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EFEKTIVITAS BAKTERI PELARUT POSFAT Bacillus subtilis Indriani Agustin, ; Yuliani, ; Yuni Sri Rahayu,
Matematika dan Sains Vol 16, No 1 (2009)
Publisher : Matematika dan Sains

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The aims of research were to study the enfluence adding of B. subtilis in various concentration to the phosfat concentration and TPH value on the mining land and to find the optimum concentration of B. subtilis. This research was experiment with completely randomized design using one treatment namely the concentration of B. subtilis with four replications. Data obtained were analyzed discriptively. The results of research showed that adding of B. subtilis in various concentration enfluence the increasing of phosfat concentration, decreasing of TPH value and C/N ratio on the mining land. The optimum concentration of B. subtilis was 109 cell/mL.9 cell/mL.
KEMAMPUAN BAKTERI Achromobacter xylosoxidans DAN Arthtrobacter polychromogenes TERHADAP PENURUNAN TOTAL PETROLEUM HYDROCARBON (TPH) PADA TANAH TERCEMAR MINYAK BUMI DI BOJONEGORO Lady Diana, ; Yuliani,
Matematika dan Sains Vol 16, No 1 (2009)
Publisher : Matematika dan Sains

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The goal of research were to study the enfluence adding of Achromobacter xylosoxidans and Arthtrobacter polychromogenes and its combination to TPH value, P-available, N-total, and C/N ratio on the land polluted by petrolleum and to find the kind of bacteria that could optimally decrease TPH value, increase phosfat available and N total, and decrease C/N ratio. This research was experiment with completely randomized design using one treatment namely using Achromobacter xylosoxidans and Arthtrobacter polychromogenes with four replications. Data obtained were analyzed descriptively. The results of research showed that the adding A. Xylosoxidans, A. Polychromogenes and its combination could decrease the TPH value, increase P-availlabe and N total, and decrease C/N ratio. A. xylosoxidans could decrease TPH value optimally, while A. polychromogenes increase the N total and decrease C/N ratio effectively. The combination of A. xylosoxidans and A. polychromogenes could increase P-availlable optimally.
METODE BIOSTIMULASI KOMPOS KACANG TANAH UNTUK BIOREMIDIASI TANAH TERCEMAR MINYAK BUMI Prasetyo Handrianto, ; Yuni Sri Rahayu, ; Yuliani,
Matematika dan Sains Vol 18, No 1 (2011)
Publisher : Matematika dan Sains

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The aims of research are to find the effect of the peanut compost in decreasing TPH value of soil polluted petroleum and to know the optimal compost concentration to increase the N concentration. This research used the group randomized design with one treatment, namely concentration of peanut compost. Results of research showed that concentration of N, P, K elements in peanut compost were 1.15 %, 0.10 % and 0.73 %, respectively. The peanut compost with concentration of 385 g/kg soil, 500 g/kg soil, and 636 g/kg soil gave effect to decrease TPH value and to increase the N elements in soil polluted petroleum.
Co-Authors Indriani Agustin Lady Diana Prasetyo Handrianto Yuni Sri Rahayu