Penggunaan Biokompos dalam Bioremediasi Lahan Tercemar Limbah Minyak Bumi

Barokah Aliyanta, La Sumarlin, Ahmad Mujab, Pusat Aplikasi, Teknologi Isotop, Dan Radiasi, Badan Tenaga, Nuklir Nasional, Pasar Jum'at, Jakarta Selatan, Program, Studi Kimia (+6 others)
2011 unpublished
Abstrak Penelitian ini dilakukan untuk mengetahui efektifitas biokompos, rumput gajah dan kelompok mikroba yang efektif dalam bioremediasi lahan tercemar minyak bumi yang dilakukan dalam skala laboratorium, dan bahan tambahan yang digunakan urea sebagai sumber nitrogen. Pada penelitian ini dilakukan berdasarkan rasio C/N yaitu 15, 10, dan 5. Parameter uji yang dilakukan untuk mengetahui kondisi optimal yang dicapai pada remediasi terdiri atas pH, kadar air, kadar abu, dan kemampuan ikat
more » ... ampuan ikat air/water holding capacity (WHC). Hasilnya menunjukan degradasi TPH (Total Petroleum Hidrokarbon) sebesar 91,15% dengan komposisi medium (100 g berat kering lumpur minyak bumi, 100 g berat kering biokompos, 9 g urea, rasio C/N = 5) menggunakan perlakuan dari kombinasi rumput gajah, mikroorganisme, urea dan biokompos selama 35 hari. Faktor lingkungan yang menghasilkan kondisi optimal ini dicapai pada remediasi diperoleh melalui kondisi awal pH 8,25; kadar air 49,97%; WHC 101,64%; dan kadar abu 63,76% dan kondisi akhir pH 6,25; kadar air 55,04%; kadar abu 73,39%; dan WHC 124,11%. Penambahan kompos dan urea dapat meningkatkan efisiensi degradasi TPH dan diperoleh hubungan positif antara jumlah penambahan kompos dan urea terhadap tingkat degradasi TPH. Abstract This research was conducted to determine the effectiveness of biocompost and elephant grass of rehabilitating oil polluted land using landfarming methods, in combination with the addition of urea as sources of nitrogen. This research was conducted based on the 15, 10, and 5 of C/N ratios, respectively. Test parameters needed to knowing the optimal condition in remediation were pH, water content, ash content, and water holding capacity (WHC). Results show the Total Petroleum Hydrocarbon (TPH) was degraded until 91,15% for 35 days. Under treatment of elephant grass, urea, biocompost combination within composition medium of (100 g dry mass soil polluted hydrocarbon, 100 g dry mass biocompost, 9 g fertilizer, and C/N ratio : 5) using combined treatment of elephant grass, microorganisme, fertilizer, and biocompost after 35 days. The environmental factor yielding this optimal remediation reached was obtained through initial condition of pH 8,25; water content 49,97%; WHC 101,64%; ash content 63,76% and final condition of pH 6,25; water content 55,04%; ash content 73,39%; and WHC 124,11%, respectively. The addition of compost and urea has increased the efficiency of TPH degradation and obtained positive relationship between addition amounts of compost and urea to the level of TPH degradation.
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