| 污水处理用聚乙烯醇凝胶的制备及结构与性能 |
| |
| 引用本文： | 李贤玉,叶林.污水处理用聚乙烯醇凝胶的制备及结构与性能[J].环境化学,2010,29(2). |
| |
| 作者姓名： | 李贤玉 叶林 |
| |
| 作者单位： | 高分子材料工程国家重点实验室,四川大学高分子研究所,成都,610065 |
| |
| 摘 要： | 采用化学交联法研究制备聚乙烯醇(PVA)固定化微生物凝胶用于污水处理,通过对固化剂种类、固化时间等制备工艺研究,获得了具有较高力学强度和通透性的PVA凝胶小球.对固化剂与PVA分子间相互作用、PVA凝胶交联程度及凝胶形貌进行了探讨分析.将所制备PVA凝胶小球用于污水处理,其COD去除率可达90%以上.
|
| 关 键 词： | 聚乙烯醇水凝胶 污水处理 交联度 |
PREPARATION, STRUCTURE AND PROPERTIES OF POLYVINYL-ALCOHOL HYDROGEL APPLIED IN SEWAGE DISPOSAL |
| |
| LI Xian-yu,YE Lin.PREPARATION, STRUCTURE AND PROPERTIES OF POLYVINYL-ALCOHOL HYDROGEL APPLIED IN SEWAGE DISPOSAL[J].Environmental Chemistry,2010,29(2). |
| |
| Authors: | LI Xian-yu YE Lin |
| |
| Abstract: | Polyvinyl alcohol (PVA) hydrogel beads were prepared by chemical crosslinking for the purpose of sewage disposal application.Through the investigation of the preparation technique including tgpes of crosslinking agents and crosslinking time, PVA hydrogel beads with high mechanical strength and permeability were obtained.The chemical interaction between the crosslinking agent and PVA, the crosslinking degree of the PVA hydrogel and the morphology of the beads were discussed.The COD removal rate of the hydrogel beads reached over 90% when applied in sewage disposal. |
| |
| Keywords: | PVA hydrogel sewage disposal crosslinking degree |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
