The effect of vermiculite and quartz in porous concrete on reducing storm-runoff pollution

被引：15
作者：
Azad A. [1 ]
Mousavi S.-F. [1 ]
Karami H. [1 ]
Farzin S. [1 ]
Singh V.P. [2 ]
机构：
[1] Faculty of Civil Engineering, Semnan University, Semnan
[2] Water Engineering, Department of Biological and Agricultural Engineering Zachry Department of Civil Engineering, Texas A M University, College Station, TX
来源：
ISH Journal of Hydraulic Engineering | 2021年 / 27卷 / 02期
关键词：
contamination reduction; Porous concrete; quartz; urban storm-runoff; vermiculite;
D O I：
10.1080/09715010.2018.1528482
中图分类号：
学科分类号：
摘要：
Urban storm-runoff is categorized as an accessible resource to be used in agriculture, industry, and groundwater recharge. One of the applications of porous concrete is to improve the quality of storm-runoff. The objective of present study was to investigate the effect of mixing vermiculite and quartz with porous concrete on reducing urban-runoff pollution. Different proportions of vermiculite and quartz (5–30%) were added to concrete and the effect of these additives on the ability of different mixtures to improve runoff quality was investigated. Results showed that both additives had a positive effect on the porous concrete to improve the quality of urban storm-runoff. With an increase of the additive ratio to 30%, the removal of total suspended solids (TSS), chemical oxygen demand (COD), and turbidity parameters increased from 45, 14, and 54% in the control treatment to 85, 43, and 76% in the vermiculite mixtures and 78, 45, and 84% in the quartz mixtures, respectively. None of the samples satisfactorily reduced electrical conductivity (EC) and sodium chloride (NaCl). These values for the best mixture were 6.7% and 7.8%, respectively. The study showed that permeability in the most impermeable quartz sample was good. © 2018 Indian Society for Hydraulics.
引用
收藏
页码：144 / 152
页数：8
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