Paper Title:
Purification Effect of Constructed Wetland on TN and TP Removal from Eutrophic Wastewater
  Abstract

Acorus gramineus Soland., Canna chineresisw, Calla palustris., Rhododendron simsii, Aspidistra elatior and Chamaedorea elegans, were rooted in 0.3m media. The media were composed of 0.15m gravel and 0.15m mixture of sand and soil, and the volume proportion of sand and soil was 2:1. The plants were grown in six 0.5x1.0m concrete ponds that were filled with a further 0.3m of effluent from an oxidation ditch operated in a sequential batch mode, treating eutrophic wastewater from a university. The water was sampled daily for total N and total P and retained for seven days. A control pond devoid of plants was not included. The levels of total P and total N declined to a maximum of 60-77.6% of initial for total P and 86.7-98% for total N within four days. Since levels stayed constant for total N but rose for total P, four day retention would minimize amounts of these nutrients leaving the ponds. The conclusion can be gotten through analysis that the plant’s absorb isn’t the main cause of total N and total P remove for constructed wetland, but there are some effect by the plant adaptability, so in the design process of eutrophic wastewater treatment, plants could be chosen on their aesthetic merits to enhance the wetland system’s sight effect. And the hydraulic residence is better inside 4 days in the surface constructed wetland design process. The mechanisms involved in nutrient decline were not investigated.

  Info
Periodical
Advanced Materials Research (Volumes 356-360)
Chapter
Chapter 14: Environmental Protection
Edited by
Hexing Li, Qunjie Xu and Daquan Zhang
Pages
2638-2642
DOI
10.4028/www.scientific.net/AMR.356-360.2638
Citation
J. L. Kang, "Purification Effect of Constructed Wetland on TN and TP Removal from Eutrophic Wastewater", Advanced Materials Research, Vols. 356-360, pp. 2638-2642, 2012
Online since
October 2011
Authors
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Chen Xi Yang, Ju Rui Yang, Hui Li
Chapter 7: Pollution Control (Air, Water, Solid)
Abstract:A surface-flow wetland and a subsurface-flow wetland respectively were constructed at the entrance of Dian Lake in Yunnan Province. Six...
1409
Authors: Li Song, Gui Fang Jiang, Zhi Gang Xie, Qing Li, Wu Quan Ding
Chapter 12: Forest Engineering, Plant Protection and Land Resources
Abstract:In this paper, artificial wetland systems, aeration tanks, rapid filter combined biological wastewater treatment process facilities for...
2654