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Phytoremediation of arsenic from geothermal power plant waste water using Monochoria vaginalis, Salvinia molesta and Colocasia esculenta

2013; Volume: 3; Issue: 6 Linguagem: Inglês

10.12692/ijb/3.6.104-111

2222-5234

Bagyo Yanuwiadi, Bobby Vian Jhon Polii,

Arsenic contamination and mitigation

The aim of the research was to identify the ability of Monochoria vaginalis, Salvinia molesta and Colocasia esculenta to decrease Arsenic pollutant from thermal energy waste water through phytoremediation process. An experimental pool was made in field and filled with waste water of geothermal power plant in Lahendong, North Sulawesi. Arsenic content in root and leaf tissue was observed by Atomic Spectrophotometer Atomic Adsorption (ASS). The result of the study showed that there was no significant difference of As absorption among Monochoria vaginalis, Salvinia molesta and Colocasia esculenta. There were two models of As absorption as follows: the As absorption in root followed exponential asymptotic, while absorption by leaf was exponential growth. This research confirmed that Monochoria vaginalis, Salvinia molesta and Colocasia esculenta are the potential species for phytoremediation program.