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DSC ANALYSIS OF NOVEL POLYETHILENE BIOFILM CARRIERS

MBBR (Moving Bed Biofilm Reactor) wastewater treatment technology relies heavily on the type of 
used HDPE (High Density Polyethylene) carriers, that use immobilized biofilm for the removal of organic 
and inorganic substances in the treated wastewater. Present work explored DSC (Differential Scanning 
Calorimetry) analysis on four novel variants of HDPE carriers. DSC is a thermoanalytical technique in 
which the difference in the amount of heat required to increase the temperature of a sample and reference 
is measured as a function of temperature. The four novel carriers were composed of novel recipes of mixes 
of polyethylene with inorganic and organic compounds (patent pending), designed for greater microbial 
biofilm development. DSC analysis. DSC analysis was carried out in order to understand the behavior 
of the developed carriers, in various scenarios. High density polyethylene (HDPE) is a weak, semi- 
crystalline, thermoplastic polymer that is part of the polyolefin class. Analysis revealed that the temperatures 
at which the melting process of crystalline zones in the macromolecular structures occur, gradually decreases 
from the sample with only HDPE in composition to the one with addition of a mix of inorganic and organic 
compounds.