Assessment of fly ash-aided phytostabilisation of highly contaminated soils after an 8-year field trial

Sustainability of an in situ aided phytostabilisation on highly contaminated soils using fly ashes: Effects on the vertical distribution of physicochemical parameters and trace elements

“…Some experimental fields have been studied with these by-products, but very few results are available in the literature on experiments conducted over more than a decade of treatment (Kumpiene et al, 2012;Lopareva-Pohu et al, 2011b;Mench et al, 2006;Pourrut et al, 2011). Lopareva-Pohu et al (2011b) showed that FA buffered natural soil acidification due to the vegetation development and limited metal mobility in the soil organo-mineral layers 8 years after soil amendment.…”

“…This experimentation has already been used to assess the effects of aided phytostabilisation using fly ashes (FA), woody plants and herbaceous plants on the soil's physicochemical parameters, the vegetation and the soil mesofauna (Demuynck et al, 2014;Grumiaux et al, 2010;Lopareva-Pohu et al, 2011a, 2011bPourrut et al, 2011). In 8 years, soil has undergone a structural and chemical transformation through the formation of organic layers, root system growth and mesofauna colonisation under variable climatic conditions.…”

Effects of field metal-contaminated soils submitted to phytostabilisation and fly ash-aided phytostabilisation on the avoidance behaviour of the earthworm Eisenia fetida

“…Indeed, in one hand, FAs were seen to be effective in reducing the mobility of traces metals in soils (LoparevaPohu et al, 2011a) but also in reducing their bioavailability for plants (Pourrut et al, 2011) and for earthworms (Grumiaux et al, 2010). In addition, FAs were shown to be beneficial for the growth of herbaceous species (Lopareva-Pohu et al, 2011b) and to reduce earthworm mortality (Grumiaux et al, 2010).…”

“…In addition, FAs were shown to be beneficial for the growth of herbaceous species (Lopareva-Pohu et al, 2011b) and to reduce earthworm mortality (Grumiaux et al, 2010). On the other hand, FAs as well as FAs-treated soils were seen to result in negative effects on plants photosynthetic pigments (Lopareva-Pohu et al, 2011b) and on the growth of tree species (Pourrut et al, 2011). Regarding the earthworms, the effects of FAs and FAs-treated soils resulted in adverse effects on life history traits such as a decrease of the cocoons production (Grumiaux et al, 2007(Grumiaux et al, , 2010 and in the development of an avoidance reaction (this study).…”

Minimizing Chloride Interferences Produced by Calcium Chloride in the Determination of Cd by Graphite Furnace Atomic Absorption Spectrometry

“…Calcium chloride at 0.01 M is widely used to evaluate the environmental availability of Cd in contaminated soils [21,39,[43][44][45] and to monitor the changes in CaCl 2 -extractable Cd generated by a soil remediation technique [46][47][48]. It is so very important to obtain a good determination of CaCl 2 -extractable Cd concentrations in contaminated soils.…”