Hasna Aprilia, Jelita Ninda Qorina, R. Arbianti, T. S. Utami
One way to treat oil waste is a seawater desalination system that uses exoelectorgenic bacteria as an agent for the degradation of organic compounds contained in oil waste. Microbial Desalination Cell (MDC) is a development of Microbial Fuel Cell (MFC), a method that can eliminate salt content in seawater using electricity generated by bacteria from wastewater. Stacked Microbial Desalination Cell (SMDC) is an MDC development where SMDC uses many pairs of ion Exchange Membranes (IEMs) where IEMs are placed between the Anion Exchange Membrane (AEM) and the Cation Exchange Membrane (CEM). This is intended to increase the efficiency of electron transfer. SMDC can also return more energy than other types of MDC so that the cost is more effectively. In this research, using a 2-SMDC reactor configuration with graphite rods as anode, CFC coated with activated carbon as a cathode, potassium permanganate as catholyte, and adding ion exchange resin to salt chamber. Independent variables used in this research were activated carbon mass variations of 0, 2, and 4 g. Parameters that will be obtained are COD, electrical productivity, and pH. The results obtained in this study indicate that the optimum mass variation of activated carbon is 4 g by adding Ion Exchange resin (ratio Resin Na and Cl 1 : 1) with a COD reduction of 57.808% and produces electrical productivity of 0.000561 W/m3 , and the change in pH by 0.24.
{"title":"Improved performance of stacked microbial desalination cell as oil waste model treatment by adding ion exchange resin and activated carbon","authors":"Hasna Aprilia, Jelita Ninda Qorina, R. Arbianti, T. S. Utami","doi":"10.1063/5.0064869","DOIUrl":"https://doi.org/10.1063/5.0064869","url":null,"abstract":"One way to treat oil waste is a seawater desalination system that uses exoelectorgenic bacteria as an agent for the degradation of organic compounds contained in oil waste. Microbial Desalination Cell (MDC) is a development of Microbial Fuel Cell (MFC), a method that can eliminate salt content in seawater using electricity generated by bacteria from wastewater. Stacked Microbial Desalination Cell (SMDC) is an MDC development where SMDC uses many pairs of ion Exchange Membranes (IEMs) where IEMs are placed between the Anion Exchange Membrane (AEM) and the Cation Exchange Membrane (CEM). This is intended to increase the efficiency of electron transfer. SMDC can also return more energy than other types of MDC so that the cost is more effectively. In this research, using a 2-SMDC reactor configuration with graphite rods as anode, CFC coated with activated carbon as a cathode, potassium permanganate as catholyte, and adding ion exchange resin to salt chamber. Independent variables used in this research were activated carbon mass variations of 0, 2, and 4 g. Parameters that will be obtained are COD, electrical productivity, and pH. The results obtained in this study indicate that the optimum mass variation of activated carbon is 4 g by adding Ion Exchange resin (ratio Resin Na and Cl 1 : 1) with a COD reduction of 57.808% and produces electrical productivity of 0.000561 W/m3 , and the change in pH by 0.24.","PeriodicalId":422976,"journal":{"name":"THE 5TH INTERNATIONAL TROPICAL RENEWABLE ENERGY CONFERENCE (THE 5TH iTREC)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117090157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Process parameter estimation of supercritical carbon dioxide extraction of lipids fromspent coffee grounds","authors":"Y. Muharam, Muhammad Audry Ramadhany","doi":"10.1063/5.0063912","DOIUrl":"https://doi.org/10.1063/5.0063912","url":null,"abstract":"","PeriodicalId":422976,"journal":{"name":"THE 5TH INTERNATIONAL TROPICAL RENEWABLE ENERGY CONFERENCE (THE 5TH iTREC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122803682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Formaldehyde production process control performance improvement using model predictive control","authors":"A. Wahid, Sultan Shiddiqi Salman","doi":"10.1063/5.0063449","DOIUrl":"https://doi.org/10.1063/5.0063449","url":null,"abstract":"","PeriodicalId":422976,"journal":{"name":"THE 5TH INTERNATIONAL TROPICAL RENEWABLE ENERGY CONFERENCE (THE 5TH iTREC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116742975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Sugiarto, Natasya Farisa, Chandra Simanjuntak, Andhika Purnama Adrian, Naufal Abi Nubli
{"title":"The effect of low-grade bioethanol and oxygenated cyclooctanol additive utilization on motor makara's specific fuel consumption and coefficient of variation","authors":"B. Sugiarto, Natasya Farisa, Chandra Simanjuntak, Andhika Purnama Adrian, Naufal Abi Nubli","doi":"10.1063/5.0066907","DOIUrl":"https://doi.org/10.1063/5.0066907","url":null,"abstract":"","PeriodicalId":422976,"journal":{"name":"THE 5TH INTERNATIONAL TROPICAL RENEWABLE ENERGY CONFERENCE (THE 5TH iTREC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122325115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Preface: The 5th International Tropical Renewable Energy Conference (i-TREC 2020)","authors":"IrwansyahRidho, BudiyantoMuhammad Arif","doi":"10.1063/12.0005749","DOIUrl":"https://doi.org/10.1063/12.0005749","url":null,"abstract":"","PeriodicalId":422976,"journal":{"name":"THE 5TH INTERNATIONAL TROPICAL RENEWABLE ENERGY CONFERENCE (THE 5TH iTREC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132078598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Sugiarto, Chandra Simanjuntak, Andhika Purnama Adrian, Natasya Farisa, Naufal Abi Nubli
