Application of using surface constructed wetland for removal of chemical oxygen demand and ammonium in polluted river water

Haiming Wu Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, P.R. China Phone: Tel./ Fax: +86 531 88363015

Weijiang Li School of Environmental and Municipal Engineering, Qingdao Technological University, Qingdao, 266033, P.R. China

Jian Zhang Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, P.R. China Phone: Tel./ Fax: +86 531 88363015Correspondence[email protected]

Cong Li Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, P.R. China Phone: Tel./ Fax: +86 531 88363015

Jinyong Zhang Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, P.R. China Phone: Tel./ Fax: +86 531 88363015

Huijun Xie Environment Research Institute, Shandong University, Jinan, 250100, P.R. China

Abstract

River water was mostly polluted in northern China in the past decades and the major contaminants were organic matter and ammonia. In this study the performance of the pilot-scale and full-scale surface constructed wetlands for removing COD (chemical oxygen demand) and ammonium from polluted river water was evaluated. Results showed that the effluent COD and NH₄ ⁺-N concentrations in the pilot scale wetland systems were 10.72–19.34 mg l⁻¹ and 0.18–0.90 mg l⁻¹, respectively, which met Grade-III (COD 20 mg l⁻¹, NH₄ ⁺-N 1 mg l⁻¹) of national surface water standards in China. The maximal COD and NH₄ ⁺-N removal efficiency was 96.18% and 99.78%. COD and NH₄ ⁺-N removal in spring and summer were better than that in fall and winter based on the k–C^∗ model. Combined with research results of the two-year full-scale study, it indicated that the surface wetland system was a promising technology for treating polluted river water to meet the requirement of Grade-III water quality in northern China.

Keywords:

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

Application of using surface constructed wetland for removal of chemical oxygen demand and ammonium in polluted river water

Information for

Open access

Opportunities

Help and information

Application of using surface constructed wetland for removal of chemical oxygen demand and ammonium in polluted river water

Abstract

Reprints and Corporate Permissions

Academic Permissions

Related research

To cite this article:

Download citation

Information for

Open access

Opportunities

Help and information

Keep up to date

Your download is now in progress and you may close this window

Login or register to access this feature