摘要：Fermented rice noodle industry can generate a large volume of undesirable liquid waste into the environment.This study was conducted to investigate the ability of Vetiver grass (Vetiveria zizaniodes (L.) Nash) andsedge (Cyperus corymbosus Rottb.) to treat wastewater from fermented rice noodle industry. Vetiver grassand sedge were cultured into flooding condition and used for treated wastewater (TWW) and untreatedwastewater (UWW) in experiment. The results found that vetiver grass and sedge could grow well in TWW;whereas, the growth vetiver grass and sedge in UWW was slow because the vetiver grass and sedge werenon-tolerant to high COD concentration of UWW in the long period of this experiment. Moreover, UWW alsocould decrease wastewater treatment efficiency of vetiver grass and sedge. Unlike, TWW could increasewastewater treatment efficiency in both vetiver grass and sedge leading to long period of treatment experiment.The results also found that wastewater treatment capability in both vetiver grass and sedge declined astreatment experimental period increased; however, vetiver grass performance was more stable than sedge.To achieve the water quality standard of Pollution Control Department, wastewater could be remediated up to56 days using vetiver grass planted in soil filter system.
