Removal of residual pesticides from water reservoirs is constantly important environmental issue, that is why many attempts are concentrated on the production of efficient adsorbents of such chemicals. In present study, activated carbons (ACs) from chars of pyrolytic (500 °C) and hydrothermal (190 °C) treatment of waste milk thistle (MT) extrudes were obtained by KOH (1:3) activation. The obtained MT-ACs have different surface characteristics: pH_PZC varied from 10.57 to 3.85 and were predominantly microporous. The S_BET changed from 940 to 2970 m² g⁻¹. For chosen activated carbons, the adsorptive properties towards isoproturon (IPU) were determined. The equilibrium time and equilibrium sorption capacity were measured. Adsorption kinetics of IPU was studied by means of pseudo-first-order, pseudo-second-order, Elovich, Bangham and Weber-Morris models, while the equilibrium models were interpreted by Freundlich and Langmuir models. The adsorption processes were relatively fast. The porosity and surface chemical characteristics influenced the kinetics as well as the mechanism of IPU adsorption, but the adsorption capacity at equilibrium was pore size dependent. The basic surface characteristics and high volume of pores with size bigger than 1.3 nm enhanced the IPU adsorption on MT-based activated carbons. The adsorption of IPU was ruled by its second widest dimension.

从水库中去除残留农药一直是重要的环境问题，这就是为什么许多尝试都集中在生产此类化学品的有效吸附剂上的原因。在本研究中，通过KOH（1：3）活化获得了热解（500°C）和水热（190°C）处理废乳蓟（MT）挤出的焦炭中的活性炭（ACs）。所获得的MT-AC具有不同的表面特性：pH _PZC在10.57至3.85之间变化并且主要是微孔的。S _BET从940变为2970 m ²  g ^-1。对于所选的活性炭，确定了对异丙隆（IPU）的吸附性能。测量平衡时间和平衡吸附容量。通过伪一级，伪二级，Elovich，Bangham和Weber-Morris模型研究了IPU的吸附动力学，而平衡模型则由Freundlich和Langmuir模型解释。吸附过程相对较快。孔隙率和表面化学特性影响动力学和IPU吸附机理，但平衡时的吸附容量取决于孔径。基本的表面特性和尺寸大于1.3 nm的大量孔增强了IPU在MT基活性炭上的吸附。IPU的吸附受其第二宽维的支配。