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All Journal CHEMPUBLISH JOURNAL Kinetika Quimica : Jurnal Kimia Sains dan Terapan
Ningsih, Aisyah Suci
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Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Materials Science & Nanotechnology

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PENGARUH RASIO CAIRAN PEMASAK (AA CHARGE) PADA PROSES PEMBUATAN PULP DARI KAYU SENGON (ALBIZIA FALCATARIA) TERHADAP KUALITAS PULP Supraptiah, Endang; Ningsih, Aisyah Suci; ., Sofiah
KINETIKA Vol. 5 No. 2 (2014): KINETIKA 01112014
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Sengon wood (Albizia falcataria) is chosen as an alternative raw material for the manufacture of pulp has physical and chemical characteristic that meet the standards of raw material for pulp. The most important factors that influence the process of the kraft pulping is the ratio of the cooking liquid (AA charge) which serves to degrade and dissolve so easy to separate lignin from cellulose, while still protecting carbohydrates from degradation so that the resulting yield and good physical strengt. The study began with the preparation of raw materials, cooking by using a variable charge AA 14%, 16%, 18%, 20% and 22%, pulp washing and sheet formation, as well as the analysis of the quality of the pulp. Cooking liquid ratio will affect the yield and quality of pulp, including kappa number, viscosity and brightness. The low use of cooking liquid causes the higher lignin content in pulp and produce wood that is not mature, so the higher the yield, kappa number and viscosity, but lower brightness. While conversely, the higher the cooking liquid use causes more fiber degraded.
PENYERAPAN LOGAM Pb DENGAN MENGGUNAKAN KARBON AKTIF DARI CANGKANG KEMIRI SEBAGAI ADSORBEN Supraptiah, Endang; Ningsih, Aisyah Suci; ., Fatria
KINETIKA Vol. 5 No. 1 (2014): KINETIKA 01032014
Publisher : Politeknik Negeri Sriwijaya

