[PDF] Top 20 Lead removal from aqueous solutions by P chrysosporium

... percentage removal increased from ...pH from 3.2 to 6.5 and thereafter removal decreased from ...the removal of Pb (II) on P. chrysosporium was found ...of ... See full document

... the removal of lead (II) from an aqueous ...Optimum removal at 20 0 C was found to be ...the removal of Pb (II) from an aqueous ... See full document

... Some studies showed that the amount of adsorption increased with decreasing pH and increasing ionic strength [82, 83]. High ionic concentrations decrease the electrostatic forces inside the membrane and the actual size ... See full document

... and lead from aqueous ...for lead, by using coconut shell powder ...greatest removal ability of adsorption was found to be 97% for chromium and 93% for ... See full document

... of aqueous Hg 2+ and the quantity adsorbed on the test biosorbents at equilibrium between the liquid and solid phases was described in the present work using two common adsorption-isotherm ... See full document

... via in situ chemical oxidative polymerization method at room temperature in the presence of hydroxypropylcellulose (HPC) as a surfactant. The ability of the product for removal of lead ions from ... See full document

... of lead from a contaminated aqueous matrix by chlorides, car- bonates, and sulfates of sodium and calcium was compared to lead removal by molecular sieves and biomaterials (fish- bone, ... See full document

... of removal paraquat is adsorption because it is simple, efficient, and ...inexpensive. From a review of the literature it was found that siliceous compound [3], clay [4-5], bentonite [6], diatomaceous earth ... See full document

... The present investigation reveals that powdered chalk is an efficient material for the remediation of copper (II) ion contamination. Maximum removal percentage of 98.2% can be achieved. Adsorption capacity is also ... See full document

... correlation coefficients were listed in Table 2. It could be seen from Fig. 6 and Fig. 7 that the Langmuir isother m gave better fits than the Freundlich isotherm. Based on the value of the correlation coefficient ... See full document

... percentage removal of heavy metals by silica aerogel is shown in Figure ...seen from the figure that the percentage removal decreases with the increase in initial heavy metal ...percent ... See full document

... The thermodynamic parameters for the adsorption of As (V) ions on Lawsonia inermis are given in table 2. For the adsorption of As (V) on Lawsonia inermis , the free energy values are all negative confirming that the ... See full document

... NOM removal efficiency increased with increase in reaction time. The reason for this increase is the low production of aluminum and iron ions at the anode and hydroxide ions and hydrogen gas at the cathode during ... See full document

... dye aqueous solutions was ...the removal efficiency up to 96 and 92% for direct and disperse dye, ...pressure from 0.5 to 0.8 MPa the removal percentage increases and then, from ... See full document

... to the fact that increasing the adsorbent dose resulted in an increasing surface area, which in turn gave rise to a greater removal efficiency. 21 The initial rapid and high adsorption rate was possibly due to the ... See full document

... Effect of particles sizes: The chemical analysis data for flyash listed in table-2 shown that the material is aluminosiliceous having the oxides of aluminum and silicon together with other minor constituents. The amounts ... See full document

... The increased sorption efficiency of anionic dyes at low pH results from the change in sur- face charge of the sorbent. Probably, in the low pH, functional groups present in the CS structure (-OH) are protonated, ... See full document

... prepared from Tamarindus Indica fruit shells for the removal of two basic dyes – Rhodamine B (RB) and Malachite Green (MG) from aqueous ... See full document

... replicates of center point is performed in order to determine the influence of these factors on their interactions. The factorial design is evaluated using analytical response (removal of lead from ... See full document

... As shown in Fig. 7(b), the peak representing the O-H bond was only shifted from 3384 cm-1 to 3392.3 cm-1, which is an insignificant change. Whereas the peak of the C=O bond was shifted from 573.3 to 607.0 ... See full document