摘要
为了提高污水处理厂现用AO工艺的有机物去除率与脱氮除磷效率,基于ASDM数学模型,利用Bio Win软件对AO工艺进行模拟改造。通过构建AO工艺模型,模拟其出水水质。同时,在其各进水水质不变的情况下,将AO工艺模型分别改造为MLE工艺、AAO工艺、多段进水AO工艺、多段多级AO工艺模型并模拟其出水水质。各工艺出水模拟结果对比得知,多段多级AO工艺处理效果较佳,达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)中一级A标准。综合模拟结果和国内外工艺试验研究和工程应用分析,认为现用AO工艺的污水处理厂改扩建中较优工艺为多段多级AO工艺。
In order to improve the organic matter removal and denitrification and phosphorus removal efficiency in the current AO process of the wastewater treatment plant(WWTP),the AO process was simulated and transformed by Bio Win software based on the ASDM mathematical model.By constructing AO process model,whose effluent quality was simulated.At the same time,under the condition of being invariable for the influent quality,the AO process model respectively was transformed into MLE process,AAO process,step-fed AO process and multi-sects and multi-levels AO process model,whose effluent water quality was also simulated.The comparisons among the simulation results of effluent water of all the processes show that the treatment effect of multiple segment and multi-stage AO process was better,meeting the first A standard in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918—2002).Simulation results and domestic and foreign technology test research and engineering application were analyzed,accounting the step-fed and multi-stage AO process better in reconstruction process of sewage plant.
作者
马昭
李鹏
吴林杰
MA Zhao;LI Peng;WU Linjie(Xi′an Municipal Engineering Design&Research Institute Co.,Ltd.,Xi′an710068,China;Power China Guiyang Engineering Co.,Ltd.,Guiyang550081,China)
出处
《净水技术》
CAS
2022年第5期67-75,共9页
Water Purification Technology
