高盐分、高浓度和高氨氮农药生产废水处理
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摘要
南通某化工有限公司的农药生产废水中含大量有机物和无机盐,呈高盐分、高浓度和高氨氮特点。由于废水中含氮杂环化合物对生物有毒性,无法直接采用生化法处理且废水中含有硫酸根,硫酸根在厌氧条件下还原成硫化物易产生硫醇和硫酚,无法采用厌氧工艺。采用蒸馏-Fenton氧化-好氧接触氧化-反硝化-硝化-絮凝沉淀组合工艺。工程运行结果表明,出水指标均达到《污水综合排放标准》(GB 8978-1996)一级标准要求,TP达到三级标准要求。
Wastewater from pesticide production contains large amounts of inorganic salts and organic compounds,characterized by high salinity,high concentration,and high ammonia-nitrogen levels. Due to the toxic effects of N-containing heterocyclic compounds on bacteria and the fact that sulfates are easily converted into mercaptans and thiophenols,it is difficult to treat wastewater by conventional biological and anaerobic technologies.Therefore,the wastewater is treated by the hereby-described technology,which includes distillation,Fenton reaction,aerobic oxidation,denitrification,nitrification,and flocculation precipitation. After treatment,the effluent quality complies with the Integrated Wastewater Discharge Standard.
Wastewater from pesticide production contains large amounts of inorganic salts and organic compounds,characterized by high salinity,high concentration,and high ammonia-nitrogen levels. Due to the toxic effects of N-containing heterocyclic compounds on bacteria and the fact that sulfates are easily converted into mercaptans and thiophenols,it is difficult to treat wastewater by conventional biological and anaerobic technologies.Therefore,the wastewater is treated by the hereby-described technology,which includes distillation,Fenton reaction,aerobic oxidation,denitrification,nitrification,and flocculation precipitation. After treatment,the effluent quality complies with the Integrated Wastewater Discharge Standard.
引文
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[13]曾薇,李磊,杨莹莹,等.A2O工艺处理生活污水短程硝化反硝化的研究.中国环境科学,2010,30(5):625-632ZENG Wei,LI Lei,YANG Yingying,et al.Short-cut nitrification and denitrification in A2O process treating domestic wastewater.China Environmental Science,2010,30(5):625-632(in Chinese)
[14]袁怡,黄勇,李祥,等.含氨和硫酸盐废水的处理技术展望.工业水处理,2012,32(11):1-5YUAN Yi,HUANG Yong,LI Xiang,et al.Prediction on the treatment techniques of wastewater containing ammonia and sulfate.Industrial Water Treatment,2012,32(11):1-5(in Chinese)
[15]袁林江,彭党聪,王志盈.短程硝化-反硝化生物脱氮.中国给水排水,2000,16(2):29-31YUAN Linjiang,PENG Dangcong,WANG Zhiying.Biological nitrogen removal by shortcut nitrification-denitrification.China Water&Wastewater,2000,16(2):29-31(in Chinese)
[2]冯义彪.高氨氮废水处理技术方法选择.海峡科学,2009(6):54-56FENG Yibiao.The selection of treatment for high ammonianitrogen wastewater.Straits Science,2009(6):54-56(in Chinese)
[3]刘正.高浓度含盐废水生物处理技术.化工环保,2004,24(Z1):209-211LIU Zheng.Biological treatment for highsalinity wastewater.Environmental Protection of Chemical Industry,2004,24(Z1):209-211(in Chinese)
