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Hairul Huda
Universitas Mulawarman
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

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Studi Kinetika Adsorbsi Nilai Besi pada Air Sumur Menggunakan Karbon Aktif dari Ampas Kopi Huda, Hairul; Ardi, Zulminadan; Johansyah, Adam Ari
Jurnal IPTEK Vol 19, No 2 (2015)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2015.v19i2.9

Abstract

Kandungan besi (Fe) di dalam air sumur dapat menimbulkan gangguan kesehatan, bau yang kurang enak, menyebabkan warna kuning pada dinding bak kamar mandi serta bercak-bercak kuning pada pakaian. Salah satu cara untuk menurunkan kandungan besi (Fe) yaitu dengan teknik adsorbsi dengan menggunakan karbon aktif dari ampas kopi. Pembuatan karbon aktif ampas kopi terdiri atas proses preparasi sampel, karbonisasi, aktivasi dengan HCl 0,1 M, pencucian, dan pengayakan. Karbon aktif ampas kopi dengan lama perendaman HCl 0,1 M selama 48 jam, suhu karbonisasi 400 ºC selama 90 menit, serta pengayakan telah memenuhi standar mutu kualitas karbon aktif menurut SNI 06-3730-1995 dengan kadar air 11,89%, kadar abu 9,2%, rendemen 62,06% dan daya serap iod 761,4 mg/g. Karbon aktif  yang telah telah memenuhi standar kualitas ini dapat menurunkan kandungan besi di air hingga mencapai 0,060 ppm dari kandungan besi awal 13,652 ppm dengan efisiensi 99,56% dari waktu kontak terbaik yaitu 24 menit serta memiliki nilai daya serap adsorpsi maksimum sebesar 0,929 mg/gram dengan konstanta Langmuir 1,000. Penentuan orde dilakukan dengan metode regresi linear  menggunakan persamaan orde nol, satu dan dua. Orde reaksi terjadi pada orde 1.
Studi Kinetika Adsorbsi Nilai Besi pada Air Sumur Menggunakan Karbon Aktif dari Ampas Kopi Hairul Huda; Zulminadan Ardi; Adam Ari Johansyah
Jurnal IPTEK Vol 19, No 2 (2015)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2015.v19i2.9

Abstract

Kandungan besi (Fe) di dalam air sumur dapat menimbulkan gangguan kesehatan, bau yang kurang enak, menyebabkan warna kuning pada dinding bak kamar mandi serta bercak-bercak kuning pada pakaian. Salah satu cara untuk menurunkan kandungan besi (Fe) yaitu dengan teknik adsorbsi dengan menggunakan karbon aktif dari ampas kopi. Pembuatan karbon aktif ampas kopi terdiri atas proses preparasi sampel, karbonisasi, aktivasi dengan HCl 0,1 M, pencucian, dan pengayakan. Karbon aktif ampas kopi dengan lama perendaman HCl 0,1 M selama 48 jam, suhu karbonisasi 400 ºC selama 90 menit, serta pengayakan telah memenuhi standar mutu kualitas karbon aktif menurut SNI 06-3730-1995 dengan kadar air 11,89%, kadar abu 9,2%, rendemen 62,06% dan daya serap iod 761,4 mg/g. Karbon aktif  yang telah telah memenuhi standar kualitas ini dapat menurunkan kandungan besi di air hingga mencapai 0,060 ppm dari kandungan besi awal 13,652 ppm dengan efisiensi 99,56% dari waktu kontak terbaik yaitu 24 menit serta memiliki nilai daya serap adsorpsi maksimum sebesar 0,929 mg/gram dengan konstanta Langmuir 1,000. Penentuan orde dilakukan dengan metode regresi linear  menggunakan persamaan orde nol, satu dan dua. Orde reaksi terjadi pada orde 1.
PREDICTION ANALYSIS OF FOULING MODEL ON HEAT EXCHANGER IN THE CRUDE OIL REFINERY Hairul Huda; Renanto Renanto; Totok Ruki Biyanto; Rif'an Fathoni; Tantra Diwa Larasati
Jurnal Chemurgy Vol 6, No 1 (2022): Jurnal Chemurgy-Juni 2022
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/cmg.v6i1.7672

