Correlation of Hg-N on ex-gold mining soil ameliorated with Sub-Bituminous coal and activation of Sub-Bituminous coal–NaOH

Abstract Mercury (Hg) contamination has become a serious threat to ecosystems. Amelioration technology for soil is expected control the specific interactions between N in ex-gold mining contaminated with Hg. This research aimed analyze interaction of Hg-N on ameliorated sub-bituminous coal and activation 10% NaOH. The experimental design used this study was Completely Randomized Design three replications. treatment I (Sub-bituminous coal) II [activation Sub-bituminous NaOH) implemented pot equivalent doses, respectively: (A) 0 [0g 100g -1 soil], (B) 10 [0.5g (C) 20 [1g (D) 30 [1.5g (E) 40 t ha [2.0g soil]. correlation total Hg l [r = -0.889** or -9.9794 (N) + 6.9097; R 2 0.9222] NaOH -0.835** -4.3111 6.4265; 0.8156]. land can reduce by 2.50 2.84 mg kg also increase 0.23 % 0.53% respectively, compared control.