【作者】 汪艳霞；

【导师】 杨云龙；

【作者基本信息】 太原理工大学 ， 市政工程， 2004， 硕士

【摘要】 本试验对生物接触氧化法中采用三种具有代表性填料处理城市污水进行了对比研究，通过试验研究为生物接触氧化法工艺中填料选用提供依据。试验结果表明，当城市污水中对COD、NH₃-N及SS去除效果要求较高时，选用陶粒填料较好，如果是对旧厂进行改造或是考虑经济问题，YDT填料比陶粒填料更具有优势。本文主要研究了以下几个内容： （1）研究了在各种外界环境条件相同的情况下，各反应器的挂膜速度，结果表明，陶粒反应器的挂膜速度最快，YDT反应器次之，炉渣反应器最慢。 （2）探讨了不同水力负荷、不同气水比对COD、NH₃-N及SS的去除效果。试验结果均表明，陶粒反应器的COD、NH₃-N及SS的去除效果均优于YDT反应器与炉渣反应器，炉渣反应器的去除效果较差。 太原理工大学硕士研究生学位论文 （3）探讨了生物接触氧化反应系统降解有机物的反应动力学模式，并给出了各反应器的动力学参数和方程。 （4）对各反应器的填料投资及运行管理费用进行了对比，研究表明，陶粒反应器的填料投资及运行管理费用较高，运行管理复杂，YDT反应器与炉渣反应器的填料投资及运行费用均比陶粒反应器低，运行管理相对容易。更多还原

【Abstract】 In the experiment, which treat municipal wastewater by bio-contact oxidition method, the basis of carrier’singling out will be provided by Experimental studying three representative kinds of carrier. Experiment results showed that ceramic granular was better, when the requirement of removal rate of COD, NH3-N and SS in municipal wastewater was better; YDT carrier had advantage over ceramic granular in case we considered existing wastewater treatment plants’ rebuilding or economic factor. The main content of this paper was as followed:(1) The experiment researched the biofilm culturing rate of every column reactor. The results showed that the biofilm culturing rate of ceramic granular column reactor was rapid thanYDT column reactor, stove slug’ biofilm culturing rate was the slowest.(2) The experiment used column reactors remove COD, NH3-N and SS of municipal wastewater in variant hydraulic loading and gas-water ratio. The results showed that ceramic granular column reactor’s removal rate of COD, NH3-N and SS were better than YDT and stove slug column reactors’ removal rate, stove slug column reactor’s removal rate was worse.(3) The kinetics model of bio-contact oxidation to decompose organic matter was probed into, and the kinetics parameter and kinetics equation were obtained.(4) The experiment calculated the investment of reactors with different carrier and their management costs. The result showed that the investment of ceramic granular reactor with carrier and its management cost was the highest compare with reactors with YDT carrier and stove slug carrier.更多还原