https://scholars.lib.ntu.edu.tw/handle/123456789/408335
Title: | Two-stage soil infiltration treatment system for treating ammonium wastewaters of low COD/TN ratios | Authors: | Lei Z. Wu T. Zhang Y. Liu X. Wan C. Lee D.-J. Tay J.-H. |
Keywords: | Ammonium wastewater; Denitrification; Low COD/TN ratio; Nitrification; Soil infiltration treatment | Issue Date: | 2013 | Journal Volume: | 128 | Start page/Pages: | 774-778 | Source: | Bioresource Technology | Abstract: | Soil infiltration treatment (SIT) is ineffective to treat ammonium wastewaters of total nitrogen (TN)>100mgl-1. This study applied a novel two-stage SIT process for effective TN removal from wastewaters of TN>100mgl-1 and of chemical oxygen demand (COD)/TN ratio of 3.2-8.6. The wastewater was first fed into the soil column (stage 1) at hydraulic loading rate (HLR) of 0.06m3m-2d-1 for COD removal and total phosphorus (TP) immobilization. Then the effluent from stage 1 was fed individually into four soil columns (stage 2) at 0.02m3m-2d-1 of HLR with different proportions of raw wastewater as additional carbon source. Over the one-year field test, balanced nitrification and denitrification in the two-stage SIT revealed excellent TN removal (>90%) from the tested wastewaters. © 2012 Elsevier Ltd. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/408335 | ISSN: | 09608524 | DOI: | 10.1016/j.biortech.2012.10.113 | SDG/Keyword: | Ammonium compounds; Chemical oxygen demand; Denitrification; Effluents; Infiltration; Nitrification; Soils; Carbon source; COD removal; Field test; Hydraulic loading rates; Low COD/TN ratio; Nitrification and denitrification; Raw wastewaters; Soil column; Soil infiltration; Total nitrogen; Total phosphorus; Treatment systems; Wastewater treatment; ammonia; nitrogen; organic matter; phosphorus; ammonium; chemical oxygen demand; denitrification; immobilization; infiltration; phosphorus; pollutant removal; sewage treatment; soil column; article; carbon source; chemical oxygen demand; denitrification; hydraulic conductivity; nitrification; priority journal; soil infiltration; soil infiltration treatment; soil property; temperature; waste water management |
Appears in Collections: | 化學工程學系 |
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