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All Journal International Journal of Applied Power Engineering (IJAPE) JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Waste Technology Eksergi: Chemical Engineering Journal World Chemical Engineering Journal JURNAL INTEGRASI PROSES Jurnal Riset Teknologi Pencegahan Pencemaran Industri

Iqbal Syaichurrozi

Jurusan Teknik Kimia, Fakultas Teknik, Universitas Sultan Ageng Tirtayasa, Cilegon-Banten, Indonesia

Author-ID : 399009

Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Other

Published : 17 Documents Claim Missing Document

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Effect of Substrate/Water Ratio on Biogas Production from the Mixture Substrate of Rice Straw and Salvinia molesta Syaichurrozi, Iqbal; Suhirman, Suhirman; Hidayat, Topik
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 12 No. 2 (2021)
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2021.v12.no2.p45-55

The substrate/water (S/W) ratio is one of the affecting parameters in anaerobic digestion (AD) since it affects the concentration of total solids (TS) in the biogas feedstocks. The appropriate S/W ratio has to be found to result in a high biogas yield. The goal of this study was to look into the influence of S/W ratio on biogas production from mixture substrate of rice straw and Salvinia molesta. Ratio of S/W was varied to be 1/7 w/v (TS 9.67%w/w), 1/10 w/v (TS 7.52%w/w), 1/13 w/v (TS 6.15%w/w), 1/16 w/v (TS 5.20%w/w). The results showed that S/W of 1/7, 1/10, 1/13, 1/16 resulted a total biogas yield of 22.86, 38.67, 42.71, 43.69 mL/g TS respectively. Decreasing TS from 9.67 %w/w (S/W of 1/7) until 6.15%w/w (S/W of 1/13) could increase the TS removal from 31.03% until 55.66%. However, at TS 5.20%w/w (S/W of 1/16), the TS removal was lower than that at TS 6.15%w/w (S/W of 1/13). The modified Gompertz (R2 = 0.94 – 0.98) can predict evolution of biogas production with higher precision than the first order kinetic (R2 = 0.91 – 0.98). The optimum TS was successfully predicted to become 5.40%w/w.

Kinetic Study on Coagulation Process with Poly Aluminium Chloride and Alum Coagulants in Treating The Liquid Waste of Tempeh Industry Iqbal Syaichurrozi
Eksergi Vol 18, No 2 (2021)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v0i0.5362

Several factors that influence the coagulation process in reducing chemical oxygen demand (COD) in wastewater are processing time, coagulant dose and type of coagulant. The effect of these three factors on the reduction of COD in tempeh industrial wastewater during the coagulation process has been investigated by Hidayah (2018). However, kinetic studies in depth have not been done by Hidayah (2018). Therefore, the aim of this study was to develop a new kinetic model that can predict the performance of the coagulation process. It is hoped that the kinetic model can be used in a wider range of operating conditions. In this study, the pseudo first order and pseudo second order kinetic models were tested to get the best model. Based on simulation results, both models produced almost the same accuracy. For reason of simplification, the pseudo first order model was chosen as the basic model in this study. Furthermore, modifications were made to the pseudo first order model so that the effect of processing time, coagulant dose and type of coagulant appeared in the model. This kinetic model was successfully tested to predict the coagulation performance of study of Hidayah (2018) with an average Mean Absolute Percentage Error (MAPE) of 10.8%.

Study of Plate and Frame Heat Exchanger Performance : The Effects of Mass Flow Rate, Inlet Temperature and Type of Flow Againts The Overall Heat Transfer Coefficient Iqbal Syaichurrozi; Afdwiyarni Metta Karina; Ahmad Imanuddin
Eksergi Vol 11, No 2
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v11i2.361

The purpose of this study is to know the effects of mass flow rate, inlet temperature and type of flow againts overall heat transfer coefficient (U). Heat exchanger used in this study was plate and frame type of TRIMGS 10. Mass flow rate of hot fluida was variated into 0.3 and 0.253 kg/s; mass flow rate of cold fluida was variated into 0.276 and 0.22 kg/s; inlet temperature of hot fluida was variated into 40, 45, 50 oC; type of flow was variated into co-current and counter current. The results show that the faster mass flow rate hot and cold fluida, the bigger overall heat transfer coefficient obtained. Also, the higher inlet temperature, the the bigger overall heat transfer coefficient obtained. In this study, the biggest of U value was obtained with variable of inlet temperatur 50°C, mass flow rate of cold fluid 0.276 kg/s, mass flow rate of hot fluid 0.3 kg/s, which were 140.6532 W/m2°C using type of counter-current flow and 135.4576 W/m2°C using type of co-current flow. Type of counter-current flow gave more satisfactory result of U value than type of co-current flow

