PENGARUH BAKTERI BACILLUS SUBTILIS TERHADAP KEKUATAN BATU BATA MENGGUNAKAN LUMPUR LIMBAH IPA

Authors

  • Amanda Syasya Billah Universitas Balikpapan
  • Andi Marini Indriani Universitas Balikpapan
  • Gunaedy Utomo Universitas Balikpapan

DOI:

https://doi.org/10.31961/gradasi.v7i2.1437

Keywords:

Lumpur Limbah IPA, Batu Bata, Bakteri Bacillus Subtilis, Kuat Tekan

Abstract

Lumpur Limbah IPA mengandung bahan kimia yang dapat menimbulkan pencemaran pada sungai. Untuk mengurangi pencemaran, lumpur limbah IPA dapat dimanfaatkan menjadi bahan pembuatan batu bata. Selain itu pada penelitian ini dalam pembuatan batu bata tidak dibakar agar tidak menimbulkan polusi udara. Batu bata yang dibuat tanpa dibakar umumnya menggunakan semen dalam campuran tanah liat. Semen sendiri dalam proses pembuatannya dapat menimbulkan limbah. Salah satu upaya untuk menghindari pencemaran adalah menggunakan bakteri Bacillus subtilis yang ramah lingkungan untuk meningkatkan kekuatan dari batu bata tanpa bakar. Tujuan dari penelitian ini untuk menguji pengaruh bakteri Bacillus subtilis terhadap kekuatan batu bata. Pada penelitian ini menggunakan tanah liat dan campuran lumpur limbah IPA sebesar 15% dari berat tanah liat. Untuk perkuatannya ditambahkan larutan bakteri sebesar 2%, 4%, dan 6% dari berat batu bata dengan umur kultur bakteri 4 hari.  Kemudian dari hasil pengujian terhadap batu bata yang telah diperam selama 28 hari, kuat tekan batu bata dengan larutan bakteri 6% meningkat 59% menjadi 32,04 Kg/Cm2 dibandingkan dengan batu bata tanpa perkuatan bakteri sebesar 20,11 Kg/Cm2 Penelitian ini membuktikan potensi penggunaan bakteri Bacillus subtilis dalam meningkatkan kekuatan batu bata.

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Published

2023-12-31

Issue

Vol. 7 No. 2 (2023): Jurnal Gradasi Teknik Sipil - Desember 2023

Section

Articles

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Copyright (c) 2023 Amanda Syasya Billah, Andi Marini Indriani, Gunaedy Utomo

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