Effectiveness of arsenic phytoremediation using Ludwigia octovalvis in a pilot reed bed system

HARMIN SULISTIYANING, TITAH and HASSAN, BASRI and MUHAMMAD, MUKHLISIN and MUSHRIFAH, IDRIS and NURINA, ANUAR and SITI ROZAIMAH SKEIKH, ABDULLAH (2014) Effectiveness of arsenic phytoremediation using Ludwigia octovalvis in a pilot reed bed system. In: International Conference on Advances In Applied Science and Environmental Engineering - ASEE 2014, 02 - 03 August, 2014, Kuala Lumpur, Malaysia.

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Abstract

Ludwigia octovalvis (Jacq.) P.H. Raven is a terrestrial tropical plant in Malaysia having the ability to uptake and accumulate arsenic in their tissue. The effectiveness of arsenic phytoremediation by L. octovalvis in pilot reed bed system using arsenic spiked sand was conducted to determine the feasibility using this plant in a large scale of phytoremediation. The depth of arsenic spiked sand in a reed bed system was 10 cm with another two fine and medium gravels layer below, each at 10 cm depth. All treatments were carried out without addition of fertilizer, bacteria or aeration. The higher arsenic uptake and accumulation reached 528.5 ± 68.3 mg/kg in leaves of L. octovalvis after 42 days of exposure at arsenic concentration of 39 mg/kg. Based on the translocation factor (TF) and bioaccumulation factor (BF) values, indicating phytoextraction has role process in arsenic phytoremediation using L. octovalvis in a pilot reed bed system using spiked sand. The effectiveness of arsenic phytoremediation increased with time exposure. The effectiveness uptake percentages of total arsenic mass at concentrations of 5, 22 and 39 mg/kg on Day 42 were 100, 43.8 and 18.5% respectively. It was concluded that L. octovalvis has the potential to be used in pilot arsenic phytoremediation.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: arsenic, uptake, accumulation, performance, pilot reed bed, effectiveness.
Depositing User: Mr. John Steve
Date Deposited: 27 May 2019 07:59
Last Modified: 27 May 2019 07:59
URI: http://publications.theired.org/id/eprint/2751

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