CAJ | 학술논문

氧化沟工艺因具有流程简单、抗冲击负荷能力强、处理效果较好以及剩余污泥量少且稳定等优点而曾备受国内外推崇.为确定在强调脱氮除磷的今天,氧化沟是否一如既往地具有这样的优势而进行了一系列模拟试验.与标准A~2/O工艺进行脱氮除磷方面的功效与能效比较后发现."厌氧+氧化沟"工艺在功效方面不及A~2/O工艺,A~2/O工艺只需前者60%的体积便可以达到同样的处理效果.能耗分析表明,采用机械曝气方式的氧化沟工艺在能效方面与A~2/O工艺相当.而采用鼓风曝气+水下推进方式的氧化沟之能耗要明显高于A~2/O工艺.
양화구공예인구유류정간단、항충격부하능력강、처리효과교호이급잉여오니량소차은정등우점이증비수국내외추숭.위학정재강조탈담제린적금천,양화구시부일여기왕지구유저양적우세이진행료일계렬모의시험.여표준A~2/O공예진행탈담제린방면적공효여능효비교후발현."염양+양화구"공예재공효방면불급A~2/O공예,A~2/O공예지수전자60%적체적편가이체도동양적처리효과.능모분석표명,채용궤계폭기방식적양화구공예재능효방면여A~2/O공예상당.이채용고풍폭기+수하추진방식적양화구지능모요명현고우A~2/O공예.
Oxidation ditches were very popular at home and abroad due to their simple process configuration, strong resistance to shock loading, efficient COD removal, less and stable production of excess sludge. Nevertheless, the performance of oxidation ditches against today' s nutrient removal standards needs to be tested. Based on modeling, a practical oxidation ditch with an anaerobic reactor was compared with a standard A~2/O process. The results reveal that the oxidation ditch is inferior to the A / 0 process in biological nutrient removal (BNR). With 60% of the volume of oxidation ditch, the A~2 /O process can achieve the same removal efficiencies of COD, N and P. An analysis on energy consumption indicates that the oxidation ditch with mechanical aeration will have the same energy consumption as the A~2/O process;the oxidation ditch with bubble aeration and submerged propeller will be more energy-consuming than the A~2/O process.