铝污泥填料改良生物滞留池对径流污染的削减效果

张瑞斌; 潘卓兮; 奚道国; 周乃; 祖白玉

doi:10.12153/j.issn.1674-991X.20200183

铝污泥填料改良生物滞留池对径流污染的削减效果

doi: 10.12153/j.issn.1674-991X.20200183

张瑞斌^1,2,3,,
潘卓兮^1,2,3,
奚道国^1,2,3,
周乃^1,2,
祖白玉^1,2

1.
江苏龙腾工程设计股份有限公司
2.
江苏省雨污水资源化利用工程技术研究中心
3.
南京市生态河道工程技术研究中心

详细信息

作者简介:
张瑞斌(1985—),男,高级工程师,博士,主要从事水体污染治理及生态修复方面研究, zhangrb88@126.com

中图分类号: X52,TU992
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- 被引次数: 0
出版历程
- 收稿日期: 2020-07-27
- 刊出日期: 2021-07-20

Effect of aluminum sludge filler improved bioretention tank on runoff pollutant reduction

ZHANG Ruibin^{1,2,3
,},
PAN Zhuoxi^1,2,3,
XI Daoguo^1,2,3,
ZHOU Nai^1,2,
ZU Baiyu^1,2

1.
Jiangsu Long-leaping Engineering Design Co., Ltd.
2.
Jiangsu Rainwater Recycling Engineering Technology Research Center
3.
Nanjing Ecological River Engineering Technology Research Center

摘要

摘要: 针对传统填料生物滞留池对氮、磷等污染物削减效果较差的问题,开展不同配比铝污泥填料改良生物滞留池研究。设置铝污泥与沸石配比为3∶2(低配比)和4∶1(高配比)填料的生物滞留池,研究其对高、中、低3种浓度模拟雨水的渗透性和去除效果。结果表明:与低配比铝污泥填料生物滞留池相比,高配比铝污泥填料生物滞留池的渗透性较强,且随着运行周期的增长,其渗透性下降较为缓慢,高配比铝污泥填料可提高生物滞留池的使用寿命;通过提高铝污泥填料配比,可以显著提升对高浓度雨水中污染物的去除效果,尤其是对TP的去除率可达89.0%,对COD、TN和NH₃-N去除率可达62.4%、66.4%和68.0%;铝污泥配比高低对低浓度雨水的污染物去除效果无明显差异。
- 铝污泥填料 /
- 级配比例 /
- 改良生物滞留池 /
- 渗透性 /
- 径流
Abstract: In view of the poor effect of traditional filler bioretention tank on the reduction of nitrogen, phosphorus and other pollutants, the study on improving the bioretention tank with different proportions of aluminum sludge filler was carried out. The bioretention tanks with aluminum sludge and zeolite ratio of 3:2 (low ratio) and 4:1 (high ratio) were set up to study the permeability and removal effect of simulated rainwater with high, medium and low concentrations. The results showed that compared with the low proportion aluminum sludge filler bioretention tank, the high proportion aluminum sludge filler bioretention tank had stronger permeability, and with the growth of the operation cycle, its permeability decreased slowly. The high proportion aluminum sludge filler could improve the service life of the bioretention tank; by increasing the aluminum sludge filler ratio, it could significantly improve the removal efficiency of pollutants of high concentration rainwater. Especially, the removal rates of TP, COD, TN and NH₃-N could reach 89.0%, 62.4%, 66.4% and 68.0%, respectively. There was no significant difference in the removal efficiency of low concentration rainwater pollutants by high or low aluminum sludge ratio.
- aluminium sludge filler /
- gradation ratio /
- improved bioretention pool /
- permeability /
- runoff

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