TEMPERATURE IMPACT OF NITROGEN TRANSFORMATION IN TECHNOLOGICAL SYSTEM: VERTICAL FLOW CONSTRUCTED WETLAND AND POLISHING POND
Journal Title: Civil and Environmental Engineering Reports - Year 2016, Vol 4, Issue 23
Abstract
The article describes the results of the research, purpose of which was to evaluate influence of the temperature on the effectiveness of nitrification and denitrification in the sewage treatment system consisting of vertical flow constructed wetland and polishing pond. During the analysed period, the efficiency of removing total nitrogen was low and amounted to 12.7%. In the polishing pond in the summer period, content of total nitrogen in treated sewages was further decreased by nearly 50%. In the winter period, the polishing pond fulfilled mainly retention role and thus did not improve effectiveness of the whole system. Temperature coefficients, calculated on the basis of single first-order kinetics, for nitrification process in the filter bed (N-NH4+) and denitrification process inthe polishing pond (N-NO3-) amounted to 1.039 and 1.089, respectively.
Authors and Affiliations
Sylwia MYSZOGRAJ, Franciszek BYDAŁEK
Keywords
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