共存Fe3+对水中腐殖酸/牛血清蛋白臭氧氧化过程的影响
PDF下载 (306)吴冰滢,张文皓,张智琦,曾边浩,李 兵,高华生.共存Fe3+对水中腐殖酸/牛血清蛋白臭氧氧化过程的影响[J].宁波大学学报(理工版),2022,35(6):92-97.DOI:
WU Bingying,ZHANG Wenhao,ZHANG Zhiqi,ZENG Bianhao,LI Bing,GAO Huasheng.Effect of coexisting Fe3+ on catalytic ozonation of humic acid/bovine serum albumin in water supply systems[J].Journal of Ningbo University(Natural Science & Engineering Edition),2022,35(6):92-97.DOI:
| Title: | Effect of coexisting Fe3+ on catalytic ozonation of humic acid/bovine serum albumin in water supply systems |
| 作者: | 吴冰滢, 张文皓, 张智琦, 曾边浩, 李 兵, 高华生 |
| Author(s): | WU Bingying, ZHANG Wenhao, ZHANG Zhiqi, ZENG Bianhao, LI Bing, GAO Huasheng |
| 关键词: | 二次污染物; 腐殖酸; 牛血清蛋白; 催化臭氧氧化 |
| Keywords: | Fe3+; secondary pollutants; humic acid; bovine serum albumin; catalytic ozonation |
| 分类号: | X832 |
| 文献标识码: | A |
| 摘要: | 为探索管道腐蚀产物对供水系统典型有机污染物臭氧氧化过程的影响, 采用模拟含金属离子Fe3+与腐殖酸/牛血清蛋白的试验水, 进行均相催化臭氧氧化试验. 结果表明, 臭氧氧化腐殖酸的效率大于牛血清蛋白, 持续氧化60min, 两者去除率分别达61.9%与13.8%; Fe3+的存在对臭氧氧化腐殖酸和牛血清蛋白表现出了不同影响, 前者去除率随Fe3+投加量的增大而降低, 最大由57.6%降至46.0%, 后者去除率随Fe3+投加量的增大而升高, 最高由12.4%升至40.0%. Fe3+共存条件下, 两种污染物溶液的Zeta电位绝对值及其颗粒平均粒径均在臭氧氧化后降低; 腐殖酸与Fe3+间存在明显的凝聚作用, 其颗粒平均粒径在Fe3+投加后明显增大, 而牛血清蛋白与Fe3+间无明显凝聚, 其颗粒平均粒径变化不大. 对臭氧氧化有机污染物的机理展开讨论, 表明腐殖酸与Fe3+间的凝聚作用会抵消臭氧氧化过程中Fe3+的催化作用. 由此推论, 管道腐蚀产生的金属离子Fe3+对终端管网二次污染控制具有一定的积极作用, 包括通过催化臭氧氧化作用以强化蛋白质污染物的降解, 通过凝聚作用在过滤过程中协同去除腐殖质污染物. |
| Abstract: | In order to explore the interference mechanism of pipeline corrosions on ozonation of typical organic pollutants in water supply systems, the homogeneous catalytic ozonation experiments between Fe3+ and pollutants were carried out with simulated water containing metal ion Fe3+ and humic acid (HA) or bovine serum albumin (BSA). The results show that the ozonation efficiency of HA was higher than that of BSA. After ozonation for 60 minutes, the removal rates of two pollutants were 61.9% and 13.8% respectively. The existence of Fe3+ had different effects on ozonation of HA and BSA. The removal rate of the former decreased from 57.6% to 46.0% with the increase of Fe3+ dosage, and that of the latter increased from 12.4% to 40.0%. The two pollutant solutions’ Zeta potential in absolute value and average particle size decreased after ozonation with the coexistence of Fe3+. The average particle size of HA solution increased significantly after the addition of Fe3+, indicating obvious coagulation between HA and Fe3+. But the coagulation between BSA and Fe3+ was not obvious because there was only little change on the average particle size of the solution. The mechanism of ozonation of organic pollutants was also discussed, which