Fenton氧化处理焦化废水的工艺优化及有机物降解机制

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (1372 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要采用Fenton反应对焦化废水中污染物进行氧化处理,考察时间、pH值、H₂O₂/COD质量比和Fe²⁺/H₂O₂物质的量比对于焦化废水的降解效果,并采用响应曲面法进行参数优化,同时探究反应中有机物组分的变化规律.结果表明:Fenton氧化对于焦化废水有较好的处理效果,当pH=3.19、m(H₂O₂/COD)为1.72、n(Fe²⁺/H₂O₂)为0.74、反应时间为40min的条件下,COD的去除率达到72.69%.处理后废水的可生化性(B/C)比由0.24提高至0.32.对反应前后焦化废水中有机物进行分析,原水中共有21种有机物,种类复杂多为大分子物质,Fenton出水中有机物种类显著减少为14种.其中,含氮类有机物被完全降解,部分芳香族化合物中的苯环裂解,大部分长链有机物断裂为短链有机物,整体分子量减小.

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	冉玉芳
	徐春
	李鑫鹏
	宫瑶
	冯卫博
	胡家硕
	赵承旺

关键词 ： Fenton氧化, 焦化废水, 响应曲面法, 有机物分析, 机理

Abstract：In this study, Fenton reaction was used to oxidize pollutants in coking wastewater, and the degradation effects of time, pH, H₂O₂/COD mass ratio and Fe²⁺/H₂O₂ molar ratio on coking wastewater were investigated. The response surface method (RSM) was used to optimize parameters, and the change rule of organic compounds in the reaction was explored. The results show that Fenton oxidation has a good treatment effect on coking wastewater. Under the conditions of pH=3.19, m(H₂O₂/COD) 1.72, n(Fe²⁺/H₂O₂) 0.74 and reaction time 40min, the COD removal rate was 72.69%. The B/C ratio of treated wastewater increased from 0.24 to 0.32. According to the analysis of organic matter in coking wastewater before and after the reaction, there were 21 kinds of organic matter in raw water, most of which were macromolecular substances with complex types, while the number of organic matter in Fenton effluent was significantly reduced to 14. Among them, nitrogen-containing organic matter was completely degraded, some aromatic compounds in the benzene ring cracked, most of the long chain organic matter was broken into short chain organic matter, and the overall molecular weight decreased.

Key words： fenton oxidation coking wastewater response surface method organics analysis mechanism

收稿日期: 2023-04-13

PACS:

X703

基金资助:重庆钢铁有限公司技术攻关课题(2234000004)

通讯作者: 冉玉芳,助理工程师,1932568689@qq.com E-mail: 1932568689@qq.com

作者简介: 冉玉芳(1996-),女,重庆酉阳人,助理工程师,学士,主要从事废水处理工艺研究.发表论文2篇.1932568689@qq.com.

引用本文:

冉玉芳, 徐春, 李鑫鹏, 宫瑶, 冯卫博, 胡家硕, 赵承旺. Fenton氧化处理焦化废水的工艺优化及有机物降解机制[J]. 中国环境科学, 2023, 43(12): 6329-6340. RAN Yu-fang, XU Chun, LI Xin-peng, GONG Yao, FENG Wei-bo, HU Jia-shuo, ZHAO Cheng-wang. Process optimization and degradation mechanism of organic matter in Fenton oxidation treatment of coking wastewater. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(12): 6329-6340.

