Abstract: Constructed wetlands have potential of treating wastewater of poor biodegradability. The performance of a multistage sub-surface flow wetland treating municipal landfill leachate was assessed during three years of operation. During the study three research periods with different operation conditions were established. The hydraulic loads, operation mode of vertical flow beds and type of treated wastewater (raw leachate - leachate mixed with municipal wastewater) were changed. Removal of organic matter and nitrogen species was evaluated in each p...
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Topics: 
Environmental engineering
Environmental chemistry
Waste management