氯代硝基苯类生产废水处理工艺技术研究及其工业化应用
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摘要
本文以常山化工厂氯代硝基苯类废水为供试废水,通过分析废水中的典型污染物,表征其生物毒性、生物降解性,研究开发高效新型达标处理工艺技术及其工程化的应用,结果表明:
     (1)氯代硝基苯类生产废水含有多种有毒难降解的芳香类化合物,主要有:1,3-二甲基苯(1,3-DMB)、邻氯苯酚(o-CP)、邻氯苯胺(o-CA)、邻硝基酚(o-NP)、间氯苯酚(m-CP)、间氯硝基苯(m-CNB)、3,4-二氯苯胺(3,4-DCA)、对硝基酚(p-NP)、硝基苯(NB)、对氯硝基苯(p-CNB)、邻氯硝基苯(o-CNB)、氯苯(CB)等12种污染物,确定典型有机污染物为NB、p-CNB、o-CNB、p-NP;选取典型的三种目标污染物p-NP、p(o)-CNB、NB进行毒性试验,结果表明其对好氧活性污泥的毒性大小顺序依次为p-NP>p(o)-CNB>NB,对厌氧活性污泥的毒性顺序为对p(o)-CNB>NB>p-NP;并发现厌氧、好氧污泥均有转化硝基苯类、矿化苯胺类的活性;
     (2)试验所获结果初步表明A/O工艺处理氯代硝基苯生产废水基本可行,在控制进水COD<600mg╱L,A/O系统HRT 44h(A段22h,O段22h)的条件下,出水中COD<130mg/L、NAC<0.2mg╱L、AAC<2.0mg╱L,可达到GB 8978-1996二级排放标准;比较厌氧-SBR系统(A/O)与单一的SBR系统的处理效果表明,A/O系统处理效果明显优于单一的SBR系统;经GC-MS分析,A/O系统尚未完全转化o-CNB和二氯苯胺(DCA),但CP、NB、NP、p-CNB、m-CNB等化合物在系统中得到有效转化或降解;由于废水水质变化较大,为稳定处理系统的运行性能,有必要寻找经济有较的废水预处理方法;
     (3)采用Fe/C-A/O-氧化/混凝处理工艺处理氯代硝基苯类生产废水的小试研究表明:在混合废水COD_(cr) 1241~1608mg╱L,NAC 52~69.2mg╱L,AAC 161.1mg/L~260.2mg/L条件下,铁碳还原处理1h,A/O HRT36~48h,投加0.5~2‰Fe~(3+)盐或同步投加1%~2%NaClO处理,系统出水COD_(cr)<150mg╱L、AN<1mg╱L、硝基苯类浓度小于检测限,达到GB8978-96的二级排放标准,其中废水中73%以上的硝基苯类物质经Fe/C作用得以转化;
     (4)基于实验室的研究结果,实施了以Fe/C-A/O为主体工艺的处理工程,主要设计参数为:废水水量1200m~3/d,调节池HRT 24h,铁碳还原塔HRT 30min,兼氧池HRT 24h,好氧池HRT 48h,生物炭塔HRT 2h。调试过程有关工程性能为COD平均去除率71%、硝基苯类92%、苯胺类81%,系统整体上表现出较好的处理性能,出水水质达到GB8978-96中的二级排放标准,但铁碳与兼氧单元处理效果有待进一步改善。
The chloronitrobenzenes(CLNs) waste-water in Changshan Chemical Limited Corporation was studied in this thesis. Through determining the representative pollutants in the wastewater, we studied on the biological toxicity and biodegradation of these compounds, and seeked a novel effective treatment process and its application to full-scale, the results showed that:
    (1) There were several poisonous and non-degradation aromatic compounds in the CLN wastewater of Changshan Chemical Limited Company, which were 1,3-dimethylbenzene (1,3-DMB), o-chlorophenol(o-CP), o-chloroaniline(o-CA), o-nitrophenol(o-NP), w-chloro-phenol(m-CP), 772-chloronitrobenzene(/72-CNB), 3,4-dichloroaniline(3,4-DCA), /7-nitrophenol (p-NP), nitrobenzene (NB), /?-chloronitrobenzene(p-CNB), o-chloronitrobenzene(o-CNB) and chlorobenzene(CB). NB, p-CNB, o-CNB and p-NP were representative pollutants in the wastewater and was chosen as target polluants in toxic experiment, the result showed the toxic sequence of aerobic and anaerbic sludge was p-NP>p(oj-CNB>NB, /Yo,)-CNB>NB>/;-NP respectively. Aerobic and anaerbic sludge both had the ability to transform nitroaromtic compounds(NAC) into aminoaromatic compounds(AAC) and mineralize AAC then, which was demonstrated in the experiment.
