lagoon cover Articles

  • Case study - Covering lagoon stops odor complaints

    Problem: United Liquid Waste Recycling of Watertown, Wisconsin, recycles food and beverage waste into valuable byproducts such as fertilizer. Odors from the anaerobic treatment process needed to be stopped to enable the company to expand. Two lagoon anaerobic digesters needed an affordable odor control system, which had to function whether the lagoons were full or empty. ...

  • Case study - Wastewater lagoon cover stops odor complaints

    Problem: United Liquid Waste Recycling (ULWR) successfully recycles food and beverage waste into valuable by-products such as fertilizer. Odors from their anaerobic treatment process needed to be stopped to enable ULWR in Watertown Wisconsin to expand. Their two lagoon anaerobic digesters needed an affordable system to control odors. ULWR injects their valuable fertilizer into farm fields twice ...

  • Lagoon Discharge Flow Monitoring

    Open Channel Flow Monitoring without a Flume or Weir Township operators liked the Greyline AVFM 5.0 datalogger reporting system where formatted flow reports (total, minimum, maximum and average) could be downloaded automatically to a USB memory stick without carrying a laptop to the site. The Township of South Glengarry in Eastern Ontario discharges continuously from their ...


    By Greyline Instruments Inc.

  • Capturing biogas energy to increase your business profits while safeguarding the environment

    Methane is a biogas produced from swine or cow manure, as well as food processing and meat packing waste. Methane is a natural gas, that when left uncollected, contributes to the harmful greenhouse gases in the earth’s atmosphere. When biogas is captured under a cover and becomes concentrated, it creates a corrosive and toxic byproduct called hydrogen sulfide. The gas generates a rotten egg ...

  • James river lagoon , Marathon, Ont., Canada

    New federal and provincial guidelines for treatment of industrial waste have resulted in the construction of a secondary waste water treatment facility at a pulp mill in Marathon, Ont. The mill, owned by James River - Marathon, is located on the north shore of Lake Superior approximately 300 km west of Thunder Bay and includes a large secondary treatment basin which is 375 m long x 278 m wide x ...


    By Presto Geosystems

  • AVFM 5.0 area-velocity flow meter monitors sewage lagoon discharge flow

    The Township of South Glengarry in Eastern Ontario discharges continuously from their 72,000 m3 sewage lagoon. But they ran into flow measurement problems when their magnetic flowmeter was unable to detect seasonal low flow rates. Operations Manager, Shawn Killoran selected a Greyline AVFM 5.0 Area-Velocity Flow Monitor because it was simple to install in a horizontal discharge pipe from the ...


    By Greyline Instruments Inc.

  • Remote controlled `Pit Hog™` dredge removing sludge from aeration lagoons at Los Alisos, California, Waste Water Treatment Plant

    The Los Alisos Water District Water Reclamation Plant is removing raw sewage solids, decayed algae and microorganisms, and algae-laden sludge from its aeration lagoons using a Liquid Waste Technology (LWT) remote controlled lagoon dredging system. The tertiary wastewater treatment plant treats four million gallons per day. Officials of the Lake Forest, California facility initiated the buildup ...

  • Nashville airport dredging case study

    Project Sponsor:Metropolitan Nashville Airport Authority Application: Clean and dredge waste water treatment plant for airport runoff (from runway tarmac) Dredge Used: LWT RCLPE Runt Dredge (Remote Control Lagoon Pumper Electric) Project Summary: Automated remote control dredge with rail system to cover the entire pond ...

  • GTI helps keep Kamloops beautiful - case study

    The City of Kamloops is located in the interior of British Columbia, Canada’s westernmost province. As part of Kamloops’ Liquid Waste Management Plan, the city was seeking opportunities to use its wastewater as a resource, rather than treat it solely as waste. One method was to capture methane gas (biogas) produced from the anaerobic treatment of wastewater and use it to generate ...

  • Biogas from Cassava in Vietnam case study

    Application Waste water from cassava Equipment AEMS Location Vietnam Customer Solvay Requirement An AEMS fixed biogas analyser was needed to monitor CH4, CO2, O2 ...