链接本文:

http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2023/V43/I12/6329

[1] 张艺臻.金属氧化物催化电极的制备及其光催化/微生物燃料电池水处理性能研究[D]. 大连:大连理工大学, 2021. Zhang Y Z. Preparation of metal oxide catalytic electrode and its photocatalytic/microbial fuel cell water treatment performance[D]. Dalian: Dalian University of Technology, 2021.
[2] Zhuang H, Han H, Jia S, et al. Advanced treatment of biologically pretreated coal gasification wastewater using a novel anoxic moving bed biofilm reactor (ANMBBR)-biological aerated filter (BAF) system[J]. Bioresource Technology, 2014,157:223-230.
[3] 赖鹏,赵华章,倪晋仁.硫酸铁混凝剂处理焦化废水A/O工艺出水的研究[J]. 中国环境科学, 2008,28(3):215-219. Lai P, Zhao H Z, Ni J R. Study on treatment of effluent from A/O coking wastewater treatment system by ferric sulphate coagulant[J]. China Environmental Science, 2008,28(3):215-219.
[4] Li J, Yuan X, Zhao H, et al. Highly efficient one-step advanced treatment of biologically pretreated coking wastewater by an integration of coagulation and adsorption process[J]. Bioresource Technology, 2018,247:1206-1209.
[5] 王娟,刘玉学,范迪.焦化废水深度处理试验研究[J]. 环境工程学报, 2009,3(10):1804-1807. Wang J, Liu Y X, Fan D. Experimental study on advanced treatment of coking wastewater[J]. Chinese Journal of Environmental Engineering, 2009,3(10):1804-1807.
[6] Pitás V, Somogyi V, Kárpáti Á, et al. Reduction of chemical oxygen demand in a conventional activated sludge system treating coke oven wastewater[J]. Journal of Cleaner Production, 2020,273:122482.
[7] Chu H, Liu X, Ma J, et al. Two-stage anoxic-oxic (A/O) system for the treatment of coking wastewater: Full-scale performance and microbial community analysis[J]. Chemical Engineering Journal, 2021,417:129204.
[8] Marañón E, Vázquez I, Rodríguez J, et al. Treatment of coke wastewater in a sequential batch reactor (SBR) at pilot plant scale[J]. Bioresource Technology, 2008,99(10):4192-4198.
[9] Zang L, Wan Y, Zhang H, et al. Characterization of non-volatile organic contaminants in coking wastewater using non-target screening: Dominance of nitrogen, sulfur, and oxygen-containing compounds in biological effluents[J]. Science of The Total Environment, 2022,837: 155768.
[10] 阳立平,肖贤明.Fenton法在焦化废水处理中的应用及研究进展[J]. 中国给水排水, 2008,24(18):9-13. Yang L P, Xiao X M. Application and research progress of Fenton method in coking wastewater treatment[J]. China Water Supply and Drainage, 2008,24(18):9-13.
[11] Jiang Y, Ran J, Mao K, et al. Recent progress in Fenton/Fenton-like reactions for the removal of antibiotics in aqueous environments[J]. Ecotoxicology and Environmental Safety, 2022,236:113464.
[12] Gao X, Zhang C, Wang Y, et al. Treatment of membrane concentrated landfill leachate by a heterogeneous electro-Fenton process with an iron-loaded needle coke cathode[J]. Journal of E Environmental Chemical Engineering, 2022,10(5):108287.
[13] Badmus K O, Irakoze N, Adeniyi O R, et al. Synergistic advance Fenton oxidation and hydrodynamic cavitation treatment of persistent organic dyes in textile wastewater[J]. Journal of Environmental Chemical Engineering, 2020,8(2):103521.
[14] 曾萍,刘诗月,张俊珂,等.芬顿法深度处理生物处理排水中的四环素抗性基因[J]. 中国环境科学, 2017,37(9):3315-3323. Zeng P, Liu S Y, Zhang J K, et al. Fenton method for in-depth treatment of tetracycline resistance genes in biotreated drainage[J]. China Environmental Science, 2017,37(9):3315-3323.
