仿生填料对E-A/O工艺处理生活污水性能的影响  

Effects of Bionic Packing on Performance of Ecological Vegetation-A/O Combined Process in Domestic Wastewater Treatment

作　　者：张巧 衷从强 张建 许德超 彭盛华 ZHANG Qiao;ZHONG Congqiang;ZHANG Jian;XU Dechao;PENG Shenghua(State Environmental Protection Key Laboratory of Drinking Water Source Management and Technology,Guangdong Engineering Research Center of Advanced Wastewater Treatment&Utilization,Shenzhen Key Laboratory of Drinking Water Source Control,Shenzhen Key Laboratory of Emerging Contaminants Detection&Control in Water Environment,Shenzhen Research Academy of Environmental Sciences,Shenzhen 518001,China)

机构地区：[1]深圳市环境科学研究院,国家环境保护饮用水水源地管理技术重点实验室,广东省污水深度处理及资源化利用工程技术研究中心,深圳市饮用水源地安全保障重点实验室,深圳市水环境中新型污染物检测与控制重点实验室,广东深圳518001

出　　处：《水处理技术》2020年第6期107-111,共5页Technology of Water Treatment

基　　金：深圳市科技计划项目(KJYY20170724165404571)。

摘　　要：采用立体生态污水处理组合工艺(E-A/O)处理模拟生活污水,以添加仿生生物填料的装置作为实验组(R2),未添加的作对照组(R1),考察两组工艺在污泥沉降性能、胞外聚合物产生及污染物去除等方面的差异,评估生物填料在E-A/O工艺中的作用。结果表明,R2挂膜效果良好,生物量大,出现大量原后生动物,污泥粒径大于R1,且更为密实,增加了系统菌群多样性。R2中污泥SVI和胞外聚合物(EPS)中蛋白质(PN)、多糖(PS)含量比R1中低11.8%~21.6%,表现出更强的亲水性和沉降性。污染物去除结果表明,R2对COD、NH3-N、TN和TP去除率可达96.3%、81.9%、80.0%和35.6%,除TN去除率与R1相当,其它指标去除率均高于R1,说明生物填料添加可强化E-A/O工艺的除污效果。Ecological vegetation-A/O(E-A/O)combined process was used to treat simulated domestic wastewater,two sets of reaction devices were set up,one added with bionic packing was set as the experimental group(R2),and the other without bionic packing was set as the control group(R1).The influence of bionic packing on wastewater treatment by E-A/O was investigated by comparing the differences in characteristics of sludge,extracellular polymeric substance(EPS)and pollutants removal between the two groups.The results showed that the R2 performed well in forming biofilm with a large biomass for protozoan animals growing attached,the sludge particle size was larger than R1,and was denser,consequently contributed to the more complex community structure and higher biodiversity.The SVI of sludge,and the content of protein(PN)and polysaccharide(PS)of EPS in R2 were 11.8%~21.6%lower than those in R1,demonstrating stronger hydrophily and settle ability.The results of pollutants removal showed that the removal rate of COD,NH3-N,TN and TP reached up to 96.3%,81.9%,80.0%and 35.6%respectively in R2,which were higher than R1 except TN with similar data.It indicated the addition of bionic packing in E-A/O process could strengthen the wastewater treatment.

关 键 词：立体生态污水处理组合工艺 生活污水 仿生填料 污泥沉降性能 胞外聚合物 污染物去除 

分 类 号：X799.3[环境科学与工程—环境工程]