Article Per Year (5 Year)
p-Index From 2020 - 2025
1.431
P-Index
This Author published in this journals
All Journal IPTEK The Journal of Engineering Indonesian Journal of Chemistry Sewagati
Agus Surono
Departemen Teknik Kimia Industri Institut Teknologi Sepuluh Nopember Surabaya
Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Public Health Social Sciences Other

Published : 7 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 7 Documents
Search

 1 
21 Bar Yoshimin Boiler Maintenance with Controlling Residual Phosphate Afan Hamzah; Agung Subaykto; Agus Surono
IPTEK The Journal of Engineering Vol 6, No 2 (2020)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v6i3.a8117

Abstract

Boiler as the steam generator is usually utilized as a turbine drive and other industrial processes. Boiler needs good treatment and surveillance to keep its best performance. Boiler water (BW) and boiler feed water (BFW) quality control is essential in boiler maintenance since it preserves boiler from crust, corrosion, and carry over, moreover, it also prevents boiler pipe to break. Boiler maintenance in sugar refinery factory is carried out by controlling the quality of BFW, Chemical injection (inner maintenance) and blowdown of boiler water. BFW mineral content (SiO2 , total hardness) is maintained as small as possible using a softener (cation resin) or demineralization unit (cation and anion resin). Chemical injection is performed by the addition of soda in order to control the pH of boiler water. Phosphate addition aims to tie up total hardness level which is caused by concentration process of water boiler and slipped of hard water from BFW. Blowdown process has purpose to reduce crust and corrosion caused by mineral concentrate inside boiler. The experiment was conducted by controlling pH of BFW from 7.5-8.5, maximum total hardness at 3 ppm, maximum SiO2  concentration at 3 ppm and maximum Total Dissolve Solid (TDS) at 100 ppm while BW was controlled its pH at 10.5-11, maximum total hardness at 20 ppm, maximum SiO2  concentration at 50 ppm, maximum Total Dissolve Solid (TDS) at 2000 ppm, and residual phosphate ion between 4 – 10 ppm. The experiment time was adjusted as a milled day or about for 140 days. The result of the experiment showed that the treatment had a good impact on the condition of the boiler drum pipe.
Hydroxyapatite Based Material: Natural Resources, Synthesis Methods, 3D Print Filament Fabrication, and Filament Filler Lulu Sekar Taji; Deden Eko Wiyono; Achmad Dwitama Karisma; Agus Surono; Eva Oktavia Ningrum
IPTEK The Journal of Engineering Vol 8, No 1 (2022)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v8i1.a12830

Abstract

Hydroxyapatite is a biomaterial that has been recognized in terms of hard tissue engineering due to its similarity in composition to bioapatite. Moreover, abundant resources and diverse synthesis methods make hydroxyapatite easy to produce. The application in terms of 3D print-based network engineering is also being intensively explored due to hydroxyapatite scaffold fabrication process flexibility. In this review, various hydroxyapatite from natural sources, synthesis methods, hydroxyapatite-based 3D print filament fabrication techniques, as well as fillers used in the production of filaments are discussed.
Flocculation Performance of Industrial Sugarcane Juice by Acrylamide-Based Anionic Flocculant Eva Oktavia Ningrum; Agung Subyakto; Wirawan Ciptonugroho; Shania Lorensa; Devianti Anggraini Ramadhani; Agus Surono
Indonesian Journal of Chemistry Vol 23, No 1 (2023)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.73150

Abstract

Despite the widespread use of ionic polymer flocculants in sugar refineries, there is still insufficient knowledge on the relationship between the polymer properties and the efficiency of flocculation. This paper describes the performance of poly(sodium acrylate-co-acrylamide) (poly(SA-co-AAm)) as an anionic flocculant in the flocculation–coagulation of sugarcane juice from the sugar factory Gempolkrep PTPN X Mojokerto. Poly(SA-co-AAm) was successfully prepared via free radical polymerization of sodium acrylate and acrylamide with respective molar ratios of 40:60, 50:50, and 60:40, and compared with the commercial flocculant Accofloc. It was found that the mud height of the sugarcane decreased with increasing SA:AAm ratio. However, mud height increase was observed with further increasing SA:AAm ratio. Furthermore, increasing the flocculant dosage did not induce any significant change in the mud height and pH. The total dissolved solids (TDS) significantly decreased when the ratio of sodium acrylate:acrylamide was changed from 40:60 to 50:50, whereas a further change to 60:40 increased the TDS value again. It is also noticed that the tendency of turbidity is consistent with the TDS value. These results demonstrate that poly(SA-co-AAm) is a feasible alternative to the commercial flocculant owing to its good flocculation–coagulation performance with an optimum SA:AAm ratio of 50:50.
Pelatihan Peningkatan Kompetensi Guru-Guru SMK Jurusan Keteknik Kimiaan Se-Jawa Timur dalam Bidang Pengolahan Limbah Cair Saidah Altway; Karenina Anisya Pratiwi; Mochammad Zayyan Difa Fadhillah; Daril Ridho Zuchrillah; Soeprijanto; Elly Agustiani; Danawati Hari Prajitno; Agus Surono; Lily Pudjiastuti; Orchidea Rachmaniah
Sewagati Vol 5 No 1 (2021)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1243.612 KB)

