sewage lagoon Articles

  • Achieving nitrification in sewage lagoons with an innovative floating RBC

    The research involved the newly developed floating rotating biological contactor (FRBC), a unique unit consisting of a rotating cage filled with hollow, spherical packing of injection molded plastic. The cage rotates to provide biomass a chance to contact both substrate and air. A partially mixed three-cell aerated lagoon was selected for the study. The lagoon received about 114 m3/d of domestic ...

  • Uruguay village lagoon system

    This municipal lago on receives 240,000 litre of domestic sewage per day. A total of 322 litres of Aqua-Clean was applied during a period of six weeks. The water was purified 85% after the application and was certified for use in farm irrigation. pH was improved to 7.2 and the Biochemical Oxygen Demand (BOG) was reduced from 480 initially to 130 after the treatment. All noxious odors were ...


    By BluePlanet Labs

  • Regina shoreline sewage lagoon, Regina, Sask., Canada - Case Study

    When Stantec Consulting Ltd. of Regina, SK, Canada, won the contract to design a new sewage lagoon for the City of Regina, the site’s history provided a good indication that serious erosion control measures were called for. Constructed in the early 1960s, the Regina Wastewater Treatment Plan uses a series of lagoons to contain secondary effluent from its sewage treatment operation. With the ...


    By Presto Geosystems

  • Regina shoreline sewage lagoon, Regina, Sask., Canada - Case Study

    When Stantec Consulting Ltd. of Regina, SK, Canada, won the contract to design a new sewage lagoon for the City of Regina, the site’s history provided a good indication that serious erosion control measures were called for. Constructed in the early 1960s, the Regina Wastewater Treatment Plan uses a series of lagoons to contain secondary effluent from its sewage treatment operation. With the ...


    By Presto Geosystems

  • Use of Barley Straw for Algal Reduction in Sewage Lagoons – Operational Considerations

    Pecos began use of barley straw as a clarification aid in June 2005 to determine its effectiveness as part of a phased treatment plant replacement. Phase I includes construction of a new UV system that will disinfect effluent received directly from Lagoon No. 3. However, this phasing would place a heavy TSS loading on the UV system. As barley decomposes, a chemical is emitted that inhibits algal ...

  • 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.

  • Computational fluid dynamics simulations of membrane filtration process adapted for water treatment of aerated sewage lagoons

    The aim of this study is to apply the membrane bioreactor technology in an oxidation ditch in submerged conditions. This new wastewater filtration process will benefit rural areas (<5,000 population equivalent) subject to chronic water shortages by reusing this water for irrigation of green areas. For this purpose, the membranes developed without support are immersed in an aeration well ...


    By IWA Publishing

  • Sewage sludge management in Malaysia

    This paper describes the current status of sewage sludge management in Malaysia, including sludge characteristics from both communal sewage treatment facilities and septic tanks. The levels of potentially toxic elements in the sludge are defined and compared to levels elsewhere in the context of the suitability of the sludge for agricultural use. Current sludge disposal practices are reviewed and ...


    By Inderscience Publishers

  • Lagoon Discharge Flow Monitoring - Case Study

    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.

  • Environmental Industrial Water & Algae Control in lagoons and ponds.

    Proven site trails and report shows a excellent reduction/removal of Microcystis and filamentous algae where we proved excellent results with ASMP-1000.A systems These ponds are characterised by large open lagoons with a fairly high residence time of water and UV exposure in the summer months. During the holding period in the open reservoirs, filamentous algae start growing ...

  • One Forcemain – Multiple Sewage Pumping Stations

    The sewage collection system for the community of Port Perry Ontario includes several sewage pumping stations conveying wastewater to the existing aerated sewage lagoons for treatment.  Initially the system originally included two sewage pumping stations pumping from the Community directly to the lagoons; the Water Street Pumping Sewage Station and the Cawker’s Creek Sewage Pumping Station. ...

