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All Journal JURNAL KIMIA SAINS DAN APLIKASI Jurnal Teknik Kimia Briliant: Jurnal Riset dan Konseptual JMM (Jurnal Masyarakat Mandiri) JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Jurnal Abdi Insani Nusantara Science and Technology Proceedings International Journal Of Science, Technology & Management (IJSTM) International Journal of Eco-Innovation in Science and Engineering (IJEISE) International Journal of Community Service Sinergi Polmed : Jurnal Ilmiah Teknik Mesin Jurnal Indonesia Sosial Teknologi
Suprianti, Lilik
Program Studi Teknik Kimia, Universitas Pembangunan Nasional Veteran Jawa Timur
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Peningkatan Kualitas dan Produktifitas Sambal Kerang dengan Mesin Pelumat dan penggoreng Mekanik di Sentra Ikan Bulak Surabaya Triana, Nurul Widji; Suprihatin, Suprihatin; Suprianti, Lilik
JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Vol 4, No 2 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jpp-iptek.2020.v4i2.858

Abstract

Kerang merupakan salah satu hasil laut yang banyak terdapat di perairan Kenjeran, Surabaya. Kerang- kerang yang berukuran kecil dan kualitas rendah kurang laku di pasaran. Sehingga untuk meningkatkan nilai tambah, kerang kerang kecil tersebut diolah menjadi produk makanan seperti sambal kerang dan abon kerang.  UKM Bunda adalah kelompok usaha bersama yang bergerak di bidang pengolahan teripang dan kerang yang berlokasi di sentra pengolahan hasil laut kelurahan kedung cowek, kecamatan Bulak Surabaya. Walaupun banyak diminati wisatawan, namun produk olahan kerang dari UKM Bunda belum dapat memenuhi permintaan pasar karena proses produksi yang masih dilakukan secara konvensional. Peralatan yang dipakai masih sederhana sehingga proses produksi  memerlukan waktu yang lama serta produk yang kurang terjaga kualitasnya. Pada kegiatan pengabdian masyarakat ini  dilakukan mekanisasi dalam proses pembuatan sambal kerang dan abon kerang dengan mengaplikasikan hasil teknologi Tepat Guna (TTG) dari UPN Veteran Jawa timur berupa mesin pelumat(telah terdaftar di HaKI desain industri A-00201204059), dan mesin penggoreng mekanik (tersertifikasi HaKI IDD-00000938) dengan mitra UKM Bunda. Peningkatan kualitas Sumber Daya Manusia dan penguatan kelembagaan juga dilakukan untuk memberikan wawasan kepada pelaku UKM terhadap bisnis dan pemasaran. Dampak yang dirasakan dari kegiatan pengabdian masyarakat ini adalah adanya peningkatan produksi sambal kerang dari 5 kg/minggu  menjadi 25kg/minggu. Proses produksi  lebih higienis serta kualitas semakin terjaga.
KARBON AKTIF DARI BATUBARA LIGNITE DENGAN PROSES AKTIVASI MENGGUNAKAN HIDROGEN FLOURIDA Novananda, Ajie; Rahmawati, Ira; Sani, Sani; Astuti, Dwi Hery; Suprianti, Lilik
Jurnal Teknik Kimia Vol 15, No 1 (2020): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v15i1.2297

