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

  • 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

  • Cavitation leads to perfect mixes

    Development of accurate classification of cavitation types, as well as any classification, has to be based on a choice of general summary classification signs. For example, it can be different by constructive signs of work parts, by character of a course of process, by cavities types and other general classification signs. In present time distinguish the following types of cavitation: static, ...


    By GlobeCore GmbH

  • 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 Management Ltd

  • 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

  • Cavitation leads to perfect mixes

    Development of accurate classification of cavitation types, as well as any classification, has to be based on a choice of general summary classification signs. For example, it can be different by constructive signs of work parts, by character of a course of process, by cavities types and other general classification signs. In present time distinguish the following types of cavitation: static, ...


    By GlobeCore GmbH

  • 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.

  • Spoil, rubble and a soil-tar mix

    National Grid and Wales and West Utilities recently completed their first joint remediation project at the Aberaman Gasworks following the sale of the Wales and south west of England gas network in 2005. Here Scott Lewis from National Grid and Ashley Griffiths from Wales and West Utilities explain the challenges and processes. The project was undertaken using a stabilisation and solidification ...


  • Additives mixing effect fuel consumption

    Additives are an instrument of fuel operational development properties which can’t be provided with the previous stages of fuel producing. They lead to product correction, instead of participate in the main method of production. Their efficiency is caused by chemical structure, structure of a basic base, mutual influence and additives mixing process. Improvers which affect some parameters ...


    By GlobeCore GmbH

  • Cavitation reactors provide perfect mixing

    Operations of cavitation reactors are based on activation of ultrasonic cavitation in the thin layer, processed liquid pumped over through the reactor as a result is formed stable dispersion of mixed components. On an entry of reactors, liquid is supplying and it has the greatest volume in a received emulsion. Through the second entry is supplying liquid component. Both entry fittings are located ...


    By GlobeCore GmbH

  • Additives mixing effect fuel consumption

    Additives are an instrument of fuel operational development properties which can’t be provided with the previous stages of fuel producing. They lead to product correction, instead of participate in the main method of production. Their efficiency is caused by chemical structure, structure of a basic base, mutual influence and additives mixing process. Improvers which affect some parameters ...


    By GlobeCore GmbH

  • Mixing of Drying Air: Increasing the Absorbency

    High-quality tissue paper is today produced using TAD (through-air-drying) technology, which is widely established as the most efficient drying method to increase bulk and softness in commercial tissue production. In the TAD process, it is essential to ensure uniform temperature distribution in the stream of drying air in order to achieve superior quality in terms of the softness and absorption ...


  • 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 ...

  • 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

  • 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

  • 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

  • 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

  • DBP reduction using mixed oxidants generated on site

    The Safe Drinking Water Act (SDWA) was established by the US Environmental Protection Agency (USEPA) in 1974 to protect the quality of the nation’s drinking water. Although the use of disinfectants in drinking water has drastically reduced disease, these disinfectants can react with material in the raw water and form disinfection by-products (DBPs) that are also hazardous to health. Initially, ...

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