Indirect Measurement of the Biodegradability by the Utilization of Conductometric Probes and Self Developed Interface

Research Area: Volume 4,Issue 6, Nov. 2015 Year: 2015
Type of Publication: Article Keywords: Biodegradability, Carbon dioxide, Conductivity, Interface
Authors:
  • Kristína Gerulová
  • Tomáš Škulavík
  • Tomáš Štefko
Journal: IJEIR Volume: 4
Number: 6 Pages: 867-871
Month: November
Abstract:
It was constructed self-developed interface allowed continual indirect measurement of evolved carbon dioxide, by the by the utilization of conductivity probes. This continual data record reduced demands on the human operators in the ready biodegradability assessment; while the indirect measurement of produced carbon dioxide was not assessed by the titration but conductivity measurement of absorption solution - barium hydroxide. This measurement was allowed because change in conductivity of barium hydroxide was in the linear correlation to reacted carbon dioxide. For the verification of the interface operation; while the range of the method was simultaneously determined; it was tested different concentrations of standard chemical (glucose), with the different amounts of inoculum to meet the condition of typical standardized test for both the ready and inherent biodegradability (OECD 301 B and OECD 302 B).

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