Water Chemicals Dosing Articles

  • 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

  • Quilicura, Chile Arsenic Reduction - Case Study

    Quilicura, Chile Arsenic Reduction Quilicura is a municipality located in the Santiago Metropolitan Region in Chile. Well #3 has a flow of 1600 gallons per minute (100 liters per second). The well has a high concentration of arsenic that fluctuates between 0.040 mg/L and 0.060 mg/L, well above the World Health Organization standard of 0.010 mg/L. In addition to the high arsenic ...

  • BAIONI supply complete dewatering centrifuge system for APS Ltd

    Situated near Slough, in Berkshire, Aggregate Processing Solutions (APS) is operating a washing plant where Baioni has recently supplied a centrifuge system to complement the whole existing plant. Baioni has boosted the capacity of its decanter centrifuges range to pave the way for further improvements in waste ...


    By Baioni Crushing Plants Spa

  • Modular Reed Bed - Case Study

    The modular reed bed is an award winning, innovative solution for small footprint tertiary treatment. This case study follows the implementation of this technology on a small and remote sewage works which was overloaded during high rainfall. This project saved 91% in costs for the effected utility (which had a budget of £300k for the project) and provided a reduced health and safety risk ...


    By Greener Waste Technology

  • Dewatering optimization with in-line and real-time measurement of polymer: results from full-scale treatment plants

    Full-scale testing was carried out at two wastewater treatment plants to determine whether residual polymer concentration, measured by filtrate and centrate absorbance at 191 nm, can be used to identify the optimum polymer dose and achieve in-line and real-time dewatering optimization. The first plant uses high speed centrifuges and the second plant uses belt filter presses for dewatering. ...


    By IWA Publishing

  • Atomic Layer Etching – Changing the Art of the Possible

    The society of vacuum coaters (SVC) deserves to be better known. It was founded in 1957 during a surge in the use of vacuum coating techniques such as sputtering and evaporation. The techniques go back a very long way: that man Edison filed a patent for coating phonograph cylinders in 1892 (It will never catch on). Did you know that the shiny surface inside your crisp packet is a vacuum ...


    By Oxford Instruments plc

  • Microsieving in primary treatment: effect of chemical dosing

    Primary and chemically enhanced primary wastewater treatment with microsieving (disc or drum filtration) was studied at the large pilot scale at seven municipal wastewater treatment plants in Europe. Without chemical dosing, the reduction of suspended solids (SS) was (on average) 50% (20–65%). By introducing chemically enhanced primary treatment and dosing with cationic polymer only, SS ...


    By IWA Publishing

  • Partech Water Instruments Case Study: Landfill Turbidity and Dosing Control - Case Study

    Set in one of Devon’s most beautiful river valleys Deep Moor is a haven for aquatic wildlife and therefore the site needs to be careful not to have any detrimental effects on the environment. Partech have been working closely with Greenacre Pumps of Newton Abbot in order to provide an extremely reliable and cost-effective dosing system. The best things about Partech’s Turbidity and ...


    By Partech (Electronics) Ltd.

  • Factors affecting trihalomethane formation and speciation during chlorination of reclaimed water

    A hybrid process with membrane bioreactor (MBR) and powdered activated carbon (PAC), PAC/MBR, was used for real municipal wastewater treatment and reuse. The roles of chlorine dose, contact time, pH and bromide in trihalomethane (THM) formation and speciation during chlorination of the reclaimed water were investigated. Total trihalomethane (TTHM) yield exponentially increased to maximum with ...


    By IWA Publishing

  • Removal of natural organic matter (NOM) from an aqueous solution by NaCl and surfactant-modified clinoptilolite

    Zeolitic tuffs are found in different parts of the world. Iranian zeolite is a low-cost material that can be frequently found in nature. Surfactant-modified zeolite (SMZ) can be used for the adsorption of natural organic matter (NOM) from aqueous solutions. The adsorption study was conducted to evaluate the adsorption capacity of SMZ; furthermore, the effects of contact time, initial pH, and the ...


    By IWA Publishing

  • Chemical dosing and blending - the role of precision actuators

    Overview Chemical dosing is the introduction of a measured quantity of a chemical into a process fluid so that a chemical reaction occurs in the process fluid or a particular blend of fluids is achieved. ...


    By Rotork plc

  • Helping York Brewery keep the beer flowing case study

    If the unexpected happens to your expensive and essential equipment, where do you turn to when working capital is at a premium? Typically, businesses seek to prolong the lifespan of all their capital equipment with well planned maintenance schedules. But if a costly breakdown occurs and replacement is the only option, leasing can offer an effective outlet for offsetting such unforeseen ...


    By Byworth Boilers

  • Quilicura, Chile Well #3 - Case Study

    Quilicura is a municipality located in the Santiago Metropolitan Region in Chile. Well #3 has a flow of 1600 gallons per minute (100 liters per second). The well has a high concentration of arsenic that fluctuates between 0.040 mg/L and 0.060 mg/L, well above the World Health Organization's standard of 0.010 mg/L. In addition to the high arsenic concentration, the site has challenges with pH that ...

  • Verder UK Ltd Chemical Dosing Open Day

    Verder UK Ltd will be hosting an open day allow all customers and those looking for a chemical dosing solution to see first-hand how the Verder Project Team can meet their requirements. ...

  • Kinetic modelling approach as a decision support tool for chloraminated distribution systems

    Disinfection and distribution system management of chloraminated systems can be a challenging task for water operators due to the complexity of chloramine chemistry. Formation of chloramines and maintenance of a suitable disinfection environment requires careful control of several operational parameters at the plant and at different locations along the distribution system. A mathematical model ...


    By IWA Publishing

  • City of Stromsburg, Nebraska - Case Study

    In May 2011, AdEdge Water Technologies was selected among other vendors by Miller & Associates to supply a turnkey arsenic and manganese treatment system for the Village of Stromsburg, Nebraska. Arsenic levels in the water ranged from 0.0178 mg/L to 0.0276 mg/L and the manganese levels fluctuated between 0.05 mg/L and 0.12 mg/L, well above the EPA maximum contaminant levels of 0.010 mg/L ...

  • South Carolina - truck stop case study

    The Kangaroo/Pantry truck stop is located at a busy intersection in Round 0. South Carolina where three state roads meet. Because of it's rural setting, it is a great place for truck drivers to fuel up their trucks and themselves anytime around the clock. The fried chicken cooked here is well known for miles around. So when the wastewater system failed and threatened to shut down this rural oasis ...


    By Quanics Incorporated

  • New Inspection Facility

    CPS was awarded the contract to design and build a new inspection facility for a specialist alloy manufacturer. The contract included the design and construction of a new production building, electrics and processing equipment. The building works included the design and construction of a new building complete with 6 hoist overhead crane, production office and bunding with chemical resistant ...

  • Case history - Thai Honda Colloid-A-Tron treatment for compressor aftercoolers

    Thai Honda, has operated in Bangkok since 1965, manufacturing automobiles, motorcycles & power tools for the Asian market The Problem A series of 220 KW air compressors and air dryers generating compressed air which is used to power various equipment throughout the plant. Due to the energy produced the equipment generates a large amount of heat and cooling water is ...

  • Client : A successful food and drink manufacturing company

    Job Title : Replacement chemical dosing pipework Area : Chichester and Selsey, West Sussex The client had a problem with leaking Citrus Acid and Sodium Hypochlorite on their food preparation production line. New uPVC pipework was installed and re-routed to eliminate further damage from foot traffic and catchpots were added at strategic points to collect ...


    By WES Ltd / Weschem Ltd

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