• DETERMINATION OF TOTAL MERCAPTANS IN WATER AND WASTEWATER BY SPECTROPHOTOMETRY

    Author(s):
    Lawrence K Wang (see profile) , Mu-Hao Sung Wang, Betty C Wu
    Editor(s):
    Yuriy I Pankivskyi
    Date:
    2022
    Group(s):
    Science, Technology, Engineering and Mathematics
    Subject(s):
    Analytical chemistry, Thiols, Spectrophotometry, Natural gas, Odors, Odor control, Taste
    Item Type:
    Book chapter
    Tag(s):
    STEM, science, research, Research and Development
    Permanent URL:
    https://doi.org/10.17613/krd0-cs31
    Abstract:
    Wang, MHS, Wang, LK, and Wu, BC (2022). Determination of total mercaptans in water and wastewater by spectrophotometry. In: "Environmental Science, Technology, Engineering, and Mathematics (STEM)", Wang, LK, Wang, MHS, and Pankivskyi, YI (editors). Volume 2022, Number 4C, April 2022; pp.26. Lenox Institute Press, MA, USA. https://doi.org/10.17613/krd0-cs31 . ....ABSTRACT: This publication initially introduces the environmental engineering significance of an odor-causing chemical group, known as mercaptans, and subsequently introduces a spectrophotometric method for determination of total mercaptans in water and wastewater. The mercaptans are very useful additives to colorless natural gases and toxic pesticides giving them warning signals to humans. However, their residuals are the undesirable environmental pollutants causing odor problems in air and taste problem in drinking water. There has been no effective quantitative method for determination of mercaptan concentrations in water and wastewater. The authors introduce this simple spectrophotometric method and invite researchers for further statistical as well as analytical research. It is the authors' hope that one day a Standard Method for the total mercaptans determination can be finalized. Lead mercaptide has been used for preparation of mercaptan standard solution and preparation of calibration curves. After a water sample containing mercaptans reacts with an absorbing solution and a color developing reagent, its filtrate's absorbance is measured in 5 cm cells at 500 nm using a spectrophotometer.
    Notes:
    KEYWORDS: Total Mercaptans, Applications, Natural Gas Additive, Pesticide Additive, Environmental Pollution, Odor Problem, Drinking Water Taste Problem, Analytical Method, Spectrophotometry, Call for Further Research, Memoir.
    Metadata:
    Published as:
    Book chapter    
    Status:
    Published
    Last Updated:
    4 months ago
    License:
    All Rights Reserved
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