Article Per Year (5 Year)
p-Index From 2019 - 2024
0
P-Index
This Author published in this journals
All Journal Jurnal Teknik ITS IPTEK Journal of Proceedings Series
M. Rachimoellah
Institut Teknologi Sepuluh Nopember
Computer Science & IT Engineering

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Pembuatan Karbon Aktif Dari Arang Tempurung Kelapa Dengan Aktivator Zncl2 Dan Na2co3 Sebagai Adsorben Untuk Mengurangi Kadar Fenol Dalam Air Limbah Gilar S. Pambayun; Remigius Y.E. Yulianto; M. Rachimoellah; Endah M.M. Putri
Jurnal Teknik ITS Vol 2, No 1 (2013)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (689.507 KB) | DOI: 10.12962/j23373539.v2i1.2437

Abstract

Tujuan dari penelitian ini adalah membuat karbon aktif dari arang tempurung kelapa sesuai dengan SII No.0258 – 79 ; untuk mengetahui karateristik kadar air, kadar abu,  iodine number dan surface area karbon aktif dari arang tempurung kelapa ; untuk mempelajari pengaruh konsentrasi dan jenis aktivator terhadap efisiensi penurunan kandungan konsentrasi fenol (persen removal) menggunakan karbon aktif dari arang tempurung kelapa ; menentukan kapasitas optimum penyerapan fenol dengan karbon aktif dari arang tempurung kelapa. Berdasarkan hasil penelitian disimpulkan bahwa karbon aktif dapat dibuat dari arang tempurung kelapa dengan aktivasi kimia ZnCl2 dan Na2CO3 disertai pirolisis pada suhu 700 oC selama 4 jam. Karakteristik karbon aktif yang dihasilkan telah sesuai dengan SII No.0258–79, kadar air sebesar 0,382-1,619%, kadar abu 2,28-7,79%, iodine number 448,02-1599,72 mg/g, surface area 189,630-1900,69 m2/g. Semakin tinggi konsentrasi aktivator maka semakin tinggi persen removal dari fenol yang telah diadsorbsi oleh karbon aktif. Persen removal tertinggi didapat pada karbon aktif dengan zat aktivator Na2CO3 5% dengan persen removal sebesar 99,745%. Kapasitas optimum penyerapan fenol dengan karbon aktif dari arang tempurung kelapa terbaik didapat pada karbon aktif dengan zat aktivator Na2CO3 5% dengan kapasitas serapan sebesar 220,751 mg fenol/gram karbon aktif
Subcritical Water Extraction of Phenolic Compounds from Moringa Oleifera Leaf Siti Zullaikah; Irfan Saputra; Ghuzrina Prihandini; M. Rachimoellah
IPTEK Journal of Proceedings Series Vol 1, No 1 (2014): International Seminar on Applied Technology, Science, and Arts (APTECS) 2013
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2014i1.397

Abstract

Moringa oleifera leaf is a good source of phenolic compounds that are reported to exhibit antioxidant activity both in vitro and in vivo. This study investigated the extraction of phenolic compounds from Moringa oleifera leaf using subcritical water. Experiments were performed in a batch stainless steel reactor at temperature ranging from 100 to 300oC at residence time of 5 to 20 min. Subcritical water extraction resulted the highest yield of product, total phenolic compounds and antioxidant activity at temperature of 200oC at residence time of 15 minutes. The yield of product, total phenolic compounds and antioxidant activity obtained were 30.661%, 48.733 mg tannat acids/ g dry powder of extract and 45.863 mg ascorbic acid/L, respectively. Subcritical water at 200°C and 15 min might be a good substitute to organic solvents such as ethanol to obtain phenolic compounds from Moringa oleifera leaf.
An Efficient Method for the Production of Biodiesel from Rice Bran Siti Zullaikah; Yulia T. Rakhadima; M. Rachimoellah; Tri Widjaja; Sumarno Sumarno
IPTEK Journal of Proceedings Series Vol 1, No 1 (2014): International Seminar on Applied Technology, Science, and Arts (APTECS) 2013
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2014i1.321

Abstract

A modified in situ esterification was employed for the economic competitiveness of biodiesel production from rice bran.  The effects of methanol to rice bran ratio, acid catalysts, and reaction time on the biodiesel yield and purity were investigated. Biodiesel yield and purity of 17.99% and 67.04%, respectively, were obtained used acid catalyst (H2SO4) of 2.37%, ratio of methanol and rice bran of 15 (mL/g), and 5 h of reaction time.  Recovery of crude biodiesel obtained was 92.45%. Based on the proposed method, the production process of biodiesel could be simplified and improved; therefore, the production cost probably could be reduced further.
Co-Authors Endah M.M. Putri Ghuzrina Prihandini Gilar S. Pambayun Irfan Saputra Remigius Y.E. Yulianto Siti Zullaikah Sumarno Sumarno Tri Widjaja Yulia T. Rakhadima