Abstract

Tujuan dari pengabdian masyarakat ini yaitu peningkatan kemampuan Guru Pengajar jurusan Keteknik Kimiaan se-Jawa Timur dalam bidang pengolahan limbah cair untuk mendukung kegiatan belajar-mengajar dalam bidang teknik kimia. Workshop ini dimaksudkan untuk memberi bekal mendasar dengan memberikan pemahaman ilmu dan perhitungan terkait bidang keteknikkimiaan sehingga menjadi acuan saat melakukan praktek dan meningkatkan kemampuan secara praktikal. Hal ini diharapkan dapat mendukung merealisasikan misi SMK jurusan Keteknik Kimiaan di Jawa Timur untuk menghasilkan tenaga kerja yang profesional sesuai dengan tuntutan dunia usaha/industri. Kegiatan peningkatan kemampuan sumber daya guru pengajar teknik kimia di SMK Jawa Timur tidak bisa dilakukan sekaligus atau bahkan hanya beberapa jam atau beberapa hari saja, namun kegiatan tersebut harus diberikan secara mendasar, bertahap dan terencana. Pada tahap ini, sesuai dengan pembicaraan dan kesepakatan dengan pihak mitra yang merupakan pengguna langsung kegiatan ini, peningkatan kemampuan yang diberikan berupa Pendalaman Teori dan Praktek Pengolahan Limbah Cair. Program pelatihan guru-guru jurusan Keteknik Kimiaan dilakukan dalam bentuk Daring sebagai bentuk pengabdian kepada masyarakat yang dilakukan oleh dosen-dosen Departemen Teknik Kimia Industri Fakultas Vokasi –ITS dengan total jam pelatihan adalah 32 jam, mengingat kondisi pandemi Covid-19 saat ini yang tidak memungkinkan untuk mengadakan pelatihan secara tatap muka (offline/Luring).
Effect of Steam Delignification and Bleaching Process on Pineapple Leaf Fiber as Textile Raw Material Warlinda Eka Triastuti; Suprapto Suprapto; Agus Surono; Mochammad Zayyan Difa Fadhillah; Regita Syahra Ramadhan; Sunia Rahma Cahyaning Tyas; Hanifah Fauziyah Zahrah
IPTEK The Journal of Engineering Vol 9, No 2 (2023)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v9i2.a17325

Abstract

Pineapple is a local commodity in Indonesia that is widely cultivated. The part of the pineapple plant that is mostly used is only the fruit part, while the other plant parts are discarded and become waste. Pineapple leaves contain high fiber content of cellulose, lignin, and hemicellulose, so it is very potential if used as an alternative textile raw material. The quality of pineapple leaf fiber can be improved by going through a delignification process using an alkaline solvent with the appropriate concentration and time. This research  determine the effect of delignification of pineapple leaf fiber with a solution of Sodium Hydroxide (NaOH), Hydrogen Peroxide (H2O2) and water (H2O) on tensile strength, lignin content and Scanning Electron Microscope (SEM). This research consist of six stages including delignification using 3% NaOH and 3% H2O2, washing, neutralization, preservation, and analysis of pineapple leaf fiber products. The results obtained are pineapple leaf fiber lignin test after delignification and bleaching, the best lignin results are steam delignification at 80°C with 3% NaOH solution and bleaching solution using NaOCl solution obtained 21% lignin content with a tensile strength test of  0.263 kgf/mm2. SEM analysis also showed that there was a loss of material from the fiber surface which indicated that there was degradation due to the addition of bleaching solution. This proves that alkaline treatment can also cause discoloration of natural fibers due to the removal of natural dyes in natural fibers.
Characterization of Hydroxyapatite From Kupang Shells and Its Synthesis with Polycaprolactone for 3D Printing Filament Achmad Ferdiansyah Pradana Putra; Eva Oktavia Ningrum; Elsabella Adiguna; Muhammad Garin; Rafi Rajfan Hanif; Agus Surono
IPTEK The Journal of Engineering Vol 9, No 2 (2023)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v9i2.a16864

