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5413、5217、2614 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%。
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 5413,5217 and 2614 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 lecular organic matter in the liquor brewing wastewater.The average removal rates of COD were 87.5%,82.1% and 92.7%,ammonia nitrogen was 89.4%,89.2% and 96.4%,total nitrogen was 93.1%,93.0%and 95.6%,respectively.However,the average removal rates of total phosphorus were 96.8%,96.9% and 96.2%,respectively.White wine brewing wastewater mainly affected the granulation by influencing the extracellular polymer content and the proportion of compact polysaccharides.The extracellular polymer content was increased from the initial 44.31 mg/g to 87.06,103.69 and 88.34 mg/g,respectively.The compact polysaccharides were elevated by 2.07,1.80,and 1.19 times,respectively.The activity recovery of granular sludge after 24 days of shutdown showed that R1 sludge settlement performance and pollutant removal efficiency were well recovered,while total phosphorus removal was only 66.5% and 75.4% after R2 and R3 recovery.
作者
宁欣强
胡嘉伦
彭金湄
黄渊铭
彭微
唐棠
郑佳
罗惠波
NING Xinqiang;HU Jialun;PENG Jinmei;HUANG Yuanming;PENG Wei;TANG Tang;ZHENG Jia;LUO Huibo(Biological Engineering,Sichuan University of Science&Engineering,Yibin 644000,China;Liquor Making Biotechnology and Application Key Laboratory of Sichuan Province,Yibin 644000,China;Yibin Wuliangye Co.,Ltd.,Yibin 644000,China)
出处
《工业水处理》
CAS
CSCD
北大核心
2024年第12期175-183,共9页
Industrial Water Treatment
基金
中国轻工业部浓香型白酒固态发酵重点实验室开放基金项目(2022JJ009)
四川轻化工大学研究生创新基金项目(Y2022069,Y2023229)。
关键词
好氧颗粒污泥
白酒酿造废水
颗粒化
胞外聚合物
aerobic granular sludge
whire wine brewing wastewater
granularity
extracellular polymeric substances
