Degradation of nitrobenzene wastewater under Fe<sup>0</sup>/GAC-Fenton enhanced by ultrasound

YU Lisheng; JIAO Weizhou; LIU Youzhi; LI Sulin; LI Aowen; ZHANG Min

doi:10.11949/j.issn.0438-1157.20161284

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Degradation of nitrobenzene wastewater under Fe⁰/GAC-Fenton enhanced by ultrasound

更新时间：2025-11-26

- Degradation of nitrobenzene wastewater under Fe⁰/GAC-Fenton enhanced by ultrasound
- CIESC Journal Issue 1, Pages: 297-304(2017)
- 作者机构：
  
  中北大学超重力化工过程山西省重点实验室,山西,太原,030051
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20161284
  CLC： 703.1
- Online First：05 January 2017，
  
  Published：05 January 2017
- 稿件说明：
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YU Lisheng, JIAO Weizhou, LIU Youzhi, et al. Degradation of nitrobenzene wastewater under Fe⁰/GAC-Fenton enhanced by ultrasound[J]. CIESC Journal, 2017, (1): 297-304. DOI: 10.11949/j.issn.0438-1157.20161284.
DOI：

YU Lisheng, JIAO Weizhou, LIU Youzhi, et al. Degradation of nitrobenzene wastewater under Fe⁰/GAC-Fenton enhanced by ultrasound[J]. CIESC Journal, 2017, (1): 297-304. DOI: 10.11949/j.issn.0438-1157.20161284. DOI：

摘要

针对铁碳微电解（Fe0/GAC）-Fenton法降解硝基苯（NB）废水时难连续运行的问题，采用超声（US）强化铁碳微电解-Fenton法降解硝基苯废水。考察了超声对铁碳微电解-Fenton法连续运行效果的影响，研究表明：不更换铁碳填料时，Fe0/GAC-Fenton法连续处理4批硝基苯废水时，硝基苯去除率从69.54%降至31.66%，TOC去除率也从48.11%降至19.20%；而US/Fe0/GAC-Fenton法处理4批相同废水时，硝基苯去除率均近至100%，TOC去除率均稳定在60%以上。与单纯Fe0/GAC-Fenton相比，超声不仅整体上强化了Fe0/GAC-Fenton法降解硝基苯废水的效率，还实现了连续多次高效运行。研究了pH、H2O2投加量及投加次数对Fenton法降解US/Fe0/GAC出水的影响规律，得到适宜操作条件：H2O2总投加量为4 ml并分5次添加，US/Fe0/GAC的出水pH调为4，反应30 min，最终硝基苯去除率达到100%，TOC去除率可达75%。

Abstract

Based on the problem of poorly continuous operation of the iron-carbon micro-electrolysis(Fe0/GAC)-Fenton method in nitrobenzene(NB) wastewater treatment

ultrasound(US) was used to strengthen Fe0/GAC-Fenton.The Effect of ultrasound on continuous running of Fe0/GAC-Fenton was studied.The results show that

when Fe0/GAC is not changed

the removal rate of NB for 4 batches of same NB wastewater treated by Fe0/GAC-Fenton drops from 69.54% to 31.66%

and TOC removal rate is down to 19.20% from 48.11%;whereas under US/Fe0/GAC-Fenton

4 times of NB removal rates are close to 100%

and TOC removal rates are above 60%.Compared with Fe0/GAC-Fenton

ultrasound not only enhance the degradation efficiency of Fe0/GAC-Fenton in NB wastewater treatment

but also achieve a continuous and efficient operation.The effect of pH

dosage and adding time of H2O2 on degradation of effluent of US/Fe0/GAC by Fenton method were studied.The suitable operating parameters are H2O2 total dosage 4 ml

adding time=5

US/Fe0/GAC effluent pH=4.Under these conditions

after 30 min

the removal rate of NB reaches 100%

TOC removal rate reaches 75%.

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Degradation of nitrobenzene wastewater under Fe0/GAC-Fenton enhanced by ultrasound

DOI：10.11949/j.issn.0438-1157.20161284

摘要

Abstract

关键词

Keywords

references

Degradation of nitrobenzene wastewater under Fe⁰/GAC-Fenton enhanced by ultrasound