- W. Hendriks (1)
- T. Pancras(older publications) (3)
- S.A.M. Pancras (1)
- T. Pancras (1)
- W.H. Rulkens (1)
- Jinlan Xu (1)
Chemical oxidation of cable insulating oil contaminated soil
Jinlan Xu, ; Pancras, T. ; Grotenhuis, J.T.C. - \ 2011
Chemosphere 84 (2011)2. - ISSN 0045-6535 - p. 272 - 277.
catalyzed hydrogen-peroxide - modified fentons reactions - remediation - reagent - bioremediation - hydrocarbons - degradation - systems
Leaking cable insulating oil is a common source of soil contamination of high-voltage underground electricity cables in many European countries. In situ remediation of these contaminations is very difficult, due to the nature of the contamination and the high concentrations present. Chemical oxidation leads to partial removal of highly contaminated soil, therefore chemical oxidation was investigated and optimized aiming at a subsequent bioremediation treatment. Chemical oxidation of cable oil was studied with liquid H2O2 and solid CaO2 as well as permanganate at pH 1.8, 3.0 and 7.5. Liquid H2O2 most effectively removed cable oil at pH 7.5 (24%). At pH 7.5 poor oil removal of below 5% was observed with solid CaO2 and permanganate within 2 d contact time, whereas 18% and 29% was removed at pH 1.8, respectively. A prolonged contact time of 7 d showed an increased oil removal for permanganate to 19%, such improvement was not observed for CaO2. Liquid H2O2 treatment at pH 7.5 was most effective with a low acid use and was best fit to a subsequent bioremediation treatment. To further optimize in situ chemical oxidation with subsequent bioremediation the effect of the addition of the iron catalyst and a stepwise liquid H2O2 addition was performed. Optimization led to a maximum of 46% cable oil removal with 1469 mM of H2O2, and 6.98 mM Fe(II) chelated with citric acid (H2O2:FeSO4 = 210:1 (mol mol-1). The optimum delivery method was a one step addition of the iron catalyst followed by step wise addition of H2O2
|Application of the PAH availability by rapid persulphate oxidation
Grotenhuis, J.T.C. ; Cuypers, M.P. ; Pancras, T. - \ 2002
In: Workshop 'Bioavailability of soil contaminants: problems and perspectives', Bremen, Germany, 2002 - p. 1 - 1.
The estimation of PAH bioavailability in contaminated sediments using hydroxypropyl-ß-cyclodextrin and Trition X-100 extraction techniques
Cuypers, M.P. ; Pancras, T. ; Grotenhuis, J.T.C. ; Rulkens, W.H. - \ 2002
Chemosphere 46 (2002). - ISSN 0045-6535 - p. 1235 - 1245.
|Determining processes related to in-situ remediation of contaminated sediment
Grotenhuis, J.T.C. ; Hendriks, W. ; Dijkhuis, E. ; Gun, J. van der; Doze, J. ; Pancras, T. - \ 2001
In: Phytoremediation, wetlands, and sediments San Diego : - p. 289 - 296.
Vervanging van meerjarige gewassen [en] plantopstanden
Pancras, S.A.M. - \ 1988
Aalsmeer : Proefstation voor de Bloemisterij in Nederland (Rapport / Proefstation voor de Bloemisterij in Nederland no. 63) - 27
boekhouding van landbouwbedrijf - rekeningen van landbouwbedrijf - agrarische bedrijfsvoering - nederland - sierplanten - vervanging - arbeidsleven - farm accounting - farm accounts - farm management - netherlands - ornamental plants - replacement - working life