Jaya, Danang and Widayati, Tunjung Wahyu and Stustika, Refina Yuni and Suwardi, Halim Nur Aiz (2020) Peningkatkan Kualitas Tailing Batubara Dengan Metode Flotasi Menggunakan Biosurfaktan dari Lerak (Sapindusrarak De Candole). EKSERGI, 17 (-). pp. 20-27. ISSN 1410-394
|
Text
Peningkatan kulitas Tailing ....pdf Download (4MB) | Preview |
Abstract
Limbah dari pcnambangan batubara yang bercampur dengan sisa hasil pencucian batubara yang dinamakan natubara Tailing (C/) mempunyai nilai kalor rendah dan kandungan sulfur scrta abu yang tinggi Untuk mc'ningkatkan kualitasnya dcngan mcningkatkan nilai dan untul mcngurangi rcnccmaran lingkungan dcngan mcnurunkan kadar sulfur dan abunva. maka batubara haruc dtpisahknn dati pcnuotornva tersebut salah satu caranva denuan flotasi Tujuan utama pcnclitian adalah meningkatkan kualitas limbah batubara (CT), dengan menaikkan nilai kalornya (mcnurunkan kandungan sulfur. abu. dan pcngotor lainnya) memakai tnctodc flotasi mcnggunakan Ictak (Saptndusrarak IA' Candote) sebagai surfaktan. Dari penclttian ini didapatkan kondisi optimum. yailu pada ukuran partikel •80/4100 mesh, kondisi di pH 6. nilni intornya meningkat dari mtllnemtita 3210.171 kalori/gr menjadi $035.022 kaloritgr. Landungan sulfur mcnurun hingga kondisi optimum mencapai 2026.08 dan Ladat abu menurun dan 34.61 0,' mcryadl 33"'. Dari hasil penelillan tersebut diperolch bah',sa buah Lcrak berpotcnsi scbagai surfaktan untuk meningkatkan kualitas Batubara secan flotasi Kata Kunci leak (biosurfaktan). flotasi'. sulfur. niJai kalor fror•n mining that is mixed with the wacte of the coal washing product called coals tailing (CT) has a tow calorific value. also a high sulfur. and ash content, To upgzdc Its quality by increastng its calonfic value and to reduce environmental pollution by reducing sulfur and its ashes. the coal must be cleaned from its impurities. one of which is by a flot2tion method ne main objective of the research is to improve the quality of coals tailing (CT) by increas:ng its calorific value (reducing the content Of sulfur, ash. and other impurities) by the flotation method, and using lerak (&rpmdusrarak De Candole) as the surfactant This research shows that optimal conditions were obtained. at a particle si7ß of -80 / 100 mesh and upaating conditions pi i value increased initially 3230.171 cal/g to S 035.622 cal/gr. the sulfur content decreased according to thc optimum ccndiooa reached 2026.31 mgm-g. and the ash content decreased from to 33.90/0. These results indica:e that the Lerak acts as a surfactant to improve the quality of coals tailing (CT) 'by the flotation methcd Key' words: tailing, leak (biosurfactant); flotation; sulphur, calorific value
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | leak (biosurfaktan). flotasi'. sulfur. niJai kalor, tailing, leak (biosurfactant); flotation; sulphur, calorific value |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Chemistry |
| Depositing User: | Ir.,MT Tunjung Wahyu Widayati |
| Date Deposited: | 21 May 2021 10:56 |
| Last Modified: | 21 May 2021 10:56 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/25527 |
Actions (login required)
 |
View Item |