曝气与进水分流强化地下渗滤系统污水净化效果  

Removal performance strengthened by intermittent aeration and influent shunt distributing in subsurface infiltration system

作　　者：潘晶 张智宇 孙博 张滢 邱雨 黄琳丽 佟德利 PAN Jing;ZHANG Zhiyu;SUN Bo;ZHANG Ying;QIU Yu;HUANG Linli;TONG Deli(College of Life Science, Shenyang Normal University, Shenyang 110034, China)

机构地区：[1]沈阳师范大学生命科学学院,沈阳110034

出　　处：《沈阳师范大学学报（自然科学版）》2020年第4期332-338,共7页Journal of Shenyang Normal University:Natural Science Edition

基　　金：国家自然科学基金资助项目(41471394);辽宁省科技厅自然科学基金资助项目(20180550503);辽宁省教育厅高等学校创新人才资助项目(LR2018080);辽宁省百千万工程资助项目(2019921076)。

摘　　要：地下渗滤处理系统(subsurface infiltration system,SIS)是以生态学原理为基础形成的好氧与厌氧相协同的污水生态处理技术。分别研究了曝气与进水分流对3种SIS中基质溶解氧(DO)和污水净化效果的影响,即:SIS A(无间歇曝气和进水分流系统)、SIS B(进水分流系统)、SIS C(有间歇曝气和进水分流系统)。研究结果表明:间歇曝气创造了基质50 cm深度的好氧环境,并没有改变基质80 cm和110 cm深度的缺氧或厌氧环境;在适当的分流比下,进水分流提高了反硝化作用,对化学需氧量(COD)、总磷(TP)和氨氮(NH3-N)的去除效果没有显著影响;最佳分流比为1∶2时,SIS C对COD、TP、NH3-N和TN去除率分别为:90.06%、93.17%、88.20%和85.79%;SIS C的去除率高于SIS A(COD:82.56%,TP:92.76%,NH3-N:71.08%,TN:49.24%)和最佳分流比为1∶3时的SIS B(COD:81.12%,TP:92.58%,NH3-N:69.14%,TN:58.73%)。Subsurface infiltration system(SIS)is an integrated wastewater treatment technology based on the ecological principle.In this study,matrix dissolved oxygen(DO),removal performance of COD,TP and nitrogen in SISs,named SIS A(without intermittent aeration and influent shunt distributing),SIS B(with influent shunt distributing)and SIS C(with intermittent aeration and influent shunt distributing)were investigated.The results showed that aerobic environment are developed at 50 cm depth and anoxic or anaerobic environment are not changed at 80 and 110 cm depths by intermittent aeration.Under the optimal shunt ratio of 1∶2 for SIS C,high average COD,TP,NH3-N and TN removal efficiencies of 90.06%,93.17%,88.20%and 85.79%are achieved,which are higher than those in SIS A(COD:82.56%,TP:92.76%,NH3-N:71.08%,TN:49.24%)and SIS B(COD:81.12%,TP:92.58%,NH3-N:69.14%,TN:58.73%)under the optimal shunt ratio of 1∶3.

关 键 词：地下渗滤系统 间歇曝气 进水分流 分流比 

分 类 号：X703[环境科学与工程—环境工程]