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Journal of Industrial Process and Chemical Engineering (JOICHE)
Published by Institut Teknologi Adhi Tama Surabaya
ISSN : -     EISSN : 28078543     DOI : https://doi.org/10.31284/j.joiche.2022.v2i2.3852
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering
Energi Proses Industri Kimia Material Maju Pengendalian Pencemaran Lingkungan Simulasi dan Pemodelan Savety engineering Pengendalian Kualitas
Arjuna Subject : Teknik Kimia (semua kategori) - Kimia Proses dan Teknologi
Articles 70 Documents
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KAJIAN PEMISAHAN MINYAK - LEMAK PADA LIMBAH BUATAN DENGAN MENGGUNAKAN TEKNOLOGI DISSOLVED AIR FLOTATIONS (DAF) Aghsoni, Fanan
Journal of Industrial Process and Chemical Engineering (JOICHE) Vol 4, No 1 (2024)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.joiche.2024.v4i1.6600

Abstract

An oil spill in seawater can pose a significant problem for the process of converting seawater into clean or drinking water. The separation of oil and fats must be carried out as an initial stage (pre-treatment) in the clean or drinking water treatment process. The Dissolved Air Flotation (DAF) system is an appropriate technology for removing oil and fats from raw water, utilizing aeration to create air bubbles in the water that lift the oil and fats to the surface for separation. Seawater characterization includes physical, chemical, and microbiological properties. The research variables in this study include initial oil concentrations (25 mg/L, 50 mg/L, and 100 mg/L), air supply pore sizes (0.5 mm, 1 mm, and 1.5 mm), air supply pressures (0.005 MPa, 0.01 MPa, and 0.015 MPa), and aeration times (30 minutes, 60 minutes, 90 minutes) in the DAF reactor to determine the effect of these variables on oil removal efficiency. Increasing the initial oil concentration leads to a higher pollutant load in the DAF flotation system, resulting in a decrease in the efficiency of the DAF process. On the other hand, smaller air supply pore diameters play a crucial role in increasing oil removal efficiency, as the reduction in pore size significantly impacts the formation of microbubble sizes, thereby providing a larger surface area to lift oil particles from the feed solution.
ANALISIS TINGKAT KENYAMANAN TERMAL MENGGUNAKAN METODE TEMPERATURE HUMIDITY INDEX SERTA KAITANNYA DENGAN KEBERADAAN RUANG TERBUKA HIJAU DI KOTA SURABAYA Astuti, Diah Novita
Journal of Industrial Process and Chemical Engineering (JOICHE) Vol 4, No 1 (2024)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.joiche.2024.v4i1.6599

Abstract

Comfort conditions based on climatology parameters can be considered the comfort level of population in an area. Development in Surabaya area over the past few years has inevitably led to a shift in the function of green land into new buildings, especially residential and industrial ones. This indicated an effect on the condition of thermal comfort due to an increase in surface temperature. Therefore, calculations are carried out to determine the thermal comfort index in Surabaya and spatial analysis to see its distribution. Remote sensing using Landsat imagery is carried out to determine the classification and distribution of vegetation, buildings and water bodies. With overall accuracy about 93%, this land cover of Landsat data is considered good enough to represent the current state of land cover in Surabaya. The results show that there has been a significant change in land cover in almost a decade (2013-2021). The comfort level is best seen at the beginning of the research year (2013) and the lowest one is seen in 2016. Based on these two data, it can be seen that there is a link between the decrease in the quality of the thermal comfort level and the availability of green open spaces. Several things affect the thermal comfort conditions in Surabaya, i.e. geographical conditions, global climate anomaly conditions and the availability of vegetation stands or green open spaces.
Kajian Penyerap Pencemaran: Studi perbandingan antara Taman Hutan Raya R. Soerjo Jawa Timur dan Tahura Lain di Indonesia Hamid, Abdul
Journal of Industrial Process and Chemical Engineering (JOICHE) Vol 4, No 1 (2024)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.joiche.2024.v4i1.7759

Abstract

Taman Hutan Raya (Tahura) merupakan kawasan konservasi penting dalam mendukung pelestarian lingkungan dan keanekaragaman hayati. Fungsi ekologi Tahura juga mencakup perannya dalam menyerap polusi udara melalui vegetasi penyerap polutan. Studi ini bertujuan untuk membandingkan komposisi vegetasi penyerap polusi yang terdapat di Tahura R. Soerjo, Jawa Timur, dengan beberapa Tahura lainnya di Indonesia, seperti Tahura Ir. H. Djuanda (Jawa Barat), Tahura Ngurah Rai (Bali), dan Tahura Bukit Barisan (Sumatera Utara). Kajian ini dilakukan melalui metode tinjauan literatur dari berbagai penelitian terdahulu. Hasil kajian menunjukkan bahwa meskipun terdapat spesies umum seperti pinus (Pinus merkusii) dan mahoni (Swietenia macrophylla), Tahura R. Soerjo memiliki keunikan dengan dominasi vegetasi montana dan sub-montana yang memiliki potensi tinggi sebagai penyerap polutan. Studi ini memberikan wawasan mengenai pentingnya optimalisasi pemilihan jenis tanaman dalam mendukung fungsi ekosistem Tahura sebagai paru-paru kota dan penyerap polusi udara.
Kajian Kerusakan Taman Hutan Raya (Tahura) di Indonesia melalui Pengendalian Pencemaran Lingkungan Hamid, Abdul
Journal of Industrial Process and Chemical Engineering (JOICHE) Vol 4, No 1 (2024)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.joiche.2024.v4i1.7760

