The article highlights sorptive properties of poultry litter. Preliminary studies on sorption of Cd²⁺, Cu²⁺, Ni²⁺, Pb²⁺, Zn²⁺ ions at the concentration range of 1–1000 mg L^-1 were carried out. Langmuir and Freundlich models were used to determine the potential capacities of the poultry litter. Sorption parameter outcome from isotherms exhibited the following order: Pb > Cd > Cu > Zn > Ni. During the batch adsorption experiment, a decrease of the absorbance of solutions in the UV-Vis range was observed, proportional to the increase in the concentration of metals in the solutions. This phenomenon was associated with the precipitation of complexes of fulvic/humic-like compounds and uric acid with metals. The decrease in dissolved organic carbon (DOC) concentration confirmed previous assumptions. The FT-IR spectroscopy showed significant role of uric acid in Cd²⁺, Pb²⁺, Zn²⁺ sorption. FT-IR measurements allowed determining the type of active sites involved in sorption, especially carboxylic groups. The findings should be helpful in soil reclamation practices with poultry litter.

文章重点介绍了家禽垃圾的吸附特性。在1–1000 mg L ^-1浓度范围内吸附Cd 2 ⁺，Cu 2 ⁺，Ni 2 ⁺，Pb 2 ⁺，Zn ²⁺离子的初步研究被执行。用Langmuir和Freundlich模型确定家禽垫料的潜在能力。等温线的吸附参数结果显示以下顺序：Pb> Cd> Cu> Zn> Ni。在分批吸附实验中，观察到溶液在UV-Vis范围内的吸光度降低，与溶液中金属浓度的增加成比例。这种现象与黄腐/腐殖酸类化合物和尿酸与金属的复合物的沉淀有关。溶解有机碳（DOC）浓度的下降证实了先前的假设。FT-IR光谱显示尿酸在Cd 2 ⁺，Pb 2 ⁺，Zn ^2+中具有重要作用吸附。FT-IR测量可以确定参与吸附的活性位点的类型，尤其是羧基。该发现应有助于家禽垫料的土壤复垦。