期刊
POLISH JOURNAL OF ENVIRONMENTAL STUDIES
卷 26, 期 3, 页码 1375-1383出版社
HARD
DOI: 10.15244/pjoes/68229
关键词
cutting fluid wastewater; combined Fenton-MBR; operational parameters; COD removal efficiency
资金
- National Natural Science Foundation of China [41672224, 41372259]
- Special Fund for Basic Scientific Research of Central Colleges (Chang'an University) [310829153311]
- Open Fund Project of Shaanxi Key Laboratory of Exploration And Comprehensive Utilization of Mineral resources [2014HB002]
Cutting fluid wastewater is a highly concentrated organic effluent generated in the production of silicon water. Because the wastewater that contains synthetic organic compounds is characterized by high COD content, complex components, and poor biodegradability, it is absolutely formidable to be fully treated using one method. Therefore, the combined Fenton- MBR process was developed and explored in this trial, in which some organic compounds such as polyethylene glycol and surfactants can be broken to little pieces by Fenton oxidation and subsequently treated by the MBR process. The operating parameters were tested and optimized respectively, and the process mechanism was revealed as well. Under optimal operating conditions of Fenton oxidation (COD concentration of 2,500 mg/L, reaction temperature of 30 degrees C, pH of 3.0, Fe2+ dosage of 20 mmol/L, H2O2 dosage of 250 mmol/L, and treatment time of 3 h) and MBR system (HRT of 8 h, DO of 1 mg/L), COD removal efficiency could reach 97%, and the effluent COD was ultimately reduced to 100 mg/L. The results demonstrated that the combined Fenton-MBR process can solve the defects of MBR, which is arduous to degrade synthetic organic compounds, improving the biodegradability of wastewater and the efficiency of contaminant removal.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据