摘要
为改善微生物载体污水处理性能,以聚醚多元醇和二苯甲基二异氰酸酯（MDI）为主要原料,三乙烯二胺等为催化剂,水和二氯甲烷为发泡剂,通过熔膜开孔制备立体网络结构载体。介绍了载体的制备工艺,讨论了原料种类、用量和发泡工艺等因素对载体孔径和密度的影响,进行了立体网络结构载体和软性纤维载体的应用对比实验。结果表明,以100份聚醚多元醇、MDI指数1.05、4.0份催化剂、2.25份水、20～30份二氯四烷和0.6～2.0份硅油,原料温度25±2℃,搅拌转速600～900 rpm条件下,立体网络结构载体网化开孔效果好,是一种较好的污水处理用微生物固定化载体。
In order to improve the wastewater treatment performance of microbial carrier,polyether polyol and MDI as the main raw material, triethylenediamine as the catalyst, water and dichloromethane as the vesicant, the carrier was prepared by melting reticular layer. The process of the three-dimensional network structure carrier was introduced. The influences of the type, amount of raw materials, the foaming process and other factors on the pore size and the density were discussed. The comparative experiment was carried out on the application of the three-dimensional network structure carrier and the soft fiber carrier. The results showed that under the conditions of polyether polyol（100）, MDI index（1.05）, catalyst（4）, water（2.25）,dichloromethane（20～30） and silicone oil（0.6 ～2.0）, temperature（25 ±2 ℃） and stirring speed（600 ～900 rpm）, the melting reticular layer was perfect. The three-dimensional network structure carrier was the preferable material for wastewater treatment.
出处
《能源环境保护》
2016年第5期14-17,共4页
Energy Environmental Protection
基金
国家高技术研究发展计划(863计划)项目-固定床气化废水处理利用关键技术与示范(2015AA050501)
关键词
立体网络结构
微生物载体
污水处理
Three-dimensional network structure
Microbial carrier
Wastewater treatment
作者简介
郑利祥（1982-），男，浙江绍兴人，工学硕士。助理研究员，从事水处理方面研究与工程应用工作。
