microbial corrosion test Articles

  • SCORe-CT: a new method for testing effectiveness of sulfide-control chemicals used in sewer systems

    A new method for testing the effectiveness of chemical products for sulfide control in sewers is reported. The method, called SCORe-CT (Sewer Corrosion and Odour Research – Chemical Testing), consists of two specially designed laboratory-scale systems that mimic sulfide production in real rising main sewers, and a multi-phase and multi-facet testing protocol. The monitoring tools/methods include ...


    By IWA Publishing

  • Bacterial biofilms formed in arsenic-containing water: biodeterioration of water network materials

    The immersion of any material in a water system triggers a surface microbial colonization which simultaneously influences the corrosion behavior of the substratum. The present study was focused on the As(V) influence on the biofilm formation and their consequences on the corrosion behavior of different substrata. Commercial materials used in water distribution networks: alloys based on Fe, Zn ...


    By IWA Publishing

  • Case study - Biofouling in cooling basin

    Al Futtaim Cooling district plant incorporated the LG Sonic technology into their chemical treatment program to reduce the biocide consumption in the cooling towers and improve the water quality. The Challenge: Prevent Biofouling and Reduce Chemical Dosage Reduce chemical dosage for water treatment and at the same time controlling factors that may cause problems such as ...


    By LG Sonic

  • The Standard For Total Biomass Measurement in Metalworking Fluids

    Metalworking fluids provide a warm and nutrient-rich environment for growth of bacteria and fungus.  Once microbial growth is established it can contribute to the breakdown of the metal working fluid emulsion and consequently its ability to lubricate metallic surfaces.  Microbes also lower the fluid's pH, leading to corrosion of tool parts and staining of wetted metal surfaces.  ...


    By LuminUltra Technologies Ltd.

  • Investigation of introducing water from an artificial recharge plant to an existing groundwater distribution system

    ABSTRACTThe consequences of mixing water from the Arrenaes Artificial Recharge (AR) trial plant with groundwater from existing well fields have been investigated. The potential problems of interest are bacterial regrowth, precipitation of iron, and corrosion in the raw water distribution system. The AR trial plant is located on the Arrenaes peninsula on Zealand, Denmark. A large-scale production ...


    By IWA Publishing

  • Cooling Tower Blowdown Water

    Comparison of electrolytic oxidation v. ozone as biocide and reducing rate of TDS build-up in Cooling Tower Blow Down Water. Performed by Pureflow PtY Ltd of Singapore at Singapore Polytechnic Institute. Open evaporative cooling systems have been widely used throughout industry to remove heat from process systems and modern buildings for the purpose of air conditioning. As a result, due to this ...


  • Biological Control in Cooling Towers Treated with Pulsed-Power Systems

    Biological control is the foundation of cooling tower water treatment. Biofilm can directly cause corrosion problems (microbial induced corrosion, MIC), pathogen concerns (Legionella), increased pump pressure, heat-transfer problems, dermatological effects, and malodors. With the increasing restrictions being imposed at the federal and state level regarding chemical use in cooling towers (CAA, ...


    By Dolphin WaterCare

  • UV disinfection for enhanced oil recovery and other oilfield applications

    One of the biggest challenges facing oil companies today is how to extract more oil from the discoveries made in the last 40 years. Estimates vary, but approximately 66% of the discovered oil gets left in the ground. The International Energy Agency has estimated that if, in the next 20 years, this figure could be reduced to 50%, then this would increase the world's recoverable oil by 1.2 trillion ...


    By atg UV Technology

  • How Does Lead Get into Drinking Water? How Can Local Municipalities Remove It?

    In light of the Flint water crisis—when, in 2014, Flint officials changed the city’s water source from the Detroit Water and Sewerage Department to the Flint River, leaching unsafe levels of lead into the public water supply due to improper treatment—many people are wondering if the same thing could happen in their own communities and homes. Some folks believe this could be the ...


    By SAMCO Technologies, Inc.

  • Magnetic Fuel Treatment Bottom Line Analysis

    BOTTOM LINE ANALYSIS This cost savings analysis was prepared in cooperation with Master Chief Hill of the US Coast Guard Maintenance & Logistics Command using data from the 82’ Cutter Pt. Chico, and 110’ Cutters Anacapa and Long Island over a period of two years when ALGAE-X® performance was monitored and evaluated. Installation of ALGAE-X® units in Diesel Engine applications results in ...


    By AXI International

  • How Do You Know If You Need a Cooling Tower Water Treatment System for Your Plant?

    In order to keep your production flowing smoothly and avoid costly damage to your cooling tower equipment, the proper treatment of your cooling tower water is essential. If cooling tower water is not properly treated, organic growth, fouling, scaling, and corrosion can reduce plant productivity, cause plant downtime, and require costly equipment replacements down the road. ...


    By SAMCO Technologies, Inc.

  • 10 Questions (And Answers) That May Change the Way You Aerate

    Slot Injector: How does the slot-shaped nozzle of the Slot Injector™ aeration system improve performance? The slot shaped nozzle and mixing chamber provide a larger shear surface for mass transfer than a circular jet of identical area. This unique shape results in a high percentage of gas dissolution and superior oxygen transfer rates with a 10-20% reduction in energy usage ...


    By KLa Systems, Inc.

  • Gas Safety in Confined Spaces

    Introduction An offshore worker ensures a vessel is safe to enter; a plant manager enters a small plant room; a contractor inspects the lining of a sewage pipe.  All these personnel face common dangers, despite working in widely different industries.  Gas-related injury poses a serious threat in any confined space where the free movement of air is limited. A confined space ...

  • Mixed Oxidant Replaces “Cocktail” of Chemicals in Power Plan

    Cooling Tower Water Systes Synopsis In 2010 NIPSCO installed two MIOX RIO Mixed Oxidant Solution (MOS) chlorine generator systems on two of the four cooling towers at R.M. Schahfer Generating Station.  After switching to MIOX for cooling tower water treatment, the two towers experienced minimized algae growth, better biocontrol and lower Legionella counts, ...


    By MIOX Corporation

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

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


    By Dolphin WaterCare

  • 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

  • EPA Considering Rule to Require Reporting Of Chemicals Used in Hydraulic Fracturing

    The Environmental Protection Agency is considering a rulemaking that might require chemical manufacturers and processors, as well as oil and gas exploration companies, to report on chemicals used in hydraulic fracturing. In an advance notice of proposed rulemaking, the EPA said it is seeking information from industries, state agencies and others on the range of data the agency should ...


    By Bloomberg BNA

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