aerator equipment Articles

  • Comparison of Fine-Bubble Aeration Control Concepts with Respect to Energy Efficiency and Robustness. Proceedings WEFTEC.16

    Abstract: The presented study analyzes and compares four standard aeration control concepts for air supply and air distribution in terms of energy savings, controller performance and robustness. Realistic results were achieved by the use of state-of-the-art models for the treatment process complemented by detailed and fully dynamic models for the aeration equipment and the piping network. The ...


    By inCTRL Solutions Inc.

  • Choosing Aeration Blowers

    Introduction Infrastructure spending in the United States has not kept pace with the population growth and many wastewater treatment plants are at peak capacity. The nation's wastewater systems and their ratepayers face a major challenge in funding the expansion, replacement, and maintenance of aging infrastructure over the next several decades. For this reason, plant engineers and ...


    By Kaeser Kompressoren GmbH

  • Performance of Floating Horizontal Aerators in Aerated Lagoons and Oxidation Ditches

    INTRODUCTION When selecting aeration equipment to use for a specific application, issues to address include reliability, serviceability, capital cost, system appurtenances, and cost of operation and maintenance. Another important consideration is oxygen transfer rate (OTR). Horizontal floating aerators have relatively high transfer rates and have been used successfully in aerated lagoons and ...


    By S&N Airoflo Inc.

  • Aerators Enhance Aerobic Digestion Process

    The city of Eden,N.C.,operates an extended aeration process designed for an average flow rate of 13.5 mgd with a mixed liquor suspended solids concentration that typically checks in about 6,000 mg/l. This high biomass concentration is necessary to provide a well-settling sludge and good effluent quality. Further, the plant influent is approximately 40% domestic wastewater and 60% industrial ...


    By S&N Airoflo Inc.

  • Oxygen Transfer in a Biological Aerated Filter

    The City of San Diego (City) operates the Point Loma Wastewater Treatment Plant (PLWTP) which can normally treat up to 240 million gallons per day (MGD) of chemically enhanced primary treated (CEPT) effluent for ocean disposal. The City wanted to understand the performance capabilities of Biological Aerated Filters (BAFs) in treating CEPT effluent to secondary standards. To this end, the City ...

  • Happy Customers, Healthy Business

    As the wastewater treatment industry becomes more competitive, customer service gives businesses the chance to rise above their competitors. Customer service is key in all industries. The water treatment industry is no exception. As the treatment of both drinking water and wastewater becomes a continually more competitive industry, with an ever-growing number of new companies offering ...

  • Get Custom THM Stripping Without Breaking the Bank

    To limit costs, consider site-specific parameters if installing off-the-shelf trihalomethane removal systems. DISINFECTION by-product (DBP) regulatory compliance requires public water systems to achieve total trihalomethane (TTHM) levels of 80 ug/L (ppb) or less for a locational running annual average throughout a community. Often a water treatment plant's most cost-effective approach is to ...


    By Medora Corporation

  • Produced-water Recycling and Energy Reduction for Central Oklahoma

    Enhanced oil and gas recovery (fracturing) techniques and water go hand in hand. Current pressures including limited fresh water sources, transportation, fracturing volume requirements, and disposal costs and restrictions are driving the development of new water management strategies. Recycling and managed biologic treatment of surface water is proving to be a cost-effective, more environmentally ...

  • Coca-Cola Refreshments Bottling Company Needham Heights, MA case study

    The Problem: The Coca-Cola Bottling Company was operating an MBR system that was not performing to maintain the flow rate required for effluent discharge. The Membrane System had rapid flux decline and the tubular membranes were being replaced every 6 months. The Solution: BioprocessH2O supplied a bioFLOW MBR System sized and designed to reduce BOD using a bioFLOW ...


