Drawing the iron 镧 changes sex 膨 smooth soil to adsorb isotherm, carrying on a data back to return to draw up to match with the Langmuir square distance and the Freundlich square distance.Express two square distances as a result all description iron with good ability 镧 to change sex 膨 smooth soil to adsorb deep red dyestuff result.Studying the iron 镧 changes sex 膨 smooth soil to adsorb dynamics, drawing iron 镧 to change sex 膨 smooth soil to adsorb dynamics curve.Carry on a data back to return to draw up to match with the Bangham square distance and the Langmuir square distance, express two square distances as a result all description iron with good ability 镧 to change sex 膨 smooth soil to adsorb deep red dyestuff regulation.From this, the iron 镧 changes sex 膨 smooth soil Be handling the dyestuff waste water contain very high application value, will get necessarily extensively applied.