• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Guo, Chengrui (Guo, Chengrui.) | Qin, Xia (Qin, Xia.) | Guo, Rui (Guo, Rui.) | Lv, Yue (Lv, Yue.) | Li, Mingran (Li, Mingran.) | Wang, Ziyuan (Wang, Ziyuan.) | Li, Tinghui (Li, Tinghui.)

收录:

SCIE

摘要:

The heterogeneous Fenton-like process with bimetallic chelated magnetic chitosan aerogel (Cu-Fe@CTS) as catalyst was applied to treat pre-coagulated leachate nanofiltration concentrate. The process conditions were optimized by Box-Behnken Design (BBD) and the maximum UV254 removal reached 96.06% under the conditions of temperature 87.62 degrees C, oxidant dosage 0.2395 mol/L and catalyst dosage 1 g/L. The TOC concentration was reduced from 847.5 to 99.7 mg/L and COD concentration was reduced from 1625 to 464 mg/L. The threedimensional (3D) fluorescence analysis showed that most of Fulvic acid-like (FA-like) was removed. The adsorption experiment showed that the catalyst reached the adsorption balanced after 60 min and the corresponding FA adsorption removal reached 14.1%. The addition of Tert-butanol (TBA) reduced the FA removal by 59.4%, indicating that the hydroxyl radicals (center dot OH) was the main active species. Experiments of the center dot OH capture at different pH showed that the Fenton-like system produced more center dot OH at pH of 4, at which the maximum FA removal was 96.61%, while the FA removal still reached 94.26% at pH of 7. The center dot OH capture at different temperature showed that the Fenton-like system produced more center dot OH at 90 degrees C. KI and TBA shielding experiments showed that center dot OH was produced on the catalyst surface rather than being produced by catalysis of free metal ions in the solution.

关键词:

BBD Catalyst Fenton-like Landfill leachate nanofiltration concentrate OH radical

作者机构:

  • [ 1 ] [Guo, Chengrui]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Qin, Xia]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Guo, Rui]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Lv, Yue]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Li, Mingran]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 6 ] [Wang, Ziyuan]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 7 ] [Li, Tinghui]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • [Qin, Xia]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

电子邮件地址:

查看成果更多字段

相关关键词:

来源 :

WASTE MANAGEMENT

ISSN: 0956-053X

年份: 2021

卷: 134

页码: 220-230

8 . 1 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:9

被引次数:

WoS核心集被引频次: 16

SCOPUS被引频次: 19

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 0

在线人数/总访问数:46/3277750
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司