An Islamic Framework for International Marketing Ethics

Employment of polyacrylic acid beads in treatment of industrial water pollution with Pb (II) ions

“…They studied the parameters which effect on adsorption rate time of contact , adsobent dosage , pH of the aqueous solution , temperature of adsorption process , initial metal ion concentration , and the extent of adsorption curves matching with both Langmuir isotherm and Freundlich model by using a comparison of correlation coefficient of linearity curves for experimental data obtained , however they found temperature , initial concentration , pH of solution and time affecting the whole adsorption capacity [8,9,10,11] . Several types polymeric hydrogel beads have been developed and tested by removing different types of heavy metal ions besides organic dyes meanwhile the kinetic and isotherm of adsorption and other effecting parameters have been thoroughly assessed recently [12,13,14,15,16] . Low cost materials used also to treat the heavy ion metals such as lignin [17], sawdust [18], clay [19], chitosan [20] have been employed.…”