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Pemanfaatan limbah padat tapioka
  (onggok) sebagai bahan perekat
dalam pembuatan briket arang dari
arang bekas sebagai energi artenatif
   di kabupaten Lampung Tengah
Latar Belakang dan Masalah
Sumber energi alternatif yang dapat diperbaharui di Indonesia relatif lebih banyak

Onggok memiliki kandungan karbohidrat cukup tinggi sekitar 63,30 – 67,93%.
Onggok halus jika dipanaskan akan membentuk gelatin lem yang menyerupai kanji
yang dipanaskan. Karena berbentuk lem ini, maka onggok bisa digunakan
sebagai bahan perekat .


Karakteristik bahan baku perekatan untuk pembuatan briket adalah
sebagai berikut :

 Memiliki gaya kohesi yang baik bila dicampur dengan semikokas atau
  batu bara.

Mudah terbakar dan tidak berasap.

 Mudah didapat dalam jumlah banyak dan murah harganya.

Tidak mengeluarkan bau, tidak beracun dan tidak berbahaya
briket adalah gumpalan yang terbuat dari bahan lunak yang
dikeraskan. Sedangkan briket bioarang adalah gumpalan-
gumpalan atau batangan-batangan aranga yang terbuat dari
bioarang (bahan lunak).


Faktor-faktor yang mempengaruhisifat briket arang adalah
berat jenis bahan bakar atau berat jenis serbuk arang,
kehalusan serbuk, suhu karbonisasi, dan tekanan
pengempaan. Selain itu, pencampuran formula dengan
briket juga mempengaruhi sifat briket.
Bahan Pengikat

1. Pengikat anorganik     semen, aspal, lempung, natrium silikat.

2. Pengikat organik       kanji, tar, amilum, molase dan parafin
Bahan dan Alat
Bahan

1. Onggok kering         = ±50 gram
2. Arang bekas           = 1000 gram
3. Air                   = ± 500 ml


Alat :

1. Ember bekas
2. Sendok semen
3. Cetakan dari bambu atau plastik
4. Tempat untuk memjemur
Cara Kerja
Diagram Alir Pembuatan arang briket Onggok
       Onggok + air                        Dipanaskan sambil di aduk




      Masukan Onggok ke dalam arang               Aduk rata




        Cetak dan jemur         Briket arang           Penggunaan
Terima Kasih

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OPTIMASI LIMBAH PADAT

  • 1. Pemanfaatan limbah padat tapioka (onggok) sebagai bahan perekat dalam pembuatan briket arang dari arang bekas sebagai energi artenatif di kabupaten Lampung Tengah
  • 2. Latar Belakang dan Masalah Sumber energi alternatif yang dapat diperbaharui di Indonesia relatif lebih banyak Onggok memiliki kandungan karbohidrat cukup tinggi sekitar 63,30 – 67,93%. Onggok halus jika dipanaskan akan membentuk gelatin lem yang menyerupai kanji yang dipanaskan. Karena berbentuk lem ini, maka onggok bisa digunakan sebagai bahan perekat . Karakteristik bahan baku perekatan untuk pembuatan briket adalah sebagai berikut :  Memiliki gaya kohesi yang baik bila dicampur dengan semikokas atau batu bara. Mudah terbakar dan tidak berasap.  Mudah didapat dalam jumlah banyak dan murah harganya. Tidak mengeluarkan bau, tidak beracun dan tidak berbahaya
  • 3. briket adalah gumpalan yang terbuat dari bahan lunak yang dikeraskan. Sedangkan briket bioarang adalah gumpalan- gumpalan atau batangan-batangan aranga yang terbuat dari bioarang (bahan lunak). Faktor-faktor yang mempengaruhisifat briket arang adalah berat jenis bahan bakar atau berat jenis serbuk arang, kehalusan serbuk, suhu karbonisasi, dan tekanan pengempaan. Selain itu, pencampuran formula dengan briket juga mempengaruhi sifat briket. Bahan Pengikat 1. Pengikat anorganik semen, aspal, lempung, natrium silikat. 2. Pengikat organik kanji, tar, amilum, molase dan parafin
  • 4. Bahan dan Alat Bahan 1. Onggok kering = ±50 gram 2. Arang bekas = 1000 gram 3. Air = ± 500 ml Alat : 1. Ember bekas 2. Sendok semen 3. Cetakan dari bambu atau plastik 4. Tempat untuk memjemur
  • 5. Cara Kerja Diagram Alir Pembuatan arang briket Onggok Onggok + air Dipanaskan sambil di aduk Masukan Onggok ke dalam arang Aduk rata Cetak dan jemur Briket arang Penggunaan