Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Polyelectrolytes: potential chloroform precursors.

K L Kaiser, J Lawrence

    Science (New York, N.Y.)
    |June 10, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Search for Light Pseudoscalar Bosons, Pair-Produced in Higgs Boson Decays in the Four-Electron Final State in Proton-Proton Collisions at sqrt[s]=13  TeV.

    Physical review letters·2026
    Same author

    First Evidence for Mixing-Induced CP Violation in B_{s}^{0}→J/ψϕ(1020) Decays in pp Collisions at sqrt[s]=13  TeV.

    Physical review letters·2026
    Same author

    Observation of Suppressed Charged-Particle Production in Ultrarelativistic Oxygen-Oxygen Collisions.

    Physical review letters·2026
    Same author

    Measurement of D^{0} Meson Photoproduction in Ultraperipheral Heavy Ion Collisions.

    Physical review letters·2026
    Same author

    Observation of tWZ Production at the CMS Experiment.

    Physical review letters·2026
    Same author

    Black Hole Spectroscopy and Tests of General Relativity with GW250114.

    Physical review letters·2026
    Same journal

    Erratum for the Research Article "Detecting supramolecular organic nanoparticles during heat wave".

    Science (New York, N.Y.)·2026
    Same journal

    Local signals, systemic decline.

    Science (New York, N.Y.)·2026
    Same journal

    The mechanics of liver regeneration.

    Science (New York, N.Y.)·2026
    Same journal

    Computing in a memory with physics.

    Science (New York, N.Y.)·2026
    Same journal

    Retraction.

    Science (New York, N.Y.)·2026
    Same journal

    Making time.

    Science (New York, N.Y.)·2026
    See all related articles

    Widely used polyelectrolyte coagulants can form chloroform, a disinfection byproduct, in drinking water. This reaction is enhanced by heat and UV light, necessitating further research into polyelectrolyte safety.

    Area of Science:

    • Environmental Chemistry
    • Water Treatment
    • Organic Chemistry

    Background:

    • Chloroform in potable water is typically attributed to the chlorination of natural organic matter.
    • Polyelectrolytes are extensively used as coagulants and coagulant aids in water treatment processes.
    • The potential for polyelectrolytes to contribute to disinfection byproduct formation has not been well-established.

    Purpose of the Study:

    • To investigate the formation of chloroform from commercial polyelectrolyte formulations.
    • To determine the influence of thermal conditions and ultraviolet irradiation on this reaction.
    • To assess the implications of polyelectrolyte use on drinking water quality.

    Main Methods:

    • Testing of ten commercial polyelectrolyte formulations.

    Related Experiment Videos

  • Reaction of polyelectrolytes with chlorine under thermal conditions.
  • Evaluation of the effect of ultraviolet irradiation on chloroform formation.

    • Main Results:

    • Chloroform was formed from most tested polyelectrolyte formulations when reacted with chlorine.
    • Concentrations of chloroform reached several micrograms per liter.
    • The reaction was significantly activated by ultraviolet irradiation.

    Conclusions:

    • Polyelectrolyte coagulants and aids can be a source of chloroform in treated water.
    • Further research is needed due to the unknown chemical composition of polyelectrolytes and their impurities.
    • A comprehensive assessment of polyelectrolyte benefits versus potential harm is required.