低温条件下不同配置浮床净化太湖水体效果  

Effect of Floating Bed with Different Configurations on Taihu Lake Water Purification under Low Temperature

作　　者：宋壮壮 施皓轩 孔赟 张俊翔 沙明卓 SONG Zhuangzhuang;SHI Haoxuan;KONG Yun;ZHANG Junxiang;SHA Mingzhuo(Municipal Planning and Engineering Design Institute of Jiangsu Provincial Planning and Design Group,Nanjing 210036,China;College of Urban Construction,Nanjing Tech University,Nanjing 210000,China;Kunshan Water Affairs Bureau,Suzhou 215301,China;Shenyang Water Supply and Drainage Survey and Design Institute Co.,Ltd.,Shenyang 110023,China)

机构地区：[1]江苏省规划设计集团市政规划与工程设计院,江苏南京210036 [2]南京工业大学城市建设学院,江苏南京210000 [3]昆山市水务局,江苏苏州215301 [4]沈阳市给排水勘察设计研究院有限公司,辽宁沈阳110023

出　　处：《净水技术》2024年第12期171-179,共9页Water Purification Technology

摘　　要：文章研究了低温条件下不同生物配置的水生植物浮床、水生动物浮床、水生植物介质浮床、水生动物介质浮床和组合生态浮床对太湖水体氮、磷等污染物的去除规律,结果表明,组合生态浮床对各类污染物的综合去除效果最好。低温下植物对溶解态氮有较好的去除效果;人工介质较强的微生物富集作用使得其在低温下仍表现出一定的硝化反硝化作用。三角帆蚌通过滤食作用促进了颗粒性有机氮可溶化和无机化,有利于氮被植物和微生物利用,提高了组合生态浮床(IEFB)TN的去除效果。低温下植物单元的吸收和人工介质单元硝化反硝化作用是组合生态浮床除氮的主要原因。对TP研究表明,低温下三角帆蚌的滤食、人工介质的吸附拦截和微生物的同化作用是组合生态浮床除磷主要原因。考察了IEFB对微量有机物的去除,结果表明,IEFB 6 d微量有机物总峰面积下降了73.87%,是空白对照浮床的1.47倍。对三环[5.2.1.0(2,6)]癸-3-烯-10-酮、邻苯二甲酸二乙酯、邻苯二甲酸丁基酯2-乙基己基酯、氯芬磷6 d峰面积去除率达46.06%、36.45%、89.87%、48.25%,是空白对照浮床去除率的2.97、2.51、1.64、6.37倍。The removal rules of nitrogen and phosphorus pollutants in Taihu Lake water under low temperature by different biological configurations of aquatic plant floating bed,aquatic animal floating bed,aquatic plant media floating bed,aquatic animal media floating bed and combined ecological floating bed were studied.The results indicated that the combined ecological floating bed had the best comprehensive removal effect on various pollutants.The plants had better removal effect on dissolved nitrogen at low temperature.The strong microbial enrichment of the artificial medium made it still show certain nitrification and denitrification under low temperature.Hyriopsis cumingii promotes the solubility and inorganic of particulate organic nitrogen through filtration,which was beneficial to the utilization of plants and microorganisms,and improved the removal effect of TN in integrated ecological floating bed(IEFB).The absorption of plant unit and nitrification and denitrification of artificial medium unit at low temperature were the main reasons for nitrogen removal in IEFB.The study of TP showed that the main reasons for phosphorus removal in IEFB at low temperature were the filtration of Hyriopsis cumingii,the adsorption and interception of artificial media and the assimilation of microorganisms.The removal of trace organic substances by IEFB was investigated.The total peak area of trace organic matters in in IEFB decreased by 73.87%in 6 days,1.47 times that of the blank control floating bed.The 6-day peak area removal rates of tricyclic[5.2.1.0(2,6)]dec-3-en-10-ketone,diethyl phthalate,butyl phthalate 2-ethylhexyl phthalate,and clofenphos reached 46.06%,36.45%,89.87%,and 48.25%,2.97 times,2.51 times,1.64 times,and 6.37 times of the blank control floating bed removal rate.

关 键 词：生物量配置 生态浮床 低温 太湖 污染物去除 

分 类 号：X52[环境科学与工程—环境工程]