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wastewater treatment microorganism Applications

  • Wastewater treatment solutions for controlling filamentous microorganisms

    Wastewater treatment plants can on occasion experience problems with settling of the biological sludge in the secondary clarifier. Often this problem is caused by the abundant presence of filamentous microorganisms.

    By QM Environmental Services Ltd. based in The Hague, NETHERLANDS.

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    Drinking water treatment

    Drinking water can be produced from any natural sources like groundwater, lakes and rivers (surface waters) or seawater. Drinking water standards are set by the World Health organisation or by the European Union. Drinking water must be free of suspended solids, microorganisms and toxic chemicals. Mineral concentration recommendation vary from country to country but most of the minerals have a maximum concentration recommended to ensure safe, equilibrated and pleasant water to drink.

    By Lenntech Water Treatment based in Delft, NETHERLANDS.

  • Drinking Water Treatment

    The AnoxKaldnes™ MBBR technology is an ideal solution for treatment of potable water whenever there is a need for removal of biologically transformable pollutants, such as NH4+, NO3- or organic compounds. In most cases, pollution levels in drinking water are relatively low, putting demands on a biological process to be able to maintain a high concentration of active microorganisms despite low incoming substrate concentrations. The fixed-film of AnoxKaldnes™ MBBR fulfills this very well and is successfully applied for removal of pollutants in concentrations of a few mg/L.

    By AnoxKaldnes AB - a Veolia Water Company based in Lund, SWEDEN.

  • Air control for wastewater treatment aeration

    Aeration Process Introduction: Waste Water Treatment removes impurities and contaminants from a com¬munity`s sewage utilizing a number of different processes and a variety of equipment. One of the processes is the use of surface aerated basins that use aerobic micro-organisms to remove 80 to 90% of organic matter in waste water. Oxygen concentration in the water basins is a critical factor to promote the optimum micro-organism growth rate needed to treat the water in the shortest amount of time. As a result, large compressors are used to force air through hundreds of air diffusion filters at the bottom of the aeration basins, providing a constant 24/7 supply of oxygen to the micro-organisms in the water.

    By Kurz Instruments, Inc. based in Monterey, CALIFORNIA (USA).

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    Ultraviolet disinfection systems for the produced water treatment

    With environmental regulations becoming more stringent, and the link between re-injected water quality and operational costs becoming clear to operators, investing early in advanced water treatment solutions for produced water for both reinjection applications and environmental discharges is now a top priority for operators worldwide.  atg UV Technology have provided a number of specialist UV packages for the disinfection of Produced Water in order to reduce microorganisms such as SRB’s (Sulphate Reducing Bacteria), Acid Producing Bacteria and Slime Forming Bacteria, that if left untreated, pose a range of negative consequences including: - Souring the well with hydrogen sulphide gas H2S, Microbiological induced corrosion, Loss of fluid stability during injection, Plugging of the well, Damage of equipment and components (e.g. RO membranes, filters).

    By atg UV Technology based in Wigan, UNITED KINGDOM.

  • Advanced Ultrafiltration Modules

    The Q-SEP Ultrafiltration membranes incorporate high-strength, hollow fibers that deliver superior performance without the risk of fiber breaks. They are made from a hydrophilic polyether sulfone material with excellent low fouling characteristics. These hollow fiber membranes operate under a pressurized inside-out flow configuration for superior performance. These hollow fiber UF membranes offer reliable removal of turbidity, microorganisms & viruses. Turbidity can be reduced to less than 0.05 NTU. Typically, a 6-log removal for bacteria, giardia & cryptosporidium, while a 4-log removal for viruses, can be achieved. The Q-SEP modules contain an advanced UF fiber, prepared by an innovative patented cloud point precipitation method. This method ensures a very uniform pore size distribution and high pore density in the membrane. As a result, the product water quality from the modules is significantly better than the quality from conventional UF modules at a very operating pres

    By QUA Group LLC based in Canonsburg, PENNSYLVANIA (USA).

  • Fat, Oil and Grease treatment

    Industrial and municipal waste contaminated with fat – a frequent problem for companies maintaining wastewater network infrastructure and municipal wastewater treatment facilities. We recommend the use of GREASOLUX fat dissolvent cartridges to avoid the problems of pipeline chocking, equipment damage, offensive odors, formation of filamentous bacteria, poor wastewater treatment results, poor sedimental properties of activated sludge. GREASOLUX – is a cartridge that slowly dissolves in water, enriched with special fat dissolvent microorganisms and enzymes. GREASOLUX – is an especially efficient product for low cost solutions to problems caused by fat: only few strategically placed cartridges will remove or minimize the problems caused by fat.

    By Ecochemicals UAB based in Kaunas, LITHUANIA.

