Pretreatment Study of the Chemical Industrial Organic Wastewater by Reduction and Ozidation of Fe2+/ Fe3+

摘要：

Fe2+/Fe3+ reduction –oxidation treatment was investigated at laboratory scale for the degradation of chemical industrial organic wastewater containing the nonbiodegradable nitrobenzene compounds. Effects of reduction time, oxidation time, pH in oxidation and the dosage of FeSO4 were monitored. The results showed that, the appropriate reduction time was 40 min; the appropriate oxidation time was 20min. when the pH was 5, the relatively low cost and the pollutant removal rate could be achieved at the same time in the experiment. The appropriate dosage FeSO4 in the experiment was 750 mg·L-1. In this condition, the removal rate of nitrobenzene reached 71%, and removal rate of COD was high to 18%. The biodegradability of the wastewater was improved and the BOD5/CODcr value raises from original 0.17 to last 0.28 after the Fe2+/Fe3+ reduction –oxidation treatment.

关键词： Fe2+/ Fe3+ reduction –ozidation chemical industrial organic wastewater BOD5/COD value

作者: GUO Jifeng LU Yanjun

作者单位: School of Environmental Science and Engineering,Chang’an University,Xi’an 710064,Shaanxi,China Department of Civil Engineering,Xi’an Technological University,Xi’an 710032,Shaanxi,China

会议类型: 国际会议

会议名称: 2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)

会议地点: 上海

会议语种:英文

页码: 1498-1500

在线出版日期: 2009-06-02（万方平台首次上网日期，不代表论文的发表时间）