PTA废水是由对二甲苯(PX)生产PTA过程中产生的排水。废水成分复杂,含大量芳香烃有机物,包括难降解有机物TA和甲基苯甲酸。分析了PTA废水中的芳香烃有机物好氧降解、厌氧降解机理以及TA降解机理。分析结果表明:芳香烃有机物好氧降解速率明显高于厌氧降解速。目前,对于PTA废水处理研究集中在好氧处理和厌氧处理工艺上,重点介绍了PTA废水厌氧、好氧及厌氧-好氧处理的几种工艺及其处理效果。综合投资、能耗、污泥量、操作、处理效率等多种因素,总结出PTA废水处理的最优工艺为厌氧-好氧处理工艺,常用工艺组合包括上旋流厌氧反应器+两级好氧、水解+A/O、两级A/O等。并讨论分析了重金属钴、锰,营养物质N,P,Mg,Fe等以及温度、pH对PTA废水处理效率的影响。同时,展望了PTA废水的研究发展趋势。
Abstract
Purified Terephthalic Acid (PTA) wastewater contains a large number of aromatic hydrocarbon organic compounds, including refractory organic compounds of TA and methyl benzoic acid. In this article, the mechanisms of aerobic degradation and anaerobic degradation of aromatic hydrocarbons as well as TA degradation in PTA wastewater are analyzed. The rate of aerobic degradation is significantly higher than that of anaerobic degradation. At present, research on PTA wastewater treatment is focused on aerobic treatment and anaerobic treatment processes. Some technologies of aerobic, anaerobic and aerobic-anaerobic treatments as well as their effects are introduced. Aerobic-anaerobic treatment is summarized to be the optimal treatment process in comprehensive consideration of investment, energy consumption, sludge volume, operation, and processing efficiency. Vortex flow anaerobic reactor plus two-stage aerobic treatment, hydrolysis plus A/O, and two-stage A/O are common combinations. Furthermore, the influences of Co, Mn, nutrients, temperature and pH on the biological treatment of PTA wastewater are discussed. In addition, the development prospect of research trends in PTA wastewater treatment technology is also presented.
关键词
PTA废水 /
好氧降解 /
厌氧降解 /
生物处理 /
TA降解
Key words
PTA wastewater /
aerobic degradation /
anaerobic degradation /
biological treatment /
TA degradation
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参考文献
[1] 胡大锵, 杨 洋. PTA 废水再生处理工艺探讨[J]. 给水排水, 2014, 40(7): 43-47.
[2] VERMA S, PRASAD B, MISHRA I M. Adsorption Kinetics and Thermodynamics of COD Removal of Acid Pre-treated Petrochemical Wastewater by Using Granular Activated Carbon[J]. Separation Science and Technology, 2014, 49(7): 1067-1075.
[3] WANG C, LIU C, PEI L,et al. Experimental and Modeling Study of Pure TerephthalicAcid (PTA) Wastewater Transport in the VadoseZone[J]. Environmental Science: Processes & Impacts, 2015, 17(2): 389-397.
[4] 钟 中, 杨忠林, 吕效平, 等. 冲击负荷对厌氧折流板反应器运行性能的影响[J]. 南京工业大学学报: 自然科学版, 2013, 35(2): 103-106.
[5] 陈舒雯, 徐竟成, 李光明, 等. PTA 生产废水深度处理与再生利用技术的研究进展[J].化学世界,2013,(增刊):99-102
[6] LIU C M, WANG Z Y. Study on the Process of PTA Wastewater Treatment[J].Advanced Materials Research,2014, (955-959): 2415-2418.
[7] 盛贻林,王方园.有机污染物生物降解的机制研究进展[J].生物学杂志,2002,19(5):9-11.
[8] 张 翼, 任 烨, 王海云, 等. 对苯二甲酸降解菌的筛选鉴定及其降解特性的研究[J]. 环境科学与管理, 2015, 40(3): 95-98.