[4]林齐,宋永会,李冬,等.曝气生物滤池处理工业综合废水提标改造技术研究.中国工程科学,2013,15(3):95-102LIN Qi,SONG Yonghui,LI Dong,et al.Research on industrial combined wastewater treatment for biological aerated filter upgrading.Engineering Science,2013,15(3):95-102(in Chinese)
[5]包木太,王娜,陈庆国,等.Fenton法的氧化机理及在废水处理中的应用进展.化工进展,2008,27(5):660-665BAO Mutai,WANG Na,CHEN Qingguo,et al.Oxidation mechanism and application progress of Fenton process in wastewater treatment.Chemical Industry and Engineering Progress,2008,27(5):660-665(in Chinese)
[6]张金玲,于军亭,张帅.芬顿法深度处理造纸废水.水资源与水工程学报,2011,22(3):154-156ZHANG Jinling,YU Junting,ZHANG Shuai.Advanced treatment of papermaking wastewater by Fenton method.Journal of Water Resources and Water Engineering,2011,22(3):154-156(in Chinese)
[7]许晓毅,李泊娇,胡丹,等.微电解联合Fenton氧化-混凝沉淀法预处理医药中间体废水的小试研究.水处理技术,2012,38(10):62-64XU Xiaoyi,LI Bojiao,HU Dan,et al.Study on pharmaceutical intermittent sewage pretreatment of microelectrolysisFenton oxidization and coagulating sedimentation.Technology of Water Treatment,2012,38(10):62-64(in Chinese)
[8]李润生,沈开义,李凯.我国水处理混凝剂的发展新趋势.中国给水排水,2010,26(8):145-146LI Runsheng,SHEN Kaiyi,LI Kai.New development trend of coagulant for water treatment in China.China Water&Wastewater,2010,26(8):145-146(in Chinese)
[9]周振,胡大龙,乔卫敏,等.聚合氯化铝去除污泥水中磷的工艺优化.环境科学,2014,35(6):2249-2255ZHOU Zhen,HU Dalong,QIAO Weimin,et al.Optimization for phosphorous removal in thickening and dewatering sludge water by polyaluminum chloride.Environmental Science,2014,35(6):2249-2255(in Chinese)
[10]吴昊,黄进刚,陈建军.不同絮凝剂对淀粉废水除磷效果的研究.工业水处理,2014,34(10):56-59WU Hao,HUANG Jingang,CHEN Jianjun.Research on the removing effect of phosphorus from starch wastewater by using different flocculants.Industrial Water Treatment,2014,34(10):56-59(in Chinese)
[11]左红影,甘文杰,程汉林.氧化混凝-生物铁法-二段生物接触氧化法处理环氧树脂废水的研究.广州化工,2004,32(3):20-24ZUO Hongying,GAN Wenjie,CHENG Hanlin.Experimental studies on the treatment of epoxy resin wastewater by oxidation and coagulation,bioferric process,and two-stage biological contact oxidation.Guangzhou Chemical Industry,2004,32(3):20-24(in Chinese)
[12]杜赦林.软性纤维填料生物膜法A/O脱氮系统探讨.石油化工环境保护,1995(3):1-6DU Shelin.Probe of denitrification system of A/O biological film process with soft fiber packing.Environmental Protection in Petrochemical Industry,1995(3):1-6(in Chinese)
[13]曾薇,李磊,杨莹莹,等.A2O工艺处理生活污水短程硝化反硝化的研究.中国环境科学,2010,30(5):625-632ZENG Wei,LI Lei,YANG Yingying,et al.Short-cut nitrification and denitrification in A2O process treating domestic wastewater.China Environmental Science,2010,30(5):625-632(in Chinese)
[14]袁怡,黄勇,李祥,等.含氨和硫酸盐废水的处理技术展望.工业水处理,2012,32(11):1-5YUAN Yi,HUANG Yong,LI Xiang,et al.Prediction on the treatment techniques of wastewater containing ammonia and sulfate.Industrial Water Treatment,2012,32(11):1-5(in Chinese)
[15]袁林江,彭党聪,王志盈.短程硝化-反硝化生物脱氮.中国给水排水,2000,16(2):29-31YUAN Linjiang,PENG Dangcong,WANG Zhiying.Biological nitrogen removal by shortcut nitrification-denitrification.China Water&Wastewater,2000,16(2):29-31(in Chinese)