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- Title
Removal of runoff pollutants by construction waste bricks-based bioretention facilities.
- Authors
Zhang, Xiaoran; Tian, Yiran; Guo, Shimin; Liu, Junfeng; Wang, Yinrui; Zhang, Ziyang; Li, Haiyan
- Abstract
Construction waste bricks (CWB) were simply pre-treated as fillers applied in different filler layers of bioretention facility. The removal effect of runoff pollutants in CWB-modified facilities was investigated and compared with traditional facility with gravel and sand. Leaching test shows that both CWB-modified and traditional bioretention facilities leach TN, and CWB-based facilities leach Cr. CWB-based facility shows good removal effect toward TP, NH4+-N and COD, with the removal ratio of 0.90, 0.80 and 0.70, respectively. CWB-based facility also shows good removal effects toward Cu, Zn, Cd, Pb and Mn, with the removal ratio of 0.55–0.82, 0.65–0.92, nearly 1.00, above 0.90 and nearly 0.98, respectively. Generally, the removal effect of both CWB and traditional facilities on runoff pollutants is basically stable and the removal ratio is relatively high after running for 40 days. Economic calculation shows that CWB-based facilities could reduce the cost of fillers by 67.2–88.4%, which further confirmed the replacement of traditional fillers by CWB. This study could not only enhance the removal ability of runoff pollutants by bioretention facilities, but also provide a new way for the utilization of CWB.
- Subjects
CONSTRUCTION &; demolition debris; RUNOFF; POLLUTANTS; BRICK building; FACILITIES
- Publication
Journal of Material Cycles & Waste Management, 2022, Vol 24, Issue 4, p1444
- ISSN
1438-4957
- Publication type
Article
- DOI
10.1007/s10163-022-01394-w