lake aeration Articles

  • Removal of volatile organic sulfur compounds by aeration during algae-induced black blooms in shallow lakes

    High levels of volatile organic sulfur compounds (VOSCs) have frequently been detected during algae-induced black blooms, which pose an ecological threat to water bodies and their surrounding residents. In this study, aeration was applied to remove the VOSCs after the outbreak of a black bloom. The removal efficiencies under different aeration rates (A1 (0.06 m3-air min−1 ...


    By IWA Publishing

  • 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

  • Case study - Crystal lake wastewater treatment plant

    Challenge: The City of Crystal Lake is located about 45 miles northwest of Chicago with a population of nearly 45,000 people. Like many wastewater treatment plants, urban sprawl and suburban development puts the Crystal Lake Wastewater Treatment Plant near a host of commercial and residential neighbors, including a high school immediately west of the plant. Plant managers were very ...


    By OMI Industries (OMI)

  • Supplier profile: Aeration Industries Int’l. Inc.

    Pollution Engineering recently spoke with Aeration Industries co-founder and President Dan Durda. Mr. Durda co-founded the company, which celebrates its 30* anniversary this year, with his father, Joseph Durda, in Minneapolis, Minn. Known as the land of 10,000 lakes, a healthy fish population was very important to in-state residents. The company's first products were thus designed to reduce the ...

  • Thermal stratification - Destroyer of healthy pond and lake ecosystems

    IT is early spring in a small reservoir which supports an exclusive condominium and golf coursa development. At and near the surface of the pond, in the layer called th: epilimnion, microscopic plants and animals (phytoplarikt< in and zaoplankton) feed on each other and are fed on in turn by small fish and other animals. Wind and wave action at the surface causes oxygen from the air to be ...


    By EP Aeration

  • Pulp and paper mill aerated lagoon phosphorus optimization

    The Domtar (formerly Weyerhaeuser) Kamloops, BC bleached Kraft pulp mill discharges treated process wastewater to the Thompson River. The River and downstream Kamloops Lake have historically been identified as nutrient sensitive, with phosphorus contributing to algal growth. The BC Ministry of the Environment required that the mill perform a phosphorus optimization study to minimize phosphorus ...

  • Impacts of Advanced Tertiary Treatment on the Nitrogen Cycling of a Hypereutrophic Lake: A Case for 303(D) Delisting

    ABSTRACTThe water quality of Onondaga Lake, a 12 km2, dimictic, water body located in central New York State, has been compromised by a 100-year history of municipal and industrial pollution. The Syracuse Metropolitan Wastewater Treatment Plant (Metro), an 85 MGD tertiary treatment facility serving the City of Syracuse and surrounding area, discharges to the lake and historically accounted for ...

  • Durability of changes in phosphorus compounds in water of an urban lake after application of two reclamation methods

    The study was conducted on Długie Lake (area 26.8 ha, maximum depth 17.3 m), located in the town of Olsztyn, in north-eastern Poland (the Masurian Lake District). For 20 years starting in the 1950s, Długie Lake was used as a receiver of raw domestic and storm sewage in quantities oscillating between 350 and 400 m3 day–1. This led to complete degradation of the lake, ...


    By IWA Publishing

  • 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 ...

  • Fresh Ideas for Fresh Water: Okeechobee Utility Authority`s Surface Water Treatment PLant Uses Innovative Technology to Achieve High Quality Drinking Water from Lake Okeechobee

    ABSTRACTThe goal of this project was to expand Okeechobee Utility Authority’s (OUA) Surface Water Treatment Plant while meeting the challenges of limited space, raw water quality, available capital, and new EPA regulations. The preliminary engineering, consisting of site visits, pilot studies, and research, resulted in an innovative design for surface water treatment. This design combines several ...

  • Case Study: Turun Kakskerta

    The initial situation The condition of the Kakskerranjärvi Lake has worsened over the past decades, mainly due to nutrients produced by agriculture and housing. The lake has been restored using aeration already since 1987. The Kakskerranjärvi advisory board and protective society decided to improve aeration in the lake. It was verified that the nutrients contained in the basal sediment ...


    By W-Rix Ltd

  • Case study - Singapore gardens an Environmental sustainability showcase

    Opened in spring 2012, Gardens by the Bay features an aquatic ecosystem with sustainable water cycles Singapore government officials’ vision to become a “city in a garden” came to fruition by redeveloping Marina Bay and boldly allocating prime land and a hefty budget for that purpose. Years of construction later, the Gardens by the Bay officially opened in the spring of ...

  • Prevent Fish Kill in the Spring

    Pond Deicing Can Help Prevent Fish Kill Keeping the pond open will help keep oxygen in the water, attract water fowl and help prevent fish kills in the spring. The most common cause of fish kills is suffocation due to lack of dissolved oxygen. Most dissolved oxygen is produced by algae and aquatic plants through photosynthesis. A lesser but also important source of oxygen in water ...


    By Keeton Industries, Inc.

  • Oxygen, the fix for pond problems

    Aeration of a water feature should have three main considerations. These include preventing thermal stratification, balancing the dissolved oxygen levels throughout the water column from the sludge or benthic layer to the surface and balancing temperature levels throughout the water column. Although oxygen transfer from certain methods may be significant, the greatest amount of oxygenation takes ...


    By EP Aeration

  • Case study - A Sustainable system to Weather all seasons case study

    Aerator upgrades help wastewater treatment plant survive cold Vermont winters More than two decades ago, cold Vermont winters brought a small Wastewater Treatment Facility to a halt with brush rotor icing problems. A major upgrade that included the Aire-O2® aspirator aeration system ...

  • Is Water RunOff Effecting my Pond?

    What is Water RunOff? Runoff is precipitation that did not get (infiltrated) absorbed into the soil, or did not evaporate, and therefore made its way from the ground surface into places that water collect. Runoff causes erosion, and also carry chemicals and substances on the ground surface along to the ponds, lakes and rivers where the water ends up. ( ...


    By Keeton Industries, Inc.

  • Case study - Cost-efficient ditch provides a sustainable solution

    City needed a system that would weather the Upper Peninsula’s harsh winters This Wastewater Treatment Plant in Michigan sits on the shores of rugged and picturesque Lake Superior in the state’s Upper Peninsula. When the city needed to replace an aging system, they chose ...

  • BCTMP Mill effluent treatment plant

    Location: Slave Lake, Alberta Owner: Slave Lake Pulp Corporation Description: A greenfield 130,000 ADMT BCTMP mill using Aspen as wood furnish. The high strength effluent, with a BOD5 strength of up to 6,000 mg/L (35 t/d) and flow of 6,300 m3/d, is treated by a five day extended aeration activated sludge process. This represented the first ...


    By NovaTec Consultants Inc.

  • Designing for algae proliferation in a new reclaimed water reservoir

    ABSTRACT Forest Lake reservoir in Pebble Beach, California is a former potable water reservoir that has been converted to a reclaimed water reservoir. The reservoir fills during the winter months and stays full throughout the spring and then is gradually depleted during the summer months. Detention times can range from 2 to 8 months. The long detention times along with other factors provide ...

  • Elverom R.A. - Municipal RBC Retrofit

    Elverom R.A. - a Municipal RBC Retrofit The Challenge:  Nordre Land Kommune - Elverom is a municipality located in Norway approsimately 14 miles North of Oslo.  Elverom had two Rotating Biological Contactors (RBC's)  which did not work properly, were noisy and had odor issues.  The required maintenance for the RBC's had become overwhelming.  Elverom wanted to change over ...


    By Biowater Technology

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