Glyphosate (GLY) is the most commonly used herbicide worldwide, and aminomethylphosphonic acid (AMPA) is its main metabolite. Their occurrence in ground and surface waters causes diseases in humans, while complex physico-chemical properties hinder detection and effective removal. Polymer-based spherical activated carbon (PBSAC) can adsorb many micropollutants efficiently and, hence, overcome the shortfalls of conventional treatment methods. The static adsorption of a mixture of GLY and AMPA by PBSAC was investigated with varying PBSAC properties and relevant solution chemistry. The results show that PBSAC can remove 95% GLY and 57% AMPA from an initial concentration of 1 µg/L at pH 8.2. PBSAC properties (size, activation level, and surface charge) have a strong influence on herbicide removal, where surface area plays a key role. Low to neutral pH favors non-charge interactions and results in good adsorption, while higher temperatures equally enhance GLY/AMPA adsorption by PBSAC. The work demonstrated the effective removal of GLY to meet the European guideline concentration (0.1 µg/L), while AMPA could not be removed to the required level.

草甘膦 (GLY) 是世界上最常用的除草剂，氨甲基膦酸 (AMPA) 是其主要代谢产物。它们在地下水和地表水中的出现会导致人类疾病，而复杂的物理化学特性阻碍了检测和有效去除。聚合物基球形活性炭（PBSAC）可以吸附许多有效地去除微污染物，从而克服传统处理方法的不足。研究了 PBSAC 对 GLY 和 AMPA 混合物的静态吸附，其中 PBSAC 具有不同的 PBSAC 特性和相关的溶液化学性质。结果表明，在 pH 8.2 下，PBSAC 可以从 1 µg/L 的初始浓度去除 95% GLY 和 57% AMPA。PBSAC 特性（大小、活化水平和表面电荷）对除草剂去除有很大影响，其中表面积起着关键作用。低至中性 pH 值有利于非电荷相互作用并导致良好的吸附，而较高的温度同样会增强 PBSAC 对 GLY/AMPA 的吸附。该工作表明有效去除 GLY 达到欧洲指导浓度 (0.1 µg/L)，而 AMPA 无法去除到所需水平。