vertical surface aerator Articles

  • 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.

  • Hydraulic model comparison of vertical-flow regimes in constructed wetlands

    Vertical-flow treatment wetlands have come into use because of their ability to provide highlevel secondary and tertiary wastewater treatment at a fraction of the land use of horizontal subsurface flow or free water surface wetlands. The flow regime typically selected is vertically downward, allowing wastewater to infiltrate through the system by gravity. However, recent research suggests that ...

  • Monitoring of typical pumps and aerator in a water treatment plant - Case Study

    Equipment, Context: Surface aerator:Vertical equipment, gearbox associated very high cost for wired solution, aggressive environment, very few visual and periodical inspections. Centrifugal pump: Located underground in concrete basement, busy area, pipes and metal structure all around. Effluent pump: Vertical equipment, ...


    By Wi-Care

  • Dynamic Draft Tube – Deep Oxidation Ditch Technology

    Deep oxidation ditches and aeration basins are beneficial, permitting more water to be processed on a given surface area. However, standard vertical shaft aeration rotors limit oxidation ditches and aeration basins to an operating depth of no more than 4.5 meters (15 feet). The Dynamic Draft Tube Aeration Rotor overcomes the shortcomings of existing aeration rotors permitting operation of ...

  • Estimation of shear stress working on submerged vertically set hollow fibre membrane in MBRs

    This study is aimed at elucidating the mechanism by which rising air bubbles induce shear stress on the surface of hollow fibre membranes in submerged membrane bioreactors (MBRs). Shear stress working on vertically set hollow fibre membrane surfaces caused by aeration was measured directly using a two-direction load sensor connected to one hollow fibre at the centre of the ‘vegetation’ of the ...


    By IWA Publishing

  • Daf Designs - Three critical dissolved air flotation design parameters for Successful aeration of Wastewater are described.

    Today's wastewater managers and technicians routinely encounter a variety of clarification situations. Such encounters may be an opportunity to improve performance of an existing dissolved air flotation (DAF) system or to help in selecting a new unit. Through application of a critical analysis, managers and technicians will find their water clarification results will be improved in the long term. ...

  • A perfect pair: SBR designs & advanced aeration technology

    Conventional sequencing batch reactors (SBRs) that utilize diffused-air networks have existed in the U.S. for about three decades now. The reliability of controls and instrumentation has significantly improved in the last 10 to 15 years, and as a result, SBR plant designs are becoming more widely accepted. The attractiveness of their compact layout and ease of operation has also helped increase ...

  • New Mounting System Allows for Easier and Safer Aeration System Maintenance

    Featured in Environmental Science & Engineering Magazine, February 2018 Edition ...

  • Common Treatment Technologies for Fuels in Ground Water, Surface Water, and Leachate

    It may be necessary to know other subsurface information to remediate fuels in ground water. Treatability testing to characterize contaminant biodegradability and nutrient content may be needed for any biodegradation technology. A subsurface geologic characterization would be particularly important to characterize the migration of NAPLs. Recovery tests are usually necessary to design a ...

  • Triton solves bulk of the problem case study

    The Dubai Investments Park (DIP) wastewater treatment plant (WWTP) is located about 20 miles south of the Burj Khalifa – the world’s tallest building. The oxidation ditch activated sludge plant recently found itself strained by filamentous sludge bulking likely caused by high organic loads, high summer temperatures and inevitable low dissolved oxygen. The problem was easily ...

  • Aire-O2 Triton Solves Bulking Problem

    The Dubai Investments Park (DIP) wastewater treatment plant (WWTP) is located about 20 miles south of the Burj Khalifa – the world’s tallest building. The oxidation ditch activated sludge plant recently found itself strained by filamentous sludge bulking likely caused by high organic loads, high summer temperatures and inevitable low dissolved ...

  • Environmentally friendly sequencing batch reactor design keeps noise, energy & capital costs low

    Perry Township in Fayette County, Pennsylvania is one of the first SBR plants to utilize a surface mounted process aerator/mixer, which is a significant improvement over the traditional diffused air network designs. The new layout offers substantial capital investment savings as well as significant reductions in noise, operations/ maintenance, and energy consumption. KLH Engineers, Inc., ...

  • Performances and fouling control of a flat sheet membrane in a MBR pilot-plant

    This paper deals with the performance and the optimisation of the hydraulic operating conditions of the A3 Water Solutions flat sheet membrane technology in a MBR pilot-plant to achieve a satisfying fouling control and also a reduction in the required aeration. Two vertically stacked modules were tested at pilot-scale at Anjou Recherche under typical biological operating conditions (mixed liquor ...


    By IWA Publishing

  • SBR keeps noise, energy & capital costs low - Case Study

    Pennsylvania is home to one of the first Argos SBR plants to utilize a surface mounted process aerator/mixer, which is a significant improvement over the traditional diffused air network designs. The new layout offers substantial capital investment savings as well as significant reductions in noise, ...

  • Gas composition of sludge residue profiles in a sludge treatment reed bed between loadings

    Treatment of sludge in sludge treatment reed bed systems includes dewatering and mineralization. The mineralization process, which is driven by microorganisms, produces different gas species as by-products. The pore space composition of the gas species provides useful information on the biological processes occurring in the sludge residue. In this study, we measured the change in composition ...


    By IWA Publishing

  • SolarBee Technical Bulletin

    A. SOLARBEE OVERVIEW 1. Origin of the SolarBee. Pump Systems, Inc. (PSI) developed, built and installed its first solar powered mixer in Dickinson, ND, in the summer of 1998. It was installed into a 30 acre x 13 foot deep municipal wastewater reservoir which had a long history of toxicity associated with ammonia, odor, and stratification problems. In six weeks the entire reservoir cleared up to ...


    By Medora Corporation

  • The Re-habilitation of 43 Year Old Waste Lagoons

    In 1967 the City of Concordia, MO built a segmented lagoon system to handle the small town's waste requirements. The main industry in Concordia is a Tyson renderings plant, and the lagoon system was designed to also handle that plant's final waste and water polishing requirements. The lagoon system was a relatively standard design, consisting of an 18.7 acre primary lagoon, a 5.6 acre secondary, ...


    By Reliant Water Technologies

  • Water mixing in waste lagoons

    Man-made lagoons have been used worldwide for the treatment of domestic and industrial wastewater, it seems, forever. All waste lagoons were first designed and thoughtfully planned considering their locations, soil makeup, and waste reduction processes prior to being implemented. The biological process of organic waste reduction is always a consideration of waste lagoon designs. There are three ...


    By Reliant Water Technologies

  • 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 ...

  • Sustainable, Low-maintenance Disinfection for Onsite Systems

    Most of the regulations applicable for onsite wastewater treatment system are based on the use of native soil for effluent dispersal. However, there are more and more situations where dispersal of effluent in native soil is impossible: repairs of existing systems on undersized lots for implementation of required dispersal fields: sites located in soils having low permeability: or where the ...


    By Premier Tech Aqua

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you