PENGOLAHAN LINDI SEBAGAI PUPUK CAIR UNTUK MENDUKUNG PENGEMBANGAN TPA SAMPAH LESTARI
Keywords: effluent, leachate, liquid fertilizer
Abstract
A laboratory scale research to obtain environmentally safe effluent and liquid fertilizer from leachate from Final Waste Disposal Site in Galuga owned by Regional Government of Bogor City was conducted from July 2006 through to April 2007. The experiment was initiated by aerating the leachate in 4 difference aeration rates (0, 10, 30 and 70 liters/minute) followed by processing the sediment to product the liquid fertilizer. The experiment of production liquid fertilizer was carried out by adding lime with different dosage into sediment generated from processing by aerating at 70 liters/minute followed by centrifugation process or secher. Further, the liquid fertilizer generated from such experiment was applied to chilis planting (Capsicum annum). The research found that the processing conducted by aerating at the rate 70 liters/minute was the most effective in reducing pollutant from leachate. The addition of 1000 ppm CaO or Ca(OH)2 limes in sediment from aeration is the most effective in depositing the dissolved material compared to the addition of limes in other dosage. Liquid fertilizer generated through the addition of 1000 ppm CaO have the content of N = 375,83 ppm, P = 121,44 ppm, K = 948,11 ppm, Ca = 827,20 ppm, Mg = 959,50 ppm, S = 48,53 ppm, Cu = 8,23 ppm, Zn = 30,02 ppm, Mn = 230,57 ppm, Fe = 320,95 ppm, Pb = 10,34 ppm, Cd = 7,46 ppm and Cr = 2,05 ppm. The use of liquid fertilizer generated by adding 1000 ppm CaO was the most effective in enhancing vegetation growth and production of chili. The non essential elements (Pb, Cd and Cr) in fruits from vegetation given liquid fertilizer produced from such treatment did not exceed tolerable threshold.
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References
Amir, H. K., Aghili, F. & Sanaelostovar, A. (2009). Daily intake of heavy metal and nitrate through greenhouse cucumber and bell pepper consumption and potensial health risks for human. International Journal of Food Sciences and Nutrition. V(60), 199 208.
Davis & Masten. (2004). Principles of environment engineering and science. Michigan State University. USA: Mc Graw Hill. .
Dinas Kebersihan & Pertamanan (DKP) Pemerintah Kota Bogor. (2003). Upaya pengelolaan lingkungan dan upaya pemantauan lingkungan. Bogor.
Ditjen POM. (1989). Keputusan Ditjen Pengawasan Obat dan Makanan No. 03725/B/SK/VII/89 tentang Batas Maksimum Logam Berat pada Makanan.
Fardiaz, S. (1992). Polusi air & udara. Yogyakarta: Kanisius.
Garnasih, I. (2009). Studi pendahuluan potensi toksisitas & genotoksisitas air lindi sampah dari TPA Sarimukti Kabupaten Bandung terhadap tikus. Tesis Program Pascasarjana Institut Teknologi Bandung. Bandung.
Hardjowigeno, S. 1995. Ilmu tanah. Jakarta: Akademika Pressindo.
Lingga P. & Marsono. (2005). Petunjuk penggunaan pupuk. Jakarta: Penebar Swadaya.
Menteri Pertanian. (2003). Persyaratan teknis minimal dan metode uji pupuk an-organik padat dan cair. Diambil 29 April 2010, dari situs World Wide Web http://www.deptan.go.id/bsp/puk_pest/peraturan/LAMPIRAN%20II%20an-organik.htm
Purwendro, S. & Nurhidayat. (2008). Mengolah sampah untuk pupuk & pestisida organik. Jakarta: Penebar Swadaya.
Siregar, S.A. (2005). Instalasi pengolahan air limbah: Menuntaskan pengenalan alat-alat dan sistem pengolahan air limbah. Yogyakarta: Kanisius.
Waluyo, L. (2005). Mikrobiologi lingkungan. Malang: Universitas Muhammadiyah Malang.