Abstract

Forest Parks (Tahura) are vital conservation areas for the preservation of biodiversity and ecological functions in Indonesia. However, various human activities have caused significant damage to these areas. This study aims to assess the level of damage in several Tahura in Indonesia and evaluate the environmental pollution control strategies that have been implemented. The methods used include literature studies and secondary data analysis from various reliable sources. The results of the study indicate that damage in Tahura is caused by factors such as deforestation, illegal logging, and environmental pollution. Effective control strategies involve community participation, law enforcement, and ecosystem rehabilitation. An integrated approach is needed to ensure the sustainability of Tahura in Indonesia.
Pengaruh Rasio Asam Sitrat dan 4-carboxy-3-chlorobenzene boronic acid terhadap Quantum Yield dari Graphene Quantum Dots Permadi, Adi; Putri, Mutiara Wilson
Journal of Industrial Process and Chemical Engineering (JOICHE) Vol 4, No 2 (2024)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.joiche.2024.v4i2.7584

Abstract

This study investigates the effect of citric acid (CA) and 4-carboxyl-3-chlorobenzeneboronic acid (CBBA) ratio on the Quantum Yield (QY) of Graphene Quantum Dots (GQDs). The hydrothermal synthesis method was employed with various CA/CBBA molar ratios, and the optical properties were analyzed using UV-Vis and photoluminescence (PL) spectroscopy. The results show that increasing the CBBA ratio enhances fluorescence efficiency, with the highest QY of 5.075% obtained at a 1:5 ratio. The addition of CBBA improves surface passivation and reduces non-radiative recombination sites, thereby optimizing the photoluminescence properties. Furthermore, precursor ratio variation influences particle size and functional groups, affecting the solubility and stability of GQDs. These findings highlight the role of CBBA in controlling exciton recombination, making GQDs more efficient for optoelectronic, bioimaging, and biomedical applications. Further studies are needed to explore the long-term effects of CBBA doping on fluorescence stability
KAJIAN PENERAPAN SISTEM MANAJEMEN KESELAMATAN DAN KESEHATAN KERJA DI PT. SPINDO,Tbk., SURABAYA Wicaksono, Bintang Cahyoadi
Journal of Industrial Process and Chemical Engineering (JOICHE) Vol 4, No 2 (2024)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.joiche.2024.v4i2.6598

Abstract

Occupational Safety and Health Management System (SMK3) is a labor protection system in preventing and minimizing the risk of material and non-material losses, so that it can support effective and efficient performance improvement. In accordance with PP No. 50 of 2012, one way to prevent work accidents is through the implementation of the Occupational Safety and Health Management System (SMK3). In implementing SMK3, every company is required to carry out five things, namely determining K3 policies, K3 planning, implementing K3 plans, monitoring and evaluating K3 performance, and reviewing and improving SMK3 performance. Research at PT. Spindo, Tbk., is intended to assess the company's readiness to implement SMK3 in the technical aspect according to the standards of Government Regulation 50 of 2012. While the study on the technical aspect was carried out using the SMK3 audit checklist according to the standards of Government Regulation 50 of 2012. The results of the study concluded that in the technical aspect, the company's readiness in implementing SMK3 according to the standards of PP 50 of 2012 achieved a value of 72.8%, or is in the category of good implementation level.
PABRIK SODIUM SULFAT DEKAHIDRAT DARI SODIUM CHLORIDE DAN ASAM SULFAT DENGAN PROSES MANNHEIM Purwaningsih, Dian Yanuarita; Mulya, Jaya Hadi
Journal of Industrial Process and Chemical Engineering (JOICHE) Vol 4, No 2 (2024)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.joiche.2024.v4i2.7703

