industrial water industry Articles

  • New article published about the patented technology for removal and prevention of ammonium chloride salt fouling and corrosion

    Masakazu Koizumi and Keisuke Karaki from Kurita Water Industries Ltd. published a technical article in the magazine Hydrocarbon Engineering about ACF – the patented technology for removal and prevention of ammonium chloride salt fouling and corrosion. Hydrocarbon Engineering is a monthly global magazine for the refinery and petrochemical industry with a net print circulation average of ...


    By Kurita

  • Bacterial community structure in cooling water and biofilm in an industrial recirculating cooling water system

    Microbial fouling is a serious problem in open recirculating cooling water systems. The bacterial communities that cause it have not been fully understood. In this study, we analyzed the community structure of free-living bacteria and particle-attached bacteria in cooling water, and bacteria in biofilm collected from the wall of the water reservoir in an industrial recirculating cooling water ...


    By IWA Publishing

  • Electronic water treatment reduces fouling in heat exchangers

    The deposition of material on heat transfer surfaces is called fouling which significantly impacts on the thermal and mechanical performance of heat exchangers. Fouling increases the overall thermal resistance and lowers the overall heat transfer coefficient of heat exchangers as well as impeding fluid flow, accelerating corrosion and increasing pressure drop across the heat ...

  • ELECTRONIC WATER TREATMENT REDUCES FOULING AND CORROSION IN PIPELINES

    Increasing pressure loss in the pipeline is often caused by scale corrosion or product fouling of the internal surfaces. This condition slows transmission and distribution capacity, and can require more than just routine maintenance if it remains unaddressed. Interior corrosion, fouling and leakage in pipeline systems will adversely impact bottom-line operations. ...

  • Desalination and water recovery: control of membrane fouling

    Ultrafiltration (UF), Nanofiltration (NF) and Reverse Osmosis (RO) technologies are widely used for the production of safe drinking water, and for the recovery of reusable water from various industrial effluent streams. The most commonly encountered phenomenon in these processes, especially in water recovery application, is membrane fouling, and control of membrane fouling is regarded as a ...


    By Inderscience Publishers

  • Biofouling by bryozoans, Cordylophora and sponges in UK water treatment works

    In recent years biofouling from native (bryozoans, sponges) and non-native (Cordylophora) animals has increased in UK water treatment works (WTW). A survey of six UK water companies and eight WTWs revealed that these taxa were more widespread and abundant than previously recognised. Primary problems related to the occlusion of underfloor nozzles and tailpipes in rapid gravity filter beds (RGFs). ...


    By IWA Publishing

  • Control of Brackish Water Fouling Mussel, Mytilopsis leucophaeata (Conrad), with Sodium Hypochlorite

    Though the Conrad’s false mussel, Mytilopsis leucophaeata, is an important fouling animal in industrial cooling water systems, there are no published reports on the tolerance of this species to chlorination. A series of experiments was conducted to determine the effects of mussel size (2–20 mm shell length), season (breeding versus nonbreeding), nutritional status (fed versus starved) and ...


    By Sweco Nederland BV

  • Influence of organic fouling and operating conditions on nanofiltration membranes to reduce phenol concentration in natural waters

    Phenol is a product widely used in manufacturing and as a disinfectant for industrial and medical applications. The treatment of aqueous effluents polluted with phenol and phenolic species has deserved much attention in the last years due to the toxicity and low biodegradability of those organic compounds. Nanofiltration (NF) has a great potential to remove these contaminants. The main objective ...


    By IWA Publishing

  • Evaluation of a bench-scale membrane fouling protocol to determine fouling propensities of membranes during full-scale water reuse applications

    There is increasing interest in recycling wastewater effluents for augmentation of existing water supplies. The treatment of wastewater effluents by an integrated membrane system, such as microfiltration pre-treatment followed by reverse osmosis, is the industry standard for groundwater recharge or reservoir augmentation projects. Membrane fouling, especially effluent organic matter fouling, is a ...