Pengaruh Variasi Konsentrasi NaNO3 pada Medium Raoof terhadap Kultivasi Spirulina Platensis Iqbal Syaichurrozi; Wardalia Wardalia; Sharfan Dwicahyanto; Yustinus Selis Toron
Eksergi Vol 19, No 1 (2022)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v19i1.6581

Nutrition is one of the factors that affect the growth of Spirulina platensis. The cultivation medium proposed by Raoof is a modified version of Zarrouk medium. Raoof medium requires less nutrients than Zarrouk medium but the biomass produced is almost the same. This study was conducted to vary the concentration of NaNO3 of 0.5; 1.5; 2.5; 3.5 g/L in Raoof medium to study its effect on growth and biomass composition of S. platensis. At each concentration of NaNO3 of 0.5; 1.5; 2.5; 3.5 g/L obtained the highest biomass concentration of 0.6425; 0.6455; 0.6745; 0,5193 g/L on days 12, 12, 12, 10. Concentration of NaNO3 of 2.5 g/L resulted in the highest specific growth rate of 0.1371/day and the lowest double time of 5.0566 days. In general, increasing the concentration of NaNO3 from 0.5 to 2.5 g/L increased the protein content from 33.30 to 36.98%. The addition of higher NaNO3 (3.5 g/L) actually decreased the protein content to 35.52%.

Co-Digestion of Vinasse Waste and Tofu Liquid Waste to Increase Biogas Production Iqbal Syaichurrozi
Eksergi Vol 12, No 2 (2015)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v12i2.1357

The purpose of this study was to increase biogas production using co-digestion concept. Vinasse Waste (VW) containing high COD and low total Nitrogen content was mixtured with Tofu Liquid Waste (TLW) containing low COD and high total Nitrogen. Substrates were varied with volume ratio of VW:TLW of 100:0, 20:80, 0:100. Total volume of substrates was 250 mL. Anaerobic digesters were operated at room temperatur. After fermentation, biogas total volume of variables of 100:0, 20:80, 0:100 was 88.5; 125.5; 41.5 mL. Initial pH for all variables was 7.0. At the end of fermentation, pH substrates became 3.9; 5.1; 6.8 for variables of 100:0, 20:80, 0:100 respectively.

Biogas production from bioethanol waste: the effect of pH and urea addition to biogas production rate Budiyono Budiyono; Iqbal Syaichurrozi; Siswo Sumardiono
Waste Technology Vol 1, No 1 (2013)
Publisher : Diponegoro University

Anaerobic treatment is a good choice to treat bioethanol waste due to the high concentration of COD content for producing biogas as renewable energy. The purposes of this study were to study the effect of addition nitrogen source and pH control to biogas production. The laboratory scale-anaerobic digestions used in this experiment were operated in batch system and at room temperature. In determination of optimum pH, bioethanol waste and rumen fluid fed into digesters with initial pH 6.0; 7.0 and 8.0. Influent COD : N ratio (in form of urea) used in this study was 700:7 in compare to control. The results showed that initial pH 7.0 produced the most biogas with total biogas 3.81 mL/g COD. While initial pH 6 and pH 8 had total biogas 3.25 mL/g COD and 3.49 mL/g COD respectively. At urea addition, biogas formed had 52.47% greater than that of at without urea addition (control variable). Controlled pH caused biogas was produced until 90-day investigation and might continue to be produced. Total biogas of control variable (without urea addition) and variable with ratio COD:N=700:7 influent were 11.07 mL/g COD and 11.41 mL/g COD respectively.Doi: http://dx.doi.org/10.12777/wastech.1.1.1-5Citation: Budiyono, Syaichurrozi, I. and Sumardiono, S. 2013. Biogas production from bioethanol waste: the effect of pH andurea addition to biogas production rate. Waste Technology 1(1):1-5. Doi: http://dx.doi.org/10.12777/wastech.1.1.1-5

Review – Biogas Technology to Treat Bioethanol Vinasse Iqbal Syaichurrozi
Waste Technology Vol 4, No 1 (2016)
Publisher : Diponegoro University

Bioethanol industries generate by-product that is called vinasse. Vinasse is generated from button product of distillation unit. It has high COD, high TS, high temperature, very low pH and some variety compounds. Because of these contents, vinasse can be discharged directly into the water bodies such as the rivers. Vinasse causes negative impact to environment. Therefore, treatment of vinasse must be done. Vinasse treatment methods that had investigated by some authors are aerobic treatment and anaerobic treatment. Anaerobic treatment is more interesting than aerobic treatment, because it can treat wastewaters that contain high COD and it can produce biogas that can be used as alternative fuels.

