Why wastewater sludge stimulates and accelerates removal of PAHs in polluted soils?

Fernández-Luqueño, F.; López-Valdez, Fernando; Dendooven, Luc; Luna-Suárez, Silvia; Ceballos-Ramírez, J.M.

doi:10.1016/j.apsoil.2016.01.013

Cited by 16 publications

(18 citation statements)

References 13 publications

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“…This was confirmed in this experiment as approximately 55% of the Phen and Anthra was removed from soil after 56 days. Both the physico-chemical characteristics of contaminants as well as the physical, chemical, and biological properties of soils affect the degradation of PAHs [4]. However, some of the results indicated that the removal of the PAHs in this experiment was low.…”

Section: Discussionmentioning

confidence: 44%

“…2a). After 14 days, concentrations of NH 4 + were < 7 mg N kg -1 and not significantly different among the treatments. Concentrations of NO 2 -were < 2 mg N kg -1 and not significantly different among the treatments (Fig.…”

Section: Resultsmentioning

confidence: 98%

“…Decreases in concentrations of NH 4 + might be due to nitrification, microbial immobilization, NH 4 + fixation, or NH 3 volatilization. Nitrification did not contribute to the decrease in NH 4 + as concentrations of NO 3 -did not increase in the wastewater sludge-amended soil (Fig. 2).…”

Section: Resultsmentioning

confidence: 99%

“…The PAHs in the soil were then extracted for the added PAHs as described by [4]. The recovery for Anthra and Phen was 96%.…”

Section: Chemical Analysismentioning

confidence: 99%

“…The remaining flasks were opened and aired each of three days for 10 min to avoid anaerobicity, then sealed again and further incubated. Chemical methodologies were carried out according to [4].…”

Section: Treatments and Experimental Set-upmentioning

confidence: 99%

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