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| DOI：10.13522/j.cnki.ggps.2017.11.008 |
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| Removal of Nitrogen from Wastewater Using Hybrid BAF |
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YANG Yuxuan, YIN Honggui, TANG Zixia, WANG Yinmei, CAO Wenping
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School of Environmental Engineering, Xuzhou Institute of Technology, Xuzhou 221111, China
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| Abstract: |
| The improved efficacy of hybrid BAF with filamentous bamboo and palygorskiteceramistite (HBAF-FBPC) in removing nitrogen from wastewater was compared with the hybrid biological aerating filter with palygorskiteceramistite (HBAF-PC). The experiment was conducted under continuous flow condition and the average hydraulic retention time was eight hours. The results showed thatthe removal rate of total nitrogen by HBAF-FBPC and HBAF-PC was 70.2%～95.7% and 32.5%～67.1%, respectively. The effluent nitrateconcentration from the HBAF-PC and HBAF-FBPC was 15.2～48.8 mg/L and 14.5 mg/L respectively, and compared with HBAF-PC, HBAF-FBPC was more efficient in removing nitrite. In addition, the HBAF-FBPC boosted the growth of Canna and microorganisms due to its filamentous bamboo. |
| Key words: carriers; biological aerated filter; palygorskiteceramistite; filamentous bamboo |
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