Water Treatment Chemicals Articles

  • Perfectly clean water without the use of chemicals - Waste Water - Case Study

    Wastewater treatment plant successfully cut down costs and environmental impact Thanks to the disinfectant system from Danish Clean Water, the Danish wastewater treatment plant Fredericia Spildevand is now saving yearly 75.000 € and reusing 70,000 m3 wastewater for cleaning – saving both money and drinking water. The employees at Fredericia Spildevand were quite ...

  • Professional Papermaking: New published article about Kurita Europe

    "Professional Papermaking” published a title story about Kurita, including interviews with Thomas Wilhelm (Business Manager Paper Solutions) and Toshinori Maema (Sales Director Europe for Paper Solutions). “Professional Papermaking” is an international magazine with 2 issues per year. Readership is the pulp & paper industry. A new name, but by no means a ...


    By Kurita

  • Research on raw water quality assessment oriented to drinking water treatment based on the SVM model

    Raw water quality variation has a great effect on drinking water treatment. To improve the adaptivity of drinking water treatment and stabilize the quality of treated water, a raw water quality assessment method, which is based upon the support vector machine (SVM), is developed in this study. Compared to existing raw water quality assessment methods, the assessment method studied herein is ...


    By IWA Publishing

  • Experimental paradigm for in‐laboratory proxy aquatic studies under conditions of static, non–flow‐through chemical exposures

    Endocrine‐disrupting chemicals (EDCs) such as 17α‐ethynylestradiol, 17β‐estradiol, estrone, and para‐nonylphenol have been measured in wastewater‐treatment plant effluents, surface waters, sediments, and sludge and have been shown to induce liver‐specific vitellogenin (vtg) messenger RNA in male fathead minnows (Pimephales promelas). The purpose of the present study was to establish minimal ...


    By John Wiley & Sons, Ltd.

  • INNOVATIVE CHEMICALS FOR DETERIORATED RO MEMBRANES

    The new rejuvenation chemical treatment is introduced in this paper. This chemical treatment repairs the deteriorated RO membranes, and recovers the salt rejection ratio immediately. In the past, such kind of rejuvenation methods have been developed and reported only with table test basis and pilot plant test basis as seen in the IVREFERENCES ...


    By Kurita

  • Bioaugmentation treatment of PV wafer manufacturing wastewater by microbial culture

    The wastewater of silicon photovoltaic (PV) battery manufacturing contained polyethylene glycol (PEG) and detergents, which possessed the characteristics of high content of organics and low bioavailability, and then resulted in high treatment costs. To address the difficulties of existing treatment facilities in stably meeting discharge standards, eight tons of microbial culture (consisting of ...


    By IWA Publishing

  • Removal and transformation products of ibuprofen obtained during ozone- and ultrasound-based oxidative treatment

    The oxidation of ibuprofen (IBP) in water was evaluated using oxidative treatments: ozonation, sonication, hydrogen peroxide addition and combinations of these processes. After 20 minutes of treatment, ozone coupled with hydrogen peroxide at pH 7, 15 °C, an ozone dose of 16 mg/L and a hydrogen peroxide concentration of 7.1 mg/L was found to have the highest IBP (95%) and chemical ...


    By IWA Publishing

  • Legionella, water treatment and energy saving

    We can help improve health and safety and increase energy reduction. At the moment you probably keep water temperatures above 60°C and you probably undertake regular chemical or thermal water system treatments and shower head treatments, all to prevent the growth of Legionella in your water system. There are several reasons to do this including legal, safety, ...


    By Aquadron

  • Steel mill saves 200,000 € in closed circuit treatment with Cetamine technology - Case Study

    1. Background One of the largest integrated iron and steel factory in Mediterranean Region established a new blast furnace with a capacity of 2500 m3 and casting capacity of 8500 tons/day. The plant requested a proposal for the flushing of the new closed circuit system with a total volume of 1500 m3.The challenge was the blow down management during the flushing operation as it ...


