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研究了水源水和生化尾水中的代表性模拟背景污染物单宁酸和代表性有机毒物苯酚之间的竞争吸附行为,开展了单组分、同时竞争吸附和预负载竞争吸附实验.研究表明,单宁酸对苯酚在复合功能树脂上的吸附有显著削弱作用.竞争吸附机理包括孔堵塞和吸附质间作用:单宁酸对树脂上微孔的堵塞,减少了苯酚优势吸附位点的数量,降低了吸附剂表面的异质性;吸附质间作用削弱了树脂对苯酚的吸附作用力.
The competitive adsorption between tannin, a typical simulated background pollutant in source water and biochemical tailwater, and phenol, a representative organic poison, was studied and single-component competitive adsorption and preconcentration competitive adsorption experiments were carried out. The adsorption of phenol on the composite functional resin by tannin was significantly weakened.Competitive adsorption mechanisms include the role of pore plugging and adsorbate: the clogging of micropores by resin by tannic acid reduced the number of phenol adsorption sites, Reduce the heterogeneity of the surface of the adsorbent; adsorbate the role of weakening the resin adsorption of phenol force.