KARAKTERISTIK EDIBLE FILM DARI PATI GANYONG (Canna edulis Kerr.) BERANTIMIKROBA Iqbal Syaichurrozi; Netty Handayani; Dyah Hesti Wardhani
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (148.097 KB)

Edible films are thin layers that can maintain the quality of food products, are edible and environment friendly. Additives such as antimicrobial are added to improve the quality of edible films in handling food product. The purpose of this research is to study the effects of antimicrobial substances of characteristics of edible films from canna starch. The films prepared from 2% w/v of canna starch and 1% v/v (solution basis) of sorbitol. Garlic powder and turmeric powder were used as antimicrobial at 0.01% w/v solution concentration. Moisture content, thickness, the percentage elongation and tensile strength were determined. Antimicrobial testing performed using agar diffusion method and observed for the zone of inhibition growth of E.coli. The results show the control edible film has 18.72% of a moisture content, 0.08 mm of film thickness, 2.75 N/mm2 of tensile strength and 37.78 % percentage of elongation. The addition of the antimicrobial substances decreased the water content, the percentage of elongation and the tensile strength but increased the thickness. Antimicrobial testing showed that the addition of benzoic acid in the film were unable to inhibit the growth of E.coli.

POTENSI LIMBAH CAIR TAHU SEBAGAI MEDIA TUMBUH SPIRULINA PLATENSIS Iqbal Syaichurrozi; Jayanudin Jayanudin
JURNAL INTEGRASI PROSES VOLUME 6 NOMOR 2 DESEMBER 2016
Publisher : JURNAL INTEGRASI PROSES

Penelitian ini bertujuan untuk mengkaji potensi limbah cair tahu sebagai media tumbuh Spirulina platensis. Pada penelitian pendahuluan, didapatkan hasil bahwa Spirulina platensis tidak dapat tumbuh ketika media ditambahkan lebih dari 10%v/v. Oleh karena itu, pada penelitian utama, penambahan limah cair tahu divariasikan 4, 6, 8%v/v. Kultivasi dilakukan selama 20 hari. Hasil menunjukkan nilai akhir OD680 pada penambahan 4-8 %v/v masing masing adalah 0,67; 0,91; 0,86. Sementara itu, nilai laju pertumbuhannya masing-masing sebesar 0,0953; 0,1107; 0,1077 /hari. Komposisi C:N:P pada variasi penambahan limbah cair tahu 4-8%v/v adalah 198:23:1, 161:17:1, 142:14:1. Hasil terbaik didapatkan pada penambahan limbah cair tahu 6%v/v.

The effect of Inoculum to Substrate and Carbon to Nitrogen Ratios on the Biogas Quantity and Quality from Anaerobic Digestion of Salvinia molesta: Experimental and Kinetic Studies Iqbal Syaichurrozi; M. Fakhri Basyir; Rafi Muhammad Farraz; Putri Kurnia Villta; Nabilah Nabilah; Rusdi Rusdi; Sutaryo Sutaryo
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 13 No. 1 (2022)
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2022.v13.no1.p1-11

The purpose of this study was to investigate the effect of inoculum to substrate (I/S) and carbon to nitrogen (C/N) ratios on the biogas quantity and quality from anaerobic digestion of Salvinia molesta (SM). The I/S was adjusted to become 1.5, 2, 2.5 and the C/N was to become 21.5, 25, 30. Anaerobic digestion (AD) was operated during 30 days under the room pressure and temperature. The results showed that increase in I/S from 1.5 to 2.5 increased the biogas yield from 19.01 to 33.84 mL/g VS. Besides that, it increased the methane content from 52.54 to 69.01%. Furthermore, increase in C/N to 21.5 to 30 decreased the biogas yield from 33.84 to 30.85 mL/g VS and then decreased the methane content from 69.01 to 6.99%. Hence, the best condition was in the substrate with I/S of 2.5 and C/N of 21.5. The measured data was successfully predicted through the modified Gompertz and the first order kinetic models with R2 of 0.9905 and 0.9476 respectively.

Co-Authors Afdwiyarni Metta Karina Ahmad Imanuddin Anellysha Putri Apriantika Anwari, Ropi Apriantika, Anellysha Putri B Budiyono Budiyono Budiyono Dea Yusuf Yudanto, Dea Yusuf Dyah Hesti Wardhani Hadi Prayitno, Hadi I Gusti Bagus Wiksuana Janah, Citra Nurul Jayanudin Jayanudin Listiyani Nurwindya Sari M. Fakhri Basyir Matin, Hashfi Hawali Abdul Mita Napitasari, Mita Muhamad Farhan Nabilah Nabilah Netty Handayani Putri Kurnia Villta Rafi Muhammad Farraz Rusdi Rusdi Sari, Listiyani Nurwindya Sharfan Dwicahyanto Siswo Sumardiono Suherman, Suherman SUHIRMAN SUHIRMAN Sutaryo Sutaryo Syafrudin Syafrudin Topik Hidayat Wardalia Wardalia Yustinus Selis Toron

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