西安市高新区第二污水厂脱氮碳源投加方案研究  

Study on Denitrification Carbon Source Scheme of Second Wastewater Treatment Plant in Xi'an High-tech Zone

作　　者：董冰峰 申胜利 孙英杰 杨斌 徐得力[3,4] 刘小英[3,4] 

机构地区：[1]中建三局集团有限公司,湖北武汉430071 [2]中建三局机电工程有限公司,湖北武汉430064 [3]武汉理工大学土木工程与建筑学院,湖北武汉430070 [4]武汉理工大学城镇供水与水污染控制技术研究中心,湖北武汉430070

出　　处：《中国给水排水》2015年第9期84-86,共3页China Water & Wastewater

基　　金：中建三局机电工程有限公司科技与设计部资助项目(20141h0335);国家自然科学基金资助项目(21407114)

摘　　要：西安市高新区第二污水厂一期规模为5×104m3/d,核心生物处理单元采用A2/O工艺,由于进水碳源不足,在污水厂调试运行期间,投加乙酸钠作为反硝化碳源,但是考虑到节约运行成本,通过一系列小试研究了白酒废水黄水作为反硝化碳源的可行性。试验结果表明,去除1 g NO-x-N需要分别投加醋酸钠和黄水4.42和7.07 g,二者的最大反硝化速率分别为34.89、16.9mg NO-3-N/(g MLVSS·h);黄水作为反硝化碳源在理论上是可行的,同时还可以降低污水处理成本、节省黄水治理费用,达到以废治废的目的。The treatment capacity of the first-stage project of Second Wastewater Treatment Plant in Xi＇ an High-tech Zone was 5 × 10^4 m3/d. The A2/O process was the core biotreatment unit. Due to shortage of influent carbon source, the sodium acetate was added as denitrification carbon source during the commissioning of WWTP. But considering the operation cost saving, the feasibility of using wastewater from fermentation of distilled spirit as denitrification carbon source was studied by a series of small-scale tests. The results showed that 1 g NOx- - N was removed by 4.42 g sodium acetate and 7.07 g wastewater from fermentation of distilled spirit respectively, and the maximum denitrification rates were 34.89 and 16.9 mgNO3- - N/（ gMLVSS ·h） respectively. The wastewater from fermentation of distilledspirit as denitrification carbon sources was theoretically feasible. At the same time, ment cost could also be reduced, and treatment cost of wastewater from fermentation saved, thus achieving the purpose of waste control by waste. the wastewater treat- of distilled spirit was

关 键 词：污水处理厂 碳源 反硝化 黄水 乙酸钠 

分 类 号：X703[环境科学与工程—环境工程]