Analytical Instruments Application Notes

  1. A Comparative Study Of On-Line And Laboratory TOC Analyzers For Analysis Of Municipal Wastewater
    2/7/2014

    This application note presents comparative data obtained on influent and effluent wastewater samples using laboratory and on-line TOC analyzers employing the heated sodium persulfate oxidation technique in USEPA-approved methods 415.3 and SM 5310C.

  2. Dissolved Oxygen Measurement In Wastewater Treatment
    11/11/2013

    A wastewater treatment plant separates solids from the liquid, and consists of two basic stages: primary treatment and secondary treatment.

  3. Dissolved Oxygen Measurement
    11/11/2013

    One of the most important measurements in the determination of the health of a body of water is its dissolved oxygen content. The quantity of dissolved oxygen in water is normally expressed in parts per million (ppm) by weight and is due to the solubility of oxygen from the atmosphere around us.

  4. Primary Wastewater Treatment: Influent Monitoring
    11/10/2013

    The raw sewage entering a wastewater treatment plant comes from a variety of sources. In addition to effluent from domestic users, effluent from industrial users and storm water run off can be present.

  5. Bringing Efficiency And New Confidence To BOD₅ Analysis
    2/4/2013

    Biochemical Oxygen Demand (BOD) analysis is the test everyone loves to hate—and for compelling reasons.

  6. Disinfection By-Products (DBP) Precursor Monitoring
    2/1/2013

    Chlorine has long been used as a primary disinfection method for many water and wastewater treatment applications. However, there is growing concern about the harmful DBP’s produced by the use of chlorine.

  7. Monitoring Aromatic Organics For Optimizing Coagulation
    2/1/2013

    With the increasing awareness about the negative effects of organics within the water and wastewater treatment process along with increasingly strict water quality regulations, the need for more effective organics removal is becoming more important.

  8. Bringing Efficiency And New Confidence To BOD5 Analysis
    1/31/2012
    Biochemical Oxygen Demand (BOD) analysis is the test everyone loves to hate—and for compelling reasons. By Bob Dabkowski, Hach Company
  9. Application Note: Dairy Farms Use YSI Instruments To Map Volume Of Wastewater Lagoons
    8/4/2011
    On July 1, 2010, dairy farm waste management plans are due to the California Regional Water Quality Control Board. By YSI
  10. Application Note: Simultaneous Determination Of Total Bound Nitrogen (TNb) And Total Organic Carbon (TOC) In Aqueous Samples
    5/31/2011
    Total bound nitrogen (TNb) consists of dissolved ammonia, nitrates, nitrites, amines, and other organic nitrogen-containing compounds. TNb measurements represent an alternative to Total Kjeldahl Nitrogen (TKN) analysis for rapid screening of industrial wastewater, drinking water,agricultural run-off, and surface waters. By OI Analytical