Process Water Articles

  • Closed Circuit Coolers: Design with winter in mind

    When outside temperatures fall below freezing, water inevitably forms into ice. Open cooling towers can be susceptible to freezing due to their inherent nature of operation. As a result, ice formation becomes a subject of management, not elimination. Fortunately, there are alternative solutions. Closed circuit coolers are used for a multitude of niche applications, but are ideal for evaporative ...


    By Evapco Inc.

  • Reservoir Management - Online Oil-In-Water Monitor - Case Study

    Background Older generation online oil-in-water (OiW) monitors may suffer from fouling of optics due to scales, soaps, emulsions, sludge, etc., resulting in inaccurate (usually low) concentrations. New generation OiW monitors: Yield more accurate O  iW concentrations Improve accuracy of the OiW measurements, allowing operators to optimize water ...

  • How to prepare for a chemical attack

    It is a shocking and sad reality that chemical attacks are happening in the world today. The threats continue to rise as global tensions become greater. It can only be a good thing to be prepared if one was to occur in your area. The first step in preparation is to understand more about what chemical attacks are. What are chemical attacks? Chemical attacks involve using toxic ...


    By Fast-ACT

  • COOL AS ICE New Canadian-made technology reduces water usage to redefine green cleaning

    Water is one of the most essential human needs. Yet, for something so key to life, hundreds of millions of gallons of H2O are wasted each year on industrial cleaning applications. The ecological impact of this type of consumption is a real concern and has led to the development of an innovative cleaning technology that could potentially replace high-water usage cleaning methods, such as pressure ...


    By Coulson Ice Blast

  • A Dutch first in the polder - Water Board Zuiderzeeland measures flow rates to achieve sustainability

    The Dutch province of Flevoland lies metres below sea-level. That’s why rain and seepage need to be removed from the polder, some 6 metres up. And that’s the reason Flevoland is drained continuously by seven huge pumping stations. The quantity of energy involved in this is as great as the energy consumption of 4,000 households. Water Board Zuiderzeeland has launched the ‘Energy ...


    By Eijkelkamp Soil & Water

  • Replacing brush rotors with AIRE-O2 TRITONS increases flow capacity and reclaimed water availability - Case Study

    Overview In 2012, the Middlebury, Indiana Wastewater Treatment Plant (WWTP) was faced with aging brush rotors and higher loads in their oxidation ditch system. When Mick Reese was hired as Plant Superintendent, the upgrade design was about 90% complete. The full system upgrade included adding an outer ring to the existing oxidation oval, construction of a new clarifier, controls ...

  • Clark county water reclamation - Case study

    Project: Clark County Water Reclamation District Primary Clarifiers 13 & 14 Project Location: Las Vegas, NV Owner: Clark County Water Reclamation District –Main Treatment Plant Engineer: Black & Veatch Corp. General Contractor: MMC Contracting Corp. ...


    By Sauereisen Inc.

  • Clarifier rehabilitation in Clermont, Canada - Case study

    CANADIAN PULP MILL CLARIFIER Rehabilitation & Protection From Chemical Attack When Resolute Forest Products was determining a solution for rehabilitation and protection of their 50,000 square foot concrete clarifier damaged from mild chemical attack and abrasion from their pulping process they contacted MBI Corexcel, a local corrosion-resistant specialized contractor, for ...


    By Sauereisen Inc.

  • 6 Surprising sources of chemical exposure

    6 Surprising sources of chemical exposureWe may be careful with that bottle of bleach, can of paint or the ominous bottle of unknown chemical solution found in the basement. But what about everyday actions that may expose us unknowingly to potentially harmful substances? Read on to find some surprising sources of chemical exposure, and what to do about them. 1 - Shower The ...


    By Allerair Industries

  • Tech Tips: Membrane Preconditioning

    What is membrane preconditioning and why is it recommended to precondition new flat sheet or spiral woundmembranes prior to use? Membrane preconditioning is a filtration step using deionized water as feed solution and is typically ...


