摘要
目前,铁路生活污水处理达标排放仍执行《污水综合排放标准》(GB 8978—1996),随着国家对水环境保护越来越重视,越来越多的城镇要求铁路生活污水排放执行更高的《城镇污水处理厂污染物排放标准》(GB18918—2002),而"水十条"的颁布加速了生活污水深度处理和污水厂提标改造的步伐。本文基于当前铁路中小站区水质水量波动大、低碳氮比、氨氮较高和缺乏市政管网条件等性质特点及其处理现状,归纳总结了新时期下铁路中小站区污水普遍存在的主要问题,最后分析了实现铁路中小站生活污水提标处理的关键因素及技术,其中自养反硝化技术被认为在低碳氮比生活污水深度脱氮提标处理中具有极好的应用前景。
At present,the Integrated Wastewater Discharge Standard（ GB 8978—1996） is still carried out as the discharge standard for railway sewage treatment. With the increasing attention payment to the protection of water environment,more and more towns are required to carry out the Pollutant Discharge Standard of Urban Sewage Treatment Plant（ GB 18918—2002） discharge. In addition,the promulgation of Water Pollution Control Action Plan（ Water Ten） has accelerated the pace of advanced treatment of domestic sewage and upgrading of sewage treatment plant. Based on the characteristics and treatment status of water quality fluctuation,low carbon nitrogen ratio（ C/N）,high ammonia nitrogen and lack of municipal pipe network conditions in the current railway stations,this paper summarized the main problems existing in the wastewater treatment at small medium stations in the new period,and analyzed the factors of achieving the advanced treatment,and finally introduced the autotrophic denitrification technology which was expected as the best method to solve the problems of advanced biological denitrification of low C/N sewage in railway.
出处
《铁路节能环保与安全卫生》
2017年第5期229-232,共4页
Railway Energy Saving & Environmental Protection & Occupational Safety and Health
基金
中国铁路总公司科技研究开发计划项目<铁路中小站区污水处理新技术研究>(编号:2016Z002-A)
关键词
铁路中小站区
生活污水
低碳氮比
深度处理
提标改造
自养反硝化
middle ＆ small railway stations
waste water
low ratio of carbon to nitrogen
advanced wastewater treatment
upgrading and reconstruction
autotrophic denitrification