  • Lagoon Maintenance Dredging every Decade

    SRS Crisafulli has discovered the Rural Water Association.  This winter, Troy Fercho, Frank Robinson, Tristan Hoff and I attended shows in North Dakota, Montana, Minnesota, and Idaho.   At these Rural Water Association Trade Shows, we promoted SRS Crisafulli's dredge equipment and rental services to assist communities in managing the long term, low cost ...


    By SRS Crisafulli, Inc.

  • Treatment of the city of Oudenaarde (Belgium) sewage discharge canal case study

    Executive Summaryc A canal responsible for carrying sewage away from the City of Oudenaarde to the Scheldt River was partially dammed in 1965 leaving an area of open water of approximately 1 hectare (600 meters by 17 meters). As the canal was only partially dammed, water from the canal continued to flow into the Scheldt River. Two large municipal sewage collection discharge pipes ...


    By Nordevco Associates Ltd.

  • Odor mitigation in a Lagoon wastewater system (ID1591) - Case study

    Location: Garretson, South Dakota Problem: "Odor events" every spring Solution: SolarBee SB10000 unit in cell #1 and cell #2 Result: Mixers "cap" and prevent odors from escaping to the atmosphere Spring, not sewage, is in the air for residents of Garretson, South Dakota ...


    By Medora Corporation

  • Mixing To Enhance Facultative Wastewater Lagoon Treatment

    SolarBee® & GridBee® Are Leading The Way In most lagoons, sunlight causes a hard stratification at 12 to 18 inches of depth.  The top water is warmer and thick algae populations are producing supersaturated dissolved oxygen (DO).  The DO gasses off at the surface and is not readily available deeper in the pond for use by BOD-reducing bacteria. Meanwhile new ...


    By Medora Corporation

  • Assessment of treatment capabilities of Varthur Lake, Bangalore, India

    Manmade waterbodies have traditionally been used for domestic and irrigation purposes. Unplanned urbanisation and ad-hoc approaches have led to these waterbodies receiving untreated sewage. This enriches and eutrophies the waterbody. A physico-chemical and biological analysis of sewage-fed Varthur Lake in Bangalore was carried out and its treatment capabilities in terms of BOD removal, nutrient ...


    By Inderscience Publishers

  • Solar drying of sewage sludge - An old method with modern technology using Wendewolf®

    Any Sewage Water Work throughout the world will produce sludge, a form of biomass growing in the basins. This biomass has to be evacuated and is, generally speaking difficult to handle! When liquid it has a dry matter of 3 to 4 %, or only 30 to 40 kg per ton of sludge, when mechanically dehydrated to 20 - 25 % most of it is still water, as an average  750 to 800 kg per ton of filter cake. ...


    By IST-Anlagenbau GmbH

  • Fate of indicator endocrine disrupting chemicals in sewage during treatment and polishing for non-potable reuse

    The removal and fate of several indicator endocrine disrupting chemicals (EDCs) at two large municipal wastewater treatment plants (WWTPs) in Adelaide South Australia was investigated. Non-estrogens included the non-ionic surfactant breakdown compounds nonyl phenol mono- and di-ethoxylates, 4-t-octylphenol and 4-nonyl phenol; and, the plasticizer bisphenol A. Estrogens included 17β-estradiol; ...


    By IWA Publishing

  • Pearl river valley water supply district case study

    Performance History and Discussion In-Pipe Technology implemented the first phase of a collection system Professional Services Program in 2001. Beginning in 2002, additional collection system basins were added to the services program. Currently, the treated areas include the North and South shore of the Pelahatchie Bay, the Main Harbor, and two Lagoon Waste Water Treatment Plant (WWTP) ...

  • WaterMiner and Fracing Make-up water

    Using the WaterMiner sewage cleaning and disinfection capabilities to create clean fracking make-up water for gas companies, and to provide a new source of revenue for municipalities. Stage, a near instant on, WaterMiner behind the exisiting trash screen of your municipal WWTP or at your lagoon.  The WaterMiner will scalp off the gas companies required flows, for a fee due to the ...

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