water mixing system Articles

  • 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

  • Compost in the mix for storm water management

    Bioretention areas, also known as rain gardens, are increasingly being used to capture and treat storm water runoff from impervious surfaces such as roofs, sidewalks and parking lots. These landscaped areas often feature native plants installed in an engineered soil mixture that includes compost. “Bioretention areas or rain gardens are an attractive storm water Best Management Practice (BMP) ...


    By BioCycle Magazine

  • Water layering and full-depth mixing

    How water layering affects tank water quality— and why full-depth mixing is one solution. ...


    By Medora Corporation

  • Impact of incomplete mixing in the prediction of chlorine residuals in municipal water distribution systems

    This paper investigates the mixing phenomena in pipe junctions in water distribution systems. Network simulation models frequently assume that mixing at pipe junctions is complete and instantaneous. In the present study, a series of experiments using tee and cross junctions with varying inflows and free chlorine concentrations were carried out in the Hydraulic Laboratory of the Institute of ...


    By IWA Publishing

  • Mixing at double-Tee junctions with unequal pipe sizes in water distribution systems

    Pipe flow mixing with various solute concentrations and flow rates at pipe junctions is investigated. The degree of mixing affects contaminant spread in a water distribution system, and many studies have focused on mixing at the cross junctions; however, only a few have focused on double-Tee junctions of unequal pipe diameters. To investigate the solute mixing at such junctions, a series of ...


    By IWA Publishing

  • Water Storage Tank Mixing- Active or Passive?

    First off, providing a complete mix for your potable water storage tanks should be a 100% best practice for every tank all the time. Because mixing ensures that no water get “old” and that chlorine from new water entering the tank is spread throughout the whole tank. So mixing not only solves water quality and treatment problems, it helps prevent problems. Since proactive mixing for ...


    By Medora Corporation

  • Potable Water Storage Tanks Need Mixing

    There are more than 50,000 municipal water systems in the United States and most of these systems rely on water towers, above-ground, and below-ground tanks to store their treated potable water. Many operators rely on mixing via normal cycling of water in and out of the tank to limit water age and deterioration of disinfectant chemicals. This reliance on "passive mixing" is not enough in most ...


    By Medora Corporation

  • Gen2Green & Green Field WTP - Projects

    As per Pepsi Cola Bottlers (G2G Process Design Criteria Rev-1) AND Coca Cola Bottlers (TCCC ve ICCC Water Standards Specification, BP-SP-184) ...

  • Top 5 Differences between Micro Pulse LiDAR and Ceilometer Technology

    If you are evaluating backscatter LiDAR sensors for measuring aerosols, cloud vertical structure, and planetary boundary layer (PBL) heights, what factors should you consider in your comparison? It really comes down to a choice between the traditional analog technology used in ceilometers and the more recent advanced technology found in Micro Pulse LiDAR (MPL) sensors. To select the best tool ...

  • Mixed oxidant technology treats water in Rwanda, developing countries

    Plagued by a legacy of civil war, ethnic genocide and the HIV/AIDS epidemic, many rural communities in Rwanda lack access to adequate drinking water. Although many inhabitants purify water by boiling, this time-consuming and energy-intensive practice is impractical for most. A water and power utility provides drinking water to the capital, Kigali City, and all urban centers of Rwanda, while ...

  • Chlorine Residuals In A Newly Mixed Potable Water Storage Tank

    Active mixing is one of the best, most sure-fire methods to maintain water quality in your potable water storage tanks. The following are some key concepts to understand when it comes to newly introduced active mixing and the chlorine residual in your already-in-use tanks.  The Unmixed Tank Condition Without an active mixer in the tank, water quality is dependent on ...


    By Medora Corporation

  • Impact of mixing phenomenon at cross junctions on the variation of total coliform and E. coli in water distribution systems: experimental study

    This study investigates factors that influence the growth and diffusion of microorganism especially total coliform and Escherichia coli (E. coli) in water distribution networks. The experiments were carried out in a laboratory distribution network where different flow directions at junctions, varying inlet flow rates, initial chlorine doses and natural organic matter were ...


    By IWA Publishing

  • A clinoptilolite-PDMS mixed-matrix membrane for high temperature water softening

    A mixed-matrix membrane composed of polydimethylsiloxane (PDMS) as the continuous phase and clinoptilolite, a naturally occurring zeolite, as the active phase has been used to decrease the conductivity of water by more than 80% across the membrane. Testing was carried out using a cross-flow configuration at temperatures as high as 160 °C using a constant transmembrane pressure of 8 bar. The ...


    By IWA Publishing

  • Study of hydraulics and mixing in roof tanks used in intermittent water supply

    Roof tanks are common in low and middle income countries, due to the intermittent water supply. Their hydraulic and water mixing behaviour has not been studied. This paper presents the results of a study on mixing and water demand in roof tanks, based on physical and numerical models. Tracer tests were carried out on a real scale transparent wall laboratory model of a roof tank, and a ...


    By IWA Publishing

  • Effects of mixing on chloramination process

    According to a recent study more than 90 percent of water treatment plants utilizing chloramination for distribution system residuals indicate a certain level of dissatisfaction toward the process performance. One factor that may lead to such dissatisfaction is the inadequacy of mixing when ammonia is added to chlorinated water. If mixing is not instantaneous and uniform, the actual chlorine to ...


    By IWA Publishing

  • With CETCO`s help, oil & water don`t mix - separating oil & water from gas

    One of the USA’s largest providers of midstream natural gas owns and operates 11,300 miles of pipelines, with natural gas gathering systems that cover 14,400 square miles and supply 22 natural gas plants, which have a total processing capacity of 10,250 MMcf/d. This gas transmission company’s onshore and straddle plant assets access natural gas supplies from the Permian Basin, Fort Worth / Bend ...


    By CETCO Energy Services

  • The Right Mix for Clean Air

    Reducing air pollution is an increasingly important topic all around the world. Many governments—also in developing countries—set new limits for emissions such as nitrogen oxides in flue gas. Sulzer offers advanced mixing technology for flue gas cleaning. The installation in a large power plant shows that these high-performance mixers can cope with the most difficult requirements. ...


    By Sulzer Ltd.

  • Mixers and Flowmakers: Mixing mine water precipitate from a Tin Mine in the UK

    Landia (UK) Ltd. was awarded a contract to provide the pre-reaction chambers and sludge holding tanks at Wheal Jane Mine Water Treatment Plant, Cornwall with a total number of 7 submersible mixers. Working conditions are very harsh on this plant where the mixers will be homogenizing sludges in the process of purifying a heavily contaminated industrial effluent. The mixers were supplied in ...


    By Landia a/s

  • How well-mixed is well mixed? Hydrodynamic-biokinetic model integration in an aerated tank of a full-scale water resource recovery facility

    Current water resource recovery facility (WRRF) models only consider local concentration variations caused by inadequate mixing to a very limited extent, which often leads to a need for (rigorous) calibration. The main objective of this study is to visualize local impacts of mixing by developing an integrated hydrodynamic-biokinetic model for an aeration compartment of a full-scale WRRF. Such ...


    By IWA Publishing

  • In-situ stabilization using Shallow Soil Mixing and Deep Soil Mixing

    Of the currently emerging technologies for site remediation, one of the most attractive and economical is in-situ stabilization and/or in-situ fixation of contaminated soils by Shallow Soil Mixing (SSM) or Deep Soil Mixing (DSM). Actually, the soil mixing process is not new. It has been in use as a geotechnical construction process for over two decades. However, its use as a treatment for ...


    By Geo-Con, Inc.

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