进水氨氮浓度对SBR法处理猪场废水的影响

孟祥至; 孟昭福; 赵君楠; 朱 军; 闫晓艺; 刘 娟

文章摘要

孟祥至,孟昭福,赵君楠,朱军,闫晓艺,刘娟.进水氨氮浓度对SBR法处理猪场废水的影响[J].农业环境科学学报,2013,32(8):1656-1663.

进水氨氮浓度对SBR法处理猪场废水的影响

Effect of Influent Concentrations of Ammoniacal Nitrogen on SBR Treatment for Swine Wastewater

DOI：10.11654/jaes.2013.08.024

中文关键词: SBR 猪场废水氨氮浓度脱氮除磷 COD去除

英文关键词: SBR swine wastewater ammoniacal nitrogen concentration denitrification dephosphorization COD removal

基金项目:

作者	单位
孟祥至	西北农林科技大学理学院
孟昭福	西北农林科技大学资源与环境学院
赵君楠	西北农林科技大学理学院
朱军	明尼苏达大学生物制品及生物系统工程系
闫晓艺	西北农林科技大学理学院
刘娟	西北农林科技大学理学院

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中文摘要:

为获得SBR应对不同氨氮浓度猪场废水的适应时间及处理能力的变化情况，以低浓度废水启动SBR达稳定状态，通过逐步改变进水氨氮浓度研究SBR出水指标的变化规律。结果显示：启动至稳定状态的SBR出水氨氮、COD和磷的浓度分别为（6.37±1.70）mg·L-1、（409.90±77.00）mg·L-1、（7.29±0.13）mg·L-1，相应的去除率平均值分别为99.25%、84.18%和74.09%；进水氨氮浓度增大，SBR在前10 d整体处在冲击期，其间SBR的出水氨氮、COD和磷波动幅度较大，达稳定期后出水指标趋于稳定，且此时SBR能高效脱氮，但其降解COD和磷的能力降低。经长期高氨氮进水驯化SBR对COD的降解能力可恢复，氨氮浓度较高的进水中需要保证COD浓度以维持系统的除磷能力。

英文摘要:

After started with low concentration swine wastewater, using a sequencing batch reactor（SBR） at steady state to dispose swine wastewater, the studies on the characteristics of effluent water of SBR at different influent concentration of ammoniacal nitrogen were conducted, its purpose is to reveal the adaptive time and removal efficiency of SBR corresponding to different influent concentration of ammoniacal nitrogen. The results showed that ammoniacal nitrogen, COD and phosphorus in effluent water of SBR at steady state reached（6.37±1.70）mg·L-1,（409.90±77.00）mg·L-1 and（7.29±0.13）mg·L-1, corresponding their average removal rate were 99.25%, 84.18% and 74.09%, respectively. With an increase of influent concentration of ammoniacal nitrogen, the SBR was in shock state in first ten days and reached steady state subsequently. Ammoniacal nitrogen, COD and phosphorus in SBR changed in a wave style in shock period, while they tended to stable in steady period. The ability of denitrogenation of SBR was promoted, while the removal efficiency of COD and phosphorus were decreased at the same time in steady period. The degradable ability of COD could be recovered by a long-term domestication with high influent concentration of ammoniacal nitrogen, and the sufficient COD concentration in feeding wastewater played an important role in dephosphorization ability of SBR at high influent concentration of ammoniacal nitrogen.

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