    By BioprocessH2O

  • 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

  • Wastewater lagoons – a new aeration concept

    The use of wastewater treatment lagoons, or stabilization ponds, is a common practice for rural municipalities and industrial facilities. Through the years there have been numerous designs for these ‘sludge settling basins,’ ranging from facultative, partial aerated, and fully aerated systems. But the primary reason for these systems is to utilize relatively shallow earthen ponds, or ...


    By Reliant Water Technologies

  • Sequencing batch reactor

    Sequencing batch reactors (SBR) sequential batch reactors are industrial processing tanks for the treatment of wastewater. SBR reactors treat waste water such as sewage or output from anaerobic digesters or mechanical biological treatment facilities in batches. Oxygen is bubbled through the waste water to reduce biochemical oxygen demand (BOD) and chemical oxygen demand (COD) to make suitable for ...


    By IWA Publishing

  • Sequencing batch reactor

    Sequencing batch reactors (SBR) or sequential batch reactors are industrial processing tanks for the treatment of wastewater. SBR reactors treat waste water such as sewage or output from anaerobic digesters or mechanical biological treatment facilities in batches. Oxygen is bubbled through the waste water to reduce biochemical oxygen demand (BOD) and chemical oxygen demand (COD) to make suitable ...


    By IWA Publishing

  • Oxygen transfer in activated sludge – new insights and potentials for cost saving

    The α-factor has the greatest impact on the calculation of the required standard oxygen transfer rate (SOTR) in activated sludge systems equipped with submerged aeration systems. Knowing the dependencies of the α-factor leads to a better design of the aeration devices and, consequently, to a more efficient use of aeration energy. Applying the current state of knowledge about ...


    By IWA Publishing

  • Distribution and characterization of anammox in a swine wastewater activated sludge facility

    Anaerobic ammonium oxidation (anammox) is a novel biological nitrogen removal process that oxidizes NH4+ to N2 with NO2− as an electron acceptor. The purpose of this study was to examine the potential activity and characteristics of anammox in a conventional swine wastewater treatment facility, which uses an activated sludge system ...


    By IWA Publishing

  • On-Line Nitrate/Nitrite Probes for BNR Process Control

    ABSTRACTReal time nitrogen monitoring plays an increasingly important role for the successful biological nutrient removal at wastewater treatment plants. Though traditionally dissolved oxygen has been the main process control parameter a greater understanding of the biological mechanisms and process conditions like nitrite/nitrate concentrations to achieve lower effluent values becomes necessary, ...

  • The Climb To The Top

    Back in the late 1980’s when market drivers created the cost-effective option of using above-ground circular tanks for industrial activated sludge processes, there were some early valuable lessons for both aeration equipment manufacturers and plant operators. As production plants got away from in-ground basins, one of the more simple innate operational checks became more challenging; ...


    By KLa Systems, Inc.

  • Rehabilitation of the BNR Facilities at the Greenville Utilities Commision Wastewater Treament Plant

    ABSTRACTThe Greenville Utilities Commission Wastewater Treatment Plant (GUC WWTP) is a 17.5 mgd treatment plant designed to meet effluent total nitrogen and total phosphorus limits of 6.0 mg/L and 2.0 mg/L, respectively, through biological nutrient removal. The treatment plant is divided into two separate activated sludge systems; the north and south plants. The treatment plant has consistently ...

  • Case study - Mazzei aeration system solves lagoon odors and high maintenance problems

    The Problem: A large vegetable processing facility was experiencing problems with its lagoon surface aerators. The company’s treatment process includes a collection and screening assembly, two anaerobic stabilization ponds and a 40 million gallon aerated lagoon. The aeration lagoon is used for BOD reduction and polishing before the water is discharged to a near-by creek. Several surface ...

  • Product description of the DO2E aerator / mixer

    DO2E Aerator / Mixers are high-efficiency all welded, heavy-duty PVC devices that are unique in several ways. DO2E’s patented products are designed to pull water from significant depths for aeration and mixing.  By operating with low-pressure ( DO2E utilizes the latest “Green Technology” and continues to set the standards in the Aeration industry. DO2E’s products are ...

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