化学氧化-铁离子覆盖改性聚氨酯泡沫塑料填料的特性

化工进展

化学氧化-铁离子覆盖改性聚氨酯泡沫塑料填料的特性

杜振峰1，王芬1，成国栋2，林梦炜3，季民1

1天津大学环境科学与工程学院，天津 300072；2中国航天建设集团有限公司环境保护研究所，北京 100071； 3杭州天宇环保工程实业有限公司，浙江杭州 310022

出版日期:2012-07-05 发布日期:2012-07-05

Characteristics of polyurethane (PU) foam plastics bio-carrier modified by chemical oxidation-surface covering with iron ion

DU Zhenfeng1，WANG Fen1，CHENG Guodong2，LIN Mengwei3，JI Min1

1 School of Environment Science and Engineering，Tianjin University，Tianjin 300072，China；2 Environmental Protection Department，China Aerospace Construction Group Limited Company，Beijing 100071，China；3Hangzhou Tianyu Environmental Protection Engineering Limited Company，Hangzhou 310022，Zhejiang，China

Online:2012-07-05 Published:2012-07-05

摘要/Abstract

摘要： 采用化学氧化-铁离子覆盖改性方法对普通聚氨酯泡沫塑料填料进行改性，研究改性前后填料的表面特性、挂膜速度、生物膜量以及废水处理等性能。结果表明，改性填料表面的疏水性基团C—C、C—H比例下降了15.81%，亲水性基团C—O比例增加了16.17%，填料表面与蒸馏水的动态接触角减少了10.46°，其表面粗糙度以及亲水性提高。与未改性填料相比，改性填料生物膜量提高60%，生物膜平均每天生长量提高50%，但其生物膜脱氢酶活性并未明显提高。挂膜初期改性填料的COD和氨氮去除效果明显占优，挂膜完成后，改性填料对氨氮去除率比未改性填料高10%。

关键词: 聚氨酯填料, 改性, 生物膜, 废水处理

Abstract: A surface modification method，chemical oxidation-surface covering with iron ion，was used to modify the polyurethane (PU) foam plastics bio-carrier. And surface properties of the bio-carrier，speed of biofilm formation，quantity of biological film and performance of treating wastewater were investigated before and after modification. The results showed that the ratio of the hydrophobic C—C，C—H bond on the surface of the modified bio-carrier was reduced by 15.81%，and the ratio of the hydrophilic C—O bond on the surface of the modified bio-carrier has increased by 16.17%. The dynamic contact angle of water against the bio-carrier surface was decreased by 10.46°. The surface roughness and hydrophilicity of the bio-carrier were enhanced. Comparing modified bio-carrier with the original bio-carrier，the quantity of biofilm increased by 60%，and the average growth rate of biological film increased by 50%. But the TTC-DHA of modified bio-carrier hardly increased. At the stage of biofilm formation，the performance of COD and ammonia removal of the modified bio-carrier was better than the original bio-carrier. After completion of biofilm formation，the removal efficiency of COD was almost the same，but the removal efficiency of ammonia increased by 10%.

Key words: polyurethane bio-carrier, modification, biofilm, wastewater treatment

杜振峰1，王芬1，成国栋2，林梦炜3，季民1. 化学氧化-铁离子覆盖改性聚氨酯泡沫塑料填料的特性[J]. 化工进展.

DU Zhenfeng1，WANG Fen1，CHENG Guodong2，LIN Mengwei3，JI Min1. Characteristics of polyurethane (PU) foam plastics bio-carrier modified by chemical oxidation-surface covering with iron ion[J]. Chemical Industry and Engineering Progree.

[1]	王家庆, 宋广伟, 李强, 郭帅成, DAI Qingli. 橡胶混凝土界面改性方法及性能提升路径[J]. 化工进展, 2023, 42(S1): 328-343.
[2]	陈崇明, 陈秋, 宫云茜, 车凯, 郁金星, 孙楠楠. 分子筛基CO₂吸附剂研究进展[J]. 化工进展, 2023, 42(S1): 411-419.
[3]	顾永正, 张永生. HBr改性飞灰对Hg⁰的动态吸附及动力学模型[J]. 化工进展, 2023, 42(S1): 498-509.
[4]	朱杰, 金晶, 丁正浩, 杨会盼, 侯封校. 化学链气化中准东煤灰对CaSO₄载氧体改性及其作用机理[J]. 化工进展, 2023, 42(9): 4628-4635.
[5]	王晋刚, 张剑波, 唐雪娇, 刘金鹏, 鞠美庭. 机动车尾气脱硝催化剂Cu-SSZ-13的改性研究进展[J]. 化工进展, 2023, 42(9): 4636-4648.
[6]	李雪佳, 李鹏, 李志霞, 晋墩尚, 郭强, 宋旭锋, 宋芃, 彭跃莲. 亲水和疏水改性膜的抗结垢和润湿能力的对比[J]. 化工进展, 2023, 42(8): 4458-4464.
[7]	陈俊俊, 费昌恩, 段金汤, 顾雪萍, 冯连芳, 张才亮. 高生物活性聚醚醚酮化学改性研究进展[J]. 化工进展, 2023, 42(8): 4015-4028.
[8]	谭利鹏, 申峻, 王玉高, 刘刚, 徐青柏. 煤沥青和石油沥青共混改性的研究进展[J]. 化工进展, 2023, 42(7): 3749-3759.
[9]	殷成阳, 侯铭, 杨爽, 毛迪, 刘俊言. 过渡金属改性Cu-SSZ-13分子筛脱硝催化剂研究进展[J]. 化工进展, 2023, 42(6): 2963-2974.
[10]	陈明星, 王新亚, 张威, 肖长发. 纤维基耐高温空气过滤材料研究进展[J]. 化工进展, 2023, 42(5): 2439-2453.
[11]	李华华, 李逸航, 金北辰, 李隆昕, 成少安. 厌氧氨氧化-生物电化学耦合废水处理系统的研究进展[J]. 化工进展, 2023, 42(5): 2678-2690.
[12]	于捷, 张文龙. 锂离子电池隔膜的发展现状与进展[J]. 化工进展, 2023, 42(4): 1760-1768.
[13]	田园, 娄舒洁, 孟闪茹, 闫敬如, 肖海成. 合成气制高碳醇钴基催化剂研究进展[J]. 化工进展, 2023, 42(4): 1869-1876.
[14]	叶海星, 陈宇昊, 陈仪, 孙海翔, 牛青山. 镁锂分离复合纳滤膜研究进展[J]. 化工进展, 2023, 42(4): 1934-1943.
[15]	范思涵, 于国熙, 来超超, 何欢, 黄斌, 潘学军. 非生物改性对厌氧微生物产物光化学活性影响[J]. 化工进展, 2023, 42(4): 2180-2189.