

  • Odor and Heat Contained Thanks to GTI Cover

    The Customer: A major American frozen food manufacturer with worldwide distribution. The Customer’s Needs: The frozen food manufacturer required a cover solution for its wastewater treatment system that would reliably contain odors and retain heat. The Solution: Geomembrane Technologies Inc. (GTI) designed, fabricated, ...

  • SUEZ Lyonnaise des Eaux - Adapting compost production methods and reducing the odor impact of the site with the RQ Box solution case study

    The site Covered composting facility located at Lur Bizia, France 15 000 tons of sewage sludge treated per year 5000 tons of compost produced per year Compost meets the specifications of French standard NFU 44-095 2 air treatment lines at 35 000 m3/h Air treatment by scrubber and biofilter ...


    By Alpha MOS Environment

  • Dispersion Modeling as a Tool to Establish Odor Policy

    Odor control is a critical component of the Orange County Sanitation District’s (the Sanitation District) planning and operations. The Sanitation District’s two wastewater treatment plants (Fountain Valley, CA and Huntington Beach, CA) were isolated when originally constructed in the middle of the 20th century, but are now surrounded by high-density residential areas as well as highly used ...

  • Countering Wastewater Odor Complaints on a Localized Level

    In countless counties and towns throughout the U.S., there are ongoing new stories about wastewater treatment odors negatively impacting nearby residents and businesses. From Sioux City, Iowa to  ...


    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

  • Controlling Odors from Waste Water Treatment Plants

    INTRODUCTION In recent years, there is growing public awareness of odors from waste water treatment plants, which mainly stems from the following observed trends: The public is less tolerant of objectionable odors from waste water treatment plants; Many waste water treatment plants have seen residential, commercial, or other developments established near the facility ...


    By PRD Tech, Inc.

  • Odor issues at Mariposa MSW composting facility

    The Mariposa County MSW composting facility was built at the county landfill to remove some dry recyclables from the waste stream and to produce compost for daily cover. One key motivation was to increase the lifespan of the landfill and to postpone a costly long-haul. The facility was permitted, designed and built by a team of engineers and vendors. It began operation in the summer of 2006. ECS ...

  • Advances in flashpoint testing: economic impact

    Flashpoint testing is one of the oldest methods of the ASTM D02 Committee on Petroleum Products and Lubricants, which was formed in 1904. The most prevalent standards are ASTM D56 (Tag Method), D92 (Cleveland Method), and D93 (Pensky-Martens Method). These classical techniques, commonly referred to as open-cup and closedcup methods, share a common principle: A test flame is lowered into the ...

  • Continuous Monitoring of Odorous compounds in WWTP Sensory approach or Physico-chemical solution?

    In WWTP site managers are familiar with odor & chemical profile as they are exclusively focused on sulfur compounds measurement. These molecules are used as process drift indicators and offer a good criteria of process performance. Hydrogen Sulfide (H2S), Methyl Mercaptan (MM), Ethyl Mercaptan (EM), dimethyl sulfur (DMS) or Di-Methyl-di sulfur (DMDS), sulfur dioxide (SO2) provide a better ...


  • Using UV for Simultaneous Disinfection and Control of Unpleasant Tastes and Odors in Drinking Water

    Algae blooms in surface water sources often lead to off-tastes and odors in finished drinking water. Because public confidence in overall drinking water quality is closely related to aesthetic quality, there is increasing interest in solving taste and odor issues.  UV-oxidation, the combination of UV and hydrogen peroxide, offers the ability to treat taste and odor (T&O) while simultaneously ...

  • WWTP Covers Its Grit Tanks to Help Address Odor Concerns

    The Customer: The Georgetown Wastewater Treatment Plant (WWTP) located in Ontario, Canada, provides industrial and municipal wastewater treatment for the urban area in the Town of Georgetown. The plant treats approximately 17.5 ML of wastewater per day. It is sized to accommodate the wastewater treatment needs of a local dairy processing facility, the plant’s largest industrial ...

  • Improved Aeration Eliminates Odor in Mexicali, Baja California, Mexico

    Overview: The State Commission of Public Services of Mexicali (CESPM) is a Decentralized Public Organization of the State Government of Baja California in Mexico. CESPM oversees the planning, construction, operation, and maintenance of the potable and wastewater infrastructure in the Mexicali municipality. The Zaragoza Wastewater Treatment Plant is the CESPM’s largest plant ...

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