REMOVAL EFFICIENCY OF TOTAL CHROMIUM IN LEACHATE FROM LANDFILL USING IMMOBILIZED SKELETONEMA SP.Tabitha Primawidanti Kurniawan, Eko Prasetyo Kuncoro, Tini Surtiningsih, Nur Indradewi Oktavitri and Thin SoedartiAbstract This research aims to determine the difference in efficiency of Total chromium removal with variations in contact time. In this research Skeletonema sp. immobilized with sodium alginate through the cell coupling method. Data on total chromium removal efficiency was tested using One-Way ANOVA (α=0.05) and continued with Duncan test (α = 0.05). The results of the total removal efficiency of total chromium from landfill by immobilized Skeletonema sp. increased from day1 to day 7, (from 72.01%, 80.29%, 85.42%, 91.16%, 91.61%, to 94.59%); with the highest efficiency on day 7 is 96.11%. As contact time increases, sodium alginate can increase the ability of passive biomass immobilization. Immobilized Skeletonema sp has high capability to remediate total Crinleachate from landfill. |