water clarification Articles
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Raw water clarification by flotation with microbubbles and nanobubbles generated with a multiphase pump
Raw water clarification by flotation was studied by injecting air into a centrifugal multiphase pump to generate microbubbles (MBs) and nanobubbles (NBs). Measurements of gas dispersion parameters were performed and optimal conditions were obtained using a pump pressure of 4 bar. Values showed a bubble Sauter diameter of 75 μm, an air holdup of 1.2%, a bubble surface area flux of 34 s−1 and ...
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Lake Remediation - Water Clarification - Case Study
Synopsis: The Dosing of Bio Organic Catalyst has been started in the Lake The automatic Dosing has been ongoing for over four months starting from January 2022 and there is improvement in the water clarity. The aquatic life in the lake is being maintained and no chemicals are added to the water to keep it aesthetically clean. The water at the lake is pumped from various lifting stations across ...
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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. ...
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Flotation in water and wastewater treatment and reuse: recent trends in Brazil
This paper summarises environmental applications of conventional and unconventional flotation to remove pollutants from waters. Emphasis is given to the design features of innovative inline reactors, namely the Flocs Generator Reactor and Flocculation-Flotation, and their applications for the flocculation and flotation in solid-liquid separations involving water (and wastewater) treatment and ...
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Coagulation and flocculation in water and wastewater treatment
Coagulation and flocculation are an essential part of drinking water treatment as well as wastewater treatment. This article provides an overview of the processes and looks at the latest thinking. Material for this article was largely taken from reference (1). Coagulation and flocculation are essential processes in various disciplines. In potable water treatment, clarification of ...
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Potato Flume Water 1
This client transports potatoes from their receiving dock to the processing area of the plant in a water flume. This process removes the dirt from the fields. The pH was 6.3 and did not require pH adjustment. The sample was tested with I, H, and K and it was determined that the K was the best product for clarity, reduced dosage and floc size. The samples were treated with 0.13 grams of Floccin-I, ...
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An assessment of static and dynamic models to predict water treatment works performance
The relative accuracy of static and dynamic water treatment works (WTWs) models was examined. Case study data from an operational works were used to calibrate and verify these models. It was found that dynamic clarification, filtration and disinfection models were more accurate than static models at predicting the final water quality of an operational site but that the root mean square errors ...
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Car wash wastewater treatment and water reuse – a case study
Recent features of a car wash wastewater reclamation system and results from a full-scale car wash wastewater treatment and recycling process are reported. This upcoming technology comprises a new flocculation–column flotation process, sand filtration, and a final chlorination. A water usage and savings audit (22 weeks) showed that almost 70% reclamation was possible, and fewer ...
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Sustainable sludge handling for the 21st Century
Purification of municipal and industrial waste waters leads to the generation of a residue-called “excess sludge”. This material when mechanically dewatered is typically 75-90% water. The balance of the dewatered sludge consists of organic compounds (solid waste, biomass) and inert materials (sand, salts, and metals). These sludges have been to date dehydrated to reduce the aqueous fraction ...
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What Is Dissolved Air Flotation?
In dissolved air flotation (DAF), fine bubbles attach themselves to suspended matter in a liquid, floating them to the surface for removal Dissolved air flotation (DAF) is a water treatment technology often used for the pretreatment of source water, but what exactly does it entail and how does it fit in with other technologies? DAF is a type of coagulation-flocculation technology typically ...
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Removal of Tramp Oil with an Oil Skimmer from Cooling Water in a Steel Mill - Case Study
Acchieving Process Optimisation and Cost Reduction The Problem The cooling water system at a steel rolling mill is heavily contaminated with tramp oil due to various oil leaks. Small amounts of oil and very viscous grease come from the lubrication of the roll bearings. Hydraulic systems leak small but continual amounts of hydraulic oil into the cooling water system. Burst hoses or damaged piping ...
By Friess GmbH
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Ceramic Membrane Ultrafiltration Technology
Structure of Ceramic Ultrafiltration Membrane Ceramic Ultrafiltration Membrane has excellent chemical corrosion resistance. It is suitable for operation in 0-14 pH environment and oxidation resistance. It can be cleaned and regenerated with strong oxidants such as high NACIO content. The ceramic membrane is made of - A1O 2/ZrO2. The pore size of the membrane is less than 50 mm. The membrane tube ...
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Reusing water for industrial processes and irrigation in Saudi Arabia
Water is a scarce resource in Saudi Arabia and the public administration and private companies implement water reuse whenever possible. A reverse osmosis plant installed in the Eastern Province of Saudi Arabia helps to treat industrial waste water streams to quality levels that permit water reuse for industrial applications and irrigation. Kemira KemGuard antiscalant is used to prevent deposit ...
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Influence of water compositions on fouling of plane organic membrane in frontal filtration: application to water and wastewater clarification
The aim of this study was to evaluate and quantify the filterability of suspended/soluble organic and suspended inorganic matter in a condition without and with chemical conditioning on membrane fouling using cake filtration model. The experiments were conducted with different feed water concentrations under a given TMP (0.2 to 0.5 bar). The fouling potential was examined and described in terms ...
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How to use municipal water in a proper way
From last 100 year, numbers of water Technology Companies connected with municipal for waste disposal. Lots of people are used to throw their dirt into the sewage. Some waste material may melt, but not all are melted so because of this dirt objects the water of the sewage become polluted. Numbers of USA based companies which provide services to clean the waste material from the municipal. Using ...
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Industrial level cartridge filter – design, quality and description!
Cartridge filters refer to a simple piece of tubular filtration equipment which is designed for various industries for filtration requirements. The cartridge filters are most commonly used for filtration of water from all particles, chemicals, and other impurities. The cartridge filters are used to purify liquids, solvents, and water; it is designed to remove submicron particulates up to the size ...
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Development of polyethersulfone and polyacrylonitrile hollow fiber membranes for clarification of surface water and fungal enzyme broth
Hollow fiber membranes are of great commercial interest with several applications at the forefront of research to carryout bioseparations, drinking water purification, wastewater treatment besides liquid phase separations and gaseous separations. An experimental study was carried out to synthesize hollow fiber membranes from polyethersulfone (PES) and polyacrylonitrile (PAN) polymers to ...
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Leaching of additives from construction materials to urban storm water runoff
Urban water management requires further clarification about pollutants in storm water. Little is known about the release of organic additives used in construction materials and the impact of these compounds to storm water runoff. We investigated sources and pathways of additives used in construction materials, i.e., biocides in facades' render as well as root protection products in bitumen ...
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Municipality of Saint-Claude, Quebec case study
In Quebec, the municipalities must make sure that their rejections of sewerachieve the goals applied to the receiving medium. The Rotating BiologicalReactor (RBR), developed by the biological processes division of H2OInnovation, showed its effectiveness during more than one year testingproject, which contribute to the obtaining of the Standard Technology (CF-1) certification allowed by the Quebec ...
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Analysis of Epichlorohydrin in Drinking Water Using the Lumin P & T Concentrator
Abstract Epichlorohydrin (ECH) is a versatile starting material in the production of drugs and polymers and is also used as an insect fumigant and solvent for organic synthesis reactions. ECH-based polymer pipes are widely employed in the production of drinking water. Due to its extreme reactivity and toxicity, many nations have begun imposing limits on the amount of ECH allowable in drinking ...
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