化工学报 ›› 2020, Vol. 71 ›› Issue (4): 1791-1801.DOI: 10.11949/0438-1157.20190997
收稿日期:
2019-09-03
修回日期:
2019-10-31
出版日期:
2020-04-05
发布日期:
2020-04-05
通讯作者:
张兰河
作者简介:
贾艳萍(1973—),女,博士,教授,基金资助:
Yanping JIA1(),Zhen ZHANG1,Zewei TONG2,Wei WANG1,Lanhe ZHANG1()
Received:
2019-09-03
Revised:
2019-10-31
Online:
2020-04-05
Published:
2020-04-05
Contact:
Lanhe ZHANG
摘要:
针对印染废水色度高、成分复杂、难降解等问题,利用铁碳微电解工艺处理该废水,提高其可生化性和处理效率。考察初始pH、铁投加量、铁/碳质量比及反应时间对工艺的影响,通过扫描电子显微镜(SEM)、红外光谱、X射线能谱(EDS)及X射线衍射(XRD)分析反应前后铁碳结构的变化,采用Zeta电位和紫外可见光谱等对比废水处理前后有机物成分的变化,探究印染废水的降解机理。结果表明:在初始pH为4、铁投加量为80 g/L、铁/碳质量比为0.8及反应时间为90 min时,COD、浊度、色度、氨氮和TOC去除率分别为75.48%、87.88%、75.34%、92.01%和81.09%。反应前铁碳反应器的成分以Fe、C为主,活性炭的孔隙结构发达,反应后铁碳表面附着Al、K等其他金属物质和铁的氢氧化物絮体。铁碳微电解工艺可降解酯、醇类有机物为小分子物质,提高废水可生化性。
中图分类号:
贾艳萍, 张真, 佟泽为, 王嵬, 张兰河. 铁碳微电解处理印染废水的效能及机理研究[J]. 化工学报, 2020, 71(4): 1791-1801.
Yanping JIA, Zhen ZHANG, Zewei TONG, Wei WANG, Lanhe ZHANG. Study on efficiency and mechanism of iron-carbon microelectrolysis treatment of dyeing wastewater[J]. CIESC Journal, 2020, 71(4): 1791-1801.
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