Abstract

Lignit merupakan jenis batu bara yang mengandung banyak pengotor dan memiliki nilai kalor relatif rendah sehingga tidak banyak dimanfaatkan untuk bahan bakar, tetapi mengandung senyawa karbon yang cukup tinggi sehingga mempunyai peluang untuk dimanfaatkan sebagai bahan pembuatan karbon aktif. Pada penelitiaan ini dilakukan sintesa lignit menjadi karbon aktif dengan menggunakan aktivator Hidrogen Florida (HF). Tujuan dari penelitian ini adalah untuk mengetahui pengaruh konsentrasi aktivator HF dan suhu aktivasi pada pembuatan karbon aktif dari batubara lignit. Proses sintesa lignit menjadi karbon aktif diawali dengan melakukan preparasi batubara melalui proses karbonasi pada temperatur 500oC selama 2 jam. Selanjutnya serbuk batu bara dihaluskan dan  diayak untuk diperoleh ukuran yang seragam 100 mesh. Serbuk batu bara direndam pada larutan HF dengan perbandingan 1:10. Konsentrasi larutan HF bervariasiasi sebesar: 2, 2,5, 3, 3,5, 4 % volume. Perendaman dilakukan selama 5 jam pada temperatur 30oC, kemudian larutan disaring dan residu batu bara diaktivasi menggunakan furnace dengan variabel temperatur 700; 750; 800; 850; 900 oC selama 2 jam. Hasil yang diperoleh menunjukkan bahwa karbon aktif terbaik didapatkan pada konsentrasi HF 4% dan suhu aktivasi 900oC dengan daya serap terhadap iodin (I2) sebesar 810,75 mg/g, kadar air 1,9992%, kadar zat terbang 0,192%, kadar abu 5,408% dan fixed carbon mencapai 92,401%.  DOI : https://doi.org/10.33005/jurnal_tekkim.v15i1.2297
Corrosion Inhibition of Carbon Steel Using Chitosan as an inhibitor in 3.5% NaCl Medium Lilik Suprianti; Dwi Hery Astuti; Sukamto; Khafid Ubay Ilyas; Ellyn Evina Ellys Simanjuntak
International Journal of Eco-Innovation in Science and Engineering Vol. 1 No. 02 (2020): IJEISE
Publisher : Engineering Faculty, University of Pembangunan Nasional Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v1i02.32

Abstract

Carbon steel is a metal that is widely used for the construction of industrial and marine applications. Hence, seawater is one of the corrosive mediums due to its Natrium Chloride (NaCl) content as a strong electrolyte. One method to control the corrosion rate is by adding the inhibitor. Chitosan has been chosen as inhibitor corrosion because of non-poisonous and green material. Corrosion inhibition of carbon steel in chitosan inhibitor presence in 3,5% NaCl medium was studied using potentiodynamic polarization technique. This study aims to understand the effect of temperature and inhibitor concentration on carbon steel's corrosion behavior. This study also determined adsorption constant value of chitosan on the carbon steel surface. The corrosion rate has been analyzed by using potentiodynamic polarization. Firstly, carbon steel is prepared by cutting them in cuboid shape by dimensions 4cmx 1cm x 3mm. Secondly, a 3.5 % sodium chloride solution is prepared by dilute NaCl crystal into demineralized water. The next step is inhibitor preparation by dissolve chitosan powder in the acid solution. The corrosion rate is analyzed in different temperatures, various from 30-70oC, and chitosan concentration varied from 0 to 250mg/l. The results showed that chitosan is a promising corrosion inhibitor in sodium chloride medium. The inhibition efficiency at 30oC reaches 84.92% with a chitosan concentration of 250 mg/L.
Peningkatan Kualitas dan Produktifitas Sambal Kerang dengan Mesin Pelumat dan penggoreng Mekanik di Sentra Ikan Bulak Surabaya Nurul Widji Triana; Suprihatin Suprihatin; Lilik Suprianti
JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Vol 4, No 2 (2020)
Publisher : LPPM ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jpp-iptek.2020.v4i2.858

