Phytostabilization of store ‐and‐release cover made with phosphate mine wastes in arid and semiarid climate using wild local plants

The objective of this study is to assess the phytostabilization ability of SR cover using local plants. Seeds of five wild local plants:Atriplex semibaccata R. Br.,Peganum harmala L.,Asparagus horridus L.,Launaea arborescens (Batt.) Murb., andVicia sativa L., were selected and planted. Pots experiment of phosphate mine wastes (PW) and PW amended with different ratios of compost and commercial peat. These pot experiments were performed in greenhouse conditions. The germination and growth parameters studied were germination percentage (GP), mean germination time (MGT), speed of germination (SG), epigeal height, and hypogeal length evolution. Cd, Ni, As, Cu, and Zn concentrations in substrates and in plant fractions were analyzed. The results obtained using 100% PW (PW100) as the highest GP (87.50%) were obtained forA. semibaccata R. Br., followed byV. sativa L. with GP (25.00%). The uppermost MGT results showed thatA. semibaccata R. Br. (MGT  = 4.39) andL. arborescens (Batt.) Murb. (MGT  = 1.91), were the most suitable for the phosphate mine wastes. Concerning SG, the values obtained were 19.07 and 5.11, forA. semibaccata R. Br., andL. arborescens (Batt.) Murb., respectively. Regarding the epigeal and hypogeal length, respectively, the best values were obtained forA. semibaccata R. Br., andV. sativa L., with 40.70  cm and 13.73 cm for epigeal length and 20.97 cm and 82.67 cm for hypogeal length. The results obtained with different ratios of amendments showed tha...

Source: Remediation Journal - August 31, 2020 Category: Environmental Health Authors: Zine Hamza, Hakkou Rachid, El Adnani Mariam, Lamnai Kamal, Elgadi Sara, Ait B. Rachid, Midhat Laila, Eleni G. Papazogolu, Loutfi Kenza, Hafidi Mohamed, Smouni Abdelaziz, Ouhammou Ahmed Tags: RESEARCH ARTICLE Source Type: research