基于MACD算法的AnMBR处理PBAT废水负荷冲击模式识别  

MACD algorithm-based pattern recognition of loading impact of PBAT wastewater treated by AnMBR

作　　者：王菁菁 董方[1] 何春华 徐璐瑶 王伟[1] WANG Jingjing;DONG Fang;HE Chunhua;XU Luyao;WANG Wei(School of Civil Engineering,Hefei University of Technology,Hefei 230041,China;College of Environmental and Energy Engineering University of Architecture,Hefei 230071,China)

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230041 [2]安徽建筑大学环境与能源工程学院,安徽合肥230071

出　　处：《工业水处理》2025年第4期78-83,175,共7页Industrial Water Treatment

基　　金：国家重点研发计划项目(2019YFC0408502);PBAT废水处理工艺技术开发项目(W2021JSKF0888);学校学术人才自主创新项目(JZ2024HGTG0304)。

摘　　要：高浓度、有毒和酸性的聚己二酸/对苯二甲酸丁二醇酯(PBAT)废水负荷冲击使得传统厌氧处理工艺面临挑战。厌氧膜生物反应器(AnMBR)具有良好的抗负荷冲击能力,但是PBAT废水负荷冲击模式识别尚未建立。基于气液两相参数的指数平滑异同移动平均(MACD)算法,遴选挥发性脂肪酸(VFA)、碱度、氢浓度、甲烷、跨膜压差(TMP)等为模式识别诊断指标,建立AnMBR的在线智能诊断系统。研究结果表明MACD算法增强了AnMBR状态参数的模式识别能力,可滤除状态参数的不规则噪声波动。选取膜污染速率(dTMP/dt)=1作为诊断阈值,通过对膜污染速率和MACD指标正/负符号特征进行组合,实现对冲击类型的快速、准确诊断,建立了多MACD指标响应综合诊断数据库映射反应器系统状态,进一步加强了PBAT废水厌氧处理的稳定运行。Highly concentrated,toxic and acidic poly(butyleneadipate-co-terephthalate)(PBAT)wastewater load shocks made conventional anaerobic treatment processes challenging.Anaerobic membrane bioreactor(AnMBR)has good load shock resistance,but PBAT wastewater load shock pattern identification had not been established.In this paper,based on the moving average convergence divergence(MACD)algorithm for gas-liquid two-phase param-eters,volatile fatty acid(VFA),alkalinity,hydrogen content,methane,and trans-membrane pressure(TMP)differ-ence were selected as the diagnostic indexes for pattern recognition,and the on-line intelligent diagnostic system of AnMBR was established.The results showed that the MACD algorithm enhanced the pattern recognition ability of the state parameters of AnMBR and could filter out the irregular noise fluctuations of the state parameters.The mem-brane contamination rate(dTMP/dt)=1 was selected as the diagnostic threshold,and by combining the membrane fouling rate and the positive/negative sign characteristics of the MACD indicators,a fast and accurate diagnosis of the impact type was realized,and a comprehensive diagnostic database of the response of multiple MACD indicators was established for mapping the reactor system state,which further strengthened the stable operation of the anaero-bic treatment of PBAT wastewater.

关 键 词：厌氧膜生物反应器 PBAT废水 负荷冲击 MACD算法 诊断识别 

分 类 号：X703.1[环境科学与工程—环境工程]