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All Journal Sainteks: Jurnal Sain dan Teknik
Kenny Kencanawati
Universitas Insan Cendekia Mandiri
Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering

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Journal : Sainteks: Jurnal Sain dan Teknik

 1 
Sintesis Nitroselulosa Dari Serat Rami (Boechmerianivea) Menggunakan Trietilamin Riza Rizkiah; Kenny Kencanawati; Ahmad Rosidin; Lingga Wibowo
Sainteks: Jurnal Sain dan Teknik Vol 3 No 1 (2021): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v3i1.231

Abstract

Nitrocellulose is cellulose that is titrated into an ester polymer which can be used as a major component in several types of ammunition and explosives and other materials. Hemp (Boehmeria nivea) is a type of fiber plant that is rich in cellulose and thrives in Indonesia. Until now, the need for nitrocellulose in Indonesia is still imported, even though there is a lot of potential for cellulose that can be exploited, one of which is by synthesizing nitrocellulose from the hemp plant. One of the many uses of nitrocellulose derivatives, one of which is propellant. The propellant is the fuel or power source of a rocket engine. Nitrocellulose that can be used for propellants is nitrocellulose with levels between 11-13.3% nitrogen. This study aims to produce nitrocellulose in levels that meet the standards for making propellants. The study was carried out with a cellulose activation procedure using 20% ​​sodium hydroxide and 1 ml of triethylamine per gram of cellulose. Cellulose nitration was carried out using sulfuric acid and nitric acid with the composition of A (1: 1), B (2: 1) and C (3: 1) which were refluxed for 3 hours. Nitrogen determination was carried out using the Kjeldahl method. The results showed that from 3 samples A, B, and C, nitrogen levels were obtained respectively 12.62%, 13.23%, and 12.97%. This shows that the nitrocellulose from the hemp plant (Boehmeria nivea) can be used for propellants. Keywords: Hemp, nitrocellulose, nitration, triethylamine, propellant
Penurunan Bilangan Peroksida Dan Asam Lemak Bebas Pada Minyak Jelantah Menggunakan Serbuk Mahkota Dewa Mutiara Putri Utami Susanto; Kenny Kencanawati; Dwi Tia Septiani; Sani Nurahayu
Sainteks: Jurnal Sain dan Teknik Vol 2 No 2 (2020): September
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v2i2.265

Abstract

The study used mahkota dewa as adsorben to decrease of the peroxide number and free fatty acids on the used cooking oil with immersion variations for 2 days dan 3 days and also concentration variations of mahkota dewa 5 % w/v, 10 % w/v, and 20 % w/v. The results of the peroxide analysis test still exceed the required number of SNI namely 10 meq O2/kg and the results of the free fatty acid analysis test in the sample with immersion and stirring time for 2 days and 3 days the concentration of mahkota dewa 20 % w/v has met the SNI, which is 1.04 % and 0.91%.
Utilization of Sludge from Textile Wastewater Treatment Plants as Raw Material for Iron Coagulant Galu Murdikaningrum; Kenny Kencanawati; Bagus R Ramdhani; Rizal Ramdani
Sainteks: Jurnal Sain dan Teknik Vol 4 No 2 (2022): September
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v4i2.454

Abstract

Treatment of liquid waste using iron coagulant produces a by-product in the form of sludge which requires large handling costs. To reduce environmental pollution and sludge treatment costs, the sludge will be used as raw material for the manufacture of iron coagulant. This study aims to determine whether the sludge from textile WWTP can be used as raw material for iron coagulant. To determine the effectiveness of coagulants made from sludge, this study will compare the results of the coagulation-flocculation process using commercial iron coagulants and iron coagulants made from sludge as well as mixed coagulants with ratios of commercial iron coagulants to iron coagulants made from sludge of 70%, 60%, 50%, 40%, and 30%. The water quality resulting from the coagulation-flocculation process was indicated by pH, color turbidity, Total Dissolved Solid (TDS) and Total Suspended Solid (TSS). The results showed that the water quality of the coagulation-flocculation process was worse when mixed coagulant was used with a smaller ratio of commercial iron coagulant to iron coagulant made from sludge. A mixture of commercial iron coagulant and iron coagulant made from sludge that meets the quality standard for the TSS parameter is a mixed coagulant with a v/v ratio of 70%, while those less than 70% do not meet the quality standard.
Co-Authors Ahmad Rosidin Bagus R Ramdhani Dwi Tia Septiani Galu Murdikaningrum Galu Murdikaningrum Lingga Wibowo Mutiara Putri Utami Susanto Riza Rizkiah Rizal Ramdani Sani Nurahayu