Experimental Study on Purification Effect of Biochemical Pool Model for Treatment of Pavement Runoff by Aquatic Plants

Qinge Wang, He Cao, Huanan Yu, Luwei Zhao, Jinchan Fan and Yingqing Wang
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Qinge Wang: School of Civil Engineering, Central South University, Changsha 410075, China
He Cao: National Engineering Laboratory for Highway Maintenance Technology, Hunan International Scientific and Technological Innovation Cooperation Base of Advanced Construction and Maintenance Technology of Highway, School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha 410114, China
Huanan Yu: National Engineering Laboratory for Highway Maintenance Technology, Hunan International Scientific and Technological Innovation Cooperation Base of Advanced Construction and Maintenance Technology of Highway, School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha 410114, China
Luwei Zhao: School of Civil Engineering, Central South University, Changsha 410075, China
Jinchan Fan: School of Civil Engineering, Central South University, Changsha 410075, China
Yingqing Wang: School of Civil Engineering, Central South University, Changsha 410075, China

Sustainability, 2020, vol. 12, issue 6, 1-14

Abstract: The road runoff after rainfall carries a lot of pollutants that could cause great harm to the water environment. A biochemical pool can be used as a treatment for the road runoff. In order to further improve the efficiency of road runoff treatment by biochemical pool and to evaluate the purification effect of the aquatic plants, two aquatic plants of Iris pseudacorus and Myriophyllum verticillatum were chosen in this research. The effect of different planting densities on the treatment of runoff pollutants and the planting mode by different aquatic plants were studied. The results show that both plants have the ability to remove the pollutants like chemical oxygen demand (COD), Zn, Cu, oil, and suspended solids (SS), and the ability is increased with the increase of planting density. The Iris pseudacorus is better than Myriophyllum verticillatum on the removal of Zn, while Myriophyllum verticillatum does better on the removal of Cu, oil, and SS. Combined planting mode can effectively improve the purification effect of COD and petroleum.

Keywords: road runoff; aquatic plant; pollution treatment; Iris pseudacorus; Myriophyllum verticillatum (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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