  • Water treatment solutions for the ultraviolet disinfection

    The process to reduce the amount of microorganisms in water, by means of ultraviolet light is called “ultraviolet disinfection”. It is used in all kinds of water to reduce the amount of microorganisms such as bacteria, protozoa, viruses, fungi, algae. Ultraviolet (UV) light is a natural part of sunlight, whereas the short wavelengths are absorbed by the protecting ozone layer. UV lamps designed for water disinfection use a gas mixture containing the element mercury (Hg). The Mercury vapour is an advantageous gas for UV disinfection applications because it emits light in the germicidal (‘germs killing’) wavelength range (UVC and UVB).

    By bestUV BV based in Best, NETHERLANDS.

  • Wastewater treatment solutions for anaerobic sludge digestion sector

    Anaerobic digestion is a series of processes in which microorganisms break down biodegradable material in the absence of oxygen, used for industrial or domestic purposes to manage waste and/or to release energy. It is widely used as part of the process to treat wastewater, like Upflow Anaerobic Sludge Blanket (UASB) reactors. As part of an integrated waste management system, anaerobic digestion reduces the emission of landfill gas into the atmosphere. Anaerobic digestion is widely used as a renewable energy source because the process produces a methane and carbon dioxide rich biogas suitable for energy production, helping to replace fossil fuels. The nutrient-rich digestate which is also produced can be used as fertilizer. The digestion process begins with bacterial hydrolysis of the input materials in order to break down insoluble organic polymers such as carbohydrates and make them available for other bacteria. Acidogenic bacteria then convert the sugars and amino acids into carbon dioxide, hydrogen, ammonia, and organic acids. Acetogenic bacteria then convert these resulting organic acids into acetic acid, along with additional ammonia, hydrogen, and carbon dioxide. Finally, methanogens convert these products to methane and carbon dioxide.

    By QM Environmental Services Ltd. based in The Hague, NETHERLANDS.

  • Cooling systems for filtration

    The installation of AZUD filtration equipments allows the reduction of the total solids in suspension in the water, and:

    • Helps to maintain an optimal efficiency of energy in the heat interchange process.
    • Reduce the accumulation of particles in the components of the cooling systems.
    • Reduce the growing of microorganisms. The higher or lower proliferation of these microorganisms is directly linked to the
    • higher or lower availability of organic nutrients which favour the development of the same.
    • When reducing the total quantity of suspended solids it is improved the efficiency in the application of chemical products to the treatment of water.
    • Decrease the frequency of maintenance labours.

    By Sistema Azud, S.A. based in Alcantarilla, SPAIN.

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    Ultraviolet disinfection systems for the swimming pools industry

    Ultraviolet disinfection is now an established method of water treatment for Swimming Pools, Spas, Hydro Pools, Splash Pads and Water Features, and has become the preferred treatment choice for a number of leading international leisure brands. atg UV`s range of treatment systems are proven to improve the swimming pool environment by improving water quality, air quality and safety, leading to increased customer satisfaction. UV systems not only provide disinfection against the 17 known chlorine resistant micro-organisms, such as Cryptosporidium and Giardia, which have a thick outer membrane making them highly resistant to traditional Chlorine disinfection, UV also destroys chloramines. Chloramines are formed when free chlorine reacts with organics, such as sweat, body fats and urine, brought into the pool environment by bathers.

    By atg UV Technology based in Wigan, UNITED KINGDOM.

  • Microbial testing in cooling water system industry

    Superior reliability for superior control! Biocide treatments are essential to control microbiological growth in cooling systems. If not properly managed, the warm environments of cooling systems are ideal for the growth of microorganisms. As microorganism communities grow in cooling systems, they can attach to pipe walls and form biofilms. These biofilms pose serious risks, from human health risks like Legionnaire`s disease to reduced operating efficiency and eventually to equipment failure via microbiologically influenced corrosion (MIC).

    By LuminUltra Technologies Ltd. based in Fredericton, NEW BRUNSWICK (CANADA).

  • Cooling & Drinkingwater: ATP monitoring of biomass growth in waters

    Monitoring Biomass in (Cooling Tower) Waters through ATP monitoring

    The TOXcontrol can be used for ATP monitoring. Currently our company is doing research for further developments for this application on the TOXcontrol.

    Monitoring the microbial population of cooling towers is necessary in order to maintain the proper operation of the system. Conventional methods for monitoring microbial populations work by culturing microorganisms, a time-consuming procedure that requires days or even weeks of incubation before the results are known. Biofouling can be well-advanced before treatment begins. In addition, it is believed that this technique does not detect the full range of microbial life present in cooling systems.

    By microLAN B.V. based in Waalwijk, NETHERLANDS.

  • Automated solutions for the aeration lagoon / pond dredging

    LWT`s dredging systems are used for aeration lagoon / pond dredging applications. A dredging system for removal and disposal of raw sewage solids, decayed algae and microorganisms, and algae-laden sludge results in a long term solution for treatment plants. Aeration lagoon / pond dredging increases lagoon storage volume, provides improved detention time, and accommodates increased plant flow.

    By Liquid Waste Technology LLC (LWT LLC) based in New Richmond, WISCONSIN (USA).

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