a Faculty of Science and Letters , Department of Biology , Aksaray University , Aksaray , Turkey.
b Faculty of Science and Letters , Department of Chemistry , Aksaray University , Aksaray , Turkey.
Int J Phytoremediation. 2018 Jan 28;20(2):175-183. doi: 10.1080/15226514.2017.1350137.
The metalloid boron (B) and its compounds widely exist in the environment, and boron can have hazardous effects on plants, animals, and human beings when it is found in high concentrations in water bodies. It is difficult and costly to remove B with conventional treatment methods from drinking water. Therefore, alternative and cost-effective treatment techniques are necessary. In this study, for the first time, a novel and environmentally friendly method based on the phytoremediation ability of chitosan and duckweed (Lemna gibba L.) combination was evaluated for B removal from drinking water. Our results from batch adsorption experiment indicated that the highest B uptake capacity of chitosan bead was found as 3.18 mg/g, and we determined the optimal B sorption occurs at pH value of 7. The Langmuir isotherm and pseudo-second-order kinetic model better fitted the equilibrium obtained for B removal. B in drinking water could be reduced to less than 2.4 mg L when 0.05 g of plant-based chitosan beads and 12 L. gibba fronds were used in the 4-day treatment period.
类金属硼（B）及其化合物广泛存在于环境中，当水体中硼的浓度过高时，硼会对植物、动物和人类产生有害影响。传统的水处理方法很难且成本高，无法去除饮用水中的硼。因此，需要替代的、具有成本效益的处理技术。在这项研究中，首次评估了基于壳聚糖和浮萍（浮萍）组合的植物修复能力的新型环保方法，用于从饮用水中去除硼。我们的批量吸附实验结果表明，壳聚糖珠的最高硼吸收容量为 3.18mg/g，我们确定最佳的硼吸附发生在 pH 值为 7。Langmuir 等温线和拟二级动力学模型更好地拟合了所获得的硼去除平衡。当在 4 天的处理期内使用 0.05g 基于植物的壳聚糖珠和 12L 浮萍时，饮用水中的硼可降低至 2.4mg/L 以下。
