钟兴^1,,
张伟^1,2,3,
田笑尘¹,
孙超逸¹,
刘亚奇¹,
车伍^1,2,3,
张海龙⁴,
崔新伟⁴
1.北京建筑大学北京市可持续城市排水系统构建与风险控制工程技术研究中心，北京100044
2.北京建筑大学城市雨水系统与水环境教育部重点实验室，北京100044
3.北京建筑大学北京未来城市设计高精尖创新中心，北京100044
4.庄河市城乡规划建设局，庄河116400
基金项目: 国家自然科学基金资助项目（51608026）
高精尖创新中心科研项目（UDC2016040100）
北京建筑大学科研基金资助项目（00331616049）
北京市科技计划课题（D161100005916004）
北京建筑大学金字塔人才培养工程资助项目

Runoff pollutants purification effect of bioretention media improved by black-odorous river sediments

ZHONG Xing^1,,
ZHANG Wei^1,2,3,
TIAN Xiaochen¹,
SUN Chaoyi¹,
LIU Yaqi¹,
CHE Wu^1,2,3,
ZHANG Hailong⁴,
CUI Xinwei⁴
1.Beijing Engineering Research Center of Sustainable Urban Sewage System Construction and Risk Control, Beijing University of Civil Engineering and Architecture, Beijing 100044,China
2.Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044,China
3.Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing 100044,China
4.Zhuanghe Urban-Rural Planning and Development Bureau, Zhuanghe 116400, China

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摘要:黑臭河道疏浚底泥是黑臭水体治理的“副产物”之一，如何有效、安全地处理处置大量疏浚底泥是黑臭水体治理中亟待解决的重要问题。以生物滞留柱小试模拟实验，评价黑臭河道底泥用于生物滞留填料的可行性以及设施对雨水径流污染物的净化效果。在设施初期8次淋失实验（累计进水量3.6倍空床体积）后，各模拟柱出水的COD、TN和TP浓度基本趋于稳定；在模拟地表径流进水实验阶段，不同填料组成模拟柱对COD、TN和TP的去除效果在18、21和20个周期后基本趋于稳定；添加有6%的河道底泥、20%的木屑（体积比）并设有存水区的模拟柱，对COD、TN、TP去除效果相对较好，稳定阶段平均去除率分别为（91.52±3.02）%、（86.82±7.09）%、（96.73±2.06）%，相对仅填装田园土的模拟柱，对COD、TN、TP的去除率可提高5.74%、43.61%、9.49%。河道底泥与河口感潮河段底泥用于改良生物滞留设施的填料，尽管存在一定污染物淋失风险，但通过合理配置填料组成和设施结构，可一定程度提高设施对COD、TN、TP的净化效果。
关键词: 生物滞留/
黑臭河道底泥/
改良填料/
径流污染控制

Abstract:Dredged river sediment is one of the "by-products" in black-odorous river remediation. The treatment and disposal of large quantities of dredged river sediment effectively and safely is an urgent problem. In this study, bioretention column was used to study the feasibility of using black-odor river sediment as an improved media in bioretention, and the runoff pollutants removal efficiency by bioretention column. After 8 leaching experiments in the initial stage of performance (accumulated 3.6 times of empty bed volume), the concentrations of COD, TN and TP in each simulated column basically stabilized. In simulated runoff experiments, the removal efficiencies of COD, TN and TP for different bioretention columns basically stabilized after 18, 21 and 20 rainfall experiments, respectively. The removal rates of COD, TN and TP for the column with a submerged zone and filled with 6% sediment and 20% woodchip (volume ratio) were relatively good. The average removal rates in the stabilization phase were (91.52 ± 3.02)%, (86.82 ± 7.09)% and (96.73 ± 2.06)%, respectively. The removal rates of COD, TN and TP were increased 5.74%, 43.61% and 9.49%, comparing to the column filled with native soil. Although there is a certain risk of leaching pollutants for bioretention media improved with the river sediments, the reasonable proportion of packing composition and facility structure can improve the effect of facilities on COD, TN, TP control.
Key words:bioretention/
black-odorous river sediments/
improved media/
runoff pollution control.

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基于黑臭河道底泥利用的生物滞留设施对雨水径流污染的净化效果

钟兴^1,,
张伟^1,2,3,
田笑尘¹,
孙超逸¹,
刘亚奇¹,
车伍^1,2,3,
张海龙⁴,
崔新伟⁴
1.北京建筑大学北京市可持续城市排水系统构建与风险控制工程技术研究中心，北京100044
2.北京建筑大学城市雨水系统与水环境教育部重点实验室，北京100044
3.北京建筑大学北京未来城市设计高精尖创新中心，北京100044
4.庄河市城乡规划建设局，庄河116400
基金项目: 国家自然科学基金资助项目（51608026） 高精尖创新中心科研项目（UDC2016040100） 北京建筑大学科研基金资助项目（00331616049） 北京市科技计划课题（D161100005916004） 北京建筑大学金字塔人才培养工程资助项目
关键词: 生物滞留/
黑臭河道底泥/
改良填料/
径流污染控制
摘要:黑臭河道疏浚底泥是黑臭水体治理的“副产物”之一，如何有效、安全地处理处置大量疏浚底泥是黑臭水体治理中亟待解决的重要问题。以生物滞留柱小试模拟实验，评价黑臭河道底泥用于生物滞留填料的可行性以及设施对雨水径流污染物的净化效果。在设施初期8次淋失实验（累计进水量3.6倍空床体积）后，各模拟柱出水的COD、TN和TP浓度基本趋于稳定；在模拟地表径流进水实验阶段，不同填料组成模拟柱对COD、TN和TP的去除效果在18、21和20个周期后基本趋于稳定；添加有6%的河道底泥、20%的木屑（体积比）并设有存水区的模拟柱，对COD、TN、TP去除效果相对较好，稳定阶段平均去除率分别为（91.52±3.02）%、（86.82±7.09）%、（96.73±2.06）%，相对仅填装田园土的模拟柱，对COD、TN、TP的去除率可提高5.74%、43.61%、9.49%。河道底泥与河口感潮河段底泥用于改良生物滞留设施的填料，尽管存在一定污染物淋失风险，但通过合理配置填料组成和设施结构，可一定程度提高设施对COD、TN、TP的净化效果。

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