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http://dx.doi.org/10.5141/JEFB.2004.27.6.375

Biological Treatment of Processed-Leachate from Landfills by Reed (Phragmites australis)-Bed in a Continuous Flow System  

Kim, In-Sung (School of Life Sciences, Seoul National University)
Cho, Yong-Joo (School of Life Sciences, Seoul National University)
Choi, Hong-Keun (College of Natural Science, Ajou University)
Lee, Eun-Ju (School of Life Sciences, Seoul National University)
Publication Information
The Korean Journal of Ecology / v.27, no.6, 2004 , pp. 375-381 More about this Journal
Abstract
We investigate the biological treatment of processed-leachate from SUDOKWON landfill site in Korea by the reed (Phragmites australis)-bed with a continuous flow system. The reed individuals showing superior growth in processed-leachate experiment were selected among the reeds of thirteen natural habitats by means of the comparisons between the removal rates of nutrient salts, eco-physiological responses and growth. The reed-beds (combination of the reed individuals showing superior growth with helper microorganisms) were continuously supplied with processed-leachate. We monitored the effluents that passing through the reed-beds during the experiment period. After five weeks, analysis results of effluent from each reed-bed were as follows; chromaticity, total nitrogen, total phosphorus, biological oxygen demand, chemical oxygen demand, total dissolved solid and salinity decreased $29.5{\sim}36.9\%,\;49.4{\sim}67.2\%,\;42.1{\sim}94.6\%,\;74.5{\sim}88.8\%,\;15.6{\sim}20.8\%,\;17.5{\sim}35.4\%\;and\;15.3{\sim}34.7\%$, respectively. These results represented the substantial improvement of water-quality after passing through reed-bed in a continuous flow system.
Keywords
Continuous flow system; Landfill leachate; Phragmites australis; Phytoremediation;
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