[15] Shi L, Zhang Y, Zeng C, et al. Zero sludge discharge strategy for Fenton oxidation wastewater treatment technology: Biological regeneration and in-situ cyclic utilization-A feasibility study[J]. Journal of Cleaner Production, 2022,376:134259.
[16] Xu M, Wei J, Chen X, et al. Satisfactory degradation of tetracycline by a pH-universal MnFe-LDH@BC cathode in electric Fenton process: Performances, mechanisms and toxicity assessments[J]. Journal of Environmental Chemical Engineering, 2022,10(5):108409.
[17] 范铃琴,马欣,任静,等.Fenton氧化去除焦化废水纳滤浓水中有机物的研究[J]. 工业用水与废水, 2020,51(2):11-16. Fan L Q, Ma X, Ren J, et al. Study on the removal of organics from nanofiltration concentration of coking wastewater by Fenton oxidation[J]. Industrial Water and Wastewater, 20,51(2):11-16.
[18] Tyagi M, Kumari N, Jagadevan S. A holistic Fenton oxidation- biodegradation system for treatment of phenol from coke oven wastewater: Optimization, toxicity analysis and phylogenetic analysis[J]. Journal of Water Process Engineering, 2020,37:101475.
[19] Verma V, Chaudhari P K. Optimization of multiple parameters for treatment of coking wastewater using Fenton oxidation[J]. Arabian Journal of Chemistry, 2020,13(4):5084-5095.
[20] 陈斌.Fenton法处理焦化废水的试验研究[J]. 能源环境保护, 2017,31(5):12-14. Chen B. Experimental study on the treatment of coking wastewater by Fenton process[J]. Energy and Environmental Protection, 2017,31(5): 12-14.
[21] Lima V N, Rodrigues C S D, Brandao Y B, et al. Optimisation of the degradation of 4-nitrophenol by Fenton's process[J]. Journal of Water Process Engineering, 2022,47:102685.
[22] 黄万金,杜昱,丁西明,等.垃圾渗沥液处理系统中氮的转化过程分析[J]. 环境卫生工程, 2019,27(2):77-80. Huang W, Du Y, Ding X et al. Analysis of nitrogen conversion process in waste leachate treatment system[J]. Environmental Health Engineering, 2019,27(2):77-80.
[23] 吴新宇.混凝-Fenton-A/O工艺强化脱氮处理屠宰废水的效果与机理研究[D]. 福州:福建师范大学, 2020. Wu X. Study on the effectiveness and mechanism of enhanced denitrification of slaughter wastewater by coagulation-Fenton-a/o process[D]. Fuzhou: Fujian Normal University, 2020.
[24] Jiang W, Zhang W, Li B, et al. Combined fenton oxidation and biological activated carbon process for recycling of coking plant effluent[J]. Journal of Hazardous Materials, 2011,189(1/2):308-314.
[25] Chu L, Wang J, Dong J, et al. Treatment of coking wastewater by an advanced Fenton oxidation process using iron powder and hydrogen peroxide[J]. Chemosphere, 2012,86(4):409-414.
[26] Zhang H, Yang J, Yu W, et al. Mechanism of red mud combined with Fenton's reagent in sewage sludge conditioning[J]. Water Research, 2014,59:239-247.
[27] 刘新亮,尹海亮,蔺爱国,等.Fenton试剂的反应机理及动力学研究进展[J]. 工业水处理, 2017,37(5):10-14. Liu X L, Yin H L, Lin A G, et al. Research progress on reaction mechanism and kinetics of Fenton reagent[J]. Industrial Water Treatment, 2017,37(5):10-14.
[28] 柏苏北.Fenton法深度处理焦化废水的试验研究[D]. 大连:大连海事大学, 2020. Bai S B. Advanced treatment of coking wastewater by Fenton process[D]. Dalian: Dalian Maritime University, 2020.
[29] Deng Y, Englehardt J D. Treatment of landfill leachate by the Fenton process[J]. Water research, 2006,40(20):3683-3694.
