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A bench-scale, continuous-flow submerged aerated biofilter was used to treat a RCRA-hazardous landfill leachate under steady- and non-steady hydraulic and organic loadings. At 1.37 day empty bed contact time and constant hydraulic flow rate, the biofilter achieved a removal efficiency of 76% for chemical oxygen demand (COD), equivalent to 95% of estimated biologically degradable COD in the influent...
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