    (2) The experiment demonstrated that it was feasibile to treat chloronitrobenzene wastewater with A/O process. With COD<600mg/L, hydraulic retention time(HRT) 44h(A 22h, 0 22h), the concentration of polluants and COD in the effluent could meet the second discharge standard of GB8978-1996. Comparing the treatment efficiency of A/O process with that of single SBR(sequencing batch reactor), it showed the efficiency of A/O process was obvious higher than that of single SBR process. DCA and o-CNB were not transformed completely in A/O system, but other pollutants, such as CP, NB, NP, p-CNB, m-CNB, were transformed or degradated effectively. It was necessary for us to seek economical and effective pretreatment method for the wastewater in order to stabilize the treatment system.
    (3) The results of experiment-scale study, in which the manufacture wastewater was treated with Fe/C-A/O-oxidation/flocculation process, showed that: with COD 1241-
    
    
    
    1608mg/L, NAC 52-69.2 mg/L and AAC 161.1~260.2mg/L in the mixing wastewater, Fe/C reduction for 1 hour, A/0 HRT 36-48 hours, adding 0.5~2~%oFe3+ or !%~2%NaClO for oxidation/flocculation, the concentration of pollutants in the effluent were COD<150mg/L, AN    (4) Basing on the experimental study results, Fe/C-A/O-oxidation/flocculation process was applied to practice, the major parameters were: flow 1200m3/d, mixing tank HRT 24h, anoxic tank HRT 24h, aerobic tank HRT 48h, bio-carbon tower HRT 2h. During its running, it exhibited good removal efficiency of COD and other pollutants, COD 71%, NAC 92% ?AAC 81%, and the effluent could mostly meet the second discharge standard of GB8978-96, but the removal efficiency of anoxic/aerobic units should be improved in the future.
引文
[1] 沙耀武.赵文超.含硝基苯或硝基氯苯的废水处理研究.精细化工,1996,13(58):57-59
    [2] 冯旭东,林屹,瞿福平,戴猷元。萃取转换技术治理降解有机废水.现代化工,1999,19(1):9-11
    [3] 魏凤玉.络合萃取法处理对硝基酚生产废水.工业用水与废水,1999,30(4):18-19
    [4] 朱保波.络合萃取法处理甲苯硝化废水.环境工程,1996,14(6):15-16
    [5] 彭飞.共沸蒸馏技术在氯苯废水中的应用.河南化工,1999,(7):38-39
    [6] 付春.芳香族中间体废水治理技术.上海化工,2001,(10):4-7
    [7] 张全兴,王勇,李秀娟,陈金龙.树脂吸附法处理硝基苯和硝基氯苯生产废水的研究.化工环保,1997,17(6):323-327
    [8] 姜华,张全兴.陈金龙.树脂吸附法处理邻硝基苯酚废水的研究.离子交换与吸附,2000,16(6):540-546
    [9] 范广裕,骆文仪.用磺化煤处理TNT废水的研究.北京理工大学学报,1997,17(4):523-527
    [10] 朱永安.活性炭吸附处理含苯胺、硝基苯废水的实验研究.沈阳化工.1993,(3):44-47
    [11] 郭小龙,赵文元.高分子分离膜的研究与开发利用.青岛大学学报,2000,15(4):27-31
    [12] 赵军.O_3氧化处理苯胺、硝基苯废水的试验研究,环境保护科学,1997.23(3):12-14
    [13] 唐受印,汪大翚,刘先德,谭天思.高浓度酚水的湿式氧化研究.环境科学研究,1995.8(6):37-41
    [14] 杨凤林,全燮,薛大明,赵雅芝,冯文国,苍郁.水中氯代有机化合物处理方法及研究进展.环境科学进展,1996,4(6):36-43
