碳源吸收与PHA合成对PAO除磷能力的影响  

Influence of carbon source uptake and PHA synthesis on the removal ability of PAO

作　　者：韩玮[1,2] 袁林江[1] 陆林雨[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055 [2]西安科技大学地质与环境学院,陕西西安710054

出　　处：《西安建筑科技大学学报（自然科学版）》2013年第1期136-140,152,共6页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：西安市科技局创新支撑计划项目(CXY09025)

摘　　要：采用厌氧/缺氧/好氧交替运行的SBR生物除磷系统,对外碳源与聚磷菌胞内聚羟基烷酸(PHA)合成之间的转化关系进行研究,同时还对PHA合成量与聚磷菌除磷能力进行定量分析.结果表明:厌氧外碳源充足时PHA合成速率与外碳源消耗速率均符合一级速率方程.厌氧后期外碳源不足时发生内源呼吸,有少量磷的吸收,但不属于超量吸磷.好氧吸磷速率符合一级速率方程,聚磷菌每消耗1mgPHB可吸磷1.74mg,属于超量吸磷.本系统最大除磷能力可达38.16mgP/gVSS.A/O-SBR（anaerobic/aerobic alternating enhanced biological phosphorus removal system is used to study carbon source and phosphate accumulating organisms （PAO） intracellular energy storage substance transformation, The PHA synthesis and phosphorus removal ability is also andlyzed. PAO could uptake quick degradation organic matters and synthesis polyhydroxyal- kanoates（PHA）. When the carbon source was sufficient, PHA synthesis rate and external carbon source consumption rate were consistent with a first-order rate equation. When the carbon source was insufficient, occurrence of endogenous respiration and a small amount of phosphorus absorption took place, but it didn＇t belong to excess phosphorus uptake. Aerobic phosphorus uptake rate was consistent with a first-order rate equation, When PAO consumed 1 mg PHB it could absorb 1.74 mg phosphorus. The maximum phosphorus removal capacity could reach 38.16 mgP/gVSS.

关 键 词：生物除磷 聚磷菌 SBR 聚羟基烷酸酯 聚-Β-羟基丁酸 聚-β-羟基戊酸 

分 类 号：X703[环境科学与工程—环境工程]