    By Kurita

  • Kurita chemical deal solves sales dilemma

    The Japanese company has drastically ramped up its presence abroad with its first foreign acquisition in 16 years. The European sales boost will see the overseas chemicals business streak ahead of the facilities division. Kurita Water Industries has made a crucial step away from a sluggish home market in Japan with its first overseas acquisition since buying Hansu Technical Service in 1998. It ...


    By Kurita

  • Verderflex peristaltic pumps replaces mag drive pumps in water treatment

    Verderflex provided a cost effective solution to a Swiss airport that had been experiencing significant problems with their water softening treatment. The local water supply required treatment to prevent scaling in the pipework.  The Challenge The existing treatment system required a salt solution to be dosed from a storage tank close to the pumps ...

  • City of Warm Springs, Georgia - Case Study

    The City of Warm Springs is a small community of approximately 500 residents located in central Georgia. In 2010, water testing found a radium level between 8 - 11 pCi/L and a Gross Alpha level of 25 pCi/L, both above state and USEPA drinking water regulations of 5 pCi/L and 15 pCi/L respectively. Engineering Management Inc (EMI) conducted a pilot test in late 2010 to test a manganese dioxide ...

  • Case study - Sea water treatment for offshore oil & gas pipeline hydrotesting

    atg UV Technology have recently designed and manufactured a state of the art, containerised UV disinfection package for the treatment and removal of SRB's (Sulphate Reducing Bacteria) from sea water. The system incorporates two parallel trains of three SX-635-16 UV Systems in series.  To avoid problems associated with maintenance and corrosion, atg UV Technology manufactured all UV systems, ...


    By atg UV Technology

  • Superior Manufacturing Division, Magnatech Corporation Case study

    15 Years of Saving the Environment Some companies seem to always be ahead of their time. Rather than going with the flow, they choose to step out and try something different. That’s what often leads them to success. L&L Products of Romeo, MI, is one of these mastermind companies. The intellectual wheels of Robert Ligon and Eugene Lane started turning in 1958 after realizing a ...

  • Ozone disinfection: main parameters for process design in wastewater treatment and reuse

    Wastewater disinfection by ozone was investigated at pilot and full scale on different wastewater effluents and two types of ozone reactors. It was demonstrated that water quality and, in particular, suspended solids and organic content strongly influence the required ozone dose for a given level of disinfection. The increase in contact time and residual ozone concentration did not improve the ...


    By IWA Publishing

  • Leading military electrical connector manufacturer - case study

    Application The client designs and builds complex electrical connectors for salt water applications. The connectors are used in underwater communications cables and to make solid electrical connections within nuclear submarines. Each connector is housed in a durable waterproof rubber material with gold and platinum plated eluctors to optimize electrical conductivity and decrease ...


  • 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

  • Alto Lampa, Chile - Case Study

    Fast Facts Contaminant: Arsenic Flow Rate: 800 gpm The residential subdivision of Alto Lampa is a rapidly developing neighborhood located just outside of Santiago de Chile. The community is served by two wells, each with a flow of 800 gallon per minute (50 liters per second), running one at a time. Both wells produce raw ...

  • Shale gas extraction - frac water treatment

    The client The Client is a company which makes part of a Group based in the Eastern Europe and specialized in drilling activities and well services for the exploration/extraction industry. The Client’s needs Shale is a sedimentary rock that is predominantly comprised of consolidated clay-sized particles. Shale gas is produced from organic-rich shale ...

  • Modeling NOM removal by softening in a surface water treatment plant

    Phenomenological models and hybrid phenomenological–chemometric models were developed to predict natural organic matter (NOM) removal based on the real water treatment data from the city of Minneapolis over a 3 year period. The analysis of the modeling results showed that the phenomenological model was able to capture the major variations of NOM removal but it tended to over predict the ...


    By IWA Publishing

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