污泥发酵液强化低碳源污水氮磷去除研究  

Enhanced Nitrogen and Phosphorus Removal of Low Carbon Wastewater with Sludge Anaerobic Fermentation Liquid

作　　者：姚创 岳建雄 罗晓栋 李诗瑶 莫广生 

机构地区：[1]广东省工程技术研究所广东省水环境污染控制重点实验室,广东广州510440 [2]广东省广业环保产业集团有限公司肇庆分公司,广东肇庆526073

出　　处：《环境科学与技术》2016年第6期150-155,共6页Environmental Science & Technology

基　　金：广东省科技计划项目(2013B061800065);广州市科技计划项目科学研究专项(一般项目)(201510010283)

摘　　要：以实际污水厂进水为研究对象,开展了以乙酸钠和污泥发酵液分别作为外加碳源,用于强化微曝氧化沟脱氮除磷性能研究。数据显示,2种碳源的添加均可以稳定进水COD,同时对工艺的COD、氨氮去除没有不利影响。添加乙酸钠或污泥发酵液,可以使工艺TN去除率从28.44%分别上升至48.66%、45.71%,与此同时,TP去除率从59.39%分别提高至93.2%、96.53%,稳定后的工艺出水COD、NH_4^+-N、TN、TP均可以达到我国《城镇污水处理厂污染物排放标准》(GB 18918-2002)所规定的一级A标准。结果表明,污泥发酵液作为脱氮除磷碳源能达到和乙酸钠同样的效果,可作为商业性碳源的替代选择。The experimental research on nitrogen and phosphorus removal enhancement of A^2/O micro-aeration oxidation ditch was carried out,with sodium acetate and sludge anaerobic fermentation liquid as external carbon source and real domestic wastewater. Results showed that addition of the two carbon sources could make influent COD stable and had no adverse effects on COD and nitrogen removal. Meanwhile,the addition of sodium acetate and sludge anaerobic fermentation liquid could respectively achieve improvement of TN removal efficiency from 28.44% to 48.66% and 45.71%,and TP removal efficiency from 59.39% to 93.2% and 96.53%. The effluent concentration of COD,NH4^＋-N,TN,TP could all meet Grade Ⅰ（A）criteria specified in the Pollutant Discharge Standard of Urban Sewage Treatment Plant（GB 18918-2002）. The results revealed that sludge fermentation liquid as external carbon source for nitrogen and phosphorus removal is an alternative way to replace the commercial carbon source.

关 键 词：脱氮除磷 乙酸钠 发酵液 微曝氧化沟 

分 类 号：X703.1[环境科学与工程—环境工程]