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All Journal Jurnal Teknik Kimia USU

Setiaty Pandia

Departemen Teknik Kimia, Fakultas Teknik, Universitas Sumatera Utara

Author-ID : 4065500

Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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PEMBUATAN PEKTIN DARI KULIT MARKISA KUNING (Passiflora edulis flavicarpa) YANG DIMODIFIKASI Riyan Riski Sarandi; Yusro Alhusna; Setiaty Pandia
Jurnal Teknik Kimia USU Vol. 4 No. 4 (2015): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Passion fruit (Passiflora edulis flavicarpa) peel, a waste from yellow passion fruit industry could be utilized to extract pectin. The objectives of this study were to extract and modify yellow passion fruit pectin from HMP (High Metoxyl Pectin) to LMP (Low Metoxyl Pectin) and compare characteristic both of them. This research was conducted in pectin extraction and then modify pH of pectin used natrium hydroxide and chloric acid. The result of this research showed that modified pectin succeded to decrease degree of esterification from HMP to become LMP. Modified pectin had a brighter color or not too browny and no aroma. Function group analysis showed that shift in peaks in FTIR confimed a decrease of number methylated –COOH group. The resulting pectins also gelled by charge compensation with acid. It was found a new function group in modified pectin, which was of C=C (aromatic) group. The yield of pectin by extracting was 2,54 % and yiled of pectin after modifying was 94,73 %.

PENGARUH WAKTU FERMENTASI TERHADAP VOLUME GAS BIO DAN PENYISIHAN COD DENGAN METODE PERLAKUANAWAL MENGGUNAKAN KALIUMHIDROKSIDA(KOH) PADA ECENG GONDOK (Eichhornia crassipes) Setiaty Pandia; Amin Trisnawati
Jurnal Teknik Kimia USU Vol. 5 No. 2 (2016): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

The purpose of this study was to determine the effect of alkali pre-treatment methods on the quality and quantity of biogas. The study was doneby fermentation process the water hyacinth with KOH in a concentration of 6,7 M; 4 M;3 M; and 2,95 (M) with water in ratio hyacinth: water 70:30; 50:50; 30:70 and 100:0 (v/v) mixed with cow dung starter in an anaerobic digester batch system of 2,5 L capacity. In this study the highest biogas production at KOH concentration 4 M was in ratio of 50:50 (v/v)with yield biogas volume 449 mL and 86,52% of COD revomal, 92,42% of TSS removal. The lowest biogas production at KOH concentration 6,7 M was in ratio of 70:30 (v/v) with yield biogas volume 132 mL and 86,55% of COD removal and 88,65%of TSS removal.

PEMANFAATAN KULIT JENGKOL SEBAGAI ADSORBEN DALAM PENYERAPAN LOGAM Cd (II) PADA LIMBAH CAIR INDUSTRI PELAPISAN LOGAM Setiaty Pandia; Budi Warman
Jurnal Teknik Kimia USU Vol. 5 No. 4 (2016): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

The aim of this research is to study the effect of activation processes to iodine number of ngapi nut peel adsorbent and to study the optimum adsorbent mass to reduce metallic Cadmium (Cd) concentration in electroplating wastewater. Ngapi nut peel was cleaned and mashed to a size of 100 mesh of sieve tray and then activated using nitric acid (HNO3) 4 N with specific ratio ngapi nut peel : nitric acid while heated at specific activation temperature and duration. Adsorbent dried in oven at specific temperature and duration of drying. Adsorbent with optimum iodine number then used in batch adsorption that carried out by using variations of mass in 50 mL of wastewater. The results showed that the optimum ratio of ngapi nut peel : nitric acid is 20:1 mg/mL at activation temperature 90°C, duration of activation 120 minutes, drying temperature 110 °C and duration of drying 120 minutes with iodine number 634.50 mg/g. The optimum mass of adsorbent is 1 g with capacity of adsorbent 1,326 mg/g.

PENGARUH WAKTU FERMENTASI DAN KOMPOSISI LIMBAH ECENG GONDOK (Eichhornia crassipes) UNTUK MENGHASILKAN GAS BIO DENGAN METODE HIDROLISA BASA MENGGUNAKAN NATRIUM HIDROKSIDA (NaOH) Setiaty Pandia; Pri Hartini
Jurnal Teknik Kimia USU Vol. 6 No. 1 (2017): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Water hyacinth (Eichhornia crassipes) is a plant that become aquatic waste and its existence has not yet widelyused. The content of cellulose, hemicellulose, and lignin inside it can be used into biogas through fermentation process.The purpose of this research was to determine the effect of alkali pretreatment methods on the yield biogas volume and Total Suspended Solid (TSS) revomal percentage. The study was did by fermentation process the water hyacinth with NaOH concentration of 2,86; 3;4; and 6,67 (M) with water in ratio hyacinth:water 70:30; 50:50; 30:70 and 100:0 (v/v) mixed with cow dug starter in an anaerobic digester batch system of 2,5 L capacity. In this study the highest biogas production at NaOH concentration 6,67 M was in ratio of 70:30 (v/v) with yield biogas volume 506 mL and TSS revomal percentage of 93,23%. Minimum value of gasbio production concentration of NaOH 3M withwater hyacinth:water ratio 30:70 (v/v) generate yield biogas volume 158 mL and TSS revomal percentage of 81,48%.

