• COMBINED PHYSICAL-CHEMICAL AND BIOLOGICAL TREATMENT OF MUNICIPAL WASTEWATER UNDER COLD WEATHER CONDITIONS

    Author(s):
    Yuriy I. Pankivskyi
    Editor(s):
    Nazih K Shammas, Lawrence K Wang (see profile) , Mu-Hao Sung Wang
    Date:
    2000
    Group(s):
    Environmental Humanities, Sustainability, World-Ecology Research Network
    Subject(s):
    Science and technology studies (STS), Science education
    Item Type:
    Book
    Tag(s):
    STEM
    Permanent URL:
    http://dx.doi.org/10.17613/k22f-bz03
    Abstract:
    Yuriy I. Pankivskyi (2000). COMBINED PHYSICAL-CHEMICAL AND BIOLOGICAL TREATMENT OF MUNICIPAL WASTEWATER UNDER COLD WEATHER CONDITIONS, ME Thesis, Lenox Institute of Water Technology, USA; May 2000, 67 p. In: “Environmental Science, Technology, Engineering, and Mathematics (STEM)” , Lawrence K Wang., Mu-Hao Sung Wang, and Nazih K. Shammas (editors). Volume 2000, Number 5, May 2000; 67 p. Lenox Institute Press, Newtonville, NY, USA. .....ABSTRACT: Innovative Combined Physical-Chemical and Biological process system has been elaborated and proposed as an alternative technology for municipal wastewater treatment plants operation. In the series of laboratory bench-scale experiments typical raw municipal wastewater from the Town of Lee, Massachusetts, USA, was treated directly, or elevated to design concentrations ( BOD5 / TSS / NH3-N = 250 mg/L / 250 mg/L / 25 mg/L) before treatment. The current and future National Pollutant Discharge Elimination System (NPDES) effluent limitations were the goals for wastewater treatment in this research. Innovative Dissolved Air Flotation (DAF) Technology was applied for primary and secondary clarification. Improved activated sludge single-sludge process was applied for biological treatment (carbonaceous oxidation, nitrification and denitrification) under simulated cold weather conditions. Three complex experiments were performed to prove the system efficiency. It is concluded that the combination of primary DAF, aerobic carbonaceous oxidation, aerobic nitrification, anoxic denitrification, secondary DAF-Filtration and chlorination is an effective innovative system for municipal wastewater treatment. The future NPDES effluent standards can be met. Addition of RAS from a stabilization tank will increase the efficiency of biological treatment.
    Notes:
    KEYWORDS: Dissolved air flotation, DAF, Wastewater treatment. Lee, Massachusetts, USA, Primary flotation, Secondary flotation, Physical-chemical treatment. Biological treatment. BOD removal, Nitrogen removal. Phosphorus removal, Cold weather wastewater treatment. Municipal wastewater treatment. Combined physicochemical and biological treatment. Activated sludge.
    Metadata:
    Published as:
    Book    
    Status:
    Published
    Last Updated:
    9 months ago
    License:
    All Rights Reserved
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