Drinking Water Application Notes

  1. Secret To Disinfection Monitoring For High Chlorine Residual Wastewater Applications

    Some wastewater applications require chlorine residuals greater than can be effectively monitored using DPD due to the oxidation of the Wurster dye to a colorless Imine. Such applications include industrial wastewater processes that inherently have a high chlorine demand thereby requiring a more robust monitoring method.

  2. New Water Turbidity Measurement Technology — The US Experience

    The amount of insoluble matter present in drinking water is an essential quality indicator. Silt, sand, bacteria, spores, and chemical precipitates all contribute to the cloudiness or turbidity of water. Drinking water (DW) which is highly turbid can be unpalatable and unsafe. Consumption of even low concentrations of certain bacteria and other microorganisms can cause serious health effects. Consequently, an accurate and sensitive measurement of turbidity is vital for ensuring that drinking water is free of these contaminants.

  3. How To Read An Encoder

    The HR-E LCD encoder has a 9-digit Liquid Crystal Display (LCD) to show consumption, flow and alarm information. The display automatically toggles between 9-digit and 6-digit consumption, rate of flow and meter model.

  4. Hydrant Pressure Monitoring Application Note

    The simplicity of the compact, battery-powered Telog HPR-31 enables you to put it to work within minutes of unpacking. Once installed, the Telog HPR-31 measures water pressure at user programmable rates up to four samples per second with its internal pressure transducer. You can determine how often such data is summarized for reporting. The recorder computes any combination of minimum, average and maximum pressure measurement at each interval according to your selection of statistics and recording intervals. Recorded data may be gathered via an RS-232 connector using a handheld device or a laptop.

  5. Application Note: Desalination Plants: YSI Instruments Monitor Flow & Water Quality At Multiple Stages
    Desalination is the process of removing salt from sea water or brackish river or groundwater to make potable water. By YSI
  6. 3M™ Liqui-Cel™ Membrane Contactors Improve Water Quality and EDI Performance

    Electrodeionization (EDI) is a widely used water treatment process. EDI technology is an electrochemical process that uses ion selective membranes and an electrical current to continuously remove ions from water. The process uses ion exchange resin to remove the ions from the feed stream, producing pure water.

  7. Determination Of Pesticide Residues In Tea

    In 2012, Americans consumed well over 79 billion servings of tea, which is just over 3.60 billion gallons.

  8. UV Technology Offers Solution For Emerging Water Crisis

    Many are turning to UV as an effective barrier to enable the reuse of wastewater, for indirect reuse, and aquifer recharge.

  9. Phosphate Corrosion Control In Drinking Water

    Corrosion occurs because metals tend to oxidize when they come in contact with oxygenated water, resulting in the formation of stable metal oxides.

  10. Application Note: Vertical Profiling Safeguards Drinking Water And Sheds Light On Cyanobacteria
    A search for algal toxins in North Carolina reservoirs has evolved into an ongoing early warning system for three important drinking water reservoirs—which serve two large cities—and yielded a greater understanding of the dynamics of blue-green algae, or cyanobacteria, in the state’s reservoir system. By YSI