港陆钢铁公司焦化废水生化处理系统改造工程
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摘要
唐山港陆钢铁有限公司焦化废水生化处理系统水力停留时间短、出水水质差,严重影响了深度处理效果。针对系统存在的问题,在原废水处理设施基础上将厌氧池改为预曝气池,好氧池增加移动床生物膜反应器(MBBR)。实际运行结果表明:经合理改造后,生化处理系统运行稳定,处理效果良好,经混凝沉淀处理后,出水水质达到《炼焦化学工业污染物排放标准》(GB 16171—2012)的间接排放标准,为后续深度处理提供了有利条件。
The HRT in the biochemical treatment system of coking wastewater in Ganglu Iron & Steel Co.,Ltd.,Tangshan,was short and the water quality of the effluent was poor,which seriously affected the effect of advanced treatment. In view of the problems existed in the system,the anaerobic tank has been replaced by a pre-aeration tank and a moving bed bio-membrane reactor(MBBR) is added to the aerobic pool,on the basis of the original wastewater treatment facilities. The actual operation results show that the biochemical treatment system runs stably and the treatment effect is good,after reasonable modification. After coagulation and sedimentation treatment,the effluent quality reaches the indirect discharge criteria specified in the Discharge Standard of Pollutants for Coking Chemical Industry(GB 16171—2012),which provides favorable conditions for subsequent advanced treatment.
The HRT in the biochemical treatment system of coking wastewater in Ganglu Iron & Steel Co.,Ltd.,Tangshan,was short and the water quality of the effluent was poor,which seriously affected the effect of advanced treatment. In view of the problems existed in the system,the anaerobic tank has been replaced by a pre-aeration tank and a moving bed bio-membrane reactor(MBBR) is added to the aerobic pool,on the basis of the original wastewater treatment facilities. The actual operation results show that the biochemical treatment system runs stably and the treatment effect is good,after reasonable modification. After coagulation and sedimentation treatment,the effluent quality reaches the indirect discharge criteria specified in the Discharge Standard of Pollutants for Coking Chemical Industry(GB 16171—2012),which provides favorable conditions for subsequent advanced treatment.
引文
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[2]滕蒙,孟庆锐.利用A/A/O工艺处理焦化废水的工程实例总结[J].科学技术与工程,2010,10(3):835-838.
[3]王绍文.焦化废水无害化处理与回用技术[M].北京:冶金工业出版社,2005:46-47.
[4]邢林林,张景志,姜安平,等.焦化废水深度处理技术综述[J].工业水处理,2017,37(2):1-6.
[5]丁玲,梁玉河,刘鹏.焦化废水处理技术及其应用研究进展[J].工业水处理,2011, 31(3):6-10.
[6]刘尚超,薛改凤,张垒,等.焦化废水处理技术研究进展[J].工业水处理,2012,32(1):15-17.
[7]金涛,陈迪勤,冯卫强.焦化废水处理工程优化改造及运行[J].中国给水排水,2015(16):85-87.
[8]苏传好.移动床生物膜技术在高氨氮废水处理中的应用[J].云南化工,2017(8):87-89.