Influence mechanism of pollutant loading on the performance of horizontal flow constructed wetlands for wastewater treatment

doi:10.11894/iwt.2019-0003

Industrial Water Treatment ›› 2020, Vol. 40 ›› Issue (6): 48-50. doi: 10.11894/iwt.2019-0003

• Research and Experiment • Previous Articles Next Articles

Influence mechanism of pollutant loading on the performance of horizontal flow constructed wetlands for wastewater treatment

Shibo Yang¹(),Yucong Zheng¹,Dzakpasu Mawuli¹,Xiaochang Wang¹,Wendong Wang²

1. Shaanxi Key Laboratory of Environmental Engineering, Key Laboratory of Northwest Water Resources, Environment and Ecology, Ministry of Education, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
2. School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China

Received:2020-03-20 Online:2020-06-20 Published:2020-06-20

污染物负荷对水平流人工湿地净化效果的影响机制

杨世博¹(),郑于聪¹,MawuliDzakpasu¹,王晓昌¹,王文东²

1. 西安建筑科技大学环境与市政工程学院, 陕西省环境工程重点实验室, 西北水资源与环境生态教育部重点实验室, 陕西西安 710055
2. 西安交通大学人居环境与建筑工程学院, 陕西西安 710049

作者简介:杨世博(1993—), 硕士研究生。电话:13279365923, E-mail:shibomails@163.com
基金资助:
陕西省教育厅重点实验室科研计划项目(17JS078);陕西省重大科技成果转化引导专项项目(2016KTCG01-17)

Abstract

Abstract:

In order to improve the applicability of horizontal subsurface flow constructed wetlands (HFCWs) in rural sewage treatment, the relationship between wastewater purification efficiencies of HFCWs and pollutant loading were studied through small-scale experiments. The results showed that the unit removal amount of TP, COD and NH₄⁺-N in HFCWs could be increased linearly with the increase of input loadings, but the unit removal amount of TN didn't be increased linearly. The results of redundancy analysis showed that the removal rate of TN in HFCWs was negatively correlated with NH₄⁺-N, NO₃^--N and TN input loadings, while positively correlated with C/N. The unit removal amount of TN in HFCWs was positively correlated with NH₄⁺-N, NO₃^--N and TN input loadings, while negatively correlated with TP input loading and C/N.

Key words: horizontal flow constructed wetlands, decentralized treatment, pollutants loading

摘要：

为了提高水平流人工湿地在乡村污水处理中的适用性，通过小试实验系统研究了污染物负荷与人工湿地污水净化效率间的关系。结果表明：人工湿地对污水中TP、COD和NH₄⁺-N的单位去除量能够随着进水负荷的增加而呈线性增加，对TN的去除则未呈线性增加。通过冗余分析，得出人工湿地对TN的去除率与进水NH₄⁺-N负荷、NO₃^--N负荷、TN负荷呈负相关，与C/N呈正相关；对TN的单位去除量与进水NH₄⁺-N负荷、NO₃^--N负荷和TN负荷呈正相关，而与TP负荷和C/N呈负相关。

关键词: 水平流人工湿地, 分散式处理, 污染负荷

CLC Number:

X703

Shibo Yang,Yucong Zheng,Dzakpasu Mawuli,Xiaochang Wang,Wendong Wang. Influence mechanism of pollutant loading on the performance of horizontal flow constructed wetlands for wastewater treatment[J]. Industrial Water Treatment, 2020, 40(6): 48-50.

杨世博,郑于聪,MawuliDzakpasu,王晓昌,王文东. 污染物负荷对水平流人工湿地净化效果的影响机制[J]. 工业水处理, 2020, 40(6): 48-50.

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URL: https://www.iwt.cn/EN/10.11894/iwt.2019-0003

https://www.iwt.cn/EN/Y2020/V40/I6/48

Figures/Tables 3

References 8

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污染物指标	标准模拟质量浓度/（mg·L^-1）	单因素指标改变后质量浓度/（mg·L^-1）
TP	8	2、4、8、12
COD	150	50、150、300
NH₄⁺-N	30	5、10、20、30、40
NO₃^--N	8	2.5、5、10、20、30

污染物指标	标准模拟质量浓度/（mg·L^-1）	单因素指标改变后质量浓度/（mg·L^-1）
TP	8	2、4、8、12
COD	150	50、150、300
NH₄⁺-N	30	5、10、20、30、40
NO₃^--N	8	2.5、5、10、20、30

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