    By IWA Publishing

  • PHE Solving fouling test results - Case Study

    Industry, hotels, commercial buildings even private homes in "Hard" water areas are at a disadvantage due to "Scale" formation on devices, particularly those attached to "Hot" water circuits. A PHE (Plate Heat Exchanger) with a known “Scaling” problem is selected for testing. The attached case study demonstrates how with an “open mind”, even those sceptical of our products ...


    By Phoenix Ring Manufaktur UG

  • Chlorination for Dreissena polymorpha control: old war-horse for the new pest?

    The various chlorination regimes employed in industrial cooling water systems to control Dreissena polymorpha (Pallas) are illustrated. Literature data on lethal and sublethal effects of chlorination on D. polymorpha are presented and gaps in knowledge are identified. The data show that various factors can influence the chlorine tolerance of D. polymorpha, among which mussel species, mussel size, ...


  • Effective Removal of Zebra Mussels with Amiad Screen Technology

    Introduction The zebra mussel, native to the Black and Caspian Seas, has spread in the past few decades to waterways throughout the world mostly via ballast water. Zebra mussels, when non-indigenous to the environment, pose a serious threat to intakes of facilities that rely on fresh and brackish surface water. The mussel colonies obstruct the flow of water through the pipelines eventually ...

  • Membrane fouling

    The Problem: Membrane water treatment is costly and complex due to the systems required to mitigate membrane fouling. Membranes have, therefore, been relegated to high value applications such as desalination and ultra-pure water needs. The systems used to mitigate fouling have a history of underperformance and high cost. EconoPure Solution: EconoPure has ...


    By EconoPure Water Systems, LLC

  • Helping Laurel Asphalt to Fight Foul Odors and Be Good Neighbors

    One of the unavoidable byproducts of the asphalt production process is a mixture of volatile hydrocarbons, mercaptans, hydrogen sulfide, and heat, which may cause a unique mixture of foul odors. When this happens, many asphalt producers have to contend with neighboring residents – often homes and businesses – that bring their odor complaints to both the media and local town-hall ...


    By OMI Industries (OMI)

  • Modeling of the fouling of inside-out hollow fiber UF membranes

    Membrane processes often experience a decline in the permeate flux or an increase in the operating pressure from membrane fouling. A mathematical model that describes the fouling of inside-out hollow fiber ultrafiltration (UF) membranes was derived from hydrodynamic equations coupled with the theory of depth filtration. The correlation predictions obtained in this study are simpler, as the ...


    By IWA Publishing

  • YWP Weinrich perspective on RO membrane biofouling reduction

    Seawater desalination using reverse osmosis is an important part of a community’s water portfolio in coastal areas experiencing water scarcity. However, desalination using RO is expensive in part because of the costly challenges that arise from fouling on the RO membranes. Specifically, biological fouling emerged as the most poorly managed of the different types of fouling. My literature ...


    By IWA Publishing

  • The smart solution to membrane fouling detection, monitoring and management

    Since the advent of membrane technology applications for large-scale commercial seawater desalination in the early Eighties, two critical issues in the application of the technology have emerged and persisted that drastically affected the way plant owners and operators managed these vital water production utilities, and subsequently impacted the total cost of water. The issues are the ...


    By MASAR Technologies, Inc.

  • Global experiences in optimizing biofouling control through Pulse-Chlorination®

    ABSTRACT Cooling water systems provide optimal conditions for settlement and growth of fouling species, e.g. mussels, oysters and barnacles. Excessive biofouling results in major operational upsets and even unplanned shutdowns. Controlling micro- and macrofouling organisms in once-through cooling water systems is key for safe reliable operation. For this, chlorination is globally still ...


    By Sweco Nederland BV

  • 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

  • Real-Time Membrane Fouling Monitoring

    The Port Hueneme Water Agency (PHWA) has been operating a municipal drinking water treatment plant designed to be a Brackish Water Reclamation Demonstration Facility. The facility consists of 3 separate side-by-side full scale systems or trains, each representing a major membrane separation process: nanofiltration (NF), reverse osmosis (RO) and electro dialysis reversal (EDR). Both the NF and RO ...


    By MASAR Technologies, Inc.

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