Remediation of soils contaminated with polycyclic aromatic hydrocarbons (PAHs)

Monitoring plant response to phenanthrene using the red edge of canopy hyperspectral reflectance

“…This result could be explained by the phytoremediation of reed and associated microbes. For phytoremediation of PAHs, plants from Gramineae are used as this family contains plants with very fibrous root systems, which extend over a large surface area and have deep soil penetration (Gan et al, 2009). Reed, with an extensive root system and clonal propagation value, showed good potential in the phytoremediation of phenanthrene in combination of associated microbes (Nie et al, 2011).…”

“…This study focused on Polycyclic Aromatic Hydrocarbons (PAHs), a class of widely distributed hazardous organic chemicals with a long-term persistence in ecosystems (Nascimbene et al, 2014). PAHs also have detrimental biological effects such as mutagenicity and carcinogenicity (Gan et al, 2009;Haritash and Kaushik, 2009;Camacho et al, 2012). Therefore, we investigated the change in the red edge using phenanthrene as the pollutant, evaluating changes of red edge slope and area as indictors of vegetation stress and exploring the mechanism of spectral changes.…”

Vermiremediation and Mycoremediation of Polycyclic Aromatic Hydrocarbons in Soil and Sewage Sludge Mixture: A Comparative Study

“…Polycyclic aromatic hydrocarbons or polynuclear aromatic hydrocarbons (PAHs) are chemical compounds made up of more than two fused aromatic rings in a linear or clustered arrangement, usually containing only carbon (C) and hydrogen (H) atoms, although nitrogen (N), sulphur (S) and oxygen (O) atoms may readily substitute in the benzene ring to form heterocyclic aromatic compounds [1]. PAHs originate from pyrogenic, petrogenic and natural sources; the former two are the major anthropogenic sources of PAHs in the environment [2].…”

Potential of activated carbon to recover randomly-methylated-β-cyclodextrin solution from washing water originating from in situ soil flushing

“…1), thereby enhancing their solubility and accelerating the soil flushing process (Berselli et al, 2006). In addition, by enhancing the water solubility, apolar contaminants become more bioavailable, accelerating the bioremediation process (Gan et al, 2009;McCray et al, 2000). Because of their cyclic structure CD, in contrast to biosurfactants, adsorb very little to the soil surface (Brusseau et al, 1994;Zeng et al, 2006), which makes it more easy to reuse cyclodextrin solutions.…”