Accumulation of PAHs in plants from vertical flow-constructed wetland

被引:10
作者
Warezak, Tomasz [1 ]
Wlodarczyk-Makula, Maria [2 ]
Sadecka, Zofia [3 ]
机构
[1] Inst New Technol Environm Engn, PL-67100 Nowa Sol, Poland
[2] Czestochowa Tech Univ, Dept Environm Chem Water & Wastewater Technol, PL-42200 Czestochowa, Poland
[3] Univ Zielona Gora, Inst Environm Engn, PL-65516 Zielona Gora, Poland
关键词
Wastewater; VF-CW treatment plant; PAHs; HPLC-DAD; POLYCYCLIC AROMATIC-HYDROCARBONS; SEWAGE-SLUDGE; WASTE-WATER; SUBSURFACE FLOW; HEAVY-METALS; BIODEGRADATION; DEGRADATION; SOILS;
D O I
10.1080/19443994.2015.1017332
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The aim of the investigation was to determine PAHs concentration in the biofilter and in parts of the plant taken from a wetland wastewater treatment plant vertical flow-constructed wetland in technical conditions. Determination of PAHs in parts of plants of Glyceria maxima: roots, stems, and leaves was carried out. The high pressure liquid chromatography with a diode array detector was used for qualification and quantification of PAHs. The extraction process for samples was carried out in an ultrasonic bath with dichloromethane as solvents. Then extracts were purified using SPE columns packed with silica gel in vacuum conditions. The 16 PAHs according to US EPA list were analyzed. The initial contents of total PAHs were 37g/kgdm on average. Concentration of these compounds in roots was twice as high (85g/kgdm). The highest concentration of analyzed hydrocarbons in leaves was noted (143g/kgdm). In extracts from the surface of leaves the total of PAHs concentration did not exceed 60g/kgdm. It demonstrates the ability of deposition of these compounds from the air. The content of PAHs in stems (92g/kgdm) was similar to the content of these compounds in roots (85g/kgdm).
引用
收藏
页码:1273 / 1285
页数:13
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