Removal efficiency of polycyclic aromatic hydrocarbons and phthalate esters by surface flow wetland in Shunyi district, Beijing

2nd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Li, Binghua^1 ; Liu, Licai^1 ; Han, Li^1 ; Yang, Yong^1

Beijing Eng. Research Center for Non-conventional Water Resources Utilization and Water Saving, Beijing Water Science and Technology Institute, Chegongzhuang west road, Haidian District, Beijing

100048, China^1

关键词: Di-2-ethylhexyl phthalate;    Dibutyl phthalates;    Gas chromatography-mass spectrometries (GC-MS);    Industrial wastewaters;    Polycyclic aromatic hydrocarbons (PAHS);    Removal efficiencies;    Surface-flow wetland;    Treatment effects;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/59/1/012041/pdf
DOI  :  10.1088/1755-1315/59/1/012041

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The surface flow wetland (SFW) system was located on Shunyi district, Beijing. It was built to treat industrial wastewater and domestic sewage, which were looked as its influent. Here sixteen polycyclic aromatic hydrocarbons (PAHs) and six phthalate esters (PAEs) were detected by gas chromatography-mass spectrometry (GC-MS).To determine treatment effect of SFW system, concentrations of targeted compounds in the influent were compared with those in the effluent. Results showed typical compounds of industrial wastewater were naphthalene (NAP), phenanthrene (PHE), dibutyl phthalate (DBP), di-(2-ethylhexyl) phthalate (DEHP), and their concentrations were ranged from 122.6 ng.L-1to 760.6 ng.L-1. However typical compounds of domestic sewage were NAP, anthracene (ANT), PHE, DBP, diethyl phthalate (DEP), DEHP, and their concentrations were ranged from 280 ng.L-1to 7998.1 ng.L-1. Typical compounds of effluent were NAP, PHE, DBP, DEHP, and their concentrations changed between 4.2 ng.L-1and 1430.74 ng.L-1. The removal rate of those compounds were 10% ∼ 99%, and nineteen compounds removal rate reached above 70%.Therefore, it can be concluded that SFW system had a strong effect on the removal of these compounds.