Development of a Novel Mass Spectrometric ... - Jacobs University

Experimental
After that, 20 g of waste were extracted by 20 ml of n-heptane and 40 ml of
acetone inside an automatic soxhlet extractor for 6 hours. The resulting brown
solution then is washed with water (15 ml) to remove the acetone content. The n-
heptane solution is cleaned by a column (d=1cm) using florisil (2g) and sodium
sulfate (2g). The filtrate was dried using rota evaporation. Then 5 ml of n-heptane
was added to the extract. For injection into MS, 1 ml of the prepared heptane
solution is used. Sometimes diluted solutions were prepared before infusion.
Similarly this preparation method was applied to treated waste samples on small
scale reactor in Hochschule Bremerhaven. Our project partners probed aeration
and hydrothermal conditions as seen in Table 2.1 to optimize degradation process.
Table 2.1 Different shredder waste samples treated under different conditions
Sample
Date
Conditions
Temp. Air flow Input water
Operating time
I 1 2010-12-14
1.
R 1.1 2010-12-14 60 °C 1,5 L/h 120 mL/d 22 days
R 2.1 2010-12-14 60 °C 1,5 L/h 120 mL/d 22 days
I 2 2010-12-22
2.
R 1.2 2010-12-22 60 °C 1,5 L/h 120 mL/d 20 days
R 2.2 2010-12-22 60 °C 3,0 L/h 120 mL/d 20 days
R 3.2 2010-12-22 60 °C 3,0 L/h 120 mL/d 20 days
I 3 2011-04-02
3.
R 1.3 2011-03-16 60 °C 3,0 L/h 120 mL/d 31 days
R 2.3 2011-03-16 60 °C 3,0 L/h 120 mL/d 22 days
R 3.3 2011-03-16 60 °C 3,0 L/h 120 mL/d 14 days
I 4 2011-04-14
4.
R 1.4 2011-04-21 60 °C 3,0 L/h 120 mL/d 22 days
R 2.4 2011-04-21 60 °C 3,0L/h 120 mL/d 22 days
R 3.4 2011-04-21 60 °C 3,0 L/h 120 mL/d 22 days
I 3 2011-06-14
5.
R 1.3 2011-07-04 70 °C 3,0 L/h 120 mL/d 22 days
R 2.3 2011-07-04 70 °C 3,0 L/h 120 mL/d 22 days
R 3.3 2011-07-04 70 °C 3,0 L/h 120 mL/d 22 days
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