Adsorption material for impurity removal of trona original brine and preparation method and impurity removal method thereof

The invention belongs to the field of impurity removal of trona original brine, and particularly relates to an adsorption material for impurity removal of trona original brine and a preparation method and an impurity removal method of the adsorption material. The adsorbing material for removing the impurities from the trona original brine comprises a polypropylene non-woven fabric matrix, a hydrophilic complex unit is bonded on the polypropylene non-woven fabric matrix, and the hydrophilic complex unit is a hexodontate chelating agent unit containing quaternary carboxyl and binary amino at the same time. According to the method, the polypropylene (PP) non-woven fabric is subjected to surface modification, so that the PP non-woven fabric has hydrophobic, hydrophilic and complexing characteristics at the same time, and various physical adsorption modes such as hydrophobic adsorption, hydrophilic group adsorption and functional group complexing adsorption are utilized, so that impurities such as metal ions, non-