西安工程大学学报2018，Vol.32Issue(2)：175-180,202,7.DOI:10.13338/j.issn.1674-649x.2018.02.009
化学破乳-芬顿氧化处理乳化液废水
Treatment of emulsion wastewater by the chemical demulsification-Fenton oxidation
张涛 1宗刚1
作者信息
- 1. 西安工程大学环境与化学工程学院,陕西西安710048
- 折叠
摘要
Abstract
For the problems of good stability,high COD concentration of emulsion wastewater from mechanical processing,the method of heating acid and salting-out is used for demulsifica-tion.Fenton reagent is used for oxidation treatment.The relevant factors of the treatment effect are investigated by the single factor experiment,and the optimum technological condi-tions are determined.The experimental results show that under the conditions of adding acetic acid content of 0.75 mL 98% H2SO4in 100 mL emulsion,mass ratio is 98% H2SO4and NaCl 1:1,temperature 70 ℃,time 150min,the turbidity and COD removal rate of wastewater are 93.73% and 56.95% respectively.In the Fenton oxidation process,when pH is 3,the dosage of H2O2250 mL/L and the dosage of FeSO4· 7H2O 6 g/L,the removal rate of COD is 65.7%.When the pH is adjusted to 8,aeration plus PAC sedimentation,COD drops to 10 156 mg/L,biodegradability is thus greatly improved.关键词
加热破乳/酸析/芬顿氧化/化学破乳/乳化液废水Key words
heating demulsification/acid precipitation/Fenton oxidation/chemical demulsification/emulsion wastewater分类
资源环境引用本文复制引用
张涛,宗刚..化学破乳-芬顿氧化处理乳化液废水[J].西安工程大学学报,2018,32(2):175-180,202,7.
