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water treatment chemical dosing Applications

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    Water Treatment Chemical Dosing

    By Albin Pump SAS based in Goteborg, SWEDEN.

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    Coagulant Dosing

    By Albin Pump SAS based in Goteborg, SWEDEN.

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    Floculant Dosing

    By Albin Pump SAS based in Goteborg, SWEDEN.

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    Ferrous Chloride Dosing

    By Albin Pump SAS based in Goteborg, SWEDEN.

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    Dosing pumps for water and wastewater treatment industry

    Peristaltic pumps are proven performers in water and waste treatment solving problems including: Dosing and metering treatment chemicals and reagents including ferric chloride (“Ferric”), sodium hypochlorite (“Hypo”), chlorine water, lime (Kalic or Kalkmilch), caustic soda, powder activated carbon and polymers, sludge transfer, filter press feeds.

    By Verderflex Peristaltic Pumps - part of the Verder Group based in Castleford, UNITED KINGDOM.

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    Chemical Water Treatment for equipment & engineering

    Equipment and Engineering offers the right solution for your application of Kurita Products. Starting from simple dosing pumps up to specific dosing systems for special applications Kurita provides you the right solution for your application. Moreover Kurita offers also monitoring and control equipment to analyze that the right concentration of your Kurita products is being used in your system. Further Kurita provides specific equipment to follow the KPIs of your system, so you can be sure that the expected treatment effect is achieved.

    By Kurita based in Ludwigshafen, GERMANY.

  • Water treatment

    As a selective oxidizing agent, chlorine dioxide possesses several chemical advantages when compared to the traditional use of chlorine in wastewater treatment. Chlorine dioxide does not hydrolyze in water, and thus it retains its biocidal activity over a broader range of pH. It is also non reactive with ammonia and most nitrogen-containing compounds, and thus effective at lower dose levels than chlorine. It also eliminates phenols, simple cyanides and sulfides by oxidation. Likewise it is effective at odor control and will oxidize sulfides. Chlorine dioxide is also effective at oxidizing iron and manganese compounds.

    By Applied Oxidation LLC based in Chattanooga, TENNESSEE (USA).

  • US Peroxide Rapid Response

    US Peroxide (USP) is uniquely positioned to rapidly respond to your environmental treatment challenges. USP combines experienced applications and equipment field support with a large inventory of storage systems and pumping modules to respond quickly to time sensitive water and wastewater treatment situations. Advantages With considerable inventory of tank and pump systems as well as our partnerships with leading chemical suppliers, USP can mobilize chemicals and equipment quickly to respond to your rapid response needs, often within 24 hours. We offer dosing options are designed to meet all safety requirements and sized to meet your specific process and dosage rates requirements. Our Applications Engineers and Equipment and Engineering Services teams will provide timely and thorough applications assistance and technical support during the entire project. Download the Rapid Response Solutions Brochure (PDF) Sample Applications Examples of where our Rapid Response Program has successfully addressed treatment challenges include the following: Temporary application of hydrogen peroxide as a source of supplemental dissolved oxygen in biological treatment systems during periods of excessive BOD loading Hydrogen peroxide pretreatment of high strength wastewater to reduce toxicity or BOD/COD prior to biological treatment Emergency hydrogen peroxide treatment of lagoons or ponds to control hydrogen sulfide and other odors Shock cleaning of cooling water systems for biofouling and slime control

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

  • Odor Scrubbers Applications with Hydrogen Peroxide

    Hydrogen Peroxide as a Replacement for Sodium Hypochlorite Hydrogen peroxide may be used in both mist scrubbers and packed tower scrubbers as a replacement for sodium hypochlorite (bleach). Like bleach, the process involves two concurrent mechanisms: 1) absorption of the odors (H2S) into the alkaline scrubbing solution; and 2) oxidation of the absorbed sulfide in solution. Step 1: H2S + NaOH → NaSH + H2O Step 2: 4H2O2 + H2S → H2SO4 + 4H2O Typical dose ratios are 5 parts H2O2 per part H2S or, when used in place of bleach, one gallon 50% H2O2 for every 10 gallons of 15% sodium hypochlorite (NaOCl). This generally translates into a break-even cost scenario. Sufficient caustic soda (NaOH) is added to maintain a pH of 10.0 - 10.5 in the scrubbing solution. There is also in practice a process which uses H2O2 in series with bleach to scrub composting odors. This process relies on a series of three packed tower scrubbers: the first is a pH neutral water wash (to remove ammonia and amine odors); the second uses a conventional caustic/bleach solution in which the bleach is purposely overdosed (to oxidize the complex organic sulfur odors); and the third uses a caustic/H2O2 solution (to remove the unreacted chlorine vapors carried over from the second stage). H2O2 + HOCl → HCl + H2O + O2 Typical dose ratios are 0.5 parts H2O2 per part hypochlorite (OCl-), with sufficient caustic soda (NaOH) added to maintain a pH of 8.5 in the scrubbing solution.

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

  • Filamentous Bulking Control with Hydrogen Peroxide

    Basis of Control with Hydrogen Peroxide Hydrogen peroxide may be used to correct a serious filamentous bulking situation or, preferably, to prevent one from occurring until adjustments can be made to remove the cause. When applied to the return activated sludge, hydrogen peroxide supplies dissolved oxygen which helps restore the microbial activity necessary for effective operation, while selectively oxidizing the filaments which retard settling. The effective dose of hydrogen peroxide is a function of time and concentration, and varies from plant to plant. To correct a serious bulking problem, immediate results may be obtained by adding 100 - 200 mg/L H2O2 to the biosolids recycle line. Once control of bulking is obtained, the dose may be reduced to 25 - 50 mg/L H2O2 to prevent re-occurrence. Practical Considerations Filamentous bulking of municipal activated sludge is not a normal occurrence, and suggests more fundamental problems may be at work (e.g., low dissolved oxygen, high sulfide input, heavy organic loading, nutrient imbalance, improper sludge age, or rapid changes in influent characteristics). Consequently, the use of chemicals such as hydrogen peroxide to control bulking should be pursued in concurrently with more fundamental corrective measures.

