Characterization of Incineration Bottom Ash in Taiwan and Its Effect on the Grown of Ipomoea aquatica

Eva B. Rivera ； Odette Varela Milla ； Wu-Jang Huang

《國際創新發明大會》 2010 (2010/10) Pp. 55-56

並列摘要

In this study we would like to report the properties of incineration bottom ash and its effect on the physiological growth behavior over leafy vegetables. A hydroponic system under greenhouse conditions was conducted to evaluate the genotoxicity and bioaccumulation capacity of Ipomoea aquatic (water spinach) grown in a heavily contaminated wastewater obtained from an recycling facility of municipal solid waste incineration (MSWI) bottom ash in the South Taiwan. Plants were grown with different volume percentages of treated and untreated wastewater, for four weeks. Genotoxicity of MSWI bottom ash wastewaters was assessed by the measurement of plant biomass (root length and shoot height and fresh weight). Wastewater determination of heavy metals and trace elements concentration were performed using ionic coupling plasma. Visible toxicity symptoms were noticeable in the treatment containing 50% of treated wastewater, plants receiving 50% of untreated wastewater died within less than 24 hours. Preliminary results indicate that using 50% of untreated wastewater is highly toxic for the development of water spinach. Thus indicating that the plant were unable to bioremediate highly contaminated wastewaters.

並列關鍵字

leafy vegetables ； genotoxicity ； bottom ash ； heavy metals ； bioremediation