Department of Chemistry, Institute of Science and Technology, Dicle University, Diyarbakir, Turkey.
Department of Chemistry, Faculty of Education, Dicle University, Diyarbakır, Turkey.
Int J Phytoremediation. 2022;24(2):177-186. doi: 10.1080/15226514.2021.1931025. Epub 2021 Jun 4.
This study aims to investigate the sorptive performance of Pb(II) from water of a novel biochar (WPC) produced by fast pyrolysis under anoxic conditions of wild plants (WP). The maximum Pb(II) sorption capacity of WPC is 50.25 mg/g under determined optimum conditions, which are solution pH 5.0, WPC dose 50 mg, contact time 180 min and solution temperature 50 °C. The sorption kinetics and isotherm data were observed to fit well with the Ho-McKay and Langmuir models, respectively. The thermodynamic parameters (Δ, Δ and Δ) calculated for the WPC-Pb(II) sorption system showed that the process was spontaneous and endothermic. The Pb(II) desorption and regeneration studies of WPC with different desorbent agents was also performed. The findings in this study showed that WP can be used as an abundant precursor in the production of very low cost and eco-friendly biochar, and also that its biochar can be used as an environmentally-friendly sorbent in wastewater treatment. With increasing population and developing industry in the world, agriculture and industrial wastes are increasing. These wastes create environmental and water pollution and adversely affect the health of living things. Efforts to eliminate these negativities have a negative impact on the world economy. For this purpose, various improvement methods are applied. However, the adsorption method is widely used due to its ease of application, efficiency and economic. In order to make this method more economical, many researchers have carried out researches on the preparation of low-cost adsorbents, especially from vegetable wastes.The novelty of this study is the first reporting to use wild plants as a sustainable precursor to produce a low-cost biochar using the traditional pyrolysis method and to examine its adsorption performance for Pb(II) ion removal from water. I believe that if this study is published, it will create a paradigm in environmental improvement studies on wild plants evaluation.
本研究旨在探讨在缺氧条件下由野生植物（WP）快速热解制备的新型生物炭（WPC）对水中 Pb(II)的吸附性能。在确定的最佳条件下，WPC 的最大 Pb(II)吸附容量为 50.25mg/g，这些最佳条件为：溶液 pH 值 5.0、WPC 剂量 50mg、接触时间 180min 和溶液温度 50°C。吸附动力学和等温线数据分别观察到与 Ho-McKay 和 Langmuir 模型拟合良好。计算得到的 WPC-Pb(II)吸附体系的热力学参数（Δ 、Δ 和Δ）表明该过程是自发的和吸热的。还对不同解吸剂的 WPC 进行了 Pb(II)解吸和再生研究。本研究的结果表明，WP 可用作生产非常低成本和环保型生物炭的丰富前体，其生物炭也可用作废水处理中的环保吸附剂。随着世界人口的增加和工业的发展，农业和工业废物也在增加。这些废物造成了环境污染和水污染，对生物的健康产生了不利影响。消除这些负面影响对世界经济产生了负面影响。为此，人们采取了各种改进方法。然而，由于其易于应用、效率高和经济实惠，吸附法得到了广泛的应用。为了使这种方法更具经济性，许多研究人员对制备低成本吸附剂进行了研究，特别是从蔬菜废物。本研究的新颖之处在于首次报道使用野生植物作为可持续前体制备传统热解方法生产的低成本生物炭，并研究其对水中 Pb(II)离子去除的吸附性能。我相信，如果这项研究得以发表，它将在野生植物评价的环境改善研究中开创一个范例。