    [15] 席北斗.刘纯新.孔欣,周岳溪,刘鸿亮,邱熔处.负载型催化剂光催化氧化五氯酚钠的效果.环境科学,2001,22(1):41-44
    [16] 程沧沧,肖忠海,胡德文,张坚亦.UV/TiO_2-Fenton试剂系统处理制药废水的研究.环境科学研究,2001,14(2):33-35
    [17] 尹萍,杨彦希.微生物降解硝基芳香烃及其在环境保护中的应用.环境科学,1998,19(6):79-83
    [18] 韦朝海,任源,谢波,吴超飞,陈惠中,陈焕钦,硝基苯与苯胺类废水生物降解协同作用研究.环境科学研究,1999.12(3)10-13
    [19] 郝瑞霞,程水源,罗湘南.铁屑过滤法在废水处理中的应用.河北工业科技,1999,16(3):32-35
    [20] 张亚静.应金英,陈晓锋.铁碳内电解法处理印染废水,环境污染与防治,2000,22(5):33-36
    [21] 欧阳玉祝.王继徽.铁屑床处理工业废水的研究动态和应用前景.吉首大学学报(自然科学版),2001,22(2):67-70
    
    
    [22]郝瑞霞,程水源,黄群贤,铁屑过滤法预处理可生化性差的印染废水.化工环保,1999,19(3):135-139
    [23]付启道,王鸿道,张耀斌.铁碳微电解过程在印染废水脱色中的应用.大连铁道学院学报,1998,19(4):96-99
    [24]吴慧英,黄晟,舒采陶.铁屑/炭反应器-混凝沉淀处理电镀废水.湖南大学学报(自然科学版),2000,27(6):109-112
    [25]穆传奇.聚铁-铁屑法处理印刷电路板废水.工业水处理,1998,12(5):37
    [26]郝瑞霞,赵英,罗人明,赵毅,刘三学.铁屑过滤-SBR工艺处理印染废水的研究.环境科学,1998,19(3):54-57
    [27]李磊,徐传宁.铁屑还原法对偶氮染料废水脱色的研究.净水技术,1992,42(4):15-17
    [28]姚培正,岳贝贝,常晓昕,张天胜.铁屑-活性炭内电解法处理废水研究.环境科学研究,1994,7(3):54-59
    [29]周红艺,汪大晕,周明华,颜晓莉,赵伟荣.金属铁还原脱氯处理有机氯化物的研究进展.环境污染治理技术与设备,2001.6,2(3):14-20
    [30]武迎生.硝基氯苯废水的治理.化工给排水设计,1997,(1):17-27
    [31]肖羽堂.二硝基氯苯废水预处理技术研究.化工环保,1997,17(5):264-267
    [32]周集体,黄丽萍,王竞,张劲松,吕红.芳香族硝基化合物生物降解代谢研究现状与展望.大连理工大学学报,2000.12,40(增刊1):46-54
    [33]陈勇生,陈丽侠,杨杰,庄源益,戴树桂.32种芳香化合物的好氧生物降解性表征.环境化学,1997,16(1):43-48
    [34]王菊思,赵丽辉,匡欣.合成有机化合物的生物降解性研究.环境化学,1983,12(6):162-172
    [35]刘晓林.生物酸化-还原-氧化法处理硝基苯.环境污染与防治,1987,9(6):2-4,9
    [36]浙江省环境监测中心站.常山化工厂新增一万吨对(邻)硝基氯苯技改项目环保设施竣工验收监测与评价报告.1994,11
    [37]任源等.硝基苯生产废水厌氧-好氧处理的理论分析与工艺研究.应用与环境生物学报,1999,5(增刊):17
    [38]李探微,彭永臻,陈志根,韦苏,吕阳泉.活性污泥法的生物泡沫形成和控制.中国给水排水,2001,17(4):73-76
    [39]张永吉.曝气池中生物泡沫的产生和控制.中国给水排水,1991,7(2):60-62
    [40]张波.活性污泥处理厂中生物泡沫的特性及其状况.国外环境科学技术,1995,4:40-44
    
    
    [41] 王洪臣.城市污水处理厂运行控制与维护管理.科学出版社,北京,1999
    [42] 国家环保局.水和废水监测分析方法(第三版).北京,中国环境科学出版社
    [43] 中国科学院成都生物所.沼气发酵常规分析.北京,北京科学技术出版社,1984
    [44] 丁亚兰.国内外废水处理工程设计实例.北京,化学工业出版社,2000.5
    [45] Higson F. Microbial degradation of nitroaromatic compounds. Adv. Appl. Microbiol., 1992,37:1-19
    [46] Crawford R L. The microbiology and treatment of nitroaromatic compounds. Current Opinion in Biotechnology, 1995,6:329-336
    [47] Donlon B A, RazoFlores E, Lettinga G, Jim A. Continuous detoxification transformation and degradation of nitrophenols in upflow anaerobic sludge blanket (UASB) reactor. Biotechnology and Bioengineering, 1996,51: 439-449
    [48] Chamarro, Marco, Espluges. Use of Fenton regent to improve organic chemical biodegradability. Wat. Res., 2001,35(4):1047-1051
    [49] Nishino S F, Spain J C. Oxidative pathway for the biodegradation of nitrobenzene by Comamonas sp. Strain JS765. Appl. Environ. Microbiol., 1995,61(6):2308-2313
