一种改良双污泥颗粒系统强化低碳氮比污水脱氮除磷的新工艺  

A New Process to Improve Biological Nitrogen and Phosphorus Removal by Double Sludge System Granular Sludge

作　　者：祝成成 徐莎 ZHU Chengcheng;XU Sha(School of Civil Engineering, Hubei Institute of Technology Xiaogan,Hubei 432000)

机构地区：[1]湖北工程学院土木工程学院,湖北孝感432000 [2]孝感市筑业规划设计有限公司,湖北孝感432000

出　　处：《工业安全与环保》2018年第3期99-103,共5页Industrial Safety and Environmental Protection

基　　金：湖北工程学院科学研究项目(201605)

摘　　要：以合成废水为研究对象,在序批式反应器中比较了改良双污泥系统与传统工艺在生物脱氮除磷性能、微生物种群、单位周期内营养盐和内聚物变化,并探究了可能存在的机理。结果表明,改良双污泥系统能够提高生物脱氮除磷效率,总氮和溶解性磷酸盐的去除率分别为94.6%和96.5%。荧光原位杂交实验表明改良双污泥系统中富集更多的聚磷微生物。单位周期研究显示改良双污泥系统中内聚物聚羟基烷酸酯(PHA)的最大积累量为8.5 mmol/g,高于传统工艺对照组。改良双污泥系统能够最大程度利用污水中有限的碳源以用于生物脱氮除磷。In this paper,the performances of biological nitrogen and phosphorus removal,microbial population,unit nutrient and internal polymer were compared between the modified double sludge system and traditional process using synthetic wastewater as the research object in sequencing batch reactor.And the possible mechanisms were also explored.The results showed that the modified double sludge system could improve the efficiency of biological nitrogen and phosphorus removal,and the removal rates of total nitrogen and soluble phosphate were94.6%and96.5%respectively.Fluorescence in situ hybridization indicated that more phosphorus accumulating organisms were enriched in the modified double sludge system.The unit cycle study showed that the maximum accumulation of polyhydroxyalkanoates in the modified double sludge system was8.5mmol/g,higher than that of the traditional control group.The modified double sludge system is able to maximize the use of limited carbon sources in wastewater for biological nitrogen and phosphorus removal.

关 键 词：改良双污泥系统 生物脱氮除磷 胞内聚合物 荧光原位杂交 

分 类 号：X703[环境科学与工程—环境工程]