生物脱氮新工艺过程中UASB工艺研究

STUDY ON THE UASB TECHNIQUE IN THE PROCESS OF NEW BIOLOGICAL DENITRIFICATION

以典型高浓度养殖废水为研究对象,采用UASB工艺作为其生物脱氮新工艺过程中的前期厌氧处理工艺,通过试验确定其最佳水力停留时间为1d,有机负荷为6.0kgCOD·m-3·d-1,并在此基础上对pH、温度、进水浓度等水质指标对系统最终去除效果及产气量的影响进行了分析,以期为后续工艺、神经网络模拟及"UASB+SBR短程硝化+厌氧氨氧化+土地系统"组合新工艺的工程推广应用提供一定的理论依据。

Typical high strength wastewater of breeding was used as the research object, UASB Technique was applied as the primary anaerobic treatmerit process during the biological removal of nitrification new technique process. The results showed that 1 d is the optimal hydraulic retention time and the excellent organic loading rate is 6.0 kgCOD·m^3·d^-1. The water qualityparameters, such aspH ,Temprature, inlet concentration and so on were analyzed to provide the theory basis for after/continuous process ,neural network simulation and ＂UASB＋SBR shortcut nitrification-anaerobic ammonium oxidation＋land treating system＂ new combined process spreading and application.