【摘要】 针对目前传统生物脱氮工艺存在的问题 ,结合国内外在该方向的研究现状 ,以实际豆制品废水为研究对象 ,控制反应器内混合液温度在 31± 0 .5℃的条件下 ,实现了短程硝化 反硝化生物脱氮工艺 ,NO-2 N NOx N的比率始终维持在90 %以上。并在此试验基础上 ,考察了曝气时间对反应器内氮形态变化的影响及系统对进水COD和NH3 N浓度的抗冲击负荷能力。结果显示 ,曝气时间对硝化效果影响较大 ,同时 ,本工艺具有较强的抗冲击负荷能力。更多还原

【Abstract】 The shortcut nitrification denitrification has been performed efficiently and steadily in soybean wastewater treatment by controlling temperature, and nitrosation rate (NO - 2 N/NO x N) is more than 90%. The new technology overcomes some problems in the traditional biological nitrogen removal. The effect of aeration time on nitrification and the resist impact load capability of the technology were studied, too. The results showed that aeration time is a key element in the process of nitrification, and the technology possesses stronger resist impact load capability.更多还原