PEMANFAATAN ADSORBEN DARI KULIT BUAH KAKAO (Theobroma cacao l.) UNTUK MENURUNKAN CHEMICAL OXYGEN DEMAND PADA PALM OIL MILL EFFLUENT Setiaty Pandia; Astri Devi Yunita Siahaan; Anita Tiurmaida Hutagalung
Jurnal Teknik Kimia USU Vol. 6 No. 3 (2017): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

This study was aimed to determine the effectiveness of cocoa peel as adsorbents to reduce the content of COD in POME (Palm Oil Mill Effluent). The study was initiated by modifying the adsorbent, where the cleansed and crushed cocoa peels with a size variation of 70-100 mesh, 100-120 mesh, dan ≥120 mesh were activated with 0.6 M HNO3 solution at 1:2, 1:4, and 1:6 of adsorbent : HNO3 ratio while heated at 80 ᵒC for 2 hours. The adsorption process was carried out using variation of adsorbent mass of 1 g, 1,5 g, and 2 g in 50 mL of Palm Oil Mill Effluent at pH 2 and 200 rpm stirring rate, and variation of contact time of 1, 2, 3, 4 , and 5 hours. The study results showed that particle size ≥120 mesh with adsorbent : HNO3 ratio 1:4 produced the highest iodine number of 596,684 mg/g. The best adsorbent mass was 1 g at 2 hours contact time with 56.79% removal percentage for COD. The appropriate kinetics model of the adsorption of COD was the pseudo-second order model with the correlation coefficient of 0.732.

PEMBUATAN ADSORBEN DARI KULIT BATANG JAMBU BIJI (Psidium guajava L.) UNTUK MENJERAP LOGAM TEMBAGA (Cu) DAN NIKEL (Ni) PADA LIMBAH CAIR INDUSTRI PELAPISAN LOGAM Setiaty Pandia; Muhammad Ferdiyansyah; Febri Maihendra
Jurnal Teknik Kimia USU Vol. 6 No. 4 (2017): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

This research aims to study the effect of adsorption time, adsorption temperature, pH, and the ratio of raw materials with nitric acid in the manufacture of bark guava adsorbent in reducing the metals content of copper (Cu) and nickel (Ni) in the metal wastewater industry. Materials used include, among others, industrial metal coating wastes, guava stem bark, nitric acid, and aquadest. Initially the bark of guava stalk was cleansed and mashed 70-80 size, then activated with 4 N nitric acid (HNO3) solution with a variation in the ratio of bark the guava : nitric acid is 1:1; 1:2; and 1;3 g/mL were heated at 80oC for 120 minutes. The adsorbent is then dried in the oven at 110oC for 120 minutes. Adsorbent with the highest iodine number analysis results was used in the adsorption process of Cu (II) Ni(II) metals, wherein the adsorbent massused was 2 grams in 150 ml of metallic industry liquid waste, 70 rpm stirrer speed, variation of adsorption times are 60, 90, and 120 minutes, variation of adsorption temperatures are 35oC, 45oC, and 55oC, and variation of adsorption pH are 2, 7, and 12. The result showed that the ratio of bark of guava stem: the best nitric acid was 1: 3 g/mL with iodine number of 313,020 mg/g. Based on Liquid Waste Quality Standard for Industrial Activity (KepMen LH 51/1995), the copper and nickel content in liquid waste should not exceed 3 mg/L and 3 mg/L for metal coating industry. From the results of adsorption process that has been done, got the optimum condition of adsorption of copper metal that is at 60 minutes, temperature 35oC, and pH 7 and obtained the efficiency of adsorption equal to 69,1540%, and nickel metal that is at 60 minutes, temperature 35oC, and pH 7and obtained the efficiency of adsorption equal to 75,1700%, where the result of adsorption the Cu2+ and Ni2+ metal ions are 2,8077 mg/L and 4,1100 mg/L.

PEMBUATAN PEKTIN DARI LIMBAH KULIT JERUK (Citrus sinensis) DENGAN METODE EKSTRAKSI GELOMBANG ULTRASONIK MENGGUNAKAN PELARUT ASAM SULFAT (H2SO4) Ayu Arimpi; Setiaty Pandia
Jurnal Teknik Kimia USU Vol. 8 No. 1 (2019): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Pectin can be utilized in various industries of making jelly, jam, gelling, thickener, stabilizer and emulsifier. In this study the extraction of pectin from orange peel (Citrus sinensis) using ultrasonic waves and sulfuric acid (H2SO4) was conducted to determine the effect of variation in settling time and concentration of the alcohol as the pectin filtrate precipitating material on the characteristics of the pectin produced. The study was carried out with 30 minutes extraction time, extraction temperature of 70 oC using H2SO4. Variations carried out were settling time for 14 hours, 16 hours, 18 hours and 20 hours, and concentration of the alcohol ; 65%, 75%, 85% and 95%. Characteristics of pectin produced with successive characteristics: yield ranged from 16.44%-22.44%; moisture content from 4.0-9.45%; ash content of 2.34%-5.54%; equivalent weight of 510.20-865.07 mg; methoxyl content of 7.35%-10.79%; and galacturonic content of 63.71%-95.74%. The 18-hour settling time with 95% ethanol produced the most yield with the best pectin characteristics that met IPPA (International Pectin Producers Association) standards.

Co-Authors Amin Trisnawati Anita Tiurmaida Hutagalung Astri Devi Yunita Siahaan Ayu Arimpi Budi Warman Febri Maihendra Muhammad Ferdiyansyah Pri Hartini Riyan Riski Sarandi Yusro Alhusna

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