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Candlenut shell is a waste which usually burned, stacked or discarded,which are unfavorable to environment. This is condition be motivated to produced commercial product from this candlenut shells waste as activated carbon and aswell as solving as environment problems.This study aimed is to obtain the optimum conditions of hydrochloric acid activator to quality activated carbon and Pb metal adsorption capacity. This activated carbon has two variation process there are carbonization process used temperature 500oC for 1 hour and the activation process with variation concentration of hydrochloric acid there are 0,2M, 0,4M, 0,6M, 0,8M and 1M for 24 hours. The product of this research isshowing the best quality activated carbon from candlenut shells which has best characteristic or fit to SNI 06-3730-95 such as to Inherent Moisture rate 8,54-10,56%, ash content 1,10-2,48%, volatile matter 17,57-20,63% and fixed carbon 67,81-71,42%. The application of activated carbon from candlenut shell can reduce the Pb metal concentration from 3 ppm to 0 ppm with activator concentration 0,4M for contact time of 1 hour with adsorption content is 100% and adsorption capacity of activated carbon from candlenut shell using hydrochloric acid as adsorbent Pb metal is 0,15 mg/g.
PENGARUH VARIASI SUHU, RASIO MOL REAKTAN DAN PERSEN KATALIS TERHADAP METIL ESTER SULFONAT MENGGUNAKAN REAKTOR SULFONASI Amin, Jaksen M.; Manggala, Agus; Ningsih, Aisyah Suci; Hilmasari, Jenni; Aliza, Sintiya Nur; Al Kusari, Willy
KINETIKA Vol. 11 No. 1 (2020): KINETIKA 01032020
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Surfactants are generally produced from petroleum and natural gas derivatives while petroleum reserves are depleting and cannot be renewed. This has the potential to cause an energy crisis on a global scale in the future. To solve this problem, alternative renewable raw materials are needed that can help make surfactants that are environmentally friendly, namely raw materials sourced from vegetable oil. One of the anionic surfactants that can be made from plant materials and is renewable is Methyl ester sulfonate. The purpose of this study was to determine the effect of the mole ratio, temperature and percent of the catalyst and the duration of the sulfonation reaction using NaHSO3 reactants on the resulting MES. The production process of the MES surfactant is carried out by reacting the methyl ester with the sulfonation reagent in the form of NaHSO3 and CaO catalyst in the sulfonation reactor. The results showed that MES had the best characteristics with an optimum state in the ratio of 1: 1.5 mole ratio with 1% CaO catalyst and a temperature of
PEMANFAATAN SISA BAHAN PANGAN DALAM PEMBUATAN BIOPLASTIK Ayu, Selia Putri; Ningsih, Aisyah Suci
KINETIKA Vol. 11 No. 1 (2020): KINETIKA 01032020
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Bioplastic is a biopolymer plastic that can be degraded easily by microorganisms so it can be used as alternative replaced commercial plastic. Bioplastics continue to garner scientific, industrial, and consumer interest as the detrimental ecological effects of petroleumbased plastics are unveiled. Bioplastic terminology refers to a biodegradable petrochemical plastic or a plastic material obtained from natural biological resources (biosourced bioplastic). Studi ini menunjukkan bahwa bioplastik dari sumber alam yang berbeda dapat digunakan, baik secara individu maupun gabungan, dengan dan tanpa bahan tambahan. Perbedaan sifat-sifat ini akan memungkinkan bioplastik sesuai untuk berbagai aplikasi. Semua bioplastik yang dihasilkan dapat terurai secara hayati dan ramah lingkungan, sehingga menjadi pengganti yang baik plastik berbasis minyak bumi, dan cara yang mujarab untuk mengatasi masalah pencemaran plastik.
EFISIENSI TERMAL PRODUKSI STEAM DITINJAU DARI RASIO UDARA BAHAN BAKAR SOLAR PADA CROSS SECTION WATER TUBE BOILER Ningsih, Aisyah Suci; Syakdani, Adi; Rusnadi, Irawan; Oktaviani, Yustika; Veronica, Febri; Anisya, Jihan Triani
KINETIKA Vol. 12 No. 1 (2021): KINETIKA 01032021
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Cross Section Double Drum Water Tube Boiler is a steam boiler that is used to convert water into steam by heating, where the heat source comes from the combustion of fuel in the furnace. It is said that the Cross Section of the Double Drum Water Tube Boiler is because the tube arrangement in the boiler is made in the opposite direction to the drum, then this time the tool is made of a slope of 65º on the tube with the aim of reducing the force of gravity so that it will speed up the evaporation process, and has two drums. The fuel used in this study uses liquid fuel, namely diesel with the air-to-fuel ratio as a changing variable, while 15 liters of fuel and 75 kg of boiler feed water are fixed variables. The ratio of air to fuel used ranges from 15.78 to 18.16 . From the results of this study, the best response to the performance of the Cross Section Double Drum Water Tube Boiler is the air-to-fuel ratio of 17.57 ,where the boiler efficiency is 61.12%, of saturated steam and 67.18 % of superheated steam with a steam temperature of 151 ℃ and 229 ℃ , the steam pressure has reached the optimum pressure of 5 bar.
Perancangan Pengolahan Air Limbah Laboratorium Pemurnian Crude Palm Oil (CPO) di Politeknik Negeri Kampar Niati, Sri Murda; Supraptiah, Endang; Ningsih, Aisyah Suci; Cahya, Gemala
JURNAL QUIMICA Vol 5 No 2 (2023)
Publisher : Program Studi Kimia, Fakultas Sains dan Teknologi, Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jq.v5i2.9330