stressed that the coagulation between HA and Fe3+ would offset the catalytic effect by Fe3+. It was inferred that the metal ion Fe3+ produced by pipeline corrosion could play some positive roles in secondary pollution control at the water supply network teminal, which involves enhanced degradation of protein pollutants in catalytic ozonation and synergistical removal of humic pollutants in coagulated form through filtration. |
| 参考文献 /References: | [1] 姚寰琰, 张文皓, 吴冰, 等. 社区龙头水质抽样调查与供水二次污染控制对策[J]. 宁波大学学报(理工版), 2020, 33(4):116-120. [2] 董秉直, 肖健, 华建良, 等. 高品质饮用水的思考以及苏州实践[J]. 给水排水, 2021, 57(8):19-27. [3] 金建峰. 二次供水管网污染与水质安全保障探讨[J]. 中国设备工程, 2020, 38(12):217-218. [4] Shu S H. The management of secondary water supply in China[C]//Proceedings of the International conference on education, management, commerce and society. Paris: Atlantis Press, 2015:6-9. [5] 刘艳静. 原水有机物组分(腐殖酸、蛋白质)对混凝及出水余铝影响的研究[D]. 西安: 西安建筑科技大学, 2015. [6] 郜子兴, 杨文玲. 臭氧催化氧化技术在废水处理中的研究进展[J]. 应用化工, 2017, 46(12):2455-2458; 2462. [7] 姬广雪, 刘建广, 孙韶华, 等. 饮用水源腐殖酸高级氧化去除技术研究进展[J]. 水处理技术, 2020, 46(1):12- 16. [8] 李来胜, 祝万鹏, 李中和. 催化臭氧化—–一种有前景的水处理高级氧化技术[J]. 给水排水, 2001, 27(6):26- 29. [9] Beltrán F J, Rivas F J, Montero-de-Espinosa R. Iron type catalysts for the ozonation of oxalic acid in water[J]. Water Research, 2005, 39(15):3553-3564. [10] Malvestiti J A, Cruz-Alcalde A, López-Vinent N, et al. Catalytic ozonation by metal ions for municipal waste- water disinfection and simulataneous micropollutants removal[J]. Applied Catalysis B: Environmental, 2019, 259:118104. [11] 杨艳丽, 王有乐, 王玉双. Mn2+催化臭氧化去除腐殖酸的试验研究[J]. 安徽农业科学, 2007, 35(6):1770-1771; 1774. [12] Wang J L, Chen H. Catalytic ozonation for water and wastewater treatment: Recent advances and perspective [J]. Science of the Total Environment, 2020, 704:135249. [13] 杨毅, 兰亚琼, 金鹏康, 等. 水环境中腐殖酸的荷电特性与聚集特性[J]. 环境工程学报, 2014, 8(4):1539- 1542. [14] 梁聪, 邓慧萍, 苏宇, 等. 聚合硫酸铁、硫酸铝强化混凝去除腐殖酸[J]. 净水技术, 2006, 25(2):27-31. [15] Wu C H, Kuo C Y, Chang C L. Homogeneous catalytic ozonation of C.I. Reactive Red 2 by metallic ions in a bubble column reactor[J]. Journal of Hazardous Materials, 2008, 154(1/2/3):748-755. [16] 刘卫华, 季民, 张昕, 等. 催化臭氧氧化去除垃圾渗滤液中难降解有机物的研究[J]. 环境化学, 2007, 26(1): 58-61. [17] 洪云, 张伟军, 左竟成, 等. 不同有机体系的混凝特征研究: 以硫酸铝为例[J]. 环境化学, 2015, 34(2):352- 357. |
| 备注/Memo: | 收稿日期:2022-05-10.宁波大学学报（理工版）网址:http://journallg.nbu.edu.cn/ 基金项目:宁波大学Onehealth交叉学科研究项目;宁波大学大学生科研创新计划项目（2021SRIP1419）. 第一作者:吴冰滢（1997－）,女,浙江宁波人,在读硕士研究生,主要研究方向:环境污染控制技术.E-mail:wbyingxiannv@163.com *通信作者:高华生（1965－）,男,安徽安庆人,教授,主要研究方向:环境污染控制技术.E-mail:gaohuasheng@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
