摘要
目的:探究美人蕉和水芹对农村生活污水的处理效果。方法:采用人工浮岛模式处理农村生活污水,研究不同污水浓度及不同水力停留时间(HRT)因素条件对观赏类水生植物典型美人蕉和蔬菜类水生植物典型水芹分别对农村生活污水的处理效果。结果:美人蕉和水芹对农村生活污水的去除率与其浓度之间存在一定的相关性。在HRT为3 d时,美人蕉和水芹对不同NH 3-N浓度污水(10、25、40 mg/L)的去除率分别为21.50%、9.35%、-2.79%和91.57%、12.40%、0.48%;对不同P浓度污水(2、4、6 mg/L)的去除率分别为33.47%、21.75%、38.28%和34.36%、32.58%、20.47%;对不同TOC浓度污水(10、20、40、60、80、100 mg/L)的平均去除率分别为21.79%、21.44%;两种植物在不同HRT条件下对农村生活污水的去除率,与HRT的长短具有一定的相关性。在不同HRT(3、4、5 d)的条件下,两种植物处理NH 3-N浓度为25 mg/L、P浓度为6 mg/L的生活污水,美人蕉对NH 3-N、P的去除率分别为8.38%、8.68%、52.24%和15.08%、42.50%、65.33%;水芹对NH 3-N、P的去除率分别为23.64%、56.42%、42.46%和33.25%、29.42%、44.92%。结论:观赏类水生植物典型美人蕉和蔬菜类水生植物水芹,对农村生活污水的处理效果较好,污水浓度、HRT对这两种植物的处理效果具有一定的影响。
Objective:To explore the effects of Canna indica L.(canna)and Oenanthe javanica(water celery)on the treatment of rural domestic sewage.Methods:The effects of different sewage concentration and different hydraulic retention time on the treatment effect of ornamental aquatic plants typical canna and vegetable aquatic plants typical water celery on rural domestic sewage under artificial floating island model were studied.Results:There was a certain correlation between the removal rate of rural domestic sewage by canna and water celery and the concentration of rural domestic sewage.When HRT was 3 days,the removal rates of sewage with different NH 3-N concentrations(10,25,40 mg/L)by the two plants were 21.50%,9.35%,-2.79%and 91.57%,12.40%,0.48%,respectively;the removal rates of sewage with different P concentrations(2,4,6 mg/L)were 33.47%,21.75%,38.28%and 34.36%,32.58%,20.47%,respectively;the average removal rates of sewage with different TOC concentrations(10,20,40,60,80,100 mg/L)were 21.79%and 21.44%,respectively.The removal rate of rural sewage treated by two plants under different HRT conditions was correlated with the length of HRT.Under different HRT(3,4,5 d)conditions,the two plants treated rural domestic sewage with NH 3-N concentration of 25 mg/L and P concentration of 6 mg/L,the removal rates of NH 3-N and P by canna were 8.38%,8.68%,52.24%and 15.08%,42.50%,65.33%,respectively;the removal rates of NH 3-N and P by water celery were 23.64%,56.42%,42.46%and 33.25%,29.42%,44.92%,respectively.Conclusion:Ornamental aquatic plants typical Canna indica L.and vegetable aquatic plants typical Oenanthe javanica have good treatment effect on rural domestic sewage,and sewage concentration and HRT have certain influence on the treatment effect of these two plants.
作者
杨秀平
邹海明
YANG Xiuping;ZOU Haiming(College of Resource and Environment,Anhui Science and Technology University,Fengyang 233100,China)
出处
《安徽科技学院学报》
2019年第5期58-64,共7页
Journal of Anhui Science and Technology University
基金
安徽省高校优秀青年骨干人才国内访问研修项目(gxgnfx201902)
滁州市科技计划项目(2019ZN004)
关键词
水生植物
农村生活污水
影响因素
Aquatic plants
Rural domestic sewag
Influencing factors