Abstract

Politeknik Kampar merupakan salah satu politeknik yang mempunyai laboratorium miniplan pengolahan CPO menjadi minyak goreng, biodisel dan sabun. Pada saat operasinya pengolahan ini menghasilkan limbah cair dan limbah padat. Limbah cair yang dikeluarkan oleh suatu sistem pengolahan harus dilakukan pengolahan sebelum dibuang kelingkungan. Berdasarkan percobaan yang dilakukan proses yang menghasilkan limbah adalah pada proses degumming dihasilkan air limbah sebesar 159 L per 1 kali proses dilakukan, dimana air limbah ini mengandung gum dan berwarna kuning. Pada proses netralisasi menghasilkan limbah padat yang mengandung soapstock sebesar 10,93 kg limbah per 1 kali proses dilakukan. Limbah padat ini dapat dijadikan bahan baku sabun dengan bilangan penyabunan sebesar 480,7 mgram KOH/1 gram zat uji. Air limbah yang dihasilkan dilakukan uji jartest di laboratorium menggunakan koagulan PAC (poly alumunium clorida) dan flokulan aqua clear. Berdasarkan percobaan uji jartest yang dilakukan didapat kualitas air hasil olahan sudah berada dibawah ambang batas lingkungan baik pH, warna maupun tingkat kekeruhan. Dosis ekonomis koagulan PAC adalah pada penambahan 60 g/L dan dosis aqua clear yang dibutuhkan adalah sebesar 1,2 g/L per 1 kali proses dilakukan. dilakukan pengecekan kadar COD pada air limbah, dari hasil laboratorium didapat kadar COD akhir sebesar 444,9280ppm dan efesiensi penurunan COD sebesar 63,41%. Berdasarkan hasil laboratorium dibuat perancangan unit-unit pengolahan limbah, didesain bak equalisasi, koagulasi, flokulasi dan sedimentasi. Pada penelitian ini perancangan dilakukan untuk bak sedimentasi yakni panjang 1,50m, lebar 3,20m dan tinggi 3,20m dan bak pembubuh dengan pertimbangan sudah memenuhi volume limbah cair yang diolah.
Effectiveness of Kepok Banana (Musa paradisiaca) Bread-Based Adsorbent for Fe(III) Removal Using HCl Activation: Freundlich and Langmuir Isotherm Models Silviyanti, Idha; Supraptiah, Endang; Niati, Sri Murda; Hajar, Ibnu; Ningsih, Aisyah Suci; Amalda, Feby Nia
Chempublish Journal Vol. 9 No. 1 (2025): Chempublish Journal
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v9i1.44926

Abstract

Activated carbon can be synthesized from lignocellulosic biomass, such as kepok banana (Musa paradisiaca) stems, which are an abundant agricultural waste rich in cellulose (~64%). In this study, kepok banana stems were utilized as a precursor to produce activated carbon using hydrochloric acid (HCl) as the chemical activating agent. The activation process employed HCl concentrations of 1.5, 2.0, 3.0, 5.0, and 7.0 N, with a carbonization temperature of 400 °C for 1 hour and an Fe adsorption contact time of 30 minutes. The resulting activated carbon was evaluated based on its physicochemical properties according to the Indonesian National Standard (SNI 06-3730-1995). The sample treated with 3.0 N HCl showed optimal characteristics, including moisture content of 2.34%, ash content of 0.28%, volatile matter content of 2.05%, and fixed carbon content of 95.33%. Its iodine number reached 1116.98 mg/g, and the Fe ion removal efficiency was 99.14%. FTIR spectroscopy confirmed the presence of functional groups typical of activated carbon—O–H, aromatic C=C, C–H, and C–O—suggesting good adsorption potential. Furthermore, adsorption behavior was analyzed using the Freundlich isotherm model, which describes multilayer adsorption on heterogeneous surfaces. The findings demonstrate that activated carbon derived from kepok banana stems is an effective, low-cost, and environmentally friendly adsorbent for iron removal, suitable for applications in water purification and wastewater treatment.
Co-Authors ., Fatria ., Sofiah Al Kusari, Willy Aliza, Sintiya Nur Amalda, Feby Nia Amin, Jaksen M. Anisya, Jihan Triani Ayu, Selia Putri Gemala Cahya Hilmasari, Jenni Ibnu Hajar Irawan Rusnadi Manggala, Agus Niati, Sri Murda Oktaviani, Yustika Silviyanti, Idha Supraptiah, Endang Syakdani, Adi Veronica, Febri