Experiment on the Treatment of the Rural Wastewater by the Paddy Wetland System

Song Li; Shuang Hua Liu; Ying Xu Chen

doi:10.4028/www.scientific.net/AMR.347-353.2103

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 347-353Experiment on the Treatment of the Rural...

Experiment on the Treatment of the Rural Wastewater by the Paddy Wetland System

Abstract:

A field experiment was conducted to remove the potential eutrophication effect of N and P from rural wastewater (RW) during the whole rice growing season of 2010. Commercial fertilizer and RW were applied to furnish 40 kg P ha-1except CK. Results showed TN concentration of the floodwater in the paddy wetland system decreased quickly after transplanting, rosed significantly (P ≤ 0.05) after two N topdressings, and then decreased gradually as the following sequences: SW > GW > DW > BW > CK. Total P (TP) concentration had significantly declined after P application, from October 15 there were no significant increases in TP concentration in the floodwater. Meanwhile, the yield for CK was significantly less (P ≤0.05) than SW, GW, DW, and BW, with the yield of BW significantly greater (P ≤ 0.05) than other treatments. It is feasible to remove N and P from RW by the paddy wetland system and can be widely used to improve the yield of rice.

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Periodical:

Advanced Materials Research (Volumes 347-353)

Pages:

2103-2106

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.347-353.2103

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Online since:

October 2011

Authors:

Song Li, Shuang Hua Liu, Ying Xu Chen

Keywords:

Nitrogen, Paddy Wetland System, Phosphorus, Rural Wastewater

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