[30] Sayın F E, Karatas O, Özbay İ, et al. Treatment of real printing and packaging wastewater by combination of coagulation with Fenton and photo-Fenton processes[J]. Chemosphere, 2022,306:135539.
[31] 彭媛,赵朋飞.响应曲面法优化感应电芬顿处理活性红X-3B废水[J]. 当代化工, 2022,51(5):1014-1019. Peng Y, Zhao P F. Treatment of reactive red X-3B wastewater by response surface method[J]. Contemporary Chemical Industry, 202, 51(5):1014-1019.
[32] Guo Y, Xue Q, Zhang H, et al. Treatment of real benzene dye intermediates wastewater by the Fenton method: characteristics and multi-response optimization[J]. RSC advances, 2018,8(1):80-90.
[33] 左晨燕,何苗,张彭义,等.Fenton氧化/混凝协同处理焦化废水生物出水的研究[J]. 环境科学, 2006,(11):2201-2205. Zuo C Y, He M, Zhang P Y, et al. Synergistic treatment of biological effluent from coking wastewater by Fenton oxidation/coagulation[J]. Environmental Science, 2006,(11):2201-2205.
[34] Ribeiro J P, Marques C C, Portugal I, et al. Fenton processes for AOX removal from a kraft pulp bleaching industrial wastewater: optimisation of operating conditions and cost assessment[J]. Journal of Environmental Chemical Engineering, 2020,8(4):104032.
[35] Ramos J M P, Pereira-Queiroz N M, Santos D H S, et al. Printing ink effluent remediation: A comparison between electrochemical and Fenton treatments[J]. Journal of Water Process Engineering, 2019,31: 100803.
[36] Munoz M, Pliego G, de Pedro Z M, et al. Application of intensified Fenton oxidation to the treatment of sawmill wastewater[J]. Chemosphere, 2014,109:34-41.
[37] Wang C, Liu Y, Huang M, et al. A rational strategy of combining Fenton oxidation and biological processes for efficient nitrogen removal in toxic coking wastewater[J]. Bioresource Technology, 2022, 363:127897.
[38] Chen Q, Lü F, Zhang H, et al. Where should Fenton go for the degradation of refractory organic contaminants in wastewater?[J]. Water Research, 2022:119479.
[39] Rodríguez S, Lorenzo D, Santos A, et al. Comparison of real wastewater oxidation with Fenton/Fenton-like and persulfate activated by NaOH and Fe (II)[J]. Journal of environmental management, 2020, 255:109926.
[40] 张杨.焦化废水深度处理工艺研究[D]. 北京:北京建筑大学, 2020. Zhang Y. Research on deep treatment process of coking wastewater[D]. Beijing: Beijing Architecture University, 2020.
[41] 金学文,李恩超,吕树光,等.宝钢焦化废水处理脱氮研究与实践[J]. 环境工程学报, 2014,8(5):1965-1969. Jin X W, LI E C, Lv S G, et al. Research and practice on nitrogen removal from coking wastewater of Baosteel[J]. Chinese Journal of Environmental Engineering, 2014,8(5):1965-1969.
[42] 李朝明,曹俊,周宁莉,等.江西某焦化废水处理工程实例[J]. 水处理技术, 2021,47(11):133-135,140. Li C M, Cao J, Zhou N L, et al. An example of a coking wastewater treatment project in Jiangxi Province[J]. Water Treatment Technology, 2021,47(11):133-135,140.
[43] 皮科武,罗永强,龚文琪.混凝沉淀工艺处理酚、氰废水工程实例[J]. 湖北工业大学学报, 2009,24(1):17-19. Pi K W, Luo Y Q, Gong W Q. Treatment of phenol and cyanide wastewater by coagulation and precipitation process[J]. Journal of Hubei University of Technology, 2009,24(1):17-19.
[44] 陈浩.焦化厂粗酚精制废水零排放处理工程实例[J]. 工业水处理, 2020,40(12):115-118. Chen H. Zero discharge treatment project of crude phenol refining wastewater in coking plant[J]. Industrial Water Treatment, 2020, 40(12):115-118.