[1]巢波,张皓驰,陈太飞,等.进水方式对OAO蔬菜潜流湿地净化效果的影响[J].中国给水排水,2024,40(1):104-109.
　CHAOBo,ZHANGHao-chi,CHENTai-fei,et al.Effect of Feeding Strategy on Purifying Performance of OAO Vegetable Subsurface-flow Wetland[J].China Water & Wastewater,2024,40(1):104-109.
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进水方式对OAO蔬菜潜流湿地净化效果的影响

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期数: 2024年第1期 页码: 104-109 栏目: 出版日期: 2024-01-01
Title:
Effect of Feeding Strategy on Purifying Performance of OAO Vegetable Subsurface-flow Wetland
作者:
巢波， 张皓驰， 陈太飞， 李先宁
（东南大学 能源与环境学院，江苏 南京 210096）
Author(s):
CHAO　Bo， ZHANG　Hao-chi， CHEN　Tai-fei， LI　Xian-ning
（School of Energy and Environment， Southeast University， Nanjing 210096， China）
关键词:
OAO蔬菜潜流湿地;  村落无序排放污水;  脱氮;  三点进水;  两点进水
Keywords:
OAO vegetable subsurface-flow wetland;  randomly-discharged sewage from village;  denitrification;  three?point feeding;  two-point feeding
摘要:
为提高好氧/厌氧/好氧（OAO）蔬菜潜流湿地对总氮的去除效果，同时维持其对有机物的高去除率，在野外条件下采用人工模拟的当地村落无序排放污水，分析不同进水方式（首端进水、三点进水和两点进水）对湿地去除污染物效果的影响。结果表明，相较于首端进水，三点进水方式下湿地对总氮的去除效果有所提高，但对COD和总磷去除率的提升效果不显著，最佳脱氮进水流量比为1∶2∶1，脱氮效果提升13.56%，氨氮、硝态氮和总氮去除率分别达到75.11%、95.07%和79.86%，相应出水平均浓度分别为0.65、0.53和1.32 mg/L。采用两点进水方式时，湿地脱氮除磷效率及COD去除率均高于三点进水和首端进水，最佳脱氮进水流量比为1∶3，氨氮、硝态氮和总氮去除率分别为82.10%、97.71%和85.59%，相应出水平均浓度分别为0.92、0.09和0.93 mg/L。
Abstract:
This paper analyzed the effects of different feeding strategies (one-point feeding, two-point feeding and three-point feeding) on the performance of wetlands for the removal of pollutant in simulated randomly-discharged sewage from a village under field conditions, so as to improve the total nitrogen removal performance of aerobic/anaerobic/aerobic (OAO) vegetable subsurface-flow wetland and maintain its high removal efficiency of organic matter. Compared with one-point feeding strategy, the removal efficiency of total nitrogen in the wetland with three-point feeding strategy was improved, whereas the removal efficiencies of COD and total phosphorus were not significantly improved. Under the optimal flow distribution ratio for nitrogen removal (1∶2∶1), the removal efficiency of total nitrogen increased by 13.56%, the removal rates of ammonia nitrogen, nitrate nitrogen and total nitrogen reached 75.11%, 95.07% and 79.86%, respectively, and the corresponding average concentrations in effluent were 0.65 mg/L, 0.53 mg/L and 1.32 mg/L, respectively. The nitrogen, phosphorus and COD removal rate of the wetland with two-point feeding strategy were higher than those of the wetland with one-point feeding and three-point feeding strategies. The optimal flow distribution ratio for nitrogen removal was 1∶3, the removal rates of ammonia nitrogen, nitrate nitrogen and total nitrogen were 82.10%, 97.71% and 85.59%, and the corresponding average concentrations in effluent were 0.92 mg/L, 0.09 mg/L and 0.93 mg/L, respectively.
更新日期/Last Update: 2024-01-01