Abstract

Kerang merupakan salah satu hasil laut yang banyak terdapat di perairan Kenjeran, Surabaya. Kerang- kerang yang berukuran kecil dan kualitas rendah kurang laku di pasaran. Sehingga untuk meningkatkan nilai tambah, kerang kerang kecil tersebut diolah menjadi produk makanan seperti sambal kerang dan abon kerang.  UKM Bunda adalah kelompok usaha bersama yang bergerak di bidang pengolahan teripang dan kerang yang berlokasi di sentra pengolahan hasil laut kelurahan kedung cowek, kecamatan Bulak Surabaya. Walaupun banyak diminati wisatawan, namun produk olahan kerang dari UKM Bunda belum dapat memenuhi permintaan pasar karena proses produksi yang masih dilakukan secara konvensional. Peralatan yang dipakai masih sederhana sehingga proses produksi  memerlukan waktu yang lama serta produk yang kurang terjaga kualitasnya. Pada kegiatan pengabdian masyarakat ini  dilakukan mekanisasi dalam proses pembuatan sambal kerang dan abon kerang dengan mengaplikasikan hasil teknologi Tepat Guna (TTG) dari UPN Veteran Jawa timur berupa mesin pelumat(telah terdaftar di HaKI desain industri A-00201204059), dan mesin penggoreng mekanik (tersertifikasi HaKI IDD-00000938) dengan mitra UKM Bunda. Peningkatan kualitas Sumber Daya Manusia dan penguatan kelembagaan juga dilakukan untuk memberikan wawasan kepada pelaku UKM terhadap bisnis dan pemasaran. Dampak yang dirasakan dari kegiatan pengabdian masyarakat ini adalah adanya peningkatan produksi sambal kerang dari 5 kg/minggu  menjadi 25kg/minggu. Proses produksi  lebih higienis serta kualitas semakin terjaga.
Corrosion Control of Metal Alloy Using Inhibitor Synergy: Phospate – Carbohydrazide Fachrul Nurcholis; Aditya Irfansyah; Isni Utami; Lilik Suprianti
Nusantara Science and Technology Proceedings 3rd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2756

Abstract

Stainless steel is a kind of metal alloy that is widely used in industrial equipment. The problem faced by all metals that come into contact with corrosive medium is corrosion. Corrosion or metal deterioration can not be avoided since it is a spontaneous reaction between the metal with its environment. One method to control the corrosion of metal alloy is by adding the inhibitor into the medium. The addition of inhibitors in synergy is discussed. The addition of a phosphate inhibitor as a film-forming role on the metal surface is assisted by the addition of carbohydrazide components in controlling dissolved oxygen levels in seawater. The addition of inhibitors in synergy is expected to increase the efficiency of the inhibitor’s performance in a single work. This research aims to determine the best composition for phosphate and carbohydrazide inhibitors due to the effect of synergy in controlling the corrosion rate of metal alloys in seawater. The synthetic seawater medium was the 3.5% NaCl dilution prepared by diluting the NaCl crystal into the demineralized water. The phosphate inhibitor was added into the medium with various compositions (100, 200, 300, 400, and 500 ppm). Then, the carbohydrazide was added into the medium with the multiple compositions 5, 7.5, 10 and 15. The corrosion rate measurement was done by using Electrochemical Impedance Spectroscopy Instrument. The Stainless steel sample was prepared by cutting the stainless steel plate with a size 1cm x 1 cm and a thickness of around 2- 3 mm. The measurement process was done by putting the specimen in the working electrode and dipping into the medium with and without the inhibitors. The results show that the addition of inhibitor effectively decreases the corrosion rate. The best result is obtained when the ratio between phosphate and carbohydrazide is 100:10 ppm, which reduces the corrosion rate from 0.40128 mpy to 0.008 mpy
UNJUK KERJA DAN EFISIENSI TURBIN UAP DAN GENERATOR (TG-65) PADA PEMBANGKIT LISTRIK UNIT SISTEM UTILITAS DEPARTEMEN PRODUKSI IIIA PT PETROKIMIA GRESIK Pingky Fantika Wulandari; Delfian Lutfiananda; Ketut Sumada; Lilik Suprianti
SINERGI POLMED: Jurnal Ilmiah Teknik Mesin Vol. 4 No. 1 (2023): Edisi Februari
Publisher : Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51510/sinergipolmed.v4i1.1036

Abstract

Power generation merupakan salah satu unit penting dalam sistem utilitas suatu pabrik. Power generation pada pabrik IIIA PT Petrokimia dijalankan menggunakan tenaga uap (steam). Salah satu komponen yang terdapat pada power generation unit yaitu turbin & generator. Untuk mengetahui perfoma dari turbin-generator diperlukan analisis efisiensi dari alat tersebut. Analisis ini dapat dilakukan menggunakan perhitungan yang diperoleh dari literatur dan data yang diperoleh dari lapangan. Berdasarkan hasil perhitungan analisis efisiensi didapatkan efisiensi turbin-generator tertinggi yaitu pada tanggal 24 November 2022 dengan efisiensi berturut-turut sebesar 91,5% % dan 90,1%.
Inhibition of Barium Sulfat Crystal Formation in a Batch Method Crystallizer in the Presence of Cu and Zn Novel Karaman; Hendi Giritama Wibowo; Ubaidillah Aqil; Jamari Jamari; A.P. Bayuseno; Lilik Suprianti
International Journal of Science, Technology & Management Vol. 4 No. 3 (2023): May 2023
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v4i3.824