Abstract

Fouling mainly occurs in the oil industry. Fouling is an unwanted deposit in HE (heat exchanger). Reliable fouling models are scarce, although empirical and theoretical models have been proposed to describe fouling in heat exchangers. The general models of empirical fouling used are linear, falling rate, and asymptotic. The research methodology begins with the acquisition and use of operational fouling data, which is then followed by the use of an asymptotic fouling model and ends with calculating the thickness of fouling in all HE. The object of this research study is all HE in the crude oil refinery HEN (heat exchanger network). The aim of this research is to use the asymptotic fouling model and get the fouling thickness. The fouling resistance from time to time increases, but in the end, it tends to be stationary, where for the final value, the highest fouling resistance is in HE-10, namely 14.8E-03 (m2°C/W), and the lowest value is fouling resistance at HE- 01 is 1.27E-03 (m2°C/W). The thickness of HE fouling in asymptotic conditions indicates that HE undergoes the same deposition process as suppression.Keywords: fouling, heat exchanger, asymptotic, crude oil refinery, heat exchanger network
POTENTIAL FOR BIOGAS DEVELOPMENT FROM SEGIRI MARKET WASTE IN SAMARINDA CITY, EAST KALIMANTAN Edhi Sarwono; Budi Nining Widarti; Aji Ery Burhandenny; Didit Suprihanto; Hairul Huda; Dhea Yolanda
Jurnal Chemurgy Vol 6, No 1 (2022): Jurnal Chemurgy-Juni 2022
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/cmg.v6i1.7802

Abstract

The Segiri Market waste has the potential to cause sources of disease, unpleasant odors, and interfere with aesthetics.  This study objectives are to estimate waste generation, potential volume and quality of biogas, as well as the potential for energy produced. The implementation of the procedure for sampling waste generation and composition in accordance with SNI 19-3964-1994 for 8 consecutive days.  The projected waste generation is based on the number of active traders and market capacity for five years. This study implements experimental method using 120 L volume using a ratio of 1:1 for chopped market garbage and cow rumen fluid.  The parameters are temperature, pH, biogas volume, and volatile solid values. The average volume and weight of waste generation in 2021 is 55.69 m3/day or 19,906.60 kg/day. The estimated biogas material harvested from the waste is 50.57 m3/day. This number is comprised of organic waste and inorganic waste with a total of 97.67% and 2.33% consecutively. The volume of biogas produced for 35 days is 156.45 mL, which equivalent to 1.05 kWh/day of electrical energy. The pH is in the range of 4.79 - 6.3, and the temperature is within 29.4oC - 31.9oC. Biogas can burn in the third to fifth weeks with a blue flame color. The estimated waste generation until 2025 reaches 61.31 m³/day which equivalent to 1.16 kWh /day of electrical energy. Keywords: Biogas, Market Waste, Tradisional Market, Waste Generation, Renewable Energy
Oil Refinery Heat Exchanger Network Cleaning Scheduling Strategy with Unit Cleanability Consideration Hairul Huda; Renanto Handogo; Totok Ruki Biyanto; Wei Wu; Vincentius Surya Kurnia Adi
ASEAN Journal of Chemical Engineering Vol 20, No 1 (2020)
Publisher : Department of Chemical Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ajche.51880