Abstract

At the end of 2019, the COVID-19 pandemic hit the world, which had several effects on various sectors, one of which made several industrial sectors suffer heavy losses and even bankruptcy. The industrial sector needs household goods, such as soap and detergent, among the most needed items during the Covid-19 pandemic. To produce these hygiene items, the industrial sector requires various raw materials, one of which is Sodium sulfate (Na2SO4). Sodium sulfate is processed using the Mannheim process through reaction, crystallization, and drying stages. The designer plans to build a plant with a capacity of 20,000 tons/year in the industrial area of Lamongan, East Java. The raw materials used consist of sulfuric acid and sodium chloride. The utility unit consists of a water supply unit, steam supply unit, power generation unit, fuel supply unit, and cooling supply unit. The company's business entity is a Limited Liability Company (PT) using a line and staff organizational structure with 150 employees. The employee work system is based on the division of working hours consisting of shift and non-shift employees. The researchers produced several results of economicanalysis: Fixed Capital Investment (FCI) value of Rp. 195,180,724,917, Working Capital Investment (WCI) value of Rp. 34,443,657,338, Total Cost Investment (TCI) value of Rp. 229,624,382. 255, then the Total Product Cost (TPC) value is Rp. 441,103,560,855, and the Total Sale (TS) value is Rp. 522,048,972,696, Internal Rate of Return (IRR) of 35.98%, Pay Out Time (POT) for 3.15 years, and Break-Even Point (BEP) value of 36.40%. Based on the above evaluation results, the Sodium sulfate decahydrate plant from Sulfuric acid and Sodium chloride by Mannheim process is feasible.
Pemodelan Perilaku Kelarutan Molekul Air terhadap Variasi Pelarut pada Permukaan CulnS2/ZnS Quantum Dots Menggunakan Pendekatan ab-initio berbasis Density Functional Theory Permadi, Adi
Journal of Industrial Process and Chemical Engineering (JOICHE) Vol 4, No 2 (2024)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.joiche.2024.v4i2.7583

Abstract

This study investigates the solubility behavior of water molecules on the surface of CuInS₂/ZnS Quantum Dots (QDs) in different solvents using an Ab Initio approach based on Density Functional Theory (DFT). The research evaluates the influence of solvent dielectric constant on surface potential energy and solute-solvent interaction energy. The study reveals that hydrogen bonding, dipole-dipole interactions, and van der Waals forces significantly affect QDs stability and size. The findings indicate that solvents with higher dielectric constants destabilize nanoparticles, leading to electron transfer between particles. Among the tested solvents, chloroform provides an optimal balance between solubility, stability, and band gap (~1.68 eV). These results contribute to a deeper understanding of solvent-mediated effects on QDs, essential for their application in optoelectronics and bio-imaging.
Pra Perancangan Pabrik Glucitol Dari Tepung Tapioka Dengan Proses Hidrogenasi Katalitik Purwaningsih, Dian Yanuarita
Journal of Industrial Process and Chemical Engineering (JOICHE) Vol 4, No 1 (2024)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.joiche.2024.v4i1.7704

Abstract

Glucitol is the result of glucose reduction by changing the aldehyde group to a hydroxyl group, hence the name sugar alcohol. Sugar substitute sweeteners have various requirements, namely having a sweet taste, not causing toxicity to the body, calorie, and can be produced in large capacities. The most relevant sugar substitute with these criteria is glucitol. Glucitol factory is planned to be established in Jombang Regency, East Java with a production capacity of 20,000 tons/year. The raw material used in this glucitol factory is using tapioca starch raw material with a catalytic hydrogenation process. In the manufacture of glucitol there are 2 important processes, namely, the first process converts strach into glucose or dextrose with supporting raw materials for amylase enzymes and glucoamylase enzymes in the main tool, namely the reactor. In the catalytic hydrogenation process glucose or dextrose is reacted with hydrogen gas at high temperature and pressure with the help of the addition of nickel raney catalyst. The resulting glucitol is then purified in the evaporator to produce 70% glucitol. In the design of the Glucitol factory requires a total capital investment of Rp. 197,294,444,028 The total production cost of this factory is Rp. 552,393,444,402 with annual sales of Rp. 800,000,000,000. From the economic analysis, BEP was obtained at 23.7% with POT for 2.122 years and IRR of 64.14%. In terms of engineering and economics, this plant is feasible to establish
PERENCANAAN INSTALASI PENGOLAHAN LUMPUR TINJA (IPLT) WARA II KOTA AMBON Anditiaman, Yuliana
Journal of Industrial Process and Chemical Engineering (JOICHE) Vol 4, No 2 (2024)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.joiche.2024.v4i2.6602

Abstract

The sewage sludge treatment system at IPLT WARA II, where the physical infrastructure is poorly maintained and management is not running optimally according to Standard Operating Procedures and technical specifications. With the passing years and an increasing population, the volume of sewage sludge predicted does not match the actual volume of sludge produced. The aim of this study is to evaluate the design of the Sludge Separation Chamber and Oxidation Ditch units in IPLT WARA II. The study found that the wastewater flow rate had increased from 100 m³/day to 225 m³/hour. In addition to the flow rate, the design and dimensions of the newly added units in IPLT WARA II were obtained, showing that their implementation is quite efficient with a removal rate of up to 95%. The SSC (Volume = 112 m³, P = 34 m, L = 5 m, Freeboard = 0.5 m), OD (Surface Area = 97 m²), and Clarifier (Volume = 29 m³) were identified. The addition of SSC and OD units as new management strategies ensures that the treatment quality meets environmental standards in accordance with sanitation facility regulations and the Environmental Protection and Management Law. Retribution arrangements have been implemented so that the community and septic tank service companies can make payments in accordance with the local regulation (PERDA).

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