Abstract

Deposits of barium sulfate are a common issue in the oil and gas industry. The presence of these crystals impacts oil and gas production, causing technical problems such as inhibiting flow rate, increasing pressure in the pipe, and causing the pipe to break and be damaged. The results of this study show the formation of barium sulfate (BaSO4) crystals with the batch crystallizer method at 300 °C under the influence of the stirring rotation speed (0 rpm, 120 rpm, 240 rpm, 360 rpm, 480 rpm) and the additive concentration (0 ppm, 5 ppm, 10 ppm, 15 ppm, 2atm). In this study, the BaSO4 crystallization experiment was performed in a glass beaker using a magnetic stirrer with a stirring rotation speed to react BaCL2 and Na2SO4. The results demonstrated that adding zinc chloride (ZnCl2) and copper (ii) chloride (CuCl2) additives reduced the mass of crystals formed. The amount of barium sulfate scale that forms can be affected by the rotational speed of the stirrer. According to SEM analysis, the crystal morphology of BaSO4 was orthorhombic, indicating that this crystal shape was typical of barite crystals. While XRD analysis confirmed the formation of barium sulfate (barite) crystals, it also demonstrated that the crystals formed were solid barite crystals.
Corrosion Inhibition Effect of the Essential Oil of Dried and Fresh Crystal Seedless Guava Leaves (Psidium guajava) in Acid Medium Lilik Suprianti; Nove Kartika Erliyanti; Caecilia Pujiastuti
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 3 No. 1 (2022): IJEISE
Publisher : International Journal of Eco-Innovation in Science and Engineering (IJEISE)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research studied the corrosion inhibition activities of the essential oil of crystal seedless guava leaves (Psidium guajava) in an acid medium. The essential oil (EO) was extracted from the different treatments of raw materials (fresh and dried leaves) using the microwave hydrodistillation method with a power of 600 Watt. Water was used as the solvent, with the ratio of feed to solvent (w/v) 1:7. The extraction duration was over 3 hours. The extraction process was done at atmospheric pressure and 100oC. Different raw material treatments result in different yields, where the highest yield was obtained from the dried leave, with the value reaching 1.08%. The essential oil chemical compound was determined by GC-MS analysis. The main component obtained were caryophyllene (44.98%) and Caryophyllene oxide (14.96%). The essential oil was applied as a corrosion inhibitor for carbon steel in a 1 M Hydrochloric acid (HCl) medium. The inhibition efficiency (IE) was 67% at a concentration of 0.3g/L, while the fresh leaves essential oil was only 63%. The dried leave EO performs a higher anti-corrosion effect than the fresh leaves EO. These results show crystal seedless guava leaves' essential oil has anti-corrosion activities on carbon steel in an acid medium.
The Synthesis and Characterization of A New Composite Material Ca-Mg-NH₄-PO₄ Dolomite-Based for Effective Multinutrient Fertilizer in Plant Growth Noni Aulia; Vica Brilliany Sanjaya; Ketut Sumada; Lilik Suprianti
Jurnal Kimia Sains dan Aplikasi Vol 27, No 11 (2024): Volume 27 Issue 11 Year 2024
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.27.11.531-537