[9] ENGELHARDT G, WALLNFER P R, RAST H G, et al. Metabolism of o-Phthalic Acid by Different Gram-negative and Gram-positive Soil Bacteria[J]. Archives of Microbiology, 1976, 109(1/2): 109-114.
[10]李 刚,申立贤. 精对苯二甲酸生产废水处理技术[J].中国沼气,1995, 13(4): 1-5.
[11]徐晓百,彭建国,丘昌强.对苯二甲酸在水环境中的归势研究[M].北京:中国科技出版社,1990. 158-163.
[12]RIBBONS D W, EVANS W C. Oxidative Metabolism of Phthalic Acid by Soil Pseudomonads[J]. Journal of Biochemistry, 1960, 76(2):310-318.
[13]佟 宏, 白毓谦. 对苯二甲酸的微生物降解[J]. 环境科学学报, 1990, 10(4): 464-470.
[14]孙瑶琼, 董张磊, 葛钊锡. 固定化假单胞菌对对苯二甲酸降解情况的研究[J]. 高校实验室工作研究, 2013,(2): 50-51.
[15]CHENG S S, HO C Y, WU J H. Pilot Study of UASB Process Treating PTA Manufacturing Wastewater[J]. Water Science and Technology,1997,36(6/7): 73-82.
[16]FAJARDO C, GUYOT J P, MACARIE H, et al. Inhibition of Anaerobic Digestion by Terephthalic Acid and Its Aromatic Byproducts[J]. Water Science and Technology,1997,36(6): 83-90.
[17]KIM J Y, WOO S H, LEE M W, et al. Sequential Treatment of PTA Wastewater in a Two-stage UASB Process: Focusing on p-Toluate Degradation and Microbial Distribution[J]. Water Research, 2012, 46(8): 2805-2814.
[18]何晓红, 刘 涛, 谢福岭,等.洛阳石化PTA 废水生物处理系统污泥膨胀原因解析[J]. 2011, 37(3): 116-119.
[19]殷渝强,纪 轩. 天津石化 PTA 污水处理工艺流程的确定[J]. 河北水利水电技术,2003,(1):47-48.
[20]陈 俊,陈英文,宋天顺,等. MBR+ CSTR联合工艺处理精对苯二甲酸生产废水[J]. 环境污染与防治,2006,27(4):278-280.
[21]崔小明. 精对苯二甲酸生产废水处理技术进展[J]. 上海化工,2014,39(1):29-34.
[22]曾 波.UASB+射流曝气+MBR+UF+RO新技术处理PTA废水的工程运行及管理[J].环境科学与管理,2011,36(5):118-122.
[23]杨亚丽, 王国栋, 刘书琴, 等. 厌氧生物滤池在 PTA 废水处理中的应用[J]. 中国给水排水, 2012, 28(8):103-105.
[24]完颜华,侯 捷,孔艳娜. 水解+ A/O 工艺处理难降解石化废水的试验研究[J]. 水处理技术,2009,35(3):69-72.
[25]管国强,徐晓晨,柳丽芬,等. A/O-MBR 处理 PTA 综合废水中试研究[J]. 工业水处理,2011,31(10):64-67.
[26]刘睿倩,曲艳慧,吕丹丹,等.厌氧/好氧组合工艺处理PTA生产废水[J].中国环保产业,2015,(4):21-24.
[27]赵洪波. 生物膜A/O法处理PTA废水的试验研究[J]. 环境科学,1994,15(6):47-50.
[28]吴子斌. Co-Mn对 PTA 废水处理影响及回收利用[J]. 宁夏工程技术, 2008, 7(3): 232-234.
[29]浦 江. PTA 废水COD 去除率下降原因分析与解决措施[J]. 给水排水,2013,39(8):55-58.
[30]范 俊.PTA 生产废水高效生化处理技术的研究[D]. 南京:南京工业大学, 2004.
[31]LI X, MA K, MENG L, et al. Performance and Microbial Community Profiles in an Anaerobic Reactor Treating with Simulated PTA Wastewater: From Mesophilic to Thermophilic Temperature[J]. Water Research, 2014, 61: 57-66.
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