biocide chemicals Articles

  • Preservation of reverse osmosis membranes with non oxidizing biocides – comparison with SMBS

    Sodium metabisulphite (SMBS) is the current standard preservation chemical used in RO plants during shut down. It is a cheap and efficient preservative, but its tendency to oxidize easily has several drawbacks. The use of a non-oxidizing biocide instead could solve some of the issues currently seen with the SMBS, but little has been reported about membrane compatibility and preservation ...


    By IWA Publishing

  • Algae control in cooling towers - Case Study

    Company: Dubai festival city Description: LG Sonic industrial units for district cooling facility in Dubai Project objective: Reduce chemical dosage for water treatment and, at the same time, control factors that may cause problems, such as corrosion, scaling, and microbial activity Before treatment Scaling, ...


    By LG Sonic

  • Biofouling in cooling basin - Case Study

    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

  • Reverse Osmosis Chemicals

    Reverse osmosis is an efficient way of purifying water but operational efficiency can only be obtained if the plant and in particular the membranes are not kept clean.  If this is not the case, membranes quickly become fouled result in lower output and ultimately resulting in the costly necessity of having to replace them.  Various products are available which have been developed to ...


    By B & V Chemicals

  • How does the EU directive on biocides work?

    Question: How does the EU directive on biocides work? The EU Biocide Products Directive 98/8/EC (known as the BPD) was issued in February 1998 and was to be implemented in all member states by 13 May 2000. In many ways, the BPD is a precursor to the proposed REACh regulation, which will require the registration of all existing chemical substances in the EU. Similarly to the REACh, the purpose ...


    By Verisk 3E

  • An alternative cooling tower disinfectant: On-site generated mixed oxidants

    Favorable temperatures (80-110°F) and availability of nutrients make cooling tower systems ideal places for microbial growth. Accumulation of biofilm impedes proper heat transfer and secretes metabolic products that contribute to microbiologically influenced corrosion (MIC). The films also may propagate and release disease-causing bacteria. Control of microbial growth is traditionally ...

  • Closed circuit Water Treatment Chemicals

    The problems encountered in closed circuit systems are like those in open systems – corrosion, suspended solids, scale, and microbiological contamination.  However, there are differences between the systems which require us to treat them in different ways. The fixed volume, low make-up of a closed system allows us to dose water treatment products at much higher levels than is possible ...


    By B & V Chemicals

  • EC Issues Final Report on the Sustainable Use of Biocides

    On March 16, 2016, the European Commission (EC) issued its final report on the sustainable use of biocides. Article 18 of the European Union’s (EU) biocidal products regulation (BPR) directs the EC to issue a report on how the BPR ...


    By Bergeson & Campbell, P.C.

  • Alternative Disinfection Technology Demonstrates Advantages for Wet Weather Applications – A Pilot Study of Powdered Bromine Technology

    A bromine disinfection technology currently utilized in Japan for Combined Sewer Overflow (CSO) disinfection was piloted by the City of Akron, Ohio. Bromochlorodimethylhydantoin (BCDMH) is a biocide in powdered form that, when dissolved in water, hydrolyzes to hypobromous acid, hypochlorous acid (the active biocides) and Dimethylhydantoin. This unique combination in active biocides can yield ...

  • ECHA Issues Article 95 Biocide Suppliers List

    On September 2, 2015, the European Chemicals Agency (ECHA) issued an updated list of biocide suppliers as required under Article 95 of the Biocidal Product Regulation (BPR). Although prior versions of the list were released previously, this list has current legal effect since Article 95 ...


    By Bergeson & Campbell, P.C.

  • European Union Biocidal Products Regulation and Its Impact on Industry: A Practical Briefing

    The European Union (EU) Biocidal Products Regulation (BPR) has entered into EU law. This legislation changes the way in which biocidal active substances and biocidal products are regulated in the EU. The new EU regulatory system differs from other global regulatory systems for biocidal substances and redefines what are considered biocidal products and treated articles. Companies competing in this ...


    By Bergeson & Campbell, P.C.

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

    A correctly sized atg UV system such as the featured atg UV disinfection package dramatically reduces the amount and frequency of chemical dosing and vastly reduces the associated handling / transportation costs. 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) ...


    By atg UV Technology

  • Cooling Water System at Major Canned Food Producer in the United States

    Cooling operation for canning line replaces stabilized bromine and achieves greater biological control. LOCATION Tomato Canning Plant in California, USA EQUIPMENT & CHEMISTRY Vault M15 MIOX’s Mixed Oxidant Solution (MOS) PREVIOUS DISINFECTION Bromax 7.1 (Stabilized Bromine) ...

  • Manufacturer of Water Treatment Chemicals and Water Additives

    Water treatment is a process for treating sewage or modern wastewater and converting it into more acceptable form for a specific end-use. The end utilization of this treated water might be drinking, mechanical water supply, water system, waterway stream support, water diversion or numerous different uses, including being securely returned to nature. Water treatment expels ...


    By Water Chemicals

  • Halliburton hunts new bacteria killer to protect Shale-gas boom

    Halliburton Co. and Schlumberger Ltd., trying to forestall a regulatory crackdown that would cut natural-gas drilling, are developing ways to eliminate the need for chemicals that may taint water supplies near wells. At risk is hydraulic fracturing, or fracking, a process that unlocked gas deposits in shale formations and drove gains in U.S. production of the fuel. Proposed regulations might slow ...


    By Biolargo, Inc.

  • Rapid inactivation of Salmonella by a quaternized biopolymeric flocculant

    We report the characteristics and biocidal properties of a biopolymeric flocculant produced by Klebsiella terrigena capable of flocculating Salmonella efficiently from water. In order to impart an antimicrobial function, the native biopolymer was quaternized and the trimethyl biopolymeric derivative (TMB) was analysed physically, chemically and for flocculating properties. ...


    By IWA Publishing

  • Improved Control for your Cooling Tower and Boiler

    The power of microprocessor based programming along with the ease of interfacing with standard Internet based controllers has enabled improved cooling tower and boiler control with just the click of a mouse. Many of these improvements can significantly enhance your chemical treatment program, and provide greater flexibility in your chemical treatment program. These new algorithms offer ...


    By Walchem, Iwaki America Inc.

  • 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

  • Removing biofilm from membranes – a practical approach

    Abstract Within the lifetime of most reverse osmosis (RO) systems some fouling will adversely affect membrane performance.One of the major foulants identified on lead membranes during a decade of membrane autopsy at the Genesys Membrane laboratory is biological fouling (biofouling). All raw water sources contain microorganisms such as algae, bacteria and fungi. They also contain ...

  • New approaches for monitoring the marine environment: the case of antifouling paints

    Protection of ships hulls against biofouling has been a problem since man began sailing the seas. The most common protections are specially produced antifouling paints. These paints could be broadly classified in three main groups, or generations, depending on the technology applied: first generation copper-based, second generation organotin-based, and the new, third generation, organotin-free ...


    By Inderscience Publishers

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you