新型来源于天然甘蔗渣纤维素的绿色絮凝剂的特性与絮凝性能。
Characterization and flocculation performance of a newly green flocculant derived from natural bagasse cellulose.
机构信息
Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China.
Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China.
出版信息
Chemosphere. 2022 Aug;301:134615. doi: 10.1016/j.chemosphere.2022.134615. Epub 2022 Apr 18.
A newly green natural polymer bagasse cellulose based flocculant (PBCF) was synthesized utilizing a grafting copolymerization method for effectively enhancing humic acid (HA) removal from natural water. This work aims to investigate flocculation behavior of PBCF in synthetic water containing HA, and the effects of flocculant dose and initial solution pH on flocculation performance. Results showed that PBCF functioned well at a flocculant dose of 60 mg/L and pH ranging from 6.0 to 9.0. The organic removal efficiency in synthetic water in terms of HA (UV) and chemical oxygen demand (COD ) were up to 90.6% and 91.3%, respectively. Furthermore, the charge neutralization and adsorption bridging played important roles in HA removal. When applied for lake water, PBCF removed 91.6% turbidity and 50.0% dissolved organic matter, respectively. In short, PBCF demonstrates great potential in water treatment in a safe and environmentally friendly or 'green' way.
一种新型的绿色天然高分子蔗渣纤维素基絮凝剂（PBCF）是利用接枝共聚方法合成的，用于有效去除天然水中的腐殖酸（HA）。本工作旨在研究 PBCF 在含有 HA 的合成水中的絮凝行为，以及絮凝剂剂量和初始溶液 pH 值对絮凝性能的影响。结果表明，PBCF 在絮凝剂剂量为 60mg/L 和 pH 值为 6.0 至 9.0 的条件下效果良好。以腐殖酸（UV）和化学需氧量（COD）表示的合成水中的有机去除效率分别高达 90.6%和 91.3%。此外，电荷中和和吸附架桥在去除 HA 方面发挥了重要作用。当用于湖水时，PBCF 分别去除了 91.6%的浊度和 50.0%的溶解有机物。总之，PBCF 具有以安全和环保的“绿色”方式进行水处理的巨大潜力。
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