coexisting cations have rather big impact on the adsorptive action, the sequence is as follows: Mg2+ > Ca2+ > K+ > Na+;

• 溶液中的共存阳离子对蛭石吸附氨氮具有很大的影响，影响的强弱顺序为Mg~(2+)>ca~(2+)>K~+>Na~+；