Abstract

Heat exchanger networks (HENs) play an important role in the chemical industries. Unfortunately, fouling is inevitable in heat exchangers operation. Therefore, the optimal cleaning procedure is required to restore heat exchangers' performance periodically. A systematic cleaning scheduling strategy for the heat exchanger network in an oil refinery is proposed in this work. There are 11 operating heat exchangers in an oil refinery to be reviewed. Different cleaning decision scenarios based on the overall heat transfer coefficient are explored for optimal cleaning schedule performance. The daily number of exchangers available to be cleaned i.e., the unit cleanability, is investigated while minimizing the energy consumption and the additional heat requirement due to the offline heat exchanger under cleaning procedure. The HEN performance and the energy-saving from the cleaning procedures are benchmarked with the uncleaned HEN. The results indicate that the cleaning procedure significantly increases the HEN performance and simultaneously reduces the heat requirement if compared to the untreated HEN benchmark. The possible conflicting situation is discussed when some heat exchangers are waiting to be cleaned due to the unit cleanability restriction, which allows the overall heat transfer coefficient to be below the allowed limit. Therefore, nonconflicting cleaning scheduling is also addressed in this work by relaxing the unit cleanability limit. Furthermore, the optimal cleaning schedule is also suggested for user reference. In this work, the optimum cleaning schedule with minimum energy consumption and maximum energy saving could be achieved when cleaning decision limit is set at 40% decrease of overall heat transfer coefficient. In the contrast, the lowest number of cleaning procedures is associated with 90% decrease in the overall heat transfer coefficient as the cleaning decision limit.
DISPERSION OF SO2 AND NO2 EMITTED BY AUXILIARY BOILER OF PT KMI METHANOL INDUSTRIAL USING THE GAUSSIAN PLUM MODEL AERMOD IN BONTANG CITY EAST KALIMANTAN INDONESIA Edhi Sarwono; Eka Wijayanto; Hairul Huda; Reynaldi Ferdhani Harrits; Iqbal Fathur Zain
Jurnal Chemurgy Vol 6, No 2 (2022): Jurnal Chemurgy-Desember 2022
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/cmg.v6i2.9560

Abstract

The petrochemical industry PT Kaltim Methanol Industri Bontang City, uses auxiliary boilers with natural gas fuel and is connected to the stack to emit pollutants into the atmosphere. The objectives of this study are SO2 modeling with a radius of 5 kilometers and modeling of NO2 with a radius of 10 kilometers from the emission source. Modeling using AERMOD software, AERMET Software, and Aermap ArcGIS Software.  The wind rose in the dominant research area from the southwest and northeast directions. Dispersion of SO2 and NO2 decreases according to the distance. The increase in concentration occurred in areas that experienced elevation increases, in Teluk Pandan District with a distance of about 10 kilometers northwest with an elevation of about 100 meters above sea level, and part of the West Bontang District with a distance of about 5 kilometers to the southwest with an elevation of about 90 meters above sea level. The maximum concentration of SO2 at the receptor was 6.2631 μg/m3 on hourly modeling, 0.58132 μg/m3 on modeling per 24 hours, and 0.0317 μg/m3 on annual modeling. The maximum NO2 concentration at the receptor was 1.96781 μg/m3 on hourly modeling, 0.18089 μg/m3 on hourly modeling, and 0.01002 μg/m3 on annual modeling. The distribution of pollutants based on hourly modeling per 24 hours is spreading in all directions and irregularly while for annual modeling it tends to spread towards the southwest and northeast according to the wind rose.Keywords: AERMOD, Emissions, Modeling, Air Dispersion, Auxiliary boiler 
ANALYSIS OF PUMP INSTALLATION DESIGN FOR CLEAN WATER IN PT PAMAPERSADA NUSANTARA, INDO DISTRICT - BONTANG, EAST KALIMANTAN Moh. Arif Batutah; Hairul Huda
Jurnal Chemurgy Vol 6, No 2 (2022): Jurnal Chemurgy-Desember 2022
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/cmg.v6i2.9395

Abstract

The demand for clean water by company employees who live in barracks is changing. This change in direction also affects the distribution of clean water, which will impact the effectiveness of the plumbing and pump systems. This analysis aims to know the plumbing installation and selection of the right pump so it can operate optimally. The method used is the analysis by ignoring losses, such as friction losses between the working fluid and the equipment. This analysis also calculates head, capacity, pump power, and efficiency. From the calculation result, we conclude that the flow capacity is 2,643 m3/min, and the total head installation is 71,69 m. So, a centrifugal pump with rotation 2951 rpm, type Groundfos CRN 90 4-2, is the best pump for installation. Keywords: pump, head installation, pump power, efficiency, capacity 
OPTIMALISASI PROSES EKSTRAKSI MINYAK BIJI NYAMPLUNG MENGGUNAKAN RESPONSE SURFACE METHODOLOGY (RSM) Ahmad Moh. Nur; Hairul Huda; Rif'an Fathoni
Jurnal Chemurgy Vol 6, No 2 (2022): Jurnal Chemurgy-Desember 2022
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/cmg.v6i2.9450