{"title":"Comparative study on the use of oxigenated additive at low grade bioethanol for spark ignition engine","authors":"B. Sugiarto, Chandra Simanjuntak, Andhika Purnama Adrian, Natasya Farisa, Naufal Abi Nubli","doi":"10.1063/5.0063924","DOIUrl":"https://doi.org/10.1063/5.0063924","url":null,"abstract":"","PeriodicalId":422976,"journal":{"name":"THE 5TH INTERNATIONAL TROPICAL RENEWABLE ENERGY CONFERENCE (THE 5TH iTREC)","volume":"135 14","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114100590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Research on biomass conversion technology to obtain valuable chemical compounds continues to be carried out, one of which is the pyrolysis process. The pyrolysis process is very sensitive to the temperature and pressure of its operation. The reaction mechanism that occurs in a pyrolysis reactor is sometimes uneven so it takes longer to ensure all biomass particles are pyrolyzed. Experiments were carried out at various temperatures of pyrolysis reaction as well as catalytic and non-catalytic conditions to obtain the highest furfural products in the pyrolysis vapor. Using GC-MS analysis, the results show that the role of acid behavior in the ZSM-5 catalyst can increase furfural products and maximum furfural products obtained under pyrolysis condition at 500°C of 1.11 milligrams per gram of raw material for rice straw and increase to 1.48 milligrams per gram under catalytic pyrolysis condition.
{"title":"Catalytic pyrolysis of rice straw using ZSM-5 catalyst to produce furfural compounds","authors":"Vira Annisa Indriani, Angela Lesmono, Setiadi","doi":"10.1063/5.0065866","DOIUrl":"https://doi.org/10.1063/5.0065866","url":null,"abstract":"Research on biomass conversion technology to obtain valuable chemical compounds continues to be carried out, one of which is the pyrolysis process. The pyrolysis process is very sensitive to the temperature and pressure of its operation. The reaction mechanism that occurs in a pyrolysis reactor is sometimes uneven so it takes longer to ensure all biomass particles are pyrolyzed. Experiments were carried out at various temperatures of pyrolysis reaction as well as catalytic and non-catalytic conditions to obtain the highest furfural products in the pyrolysis vapor. Using GC-MS analysis, the results show that the role of acid behavior in the ZSM-5 catalyst can increase furfural products and maximum furfural products obtained under pyrolysis condition at 500°C of 1.11 milligrams per gram of raw material for rice straw and increase to 1.48 milligrams per gram under catalytic pyrolysis condition.","PeriodicalId":422976,"journal":{"name":"THE 5TH INTERNATIONAL TROPICAL RENEWABLE ENERGY CONFERENCE (THE 5TH iTREC)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122693962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Sugiarto, Naufal Abi Nubli, Chandra Simanjuntak, Andhika Purnama Adrian, Natasya Farisa
{"title":"The effect of low-grade bioethanol and oxygenated cyclooctanol additive utilization on honda Supra 125 cc motor’s power, torque, and coefficient of variation","authors":"B. Sugiarto, Naufal Abi Nubli, Chandra Simanjuntak, Andhika Purnama Adrian, Natasya Farisa","doi":"10.1063/5.0064288","DOIUrl":"https://doi.org/10.1063/5.0064288","url":null,"abstract":"","PeriodicalId":422976,"journal":{"name":"THE 5TH INTERNATIONAL TROPICAL RENEWABLE ENERGY CONFERENCE (THE 5TH iTREC)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129878708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISO 14001 is a set of standards to help organizations for constructing an environmentally building or rooms. In the campus environment, the ISO 14001 is used as the guide for creating an environmentally laboratory. Based on this ISO, the environmental condition of the laboratory need to be checked periodically. Recently, IoT devices were developed as the tools to monitor the ecological status of the laboratory. However, the recent study of IoT-based monitoring is used only for collecting the data. The data is being processed manually on the server. In our research, we try to implement machine learning for the IoT-based monitoring tools to improve the performance and gives the capability to respond to any condition of the laboratory. In this paper, we discussed our proposed design of IoT-based monitoring devices. We used a microcontroller module called NodeMCU ESP8266 to build an efficient monitoring system. ESP8266 is a type of microcontroller board equipped with a WiFi module to make it possible to design a system that can send data from multiple sensors (temperature, humidity, light intensity, CO2 concentration) to be displayed and sent to the database server using the WiFi module. The data collected in the database will be processed using machine learning by the Classification and Regression Tree (CART) algorithm and then implemented to the microcontroller as embedded machine learning to detect impending early threats and provide early warnings. With this method, it has been found that the CART algorithm provides a speedy processing time with training and testing time of 0.5 seconds and 0.06 seconds, the precision of 0.999154, recall of 0.999946, and f1-score of 1.0. We also design our device to be compact to be placed anywhere inside the laboratory and consume low-power.
