Experimental Study on Nitrogen Removal of Domestic Sewage Using Two-Stages Soil Aquifer Treatment System with Pre-Denitrification Process

Geng Tan; Hao Dong Zhang; Yu Ting Wang; Xiao Wei Duan

doi:10.4028/www.scientific.net/AMR.1065-1069.3049

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1065-1069Experimental Study on Nitrogen Removal of Domestic...

Experimental Study on Nitrogen Removal of Domestic Sewage Using Two-Stages Soil Aquifer Treatment System with Pre-Denitrification Process

Abstract:

For unstable high water ammonia shortcomings of soil infiltration system for rural sewage, one kind of new soil infiltration systems-two-stages soil aquifer treatment (SAT) system with pre-denitrification process was designed. The results show that when the hydraulic loading is within 0.06-0.08 m³/(m²·d), the effluent COD_Cr and NH₄⁺-N concentration reach GB18918-2002 level A standard, the removal rate is 91%-94% for COD_Cr and 95%-98% for NH₄⁺-N. The TN concentration is below 20 mg/L, meeting GB18918-2002 level B standard, and the removal rate is 71%-75%. The TN removal is dramatically affected by reflux ratio.

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Periodical:

Advanced Materials Research (Volumes 1065-1069)

Pages:

3049-3054

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1065-1069.3049

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Online since:

December 2014

Authors:

Geng Tan, Hao Dong Zhang*, Yu Ting Wang, Xiao Wei Duan

Keywords:

Hydraulic Loading, Nitrogen Removal Performance, Pre-Denitrification, Reflux Ratio, Soil Aquifer Treatment

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* - Corresponding Author

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