17 research outputs found
Toxic effect of Pb, Cd, Ni and Zn on Azolla filiculoides in the International Anzali Wetland
No full textThe limitation of plant growth in the polluted mediums can be used as a
factor to determine of plant tolerance and the toxic effect of these
mediums. In this work, the effect of Pb2+, Cd2+, Ni2+ and Zn2+
(individually) on Azolla filiculoides growth in the aqueous
solution and using this method to water post treatment were studied.
During 15 days the biomass the fresh Azolla with initial mass of 20 g
was grown on the nutrient solution containing these metal ions, each in
a concentration 4 mg/l. The presence of these ions, caused about 25%,
42%, 31% and 17% inhibition of biomass growth, respectively, in
comparison to Azolla control weight which had not heavy metals. The
water salinity of 1, 2 and 4 g. NaCl/l decreased the removal of these
heavy metals about 4-7%, 20-24% and 40-55%, respectively. The addition
of total dissolved solids (TDS) from 50 to 300 ppm. (as CaCO3) into the
samples of containing heavy metals increased Azolla growth, but
decreased the control Azolla growth
Toxicity of Diclofenac in the Fern Azolla filiculoides and the Lichen Xanthoria parietina
No full textPilot-scale study on catalytic ozonation of bio-treated dyeing and finishing wastewater using recycled waste iron shavings as a catalyst
No full textEvaluation of mercury biotransformation by heavy metal-tolerant Alcaligenes strain isolated from industrial sludge
No full textMagnetic solid phase adsorption, preconcentration and determination of methyl orange in water samples using silica coated magnetic nanoparticles and central composite design
No full textVoltammetric determination of facilitated ion transfer across the water/1,2-dichloroethane interface
No full text
