chemical water treatment Articles

  • Online Chemical Oxygen Demand for Treatment Optimization - Case Study

    A wide variety of products are made in the chemical and pharmaceutical manufacturing industries, that require large volumes of chemicals, materials, and substances that are used throughout process operations. Waste water from these facilities typically include contaminants, toxins, nutrients, and organic content that presents challenges with regards to treatment. A major UK based chemical ...


    By MANTECH

  • Crumbling Concrete Water Networks Linked to Common Water Treatment Additive

    Concrete distribution and sewer networks are being corroded at an alarming rate partly because of a commonly used additive in the domestic drinking water and wastewater treatment process according to published reports in the journal Science. In countries throughout the world from industrialized nations like Australia and the USA to developing nations like Colombia, Ghana and the Philippines, the ...

  • The Internet of Water Is Saving Lives While Battling Pollution

    The Problem A condition known as Legionnaires' disease has made headlines after it killed a dozen people in Flint, Michigan in 2014 and 2015 and sickened hundreds in  ...


    By Griswold Water Systems

  • Stop the hit and miss in coagulation-flocculation: AppliTek’s charge density analyzer to reduce polymer dosing

    Specialist manufacturer AppliTek NV has the pleasure to announce its latest analytical solution, called EZ-Charge®, for reducing the potentially skyrocketing costs that come with controlling the amount of suspended solids in waste water treatment. The novel water analyzer has been developed in cooperation with AQRatio (Germany), a company specialized in sewage sludge analysis and control. ...


    By AppliTek NV

  • Do You Need a Microfiltration or Ultrafiltration Membrane System for Your Plant?

    Determining whether or not an industrial plant needs a microfiltration (MF) and/or ultrafiltration (UF) membrane system isn’t always as straightforward as it seems. While these systems are not essential for every industrial process, when thoughtfully implemented within an intake, process, or waste stream, they can go a long way in improving a facility’s efficiency and/or cutting ...


    By SAMCO Technologies, Inc.

  • Looking Beyond Chemical Water Treatment Case Study

    When you think of an environmentally friendly company, a steel processing plant does not typically come to mind. However, Stripco Inc. of Mishawaka, IN, a manufacturer of production-ready, cold-rolled steel coils, is the exception. In August of 1995, Stripco made a wise decision that also proved to be cost-effective and environmentally- friendly when they installed a Superior Environmentalist ...

  • Catalyst-Based Non-Chemical Water Treatment

    Catalyst-Based Device Reduces Calcite Buildup, Requires Minimal Maintenance According to the US Geological Survey, more than 85 percent of the United States has hard water.1 In plumbing, hard water leaves calcite deposits that restrict water flow by occluding pipes. In water heaters, calcite coats heating elements, causing them to overheat and eventually fail. Standard approaches to ...

  • In Situ Physical/Chemical Treatment for Ground Water and Leachate

    The main advantage of in situ treatments is that they allow ground water to be treated without being brought to the surface, resulting in significant cost savings. In situ processes, however, generally require longer time periods, and there is less certainty about the uniformity of treatment because of the variability in aquifer characteristics and because the efficacy of the process is more ...

  • Whitepaper: Chemical-physical Water Treatment, Filtration and Flocculation

    Introduction In water treatment plants chemical-physical processes play an essential part in the process chain. They are successfully employed in the pre- and post-treatment of waters of different origins, as well as of other process liquids. In this regard the removal of particles by filtration is a central step. Classical filtration processes are used for particles ranging from ...


    By EnviroChemie GmbH

  • Water and Wastewater Treatment Chemicals: World Market Report

    Provides continually updated analyses and forecasts for 11 product categories including activated carbon, chelates corrosion inhibitors, defoamers, ion exchange resins, inorganic flocculants, organic flocculants, oxidizers and biocides, pH adjustors, and scale inhibitors in 80 ...


    By The McIlvaine Company

  • "A Non-Chemical Water Treatment for Cooling Towers"

    Untitled Document Introduction This paper will describe a case study of a ...


    By Dolphin WaterCare

  • Sustainable wastewater treatment chemicals in a dairy

    Problem/Definition Atana Ltd has been tasked in reducing sludge generation produced at the sites effluent plant by introducing a new chemical regime. This would bring considerable savings on their daily running costs; reduce the need for hazardous substances and prevent any corrosive issues through the removal of inorganic chemicals. The plant also has consent issues with FOG and ...


    By Atana Limited

  • Ex Situ Physical/chemical Treatment for Ground Water, Surface Water, and Leachate

    The main advantage of ex situ treatment is that it generally requires shorter time periods, and there is more certainty about the uniformity of treatment because of the ability to monitor and continuously mix the ground water. Ex situ treatment, however, requires pumping of ground water, leading to increased costs and engineering for equipment, possible permitting, and material handling. ...

  • Chemical-Free Treatment of Recirculating Water Using Pulsed-Power

    Untitled Document Regulatory pressures and economic considerations require industry to become cleaner, more efficient, and more environmentally benign. Such operating principles advance not only ...


    By Dolphin WaterCare

  • Integrated process control for recirculating cooling water treatment in the coal chemical industry

    This work focused on the integrated process of the recirculating cooling water (RCW) treatment to achieve approximate zero emission in the coal chemical industry. The benefits of fractional and comprehensive RCW treatment were quantified and qualified by using a water and mass balance approach. Limits of cycle of concentrations and some encountered bottlenecks were used to ascertain set target ...


    By IWA Publishing

  • Chemical monitoring strategy for the assessment of advanced water treatment plant performance

    A pilot-scale plant was employed to validate the performance of a proposed full-scale advanced water treatment plant (AWTP) in Sydney, Australia. The primary aim of this study was to develop a chemical monitoring program that can demonstrate proper plant operation resulting in the removal of priority chemical constituents in the product water. The feed water quality to the pilot plant was ...


    By IWA Publishing

  • Perfluorinated chemicals (PFCs) in water purification plants (WPPs) with advanced treatment processes

    A series of perfluorinated chemicals (PFCs) surveys were conducted in two water purification plants (WPPs) having ozonation and granular activated carbon (GAC) filtration processes. In each plant, six different processes samples (source water, influent, coagulation-sedimentation effluent, ozonation effluent, GAC filtration effluent, and final tap water) were collected for two times and eight PFCs ...


    By IWA Publishing

  • Electrocoagulation in Water Treatment

    Although electrocoagulation (EC) is an evolving technology that has for the past 100 years been effectively applied in industrial water treatment, the paucity of scientific understanding of the complex chemical and physical processes involved as well as the limitations (in terms of size and cost) of the needed power supplies in the past, have curbed large scale applications and hindered progress. ...


    By IWA Publishing

  • Chemical wastewater treatment applying a membrane bioreactor (MBR)

    IntroductionAt the current time Membrane Bioreactors (MBR) are the primary focus of wastewater treatment technologies. MBR is a combination of biological activated sludge process for the removal of nutrients and a membrane filtration for separation of biomass and treated water. In industrial wastewater treatment MBRs have proven to be a particularly reliable technique [Cornel et al., 2006]. The ...


    By MICRODYN-NADIR GmbH

  • Water treatment case study

    Wastewater is any water that has suffered in quality by human intervention. Often, wastewater is being treated for re-use as drinking water or for other purposes. As high levels of nutrition are available in these waters, algae may grow rapidly as well as other micro-organisms such as bacteria. Algae can compete for nutrients against the bacteria in charge of sludge reduction and can also clog ...


    By LG Sonic

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