[1]刘 茵,张 挺,王旭冕,等.改性木屑对初期雨水径流污染的控制性能研究[J].西安建筑科技大学学报(自然科学版),2018,50(05):730-0734.[doi:10.15986/j.1006-7930.2018.05.017]
 LIU Yin,ZHANG Ting,WANG Xumian,et al.Research on performance of pollutants removal in ripening rainfall runoff by modified sawdust[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2018,50(05):730-0734.[doi:10.15986/j.1006-7930.2018.05.017]
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改性木屑对初期雨水径流污染的控制性能研究()
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西安建筑科技大学学报(自然科学版)[ISSN:1006-7930/CN:61-1295/TU]

卷:
50
期数:
2018年05期
页码:
730-0734
栏目:
出版日期:
2018-10-28

文章信息/Info

Title:
Research on performance of pollutants removal in ripening rainfall runoff by modified sawdust
文章编号:
1006-7930(2018)05-0730-05
作者:
刘 茵1张 挺2王旭冕2张建锋2*
(1.西安建筑科技大学 建筑设计研究院,陕西 西安;2.西安建筑科技大学 环境与市政工程学院,陕西 西安 710055 )
Author(s):
LIU Yin1 ZHANG Ting2 WANG Xumian2 ZHANG Jianfeng2
(1.Architectural design and Research Institute, Xian Univ. of Arch . & Tech .; 2. School of Environment and Municipal Engineering, Xi an Univ. of Arch . & Tech. Xi an 710055, China)
关键词:
城市绿地系统改性木屑持水量径流污染控制
Keywords:
unban green space modified sawdust holding water capacity runoff pollutants reduction
分类号:
TU 998.9
DOI:
10.15986/j.1006-7930.2018.05.017
文献标志码:
A
摘要:
城市绿地系统在储蓄雨水的同时净化水质,可以达到径流滞纳消峰和面源污染削减的双重功效,是目前国内海绵城市建设的重要内容之一。本文基于西安市城区屋面和路面降雨径流污染特征监测分析,利用改性木屑与土壤形成的复合基质来改良绿地系统,在提升绿地基层持水性能的同时强化其对初期雨水污染物的截留与消减。结果显示,屋面及道路前30 min径流中COD、SS、TN浓度的衰减速度最大,后期污染物浓度稳定;与屋面比较城市道路初期雨水污染物浓度较高,初期雨水含有污染物浓度占到整场降雨的65%以上;复合基质的持水量比原状土壤提高50%,复合基质对径流雨水主要污染物有较好去除效果,去除率稳定在60%以上。研究表明采用改性木屑构造的复合基质作为绿地基层,对初期雨水径流有较好蓄存和净化效果。
Abstract:
Unban green space system were promoted to reduce runoff and contaminants widely , and were paid enough attentions in Sponge City Strategy Planning which was launched in many Chinese urban city. Based on characteristics of rainfall and runoff pollutants at roofs and pavements in Xi’an urban, a novel lawn treatment system with composite material basement of modified sawdust was designed to improve the capacity of water holding and pollutants removal. Results demonstrated that the rate of reduction of CODcr, SS, and TN content in the initial 30 min rainwater from roof and road were higher than the subsequent runoff process. Pollution concentrations in runoff from road was higher than from building roof, and concentrations of main pollutants in the initial rainwater accounts for more than 65% of that in the entire rainfall; the removal efficiency of improved lawn treatment system exceeded 60% for main contaminants and heavy metal pollutants, and the holding water capacity was increased up to 30%. This research indicated that the improved lawn treatment system could be applied successfully for rainwater management and non-point source pollution control in urban area

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-08-23 修改稿日期:2018-09-19
项目基金:国家重点研发计划(2017YFC0403403-3/01)
第一作者:刘茵(1971-),女,高级工程师,主要研究方向:水处理与节水技术,建筑给排水。Email:yin_liu@xauat.edu.cn
更新日期/Last Update: 2018-11-21