    [50] Peres C M, Navau H, Agathos S.N, Biodegradation of nitrobenzene by its simultaneous reduction into and mineralization of the aniline formed. Appl. Microbiol. Biotechnol., 1998,49:343-349
    [51] Gorontzy T, Kuver J, Blotevogel K H. Microbial transformation of nitroaromatic compounds under anaerobic conditions. J. Gen. Microbiol., 1993,139:1331-1336
    [52] Berchtold S R. VanderLoop S L, Suidan M T, Maloney S W. Treatment of 2,4-dinitrotoluene usinga two-stage system: Fluidized-bed anaerobic granular activated carbon reators and aerobic activated sludge reators. Water Environment Research, 1995,67(7): 1081-1091
    [53] Dickel O, Haug W, Knackmuss H J. Biodegradation of nitrobenzene by a sequential anaerobicaerobic process. Biodegradation, 1993,4:187-194
    [54] Livingston A G. A novel membrane bioreactor for detoxifying industrial wastewater: Biodegradation of 3-chloronitrobinzene in an industrially produced wastewater. Biotechnology and Bioengineering, 1993,41:927-936
    [55] Brookes P R, Livingston A G. Biological detoxification of a 3-chloronitrobenzene manufacture wastewater in an extractive membrane bioreactor. Wat. Res., 1994,28(6): 1347-1354
    [56] Body S A, Shelton D R, Berry D, Tiedje J M. Anaerobic biodegradation of phenolic compounds in digested sludge. Applied and Environmental Microbiology, 1983.1:50-54
    
    
    [57] Stover E I,Kincannon D F.Biological treatability of specific organic compounds found in chemical industry wastewaters.J.WPCF,1983. 1,55(1) :97-109
    [58] Sembries S,Crawford R L.Production of Clostridium bifermentans spores as inoculum for bioremediation of nitro-aromatic contaminants.Environmental Biotechnology, 1997,63(5) : 2100-2104
    [59] Splendiani A,Joaquim A G C,Jorge R,Nicolella C,Livingston A G.Development of an extrative membrane bioreactor for degradation of 3-chloro-4-methyaniline: from lab bench to pilot scale. Environmental Progress,2000,19(1) : 18-27
    [60] Lewis TA, Ederer MM, Crawford RL, Crawford DL. Microbial transformatiom of 2,4,6-trinitrotoluene.Journal of industrial microbiology & biotechnology,1997,18:89-96
    [61] Haigler B E,Spain J C.Biodegradation of 4-nitrotoluene by pseudomonas sp.Strain 4NT. Appl.Envion.Microbiol.,1993,59(7) :2239-2243
    [62] Wammer J.Activated sludge bulking and foaming control.Technomic publishing co.INC,U.S.A.,1994
    [63] Bitton G Wastewater microbiology.Ajohn wiley&sons,INC.publication,U.S.A.,1999

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