复合碳源应用于光电废水总氮提标  

Application of Composite Carbon Source to Upgrading Standard for Total Nitrogen Removal in Photoelectric Wastewater

作　　者：童俊 齐书华 陈银霞 凌雪萍[1,3] TONG Jun;QI Shuhua;CHEN Yinxia;LING Xueping(College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,China;United EnvirontechCo.,Ltd.,Xiamen 361015,China;Fujian Provincial Key Laboratory of Chemical Biology,Xiamen 361005,China)

机构地区：[1]厦门大学化学化工学院,福建厦门361005 [2]联合环境技术<厦门>有限公司,福建厦门361015 [3]福建省化学生物学重点实验室<厦门大学>,福建厦门361005

出　　处：《净水技术》2024年第S02期101-107,共7页Water Purification Technology

基　　金：国家自然科学基金重点项目(21736009);厦门市科技计划自然科学基金(3502Z20227183)。

摘　　要：在污水处理过程中,碳源短缺是一个普遍存在的问题,而人为地添加高效率碳源对提高污水处理效率有着至关重要的作用。文章在实验室水平对一种新型复合碳源的污水处理能力进行了探究并对其主要成分进行了检测分析。研究结果显示,该碳源相比于乙酸钠等传统碳源具有更高的污染物去除能力,按照一定的投加比例,该复合碳源的总氮去除能力达到乙酸钠的近两倍。对于初始总氮质量浓度为95 mg/L和硝氮质量浓度为80 mg/L左右的污水,该碳源的最优有效COD_(Cr)质量浓度为800 mg/L,最优处理时间为24 h,总氮和硝氮去除率分别达到94.2%和93.2%,且在一周的污泥驯化中具有稳定在92%左右的总氮处理效果,展示出该新型复合碳源具有良好的应用前景。In the process of wastewater treatment,carbon source shortage is a common problem,and artificially adding highefficiency carbon sources plays a crucial role in improving wastewater treatment efficiency.This study explored wastewater treatment capacity of a new composite carbon source through laboratory experimentsand analyzed its main components.The results showed that this carbon source has higher pollutant removal efficiency than the traditional carbon sources such as sodium acetate,and the total nitrogen removal capacity of which reached nearly twice that of sodium acetate according to a certain proportion of dosing.For the sewage with an initial total nitrogen mass concentration of 95 mg/L and the nitrate nitrogen mass concentration of 80 mg/L,the optimal effective COD_(Cr) mass concentration of the carbon source was 800 mg/L,and the optimal treatment time was 24 h,which achieved the total nitrogen removal rate of 94.2%and the nitrate nitrogen removal rate of 93.2%,respectively.What's more,in a week of sludge acclimation,the composite carbon source presented a stable removal capacity of total nitrogen(about 92%),which indicates that the new composite carbon source has a good application prospect.

关 键 词：复合碳源 污水处理 总氮 硝氮 反硝化 

分 类 号：X703[环境科学与工程—环境工程]