PEMISAHAN KOMPONEN PADAT DAN KOMPONEN CAIR DIGESTATE

Rizki Ramadhani Siregar, 0714071060 (2014) PEMISAHAN KOMPONEN PADAT DAN KOMPONEN CAIR DIGESTATE. Fakultas Pertanian, Universitas Lampung.

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ABSTRACT.pdf

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COVER DALAM.pdf

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LEMBAR PERSETUJUAN.pdf

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LEMBAR PENGESAHAN.pdf

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LEMBAR PERNYATAAN.pdf

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RIWAYAT HIDUP.pdf

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persembahan.pdf

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PRAKATA.pdf

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DAFTAR GAMBAR.pdf

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Abstrak (Berisi Bastraknya saja, Judul dan Nama Tidak Boleh di Masukan)

Limbah ternak sapi dapat dimanfaatkan untuk memproduksi biogas yang dapat digunakan sebagai energi alternatif dan dapat mengurangi efek rumah kaca. Hasil samping buangan digester biogas (digestate) ini berwujud lumpur yang menyulitkan dalam pengemasan dan pengangkutan sehingga perlu dipisahkan menjadi bagian padat dan bagian cair. Penelitian ini bertujuan memisahkan komponen padat dan cair digestate. Penelitian dilakukan di Laboratorium Rekayasa Sumber Daya Air dan Lahan, Jurusan Teknik Pertanian, UNILA. Pengujian dilakukan menggunakan metode pengendapan, penyaringan (filtrasi), dan pemerasan (pressing). Parameter yang diamati meliputi total solid dari digestate, fraksi padat dan cair setelah pemisahan, dan kinerja alat pemisah. Hasil penelitian menunjukkan bahwa digestate memiliki kandungan total solid 9,77% dan air 90,23%. Komponen padat memiliki kandungan N 0,02%, P 2,89 ppm dan K 466,01 ppm, sedangkan komponen cair mengandung N 0,38%, P 161,65 ppm dan K 937,51 ppm. Penelitian juga mengungkapkan bahwa metode pengendapan dan penyaringan tidak efektif dan tidak efisien dalam pemisahan komponen padat dan cair digestate. Pemisahan digestate menggunakan metode pengendapan memerlukan waktu yang sangat lama. Pengendapan selama 6 bulan dapat mengendapkan 5,15% dari total solid 9,7%. Pemisahan menggunakan filtrasi tidak berhasil dilakukan karena filter segera tersumbat. Metode pemisahan mekanis menggunakan alat pres mampu memisahkan komponen padat dan cair digestate secara efektif. Komponen padat dan cair digestate berhasil dipisahkan dengan perbandingan 64,7% : 33,8% (cair : padat) dengan persentase kehilangan 1,5%. Kata kunci : digestate, pengendapan, penyaringan, dan pemerasan Cattle manure can be used to produce biogas which can be utilized as an alternative energy and to reduce the greenhouse effect. Byproduct of biogas digester effluent (digestate) form slurry mud which made it so difficult for packaging and transport that needs to be separated into a solid part and the liquid portion. This study aimed at separating the solid and liquid components of digestate. The study was conducted at the Water and Land Resources Engineering Lab, Department of Agriculture Engineering, the University of Lampung. Experiment was carried out using three methods, namely precipitation (sedimentation), filtration, and mechanical pressing. Parameters to be observed included total solid, solid and liquid fractions after separation, and performance of the separator. Results showed that digestate has a total solid content of 9.77% and 90.23% water. Solid component contained 0.02% N, P 2.89 ppm, and K 466.01 ppm; while the liquid component contained 0.38% N, P and K 937.51 161.65 ppm ppm. The study also revealed that the sedimentation and filtration methods were ineffective for separation of solid and liquid components of digestate. Digestate separation using precipitation method requires a very long time. Precipitation for 6 months precipitated 5,15% out of the 9.7% total solid. Separation using a filtration was not successful because the filter is clogged soon. Mechanical separation method using a press was capable of separating solid and liquid digestate components effectively. Solid components and liquid digestate successfully separated with a ratio of 64.7%: 33.8% (liquid: solid) with the percentage loss of 1.5%. Keywords : digestate, sedimentation, filtration, and pressing

Jenis Karya Akhir: Skripsi
Subyek:
Program Studi: Fakultas Pertanian dan Pascasarjana > Prodi Teknik Pertanian
Pengguna Deposit: 1353896 . Digilib
Date Deposited: 31 Dec 2014 06:19
Terakhir diubah: 31 Dec 2014 06:19
URI: http://digilib.unila.ac.id/id/eprint/6292

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