    By Sterlitech Corporation

  • Brine concentration

    Customer Canadian company leading producer of specialty metals and chemical products, such as tellurium, cadmium and selenium and related compounds. The German subsidiary fabricates high purity metals dedicated to the thin film solar panel industry. Customer’s needs Finding a solution to concentrate about 4 m3/day of brine waste water coming from the ...


    By EVALED-Evaporator

  • Fuel preparation technology – the latest safety considerations

    The specifications for new fuel preparation technologies are becoming increasingly sophisticated, as industry innovation continues apace. But when it comes to investing in waste shredders that help manufacture cement fuels, which criteria should top the procurement wish-list in 2018? With more than 25 years’ experience in this sector, Peter Streinik, head of UNTHA’s waste shredding ...


    By UNTHA Shredding Technology

  • Special chemical-physical process treats Tata Steel`s wastewater

    Tata Steel Europe manufactures several types of packaging steel. One of the types is Electrolytic Chromium Coated Steel (ECCS). Until recently, a chemical containing chromium-6 was used to manufacture ECCS. Annex XIV of the REACH prohibits the use of chromium-6 with effect from 21 September 2017. It remains possible to apply for an exemption, but only a temporary one. Tata Steel looks to offer ...


    By EnviroChemie GmbH

  • A Closer Look | NOV 2017 Sebright Products with Gary Brinkman

    Sebright Products, a family owned and operated company, got its start in 1984, according to Gary Brinkmann, the company’s director of multinational sales. At the beginning, the company built compactors. Now, it’s “one of the most innovative manufacturers of waste and recycling equipment in the entire world,” Brinkman said. “We are a solution designer that ...


    By Sebright Products, Inc.

  • Reasons You Should Invest in an Arsenic Water Treatment System

    In many areas of the U.S., the element arsenic makes its way into the water supply. This element can have adverse health effects. Although it’s rare that it shows up in large enough concentrations to be fatal, it can still cause problems and should be eliminated. Health Effects Many studies have been done to determine the specific effects of consuming water ...

  • How to Choose the Right Biological Water Filtration System

    There are many different biological treatments of water available. They’re all similar in a number of ways, but share key differences in the specific ways the water is filtered. This article is an informative breakdown of all the different biological water treatment systems that are available and how they ...

  • What are the main indicators of water quality?

    “Water is the driving force of all nature;” so said Leonardo da Vinci. The survival of our planet depends on the availability of water and the condition that it is in. It is therefore vital to make sure that it is able to provide a hospitable environment for those that live in it, and is free from harmful levels of substances for those that drink it. Not ...


    By Aquaread Limited

  • Optimization of aeration conditions in the hybrid process of coagulation-ultrafiltration with air sparging

    To optimize the aeration conditions in the hybrid process of coagulation-ultrafiltration with air sparging, a series of air flow rates under continuous and intermittent sparging were investigated. The water quality characteristics that surrounded membranes, bubble characteristics, fouling resistances, and energy consumption under different aeration conditions were analyzed. The results showed ...


    By IWA Publishing

  • AquaNES: demonstrating synergies in combined natural and engineered processes for water treatment systems

    EU-project AquaNES pursues the concept of combined natural and engineered water treatment systems (cNES) as response to water management challenges. AquaNES,  with participation of microLAN, considers bank filtration (BF), managed aquifer recharge (MAR)/soil-aquifer treatment (SAT), constructed wetlands (CW) and plus engineered pre- and ...


    By microLAN B.V.

  • Revealing causal pathways to sustainable water service delivery using fsQCA

    This study aimed to build on theory and practice regarding the combinations of conditions that influence water service sustainability when external partners are involved. The study investigates 26 well projects that have been implemented in developing countries with the assistance of Engineers Without Borders-USA (EWB-USA). Using past literature on sustainable water service delivery in ...


    By IWA Publishing

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