| 混合碳源的好氧颗粒污泥培养及其除污效果分析 |
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| 引用本文： | 刘前进, 刘立凡. 混合碳源的好氧颗粒污泥培养及其除污效果分析[J]. 环境工程学报, 2021, 15(3): 962-971. doi: 10.12030/j.cjee.202006106 |
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| 作者姓名： | 刘前进 刘立凡 |
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| 作者单位： | 广东工业大学土木与交通工程学院，广州 510006 |
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| 摘 要： | 以葡萄糖和乙酸钠为混合碳源,采用调控耗氧有机污染物浓度(以COD计)、表面上升气速和污泥沉降时间的方法培养好氧颗粒污泥,对污泥颗粒化过程中的污泥特性变化和污染物去除效果进行研究.结果 表明:第110天,好氧颗粒污泥培养成功,颗粒粒径主要分布在1.43～2.26 mm,污泥容积指数(SVI30)为28 mL·g-1,沉降...
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| 关 键 词： | 好氧颗粒污泥 除污效果 特性 颗粒化 混合碳源 |
| 收稿时间： | 2020-06-17 |
Cultivation of aerobic granular sludge with mixed carbon source and its decontamination effect analysis |
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| LIU Qianjin, LIU Lifan. Cultivation of aerobic granular sludge with mixed carbon source and its decontamination effect analysis[J]. Chinese Journal of Environmental Engineering, 2021, 15(3): 962-971. doi: 10.12030/j.cjee.202006106 |
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| Authors: | LIU Qianjin LIU Lifan |
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| Affiliation: | School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China |
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| Abstract: | Using glucose and sodium acetate as mixed carbon source, aerobic granular sludge was cultivated by adjusting the concentration of aerobic organic pollutants (calculated by COD), surface rising gas velocity and sludge settling time. The changes of sludge characteristics and pollutant removal effect during the sludge granulation process were studied. The results showed that the aerobic granular sludge was successfully cultivated on the 110th day, its particle size was mainly distributed in 1.43~2.26 mm, the sludge volume index (SVI30) was 28 mL·g−1, the settling speed was 94 m·h−1, and the sludge volatile component ratio (MLVSS/MLSS) was 0.72. The change of extracellular polymeric substances (EPS) content indicated that during the process of sludge granulation, the content of polysaccharides (PS) did not obviously change, which basically maintained at 25 mg·g−1, but the content of protein (PN) significantly increased from 13.98 mg·g−1 to 41.86 mg·g−1, indicating that PN played an important role in the formation of aerobic granular sludge. The removal rates of COD, TN and TP by aerobic granular sludge were 95%, 80% and 70%, respectively, which had good decontamination effect. The results of this study can provide some valuable references for aerobic granular sludge cultivation. |
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| Keywords: | aerobic granular sludge decontamination effect characteristics granulation mixed carbon source |
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