湿干比对不同人工快速渗滤系统处理厌氧折流板反应器出水的影响  

Effect of wet/dry ratio on anaerobic baffled reactor effluent treatment with different constructed rapid infiltration systems

作　　者：雷雪艳 晏雯雯 张超[1,3,4] 朱易春 彭林江[1] 吕桥岩 朱康来 LEI Xueyan;YAN Wenwen;ZHANG Chao;ZHU Yichun;PENG Linjiang;LYU Qiaoyan;ZHU Kanglai(School of Civil and Surveying&Mapping Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China;Jinchuan Group Engineering Construction Co.,Ltd.,Jinchang 737100,Gansu,China;Jiangxi Provincial Key Laboratory of Environmental Geotechnology and Engineering Disaster Control,Ganzhou 341000,Jiangxi,China;Innovation Center for Water Quality Security Technology at Ganjiang River Basin,Ganzhou 341000,Jiangxi,China)

机构地区：[1]江西理工大学土木与测绘工程学院,江西赣州341000 [2]金川集团工程建设有限公司,甘肃金昌737100 [3]江西省环境岩土与工程灾害控制重点实验室,江西赣州341000 [4]赣州市赣江流域水质安全保障技术创新中心,江西赣州341000

出　　处：《江西冶金》2023年第3期259-264,共6页Jiangxi Metallurgy

基　　金：江西省自然科学基金重点资助项目(20202ACBL204017);江西省教育厅科技研究资助项目(GJJ210874);江西理工大学高层次人才科研资助项目(205200100642)。

摘　　要：为提高人工快速渗滤系统(CRI)对厌氧折流板反应器(ABR)出水中化学需氧量(COD)和悬浮固体(SS)的去除效果,保证出水水质符合农田灌溉标准,同时保留污水中的N、P元素,通过设计3组不同填料高度(CRI_(1)为110 cm,CRI_(2)、CRI_(3)为160 cm)和不同复氧方式(CRI_(1)、CRI_(3)为自然通风,CRI_(2)为自然通风与机械通风相结合),研究了不同湿干比(1∶0、3∶1、1∶1、1∶3)对3组CRI去除COD、SS及保留N、P元素的影响。结果表明,当填料高度为160 cm、增加机械通风、湿干比为1∶0时,CRI对COD和SS的去除效果最好,且能较多地保留N、P元素,COD、SS及N、P元素的平均去除率分别为76.88%、90.80%、9.43%和66.71%,CRI出水不但满足农田灌溉水质标准,还保证了污水中的N、P元素归田,实现了水肥双重资源化。To improve the removal efficiency of Chemical Oxygen Demand(COD)and Suspended Solid(SS)of Constructed Rapid Infiltration system(CRI)to the effluent of Anaerobic Baffled Reactor(ABR),ensure that the effluent quality meets the irrigation water quality standard of crops,and retain the nitrogen and phosphorus in the sewage,three groups of CRI with different filler heights(CRI_(1)=110 cm,CRI_(2)and CRI_(3)=160 cm)and different reoxygenation methods(CRI_(1) and CRI_(3)for natural ventilation,CRI_(2)for the combination of natural ventilation and mechanical ventilation)were designed.The effects of different wet/dry ratios(1∶0,3∶1,1∶1 and 1∶3)on the removal of COD,SS and the retention of nitrogen,phosphorus in the three groups of CRI were scrutinized.The results show that the optimum removal conditions for COD and SS of CRI were a filler height of 160 cm,a wet/dry ratio of 1∶0 and increasing mechanical ventilation.The retained nitrogen and phosphorus were the best in all experiments.The average removal rates of COD,SS,total nitrogen and phosphorus were 76.88%,90.80%,9.43%and 66.71%,respectively.The effluent of CRI could not only meet the agricultural irrigation water quality standards of all crops but also ensure that the nitrogen and phosphorus in the sewage return to the field and enjoy the dual utilization of water and fertilizer.

关 键 词：人工快速渗滤系统 厌氧折流板反应器 湿干比 农田灌溉 保氮保磷 

分 类 号：X703.1[环境科学与工程—环境工程]