Pollutant Removal Efficiency of Pilot-Scale Horizontal Subsurface Flow Constructed Wetlands Treating Landfill Leachate

被引：0

作者：

Ntountounakis, Ioannis ^{[1
]}

Margaritou, Ioanna-Eirini ^{[1
]}

Pervelis, Ioannis ^{[1
]}

Kyrou, Pavlos ^{[1
]}

Parlakidis, Paraskevas ^{[2
]}

Gikas, Georgios D. ^{[1
]}

机构：

[1] Democritus Univ Thrace, Sch Engn, Dept Environm Engn, Lab Ecol Engn & Technol, Xanthi 67100, Greece

[2] Democritus Univ Thrace, Fac Agr Dev, Lab Agr Pharmacol & Ecotoxicol, 193 Pantazidou, Orestias 68200, Greece

来源：

APPLIED SCIENCES-BASEL | 2025年 / 15卷 / 05期

关键词：

constructed wetland; landfill leachate treatment; hydraulic residence time; zeolite; reed; cattail; WASTE-WATER; DESIGN PARAMETERS; NITROGEN REMOVAL; PERFORMANCE;

D O I：

10.3390/app15052595

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Landfill leachate contains various organic and inorganic substances resulting from the decomposition of solid waste. The treatment of this complex mixture is an imperative need for environmental protection. This study used five pilot-scale horizontal subsurface flow (HSF) constructed wetland (CW) units to treat landfill leachate. The main objective was the evaluation of the performance of CW units in the removal of pollutants. The effect of porous media (gravel and zeolite), plants (common reed and cattail), and hydraulic residence time (HRT, 8 and 10 days) were investigated. Two pilot-scale CW units differed in HRT, two in porous media, and three in planting. The results showed that the planted CW units had higher organic matter (OM) and nitrogen (TKN, NH4-N) removal compared with the unplanted unit. The 10-day HRT CW unit had higher average removal rates for all pollutants compared with the CW unit with an 8-day HRT. Finally, the CW unit with zeolite (25%, by volume) in the fill material showed higher average removal rates for OM and nitrogen compared to the unit with gravel.

引用

页数：17

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