    By Geotech

  • Geomembrane protection - Case Study Summary 1

    Protecting geomembranes is critical to their long-term performance in many applications including lagoons, detention ponds, storm water containment basins, dikes, temporary dams and landfill covers.  The Geoweb® system, with a variety of infills, will provide armor protection to impervious liners or covers so that they can maintain their integrity. Inclusion of internal tendons and ATRA® load ...


    By Presto Geosystems

  • Pumping wells & sewage lines case study

    Dorset Council - Bioremediation of Sewerage System The Dorset Municipality situated in the North East of Tasmania covers an area of 3196 km2. It comprises 14 townships, 10 water schemes and reticulated sewerage schemes for its two largest townships, Scottsdale and Bridport. Their populations are 1922 and 1234 respectively. Bridport’s population increases to approximately 6000 over ...


    By Cleveland Biotech Ltd.

  • Continuous AD monitoring for McCain`s CHP case study

    Application Anaerobic digestion Equipment AEMS Location Whittlesey, United Kingdom Customer McCain Foods Requirement McCain Foods corporate affairs director, Bill Bartlett said, “The Geotech static gas analyser is here to analyse gas quality as it is ...


    By Geotech

  • Benefit from cassava plants - Hofstetter builds a CDM plant in Indonesia

    Hindelbank - Indonesia ranks as the fourth largest cassava producer in the world. Because of its starchy tubers, cultivation of the cassava plant is an essential part of agriculture in Indonesia. In the Lampung region on the island of Sumatra, the Sahabat Group is expanding the existing production of cassava starch. During the process of extracting the starch, waste water is produced which ...


    By Hofstetter BV

  • Fairplay, CO - case study

    The Challenge The Fairplay Sanitation District was challenged in meeting their ammonia permit limits and wanted a process that would produce a stable effluent in a small footprint. Influent water temperatures were regularly recorded in between 6°C and 10°C. Due to these cold temperatures, nitrification was not being achieved on a consistent basis. Additionally, the District had to ...

  • New LWT system improves safety for workers dredging radioactive materials

    Problem: Cleanup crews wanted to dredge radioactive sludge from hazardous waste pits without releasing contaminants to the environment. Solution: A remote-control system encloses the radioactive material during dredging and keeps workers at a safe distance. The Weldon Springs, Mo. Superfund site and remedial action project has four pits containing low-level radioactive raffinate debris and ...

  • Quantifying Fugitive Emissions from Biodigesters

    Background Agricultural biodigesters reduce greenhouse gas (GHG) emissions & generate clean energy. GHG reduction depends on many factors (design, feedstock, etc.), including the amount of fugitive CH4 emissions. Quantifying fugitive emissions is difficult -- commonly assumed: 15% of total CH4 production (California Climate Action Registry ) 15% of ...


    By PKL Technologies Inc.

  • Macroalgal standing crop estimate – fast method using ultralight aircraft

    A simple and low-cost method for monitoring macroalgal standing crops in shallow water consists of flying over and photographing the areas in an ultralight aircraft to determine the surface area of macroalgal mats. In the proposed method, photos are analysed by AUTOCAD software and mat density is then estimated in the field. Using mat density and bottom surface covered by mats, a rough estimate ...


    By Inderscience Publishers

  • Variable Dosing Yields Economy and Results - Carlsbad case study

    Business OverviewThe Carlsbad Municipal Water District is a subsidiary of the City of Carlsbad, located in San Diego County, California. The district’s service area covers approximately 85% of the city, an area of about 32 square miles. The District provides wastewater collection services through 145 miles of collection pipelines, 40 miles of sewer laterals and 16 pump stations. The ...


    By BioMagic

  • Base flow nutrient discharges from lower delmarva peninsula watersheds of Virginia, USA

    Received for publication August 11, 2008. Proper management of shallow coastal systems, which are vulnerable to nutrient enrichment, requires knowledge of land use impacts on nutrient discharges. This study quantified base flow nutrient concentrations and yields for 1 yr (May 2001–April 2002) from 14 first-order streams on the Virginia Eastern Shore (VaES) on the Delmarva Peninsula and assessed ...

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