固定化污泥与固定化小球藻共培养去除污水氮磷研究  

Study on the Removal of Nitrogen and Phosphorus from Sewage by Co-culture of Immobilized Sludge and Immobilized Chlorella

作　　者：梁慧元 张云开[1] LIANG Huiyuan;ZHANG Yunkai(College of Life Science and Technology,Guangxi University,Nanning,Guangxi,530004,China)

机构地区：[1]广西大学生命与科学与技术学院

出　　处：《广西科学》2019年第2期215-221,共7页Guangxi Sciences

基　　金：广西科学研究与技术开发计划项目(桂科合15104001-16);南宁市科学研究与技术开发计划项目(20155190)资助

摘　　要：为减少污水处理装置排出水中氮元素(N)、磷元素(P)的含量,减轻收纳土地和水体的污染,降低水华暴发的频率,本研究采用海藻酸钠分别固定小球藻和活性污泥,并以不同比例组合成共培养体系,处理经Up flow Anaerobic Sludge Bed/Blanket (USAB)工艺处理后的真实畜禽养殖废水,同时对比传统悬浮细胞方法对N、P的去除效果。结果表明,在72 h内,较低固定化污泥/固定化小球藻初始比例( R =1/3)下的共培养体系对N、P有较好的去除效率;48 h时NH 4^+ N去除率为83.2%,PO4^3- P去除率为95.1%;3个半连续批次处理中,NH 4^+ N和PO4^3- P的去除率保持相对稳定。以上结果说明藻类能促进N、P元素的去除,固定化工艺可提升去除效率,具有应用于畜禽养殖废水处理的潜力。In order to reduce the content of nitrogen (N) and phosphorus (P) in the discharge water of sewage treatment plant, reduce the pollution of the storage land and water body, and reduce the frequency of water blooms, this study used sodium alginate to fix Chlorella and active pollution and the mud was combined into a co culture system in different proportions to treat the real livestock and poultry aquaculture wastewater treated by the Up flow Anaerobic Sludge Bed/Blanket (USAB) process, and the removal effect of N and P by the traditional suspension cell method was compared. The results showed that the co culture system with lower initial immobilized sludge/immobilized Chlorella (R =1/3) had better removal efficiency for N and P within 72 h. Within 48 h, the removal rate of NH4^+ N was 83.2%, and the removal rate of PO4^ 3- P was 95.1%. The removal rates of NH 4^+ N and PO4^3- P remained relatively stable in three semi continuous batch treatments. The above results indicate that algae can promote the removal of N and P elements, and the immobilization process can improve the removal efficiency and has the potential to be applied to the treatment of livestock and poultry aquaculture wastewater.

关 键 词：固定化 活性污泥小球藻 奶牛场废水 处理 

分 类 号：Q819[生物学—生物工程]