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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 SAINTEK Jurnal Bahan Alam Terbarukan
Iqbal Syaichurrozi
Jurusan Teknik Kimia, Fakultas Teknik, Universitas Sultan Ageng Tirtayasa, Cilegon-Banten, Indonesia
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Other

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Journal : Eksergi: Chemical Engineering Journal

 1 
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

Abstract

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

Abstract

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

Abstract

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

Abstract

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.
Effect of Alum Dose in the Coagulation Process for Decreasing the Pollutant in the Palm Oil Mill Effluent: Experimental and Kinetic Analysis Iqbal Syaichurrozi; Jayanudin Jayanudin; Listiyani Nurwindya Sari; Anellysha Putri Apriantika
Eksergi Vol 19, No 3 (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.v19i3.7405

Abstract

Palm oil mill effluent (POME) is palm oil processing industrial waste that cannot be discharged directly into water bodies. Therefore, this waste must be treated. One method that can be used to treat it is coagulation. The purpose of this study was to investigate the effect of coagulant doses on the coagulation process for treating the POME through experimental and kinetic analysis. The alum dose was varied to 1, 3, 5, 10, 15 g/L. The volume of treated waste was 1 L. Before adding alum, the pH of POME was adjusted to 7.0 with the addition of technical grade NaOH. The coagulation process was carried out for 180 minutes at room temperature. Every 20 minutes, the pH of the liquid was measured and a fluid sample as much as ±50 mL was taken to be settled for 24 hours. Next, the total suspended solid (TSS) concentration in the supernatant was analyzed. The results showed that the addition of alum could decrease the liquid pH and increase the TSS of the liquid. The coagulation process for 180 minutes resulted in a TSS reduction efficiency of 33.3, 33.3, 37.1, 1.7, -17.8% at alum doses of 1, 3, 5, 10, 15 g/L respectively. The first-order kinetic model provided a better prediction than the second-order kinetic model with R2 values of 0.7876-0.9707 and 0.2746-0.8912, 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 Khomariah, Nur 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 Rais Fatikhin Rusdi Rusdi Sari, Listiyani Nurwindya Sharfan Dwicahyanto Siswo Sumardiono Suherman, Suherman SUHIRMAN SUHIRMAN Sutaryo Sutaryo Syafrudin Syafrudin Teguh Kurniawan Topik Hidayat Wardalia Wardalia Yustinus Selis Toron