Treatment of actual low carbon source urban sewage with solid carbon source biofilm SND

doi:10.11894/iwt.2018-0665

Industrial Water Treatment ›› 2019, Vol. 39 ›› Issue (8): 19-22, 106. doi: 10.11894/iwt.2018-0665

• Research and Experiment • Previous Articles Next Articles

Treatment of actual low carbon source urban sewage with solid carbon source biofilm SND

Liqiu Zhang^1,²(),Dengmin Wang^1,²,Shugeng Li^2,^3,*(),Zhijuan Lei^1,²,Peifen He^1,²

1. School of Civil Engineering, Guangzhou University, Guangzhou 510006, China
2. Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou 510006, China
3. School of Civil Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China

Received:2019-05-20 Online:2019-08-20 Published:2019-08-21
Contact: Shugeng Li E-mail:zlqiu@163.com;lishugeng@163.com
Supported by:
国家自然科学基金项目(51478127);国家自然科学基金项目(51708140);广州市科技计划项目(201510010051);广州大学研究生创新研究资助计划(2017gDJC-M42)

固体碳源生物膜SND处理实际低碳源城市污水

张立秋^1,²(),王登敏^1,²,李淑更^2,^3,*(),雷志娟^1,²,何培芬^1,²

1. 广州大学土木工程学院, 广东广州 510006
2. 珠江三角洲水质安全与保护教育部重点实验室, 广东广州 510006
3. 广州大学环境科学与工程学院, 广东广州 510006

通讯作者: 李淑更 E-mail:zlqiu@163.com;lishugeng@163.com
作者简介:张立秋(1978-),博士,副教授。电话:18027330699, E-mail:zlqiu@163.com
基金资助:
国家自然科学基金项目(51478127);国家自然科学基金项目(51708140);广州市科技计划项目(201510010051);广州大学研究生创新研究资助计划(2017gDJC-M42)

Abstract

Abstract:

The corncob filler solid carbon source biofilm reactor is used to treat low-carbon-nitrogen ratio municipal sewage by simultaneous nitrification and denitrification(SND) technology. The denitrification effect of the reactor on the actual sewage is investigated, and the change process and microbial quantity characteristics of NH₄⁺-N along the reactor are analyzed. The results show that after the reactor is operated stably, the average effluent COD_Cr, NH₄⁺-N and TN of the system are 32.75 mg/L, 5.78 mg/L and 6.25 mg/L, respectively. The average COD_Cr removal rate is 65.41%, the average NH₄⁺-N removal rate is 78.75% and the average TN removal rate is 77.46%. It could be seen from fluorescence quantitative PCR that AOB is mainly concentrated in the middle end of the reactor, and the rate of ammoxidation along the path shows a downward trend, which is consistent with the trend of ammonia nitrogen concentration and its removal rate along the path.

Key words: solid carbon source, simultaneous nitrification and denitrification, low carbon sewage, AOB

摘要：

采用玉米芯填料固体碳源生物膜反应器，应用同步硝化反硝化（SND）技术处理低碳氮比城市生活污水，考察反应器对实际污水的脱氮效果，并分析了反应器中沿程NH₄⁺-N的变化过程和微生物数量特性。结果表明，反应器稳定运行后，系统出水平均COD_Cr、NH₄⁺-N、TN分别为32.75、5.78、6.25 mg/L，平均COD_Cr去除率为65.41%，平均NH₄⁺-N去除率为78.75%，平均TN去除率为77.46%。由荧光定量PCR可知，AOB主要集中在反应器的中端部，沿程氨氧化速率呈下降趋势，与沿程氨氮浓度及其去除率变化趋势一致。

关键词: 固体碳源, 同步硝化反硝化, 低碳污水, AOB

CLC Number:

X703

Liqiu Zhang,Dengmin Wang,Shugeng Li,Zhijuan Lei,Peifen He. Treatment of actual low carbon source urban sewage with solid carbon source biofilm SND[J]. Industrial Water Treatment, 2019, 39(8): 19-22, 106.

张立秋,王登敏,李淑更,雷志娟,何培芬. 固体碳源生物膜SND处理实际低碳源城市污水[J]. 工业水处理, 2019, 39(8): 19-22, 106.

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URL: https://www.iwt.cn/EN/10.11894/iwt.2018-0665

https://www.iwt.cn/EN/Y2019/V39/I8/19

Figures/Tables 7

References 12

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项目	COD_Cr/（mg·L^-1）	TN/（mg·L^-1）	NH₄⁺-N/（mg·L^-1）	NO₃^--N/（mg·L^-1）	NO₂^--N/（mg·L^-1）
范围	80.0~120.0	24.7~30.7	24.3~30.4	0.05~0.84	0.0~0.41
平均值	100.0	27.7	27.5	0.4	0.2

项目	COD_Cr/（mg·L^-1）	TN/（mg·L^-1）	NH₄⁺-N/（mg·L^-1）	NO₃^--N/（mg·L^-1）	NO₂^--N/（mg·L^-1）
范围	80.0~120.0	24.7~30.7	24.3~30.4	0.05~0.84	0.0~0.41
平均值	100.0	27.7	27.5	0.4	0.2

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