| 酒精废水消化液生物硝化和脱氮试验 |
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| 引用本文： | 杨健,周小波. 酒精废水消化液生物硝化和脱氮试验[J]. 环境工程, 2006, 24(1): 27-30. DOI: 10.13205/j.hjgc.200601007 |
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| 作者姓名： | 杨健 周小波 |
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| 作者单位： | 同济大学环境科学与工程学院,上海,200092;同济大学环境科学与工程学院,上海,200092 |
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| 摘 要： | 酒精糟液厌氧消化液CODCr浓度为3500～4300mgL,BOD5浓度为1500～2100mgL,TN浓度为400～700mgL,NH3N浓度为300～600mgL。采用SBR反应器对该消化液进行生物脱氮试验,对反应器的有机负荷、氨氮负荷、脱氮效果、脱氮过程中氮形态的变化以及碳源提供等进行了研究分析。试验结果表明,当消化液碳源充足,SBR充水比λ=0.35,缺氧时间3h以及BOD5污泥负荷0.26～0.32kgkg·d条件下,SBR处理出水CODCr598～632mgL,BOD560～100mgL,氨氮6～9mgL,总氮200～216mgL,总氮去除率为60%左右。该处理系统中缺氧段反应时间仅为3h,却承担70%～75%的CODCr总去除负荷,显著提高了该系统的有机负荷和氨氮负荷。在消化液碳源不足的条件下,可投加乙酸钠作为生物脱氮的外碳源,投加量宜为500mgL。
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| 关 键 词： | 酒精废水消化液 SBR 生物硝化和脱氮 缺氧 好氧 碳源 |
| 收稿时间： | 2005-04-19 |
| 修稿时间： | 2005-04-19 |
EXPERIMENT ON BIOLOGICAL NITRIFICATION AND DENITRIFICATION OF DIGESTION LIQUID OF ALCOHOL WASTEWATER |
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| Yang Jian,Zhou Xiaobo. EXPERIMENT ON BIOLOGICAL NITRIFICATION AND DENITRIFICATION OF DIGESTION LIQUID OF ALCOHOL WASTEWATER[J]. Environmental Engineering, 2006, 24(1): 27-30. DOI: 10.13205/j.hjgc.200601007 |
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| Authors: | Yang Jian Zhou Xiaobo |
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| Affiliation: | Yang Jian Zhou Xiaobo |
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| Abstract: | The digester liquid of alcohol wastewater was identified at COD_ Cr, BOD_5, TN and NH_3-N concentrations of 3 500～ 4 300 mg/L , 1 500～ 2 100 mg/L, 400～700 mg/L and 300～600 mg/L respectively.The objective of this experiment was to investigate the nitrification and denitrification by SBR with specific emphasis on the main operational parameters.The results demonstrated that when the anoxic time was 3 h, the sludge loading 0.26～0.32 kg BOD_5/kg MLSS·d and carbon source enough, the effluent concentrations were 598～632 mg COD_ Cr/L, 60～ 100 mg BOD_5/L, 6～9 mg NH_3-N/L, and 200～216 mg TN/L with about 60% removal efficiency respectively.In spite of the short anoxic time, the system removed by 70%～75% of total COD_ Cr, which improved the organic and ammonia nitrogen loading exceptionally.Sodium acetate can be taken as the external carbon source of biological denitrification with an appropriate dosage of 500 mg/L COD_ Cr under scarce carbon source condition. |
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| Keywords: | digester liquid of alcohol wastewater SBR biological nitrification & denitrification anoxic aerobic and carbon source |
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