摘要
采用Fe/C微电解与Fenton协同氧化-接触氧化组合工艺对葡萄酒废水进行处理,通过单因素、响应面实验优化了各影响因素的反应条件。结果表明,Fe/C微电解-Fenton协同氧化处理过程中,当HRT为90 min、铁炭质量比为1.5:1、铁炭投加量为115.6 mg/L、H_2O_2投加量为128.4 mL、pH为3.79时,初次处理后的COD和多酚去除率分别为78.21%、85.17%,BOD_5/COD由初始的0.39升高至0.54;通过二次处理的COD、多酚去除率、BOD_5/COD分别提高到93.63%、95.42%、0.6;后续生化处理后的最终出水COD、BOD、多酚浓度分别为87.5、19.4、4.7 mg/L,总去除率分别达到了99.2%、90.9%、99.3%,出水SS、氨氮、总氮、总磷分别为12.6、3.26、18.13、0.42 mg/L,色度为16倍,pH为7.3,出水水质均达到了GB 27631-2011排放标准。
A combined process of Fe/C electrolysis, Fenton oxidation and contact oxidation was used to treat the winery wastewater and the optimal reaction conditions were subsequently determined by single factor and response surface test. The results showed that, in the Fe/C electrolysis-Fenton process, the removal rate of COD and polyphenol was 78.21% and 85.17% respectively, and the ratio of BOD5 to COD increased from 0.39 to 0.54, when HRT, ratio of Fe to C, Fe/C dosage, 1-1202, dosage and pH was 90 min, 1.5：1, 115.6 mg/L, 128.4 mL and 3.8 respectively. The removal rate of COD and polyphenol, the ratio of BOD5 to COD reached 93.63%, 95.42% and 0.6 respectively after secondary treatment. And finally the concentration of COD, BOD and polyphenol was 87.5 mg/L, 19.4 mg/L and 4.7 mg/L respectively, with the total removal rate was 99.2%, 90.9%, 99.3% after biochemical treatment. The final mass concentrations of S S, NH4^- -N, TIN and TP in effluent was 12.6 mg/L, 3.26 rag/L, 18.13 mg/L and 0.42 mg/L respectively, meanwhile the chroma was 16 and the pH was 7.4. The effluent quality met the emission standard of the GB 27631 --2011.
出处
《水处理技术》
CAS
CSCD
北大核心
2017年第12期95-98,104,共5页
Technology of Water Treatment
基金
陕西省农业科技创新与攻关项目(2015NY019)
陕西省重点研发计划(2017NY186)