Abstract

The rapid expansion of Indonesia's agricultural sector has led to a surge in fertilizer demand. Dolomite lime shows potential as a promising alternative material to enhance fertilizer quality. This study aims to synthesize and characterize a Ca-Mg-NH4-PO4 composite using dolomite as a precursor through precipitation. The synthesis was successfully achieved through several stages, beginning with dolomite preparation, dissolution in 5N phosphoric acid, and subsequent precipitation with ammonium hydroxide at pH 8, 30°C, with a stirring speed of 450 rpm. The resulting composite was analyzed using various analytical techniques to evaluate its structural, morphological, and elemental compositions. X-Ray Diffraction (XRD) results indicated the formation of struvite crystals at positions 2θ = 20.828°, 30.539°, 33.234°, brushite crystals at position 2θ = 11.650°, and impurity compounds that appeared during the synthesis process. Impurities affecting crystal purity were detected but could be minimized through washing. Scanning Electron Microscopy (SEM) analysis revealed a monoclinic crystal morphology with particle sizes ranging from 4.32 μm to 579 nm. X-Ray Fluorescence (XRF) and Energy Dispersive X-Ray (EDX) analysis verified the presence of Ca, Mg, NH₄, and PO₄ components in the composite. Fourier-Transform Infrared Spectroscopy (FTIR) analysis showed that the composite has P-O-C functional groups at 949 cm⁻¹, 972 cm⁻¹, and 1027 cm⁻¹, and N-H functional groups at 1466 cm⁻¹. Overall, this Ca-Mg-NH₄-PO₄ composite derived from dolomite demonstrates promising characteristics as a multi-nutrient fertilizer, offering a high-quality option to support sustainable agricultural practices.
Legal Assistance For Micro, Small And Medium Enterprises Of Taro Chips In Tambakan Village,Blitar Regency, East Java Indonesia Hervina Puspitosari; Lilik Suprianti; Alfian Chandra Ayuswantana
International Journal Of Community Service Vol. 1 No. 2 (2021): August 2021 (Indonesia - Malaysia)
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijcs.v1i2.32

Abstract

The importance of community empowerment and assistance in improving the quality of Human Resources, including infrastructure facilities to support business activities. MSMEs are a great opportunity to develop businesses, especially during the Covid 19 pandemic where there are many layoffs or a decrease in labor wages. Creative ideas, as well as expertise and skill, are very important in developing MSMEs. Chips are very practical because they are dry so they are more durable and easy to serve anytime. Chips are one type of snack product that is widely consumed and favored by the community so that it becomes a great opportunity in developing a taro chips business, one of which has great potential in earning income and improving the welfare of the people of Tambakan village, Blitar Regency. Through legality assistance activities, it is hoped that the community can start processing Home Industry Food Production Permits (PIRT). The legality of taro chips SMEs business actors can certainly increase their productivity because consumers feel safe with the products they consume so that it fosters consumer confidence which in turn can increase consumer purchasing power and is expected to be marketed outside the region. The taro chips product developed by partners that were previously only marketed in local villages with permits and existing brands is expected to continue to grow and increase the income of the local village community
Co-Authors A.P. Bayuseno Aditya Irfansyah Alfian Chandra Ayuswantana Astuti, Dwi Hery Ayuswantana, Alfian Chandra Bambang Wahyudi Bayuseno, A. P. Billah, Mu’tasim Caecilia Pujiastuti Chandra Ayuswantana, Alfian Delfian Lutfiananda Dyah Suci Perwitasari, Dyah Suci Ellyn Evina Ellys Simanjuntak Erliyanti, Nove Kartika Fachrul Nurcholis Fariana, N. Hendi Giritama Wibowo Hervina Puspitosari Hervina Puspitosari, Hervina Ira Rahmawati ISNI UTAMI J. Jamari Jariyah Jariyah Jariyah Karaman, N. Ketut Sumada Ketut Sumada Caecillia Pujiastuti Khafid Ubay Ilyas Maulida, R. S. Mustofa, Arya Noni Aulia Novananda, Ajie Nove Kartika Erliyanti Novel Karaman Nufus, Wahyu Qur'ani Nuraini, Adila Silmi Perwitasari, Rida Pingky Fantika Wulandari Pradhani, Fastha Aulia Pudji W, Endang Pujiastuti, Caecilia Reda Rizal Rida Perwita Sari SANI SANI Sukamto Suprihatin Suprihatin Suprihatin Suprihatin Susilowati, Fifit Trianna, Nurul Widji Ubaidillah Aqil Vica Brilliany Sanjaya