Pebriani, Annisa Kurnia (2026) EFEKTIVITAS KARBON AKTIF DARI TONGKOL JAGUNG (Zea mays L) DALAM MENURUNKAN KONSENTRASI METILEN BIRU PADA AIR LIMBAH INDUSTRI TEKSTIL. Diploma thesis, Politeknik Negeri Sriwijaya.
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Abstract
Penelitian ini bertujuan mengidentifikasi karakteristik karbon aktif tongkol jagung, menentukan kondisi optimum adsorpsi metilen biru berdasarkan variasi massa adsorben dan waktu kontak, serta model isotermnya. Karbon aktif dibuat melalui karbonisasi (500°C, 2 jam) dan aktivasi NaOH 1 N, lalu diuji pada 50 mL limbah tekstil dengan variasi massa (2 gr dan 4 gr) serta waktu kontak (60–180 menit). Hasil karakteristik menunjukkan kadar air 8,82%, kadar abu 7,5%, dan daya serap iodin 1193,14 mg/g, yang seluruhnya memenuhi SNI 06-3730-1995. Kondisi optimum adsorpsi dicapai pada massa adsorben 2 gram dan waktu kontak 150 menit dengan efisiensi penyerapan tertinggi sebesar 98,62%. Proses adsorpsi secara konsisten mengikuti model isoterm Langmuir (R2 = 1), yang menunjukkan bahwa mekanisme penyerapan berlangsung secara homogen dan membentuk lapisan tunggal (monolayer) di permukaan adsorben.
| Item Type: | Thesis (Diploma) |
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| Uncontrolled Keywords: | Karbon aktif, tongkol jagung, adsorpsi, metilen biru, isoterm Langmuir |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Chemical Engineering > Undergraduate Theses |
| Depositing User: | Pustaka Teknik Kimia |
| Date Deposited: | 26 Aug 2026 01:41 |
| Last Modified: | 26 Aug 2026 01:41 |
| URI: | http://eprints.polsri.ac.id/id/eprint/23395 |
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