铁碳微电解预处理腈纶废水的试验研究
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摘要
采用铁碳微电解预处理腈纶废水,通过正交试验和单因素试验研究了铁碳投加量、铁碳比、水力停留时间(HRT)及pH对处理效果的影响。试验结果表明:铁碳比为3∶4、铁碳投加量为200 mg/L、HRT为2 h、pH为4时,预处理效果最好,此时COD去除率达到33.53%,废水可生化性由0.18提升到0.34。
Acrylic fiber wastewater has been pretreated by iron carbon micro-electrolysis,and the influences of ironcarbon dosage,iron/carbon mass ratio,reaction time,and pH value on treatment effects have been investigated,through single factor tests and orthogonal tests. The results show that the pretreatment effect is optimal,when the iron/carbon mass ratio is 3 ∶4,iron-carbon dosage is 200 mg/L,HRT =2 h,and pH =4. Under these conditions,the COD removing rate by iron-carbon micro-electrolysis process reaches 33.53%,and the biodegradability is increased from0.18 to 0.34.
Acrylic fiber wastewater has been pretreated by iron carbon micro-electrolysis,and the influences of ironcarbon dosage,iron/carbon mass ratio,reaction time,and pH value on treatment effects have been investigated,through single factor tests and orthogonal tests. The results show that the pretreatment effect is optimal,when the iron/carbon mass ratio is 3 ∶4,iron-carbon dosage is 200 mg/L,HRT =2 h,and pH =4. Under these conditions,the COD removing rate by iron-carbon micro-electrolysis process reaches 33.53%,and the biodegradability is increased from0.18 to 0.34.
引文
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[2]方俊华,刘兰,穆军伟,等.铁碳微电解-Fenton法预处理苯胺基乙腈生产废水的动力学研究[J].环境工程学报,2014,8(4):1397-1404.
[3] GB 4287—2012纺织染整工业水污染物排放标准[S].
[4]舒小铭,徐灿灿,文晓刚,等.铁刨花-Fenton-絮凝工艺对染料生产废水中AOX、色度和TOC的去除效果研究[J].环境科学,2016,37(7):2618-2624.
[5]郭雅妮,强雪妮,李海红,等.不同预处理方法对活性炭纤维结构和吸附性能的影响[J].环境工程学报,2016,10(5):2227-2232.
[6]汪彩琴,高心怡,陈辉,等.微电解技术处理难降解工业废水的研究进展[J].化工环保,2016,36(5):477-481.
[7]陈威,黄燕萍,袁书保.铁碳微电解在合成制药废水中的应用[J].给水排水,2016,42(2):58-63.
[8] Zhou Guizhong,Wang Xuan,Liu Jianting,et al. Pretreatment of saline wastewater with Fe-C alloy filler[J]. Desalination&Water Treatment,2015,53(3):603-609.
[9]马小兰.铁碳微电解预处理头孢菌素抗生素制药废水试验[J].山西建筑,2013,39(20):111-113.
[10]徐薇.铁碳微电解工艺在含氟废水处理工程中的应用[J].给水排水,2016,42(4):62-64.
[11] Dsikowitzky L, Botalova O,al Sandouk-Lincke N A,et al. Identification of specific organic contaminants in different units of a chemical production site[J]. Environmental Science Processes&Impacts,2014,16(7):1779-1789.