Abstract

Nyamplung (Calophyllum inophyllum L.) is a plant with great potential as a fuel source that can be developed in Indonesia. The oil content of nyamplung seeds is 60-75%. This study aims to optimize the process of extracting oil from nyamplung seeds using hexane solvent at various operating conditions and obtain optimum extraction operating conditions. In the process stage, extraction will be carried out using hexane solvent with several operating variations, namely extraction temperature (35-45oC); extraction time (4-6 hours); stirring speed (200-600 rpm), the process of optimizing oil extraction from nyamplung seeds was carried out using the Response Surface Methodology (RSM). The oil obtained was then characterized through several analyzes, namely yield, acid number, density and viscosity. Based on the research results, optimization of the nyamplung seed oil extraction process resulted in an oil yield of 52.43% which was obtained at 40oC, 5 hours of extraction time and 500 rpm of stirrer speed. Optimization with the aim of maximizing the oil yield response was obtained 55.33% yield at 45oC, 6 hours extraction time and 600 rpm stirrer speed. Optimization of each oil quality does not produce a significant model response. The quality of the oil resulting from the optimization of the yield is an acid number of 10.51 mgKOH/g, a density of 0.94 g/ml, and a viscosity of 4.47 cP.Keywords: calophyllum, oil, optimization, response surface methodology 
The effect of pressure on the concentration of methane and carbon dioxide absorption in biogas Hairul Huda; Revy Aditya; Rivaldo Bodewyn Julian Worotikan; Nurdin Nurdin
Konversi Vol 12, No 1 (2023): April 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v12i1.14680

Abstract

Biogas is playing a vital role in the emerging market for renewable energy. Biogas is an alternative energy that can be used as a substitute for fossil energy. The main composition of biogas is methane gas (CH4) and carbon dioxide gas (CO2) with a small amount of hydrogen sulfide (H2S). Therefore, it is necessary to do treatment to enrich gas methane and reduce CO2 and H2S content in optimizing the use of biogas. Absorption is a CO2 capture technology often used in the chemical industry. A chemical absorption technique using a solvent solution is one of the most widely used techniques to capture CO2. This research uses MDEA (Nmethyldiethanolamine) solvent as an alkanolamine solution dissolved in water. The unit operation usually used to carry out the absorption process is an absorber, and the type of absorber used is a spray column absorber. Simulating variations in pressure on the absorber was conducted in this research. The result of this research is that the increase in pressure will increase the composition percent of CH4 in sweet gas and increase the amount of CO2 absorption in biogas. The best result of absorber pressure is obtained at a pressure of 48 bar. The purity of CH4 and %removal of CO2 in biogas can be solved simply by using the evaluation parameters of the various absorber pressures presented, which we expect to contribute to the biogas industry in the future.
Co-Authors Adam Ari Johansyah Adam Ari Johansyah, Adam Ari Ahmad Moh. Nur Aji Ery Burhandenny Budi Nining Widarti Dhea Yolanda Didit Suprihanto, Didit Edhi Sarwono Edhi Sarwono Eka Wijayanto Fathoni, Rif'an Iqbal Fathur Zain Moh. Arif Batutah Nurdin Nurdin Renanto Handogo Revy Aditya Reynaldi Ferdhani Harrits Rif'an Fathoni Rivaldo Bodewyn Julian Worotikan Tantra Diwa Larasati Totok Ruki Biyanto Vincentius Surya Kurnia Adi Wei Wu Zulminadan Ardi Zulminadan Ardi, Zulminadan