Effect of Kalium Dihydrogenphosphate (KH2PO4) as Phosphate Source In Mercury Accumulation by Aquatic Plant, Thypa Latifolia

Suhendrayatna Suhendrayatna, Muhammad Zaki, Erdiansyah Rahmi, Elvitriana Elvitriana

Abstract


This research focused to study the effect of phosphate (as KH2PO4) on mercury accumulation by Aquatic Plant, Thypa Latifolia. Five stems of Thypa latifolia was cultured for five weeks in water containing mercury ion (10 mg-Hg/L) in pounds under controlled condition. Kalium Dihydrogenphosphate has been added to know the effect of phosphate at different concentrations (0; 5; 10; and 15 m-moles PO4) and no phosphate added in the water phase for control media. Biomass samples (shoots, stems, and leaves) from every pounds were taken for every treatment period and mercury concentration in biomass were measured by using Atomic Absorption Spectrophotometer Shimadzu AA 630 under standard procedure after digested. Results showed that the growth of Typha latifolia higher with the presence of phosphate in water phase, however the presence of phosphate could not promote better mercury accumulation from water phase. Accumulated mercury was found highest in roots than other part of plant. This finding showed that the presence of phosphate [as KH2PO4] did not affect to better mercury accumulation in parts of plant.

 

Keyword: phosphate, mercury, accumulation, and Thypa latifolia.


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