摘要：

使用白酒固态酿造过程中黄水（R1）、底锅水（R2）为碳源，以葡萄糖及乙酸钠（R3）为对照，探究了白酒酿造废水作为碳源对好氧颗粒污泥颗粒化过程的影响。结果表明，系统污泥出现颗粒时间、颗粒粒径：R1为10 d、2~3 mm，R2为7 d、3~4 mm，优于R3的20 d、0.4~0.6 mm。在污泥浓度和沉降性方面，R1、R2均优于R3，其中污泥质量浓度分别为5 413、5 217、2 614 mg/L，污泥沉降指数分别为40.85、39.66、53.56 mL/g。各实验组运行效能表明：由于白酒酿造废水中含有大分子有机物，导致对照组的COD、氨氮、总氮平均去除率优于实验组（p<0.05），其中R1、R2和R3系统的COD平均去除率分别为87.5%、82.1%和92.7%，氨氮平均去除率为89.4%、89.2%和96.4%，总氮平均去除率为93.1%、93.0%和95.6%，但在总磷平均去除率方面较为接近，分别为96.8%、96.9%和96.2%。白酒酿造废水主要通过影响胞外聚合物（EPS）和紧密型多糖（TB-PS）的比例来影响颗粒化，EPS由初始的44.31 mg/g分别增加至87.06、103.69、88.34 mg/g；TB-PS分别提升了2.07、1.80、1.19倍。各反应器停运24 d后对颗粒污泥系统进行重新启动，R1污泥沉降性能和污染物去除效率均得到良好恢复，而R2、R3恢复后，总磷去除率仅为66.5%、75.4%。

关键词: 好氧颗粒污泥, 白酒酿造废水, 颗粒化, 胞外聚合物

Abstract:

Huang shui fluid(R1) and steamer bottom water(R2) were used as carbon sources, and sodium glucose acetate(R3) was used as a control to investigate the effect of white wine brewing wastewater as a carbon source on the granulation process of aerobic granular sludge. The results showed that the emergence time of particles and particle size were 10 d and 2-3 mm for R1 and 7 d and 3-4 mm for R2,respectively, which were better than 20 d and 0.4-0.6 mm for R3. In terms of sludge concentration and settleability, R1 and R2 were better than R3, where the sludge concentration was 5 413, 5 217 and 2 614 mg/L, and the sludge settling index were 40.85, 39.66 and 53.56 mL/g, respectively. The operation efficiency of each group showed that the average removal rates of COD, ammonia nitrogen, and total nitrogen in the control group were better than those in the experimental group(p<0.05) due to the macromo

Key words: aerobic granular sludge, whire wine brewing wastewater, granularity, extracellular polymeric substances

中图分类号: 

• X703.1