Abstract

The number of deaths or fatalities due to accidents in Indonesia is increasing. In addition, traffic accidents can cause serious injuries such as damage to the skull. The bone implantation technique currently used is an autograft, but this technique has some limitations. This limitation of autograft can be overwhelmed with synthetic bone implants, one of which uses a mixture of Polycaprolactone (PCL) and Hydroxyapatite (HAp). A combination of HAp and PCL is recommended because the two materials complement each other's weaknesses and can increase elasticity and quality to produce suitable filaments for 3D printing processes. This study used hydroxyapatite from Kupang Shells by calcination and precipitation methods. Then do the test XRF, XRD, FTIR, and SEM to determine the quality. The results showed that HAp synthesized from Kupang Shells had potential characteristics as bone implants. Next, two methods were used to mix PCL with HAp as a 3D printing filament for bone implants: the dry and wet methods. After that, it is analyzed with SEM and Mechanical Strength. The results of the SEM test of HAp particles in the wet method have more even distribution and a smoother surface than in the dry method. The impact is visible on the filament's mechanical test, which shows better results in the wet method.
Pelatihan Peningkatan Kompetensi Guru-Guru SMK Jurusan Keteknik Kimiaan se-Jawa Timur dalam Bidang Unit Operasi Ektraksi Lailatul Qomariyah; Daril Ridho Zuchrillah; Saidah Altway; Danawati Hari Prajitno; Agus Surono; Orchidea Rachmaniah; Irfan Ramadhitya; Ahmad Nezard Dhiaulhaq
Sewagati Vol 7 No 5 (2023)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v7i5.566

Abstract

Guru sebagai tenaga pendidik memiliki kompetensi pedagogi dan profesional dalam menjalankan tugasnya, Guru Sekolah Menengah Kejuruan (SMK) jurusan keteknik kimiaan diharapkan dapat mengembangakn strategi pembelajaran untuk meningkatkan kompetensi profesionalnya. Namun banyak guru SMK jurusan keteknik kimiaan memiliki latar belakang pendidikan keguruan atau sains murni, sehingga kompetensi yang dimiliki belum paripurna. Oleh karena itu, tim pengabdian kepada masyarakat yang terdiri dari dosen Departemen Teknik Kimia Industri dan Teknik Kimia, serta tenaga praktisi dari Industri melaksanakan kegiatan berupa pelatihan peningkatan kompetensi guru-guru SMK jurusan Keteknik Kimiaan se-Jawa Timur bidang unit operasi ekstraksi. Kegiatan pelatihan tersebut telah dilaksanakan secara daring pada tanggal 8 September hingga 24 November 2021 menggunakan aplikasi Zoom. Peserta pelatihan mencapai 120 peserta dengan 35 SMK yang terdaftar. Peserta mengalami kenaikan kompetensi setelah mengikuti pelatihan daring dengan pemateri dari tim dosen Departemen Teknik Kimia Industri dan juga membuat laporan praktikum yang telah disedikan. Metode yang digunakan salah satunya adalah tugas aktualisasi berupa membuat video best practice praktikum ekstraksi sederhana dengan bahan yang ada di sekitar lingkungan sekolah masing-masing, terdapat 24 video yang dapat ditonton di Youtube channel Departemen Teknik Kimia Industri ITS.
Co-Authors Achmad Dwitama Karisma Achmad Ferdiansyah Pradana Putra Adi Soeprijanto Afan Hamzah, Afan Agung Subaykto Agung Subyakto Agustiani, Elly Ahmad Nezard Dhiaulhaq Altway, Saidah Danawati Hari Prajitno Deden Eko Wiyono Devianti Anggraini Ramadhani Elsabella Adiguna Hanifah Fauziyah Zahrah Irfan Ramadhitya Karenina Anisya Pratiwi Karenina Anisya Pratiwi Lailatul Qomariyah Lily Pudjiastuti, Lily Lulu Sekar Taji Mochammad Zayyan Difa Fadhillah Mochammad Zayyan Difa Fadhillah Mochammad Zayyan Difa Fadhillah Muhammad Garin Rachmaniah, Orchidea Rafi Rajfan Hanif Regita Syahra Ramadhan Shania Lorensa Sunia Rahma Cahyaning Tyas Suprapto Suprapto Triastuti, Warlinda Eka Wirawan Ciptonugroho Zuchrillah, Daril Ridho