A Study on the Start-up Period of Underground Infiltration System Treating Rural Domestic Sewage

Ming Fen Niu; Jian Wei; Jian Ma; Xin Chen

doi:10.4028/www.scientific.net/AMR.774-776.552

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 774-776A Study on the Start-up Period of Underground...

A Study on the Start-up Period of Underground Infiltration System Treating Rural Domestic Sewage

Abstract:

This paper studied the removal effect of domestic sewage nitrogen and phosphorus during the start-up period of underground infiltration system. The experiment is conducted under the conditions of influent temperature 9~10°C, hydraulic loading 0.04m³·m^-2·d^-1, COD concentration 112.31~143.49mg / L, NH₄⁺-N 20.93~27.26mg / L and TP 2.12~2.86mg / L. The experimental results showed the removal rate of COD, NH₄⁺-N and TP was 80%, 98% and 95% respectively. In the start-up period, TN removal was not obviously for 34% removal rate. After treated the effluent nitrate nitrogen concentration was high, showing during the start-up period the nitrification was better than the denitrification. Lacking of carbon source and low temperature may account for this. To improve the conditions of the start-up period, promoting denitrification was the key to improve nitrogen removal rate by underground infiltration system.

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Periodical:

Advanced Materials Research (Volumes 774-776)

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552-555

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.774-776.552

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Online since:

September 2013

Authors:

Ming Fen Niu, Jian Wei, Jian Ma, Xin Chen

Keywords:

Nitrogen and Phosphorus Removal, Rural Domestic Sewage, Start-Up Period, Underground Infiltration System

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