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

  • Liquid Rock - Prevening Scale Formation from Ground Water Hardness

    Groundwater is in contact with soil and rock minerals. Significant amounts of the minerals are dissolved in the groundwater. Elevated water hardness is the result of the water interaction and partial dissolution of carbonate minerals. Scale formation is a crystallisation process. Crystals are a highly organised arrangement of molecules. The determining circumstances for a successful crystallisation event include concentration, temperature, pressure and chemical environment. Suitable conditions for the formation of a crystal require numerous factors to coincide. CALSTAT RO-30 provides crystallisation interference at a molecular level :  Excellent results are achieved at low trace quantities of product. Calstat RO-30 dosed at trace levels of 4-10 kg per million litres  Corrosion on steel surfaces is reduced or eliminated  For drinking water production with RO (reverse osmosis) systems, membrane fouling is reduced. The water additive

    By WAT Australia Pty.Ltd. based in West Australia, AUSTRALIA.

  • Potable water treatment

    As a selective oxidizing agent, chlorine dioxide possesses several chemical advantages when compared to the traditional use of chlorine in wastewater treatment. Chlorine dioxide does not hydrolyze in water, and thus it retains its biocidal activity over a broader range of pH. It is also non reactive with ammonia and most nitrogen-containing compounds, and thus effective at lower dose levels than chlorine. It also eliminates phenols, simple cyanides and sulfides by oxidation. Likewise it is effective at odor control and will oxidize sulfides. Chlorine dioxide is also effective at oxidizing iron and manganese compounds.

    By Applied Oxidation LLC based in Chattanooga, TENNESSEE (USA).

  • Water treatment for water distribution systems

    As a selective oxidizing agent, chlorine dioxide possesses several chemical advantages when compared to the traditional use of chlorine in wastewater treatment. Chlorine dioxide does not hydrolyze in water, and thus it retains its biocidal activity over a broader range of pH. It is also non reactive with ammonia and most nitrogen-containing compounds, and thus effective at lower dose levels than chlorine. It also eliminates phenols, simple cyanides and sulfides by oxidation. Likewise it is effective at odor control and will oxidize sulfides. Chlorine dioxide is also effective at oxidizing iron and manganese compounds.

    By Applied Oxidation LLC based in Chattanooga, TENNESSEE (USA).

  • Headworks Odor and Corrosion Control Using Hydrogen Peroxide

    Hydrogen Peroxide typically controls odors and corrosion at treatment plant headworks by direct oxidation of hydrogen sulfide (H2S) within the wastewater. In the direct oxidation mode, H2O2 is applied to the wastewater 5-30 minutes prior to the point where the odors are being released, generally as the wastewater line enters the plant boundary. The efficiency of hydrogen peroxide treatment depends upon the available reaction time, the level of iron in the wastewater (reaction catalyst), wastewater pH and temperature, and the initial and target levels of H2S odor. Under optimal conditions, effective dose ratios are 1.2 - 1.5 parts H2O2 per part dissolved sulfide, and can be reliably estimated through beaker tests. H2O2 + H2S → S0 + 2H2O Frequently, control of odors through the primary clarifiers is wanted. In such case, the mechanism of control is both direct oxidation of H2S (as it rises from the solids blanket), and prevention of odor generation (by supplying dissolved oxygen). Control is typically achieved with a booster dose of 1-2 mg/L H2O2 added to the clarifier influent. Higher doses or alternate modes of addition may be required in cases where: 1) hydraulic retention times are > 2-3 hours; 2) solids blanket depths are > 1-2 feet; 3) soluble BOD levels are > 200-300 mg/L; or 4) waste activated sludge is co-settled with the primary solids. 2H2O2 → O2 + 2H2O

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

  • Gravity Main Sulfide Odor Control with Hydrogen Peroxide

    Gravity main sewer systems include major trunk lines and the tributaries that feed them. Hydrogen sulfide (H2S) odor builds up in the collections system as the flows collect from upstream reaches and become larger, deeper and more septic (oxygen depleted) in the downstream reaches more near to the wastewater treatment plant. In general, most of the more significant hydrogen sulfide odor and corrosion control problems occur in the major trunk systems segments conveying flow to the plant. Therefore, selection of sulfide treatment for gravity systems has several options depending mainly on: Duration of control required Degree of septicity (oxygen depletion) Location of target control points or "hot spots" Location of available dosing points upstream of "hot spots" Availability of civil infrastructure and utilities Sensitivity to hazardous chemicals

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

  • TOC Correlation to BOD or COD

    Challenge: Biochemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) are traditional parameters analyzed in the laboratory to determine organic matter in water and wastewater. Wastewater facility operators need to have constant data to monitor their discharges and optimize treatment processes (biological treatment, chemical dosing, etc). The requirements of BOD and COD analysis prevent them from being implemented as control parameters, however. The BOD five-day analysis time requirement does not allow an operator to use the data for process optimization and. although COD requires less time than the BOD, its analysis includes the use of hazardous chemicals and has no constant analysis capability.

    By GE Analytical Instruments based in Boulder, COLORADO (USA).

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