ISO 14001是一套帮助组织建造环境建筑或房间的标准。在校园环境中，ISO 14001被用作创建环境实验室的指南。根据此ISO，需要定期检查实验室的环境状况。最近，物联网设备被开发为监测实验室生态状况的工具。然而，最近对物联网监控的研究仅用于收集数据。服务器上正在手工处理数据。在我们的研究中，我们尝试为基于物联网的监控工具实施机器学习，以提高性能，并提供响应实验室任何条件的能力。在本文中，我们讨论了我们提出的基于物联网的监控设备设计。我们使用微控制器模块NodeMCU ESP8266来构建一个高效的监控系统。ESP8266是一种配备WiFi模块的微控制器板，可以设计一个系统，将多个传感器(温度、湿度、光照强度、二氧化碳浓度)的数据发送到数据库服务器，并通过WiFi模块进行显示。数据库中收集的数据将通过分类和回归树(CART)算法使用机器学习进行处理，然后作为嵌入式机器学习实现到微控制器中，以检测即将发生的早期威胁并提供早期预警。实验结果表明，CART算法具有较快的处理速度，训练时间为0.5秒，测试时间为0.06秒，准确率为0.999154，召回率为0.999946,f1-score为1.0。我们还设计了紧凑的设备，可以放置在实验室的任何地方，并且功耗低。
{"title":"Design of laboratory room monitoring system using multi-sensor and CART algorithm","authors":"Deza Achmad Zakiy, I. G. D. Nugraha","doi":"10.1063/5.0064985","DOIUrl":"https://doi.org/10.1063/5.0064985","url":null,"abstract":"ISO 14001 is a set of standards to help organizations for constructing an environmentally building or rooms. In the campus environment, the ISO 14001 is used as the guide for creating an environmentally laboratory. Based on this ISO, the environmental condition of the laboratory need to be checked periodically. Recently, IoT devices were developed as the tools to monitor the ecological status of the laboratory. However, the recent study of IoT-based monitoring is used only for collecting the data. The data is being processed manually on the server. In our research, we try to implement machine learning for the IoT-based monitoring tools to improve the performance and gives the capability to respond to any condition of the laboratory. In this paper, we discussed our proposed design of IoT-based monitoring devices. We used a microcontroller module called NodeMCU ESP8266 to build an efficient monitoring system. ESP8266 is a type of microcontroller board equipped with a WiFi module to make it possible to design a system that can send data from multiple sensors (temperature, humidity, light intensity, CO2 concentration) to be displayed and sent to the database server using the WiFi module. The data collected in the database will be processed using machine learning by the Classification and Regression Tree (CART) algorithm and then implemented to the microcontroller as embedded machine learning to detect impending early threats and provide early warnings. With this method, it has been found that the CART algorithm provides a speedy processing time with training and testing time of 0.5 seconds and 0.06 seconds, the precision of 0.999154, recall of 0.999946, and f1-score of 1.0. We also design our device to be compact to be placed anywhere inside the laboratory and consume low-power.","PeriodicalId":422976,"journal":{"name":"THE 5TH INTERNATIONAL TROPICAL RENEWABLE ENERGY CONFERENCE (THE 5TH iTREC)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125908380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Faruq Nashrulloh, C. Anwar, M. Sulaiman, R. Budiarto
This paper would present a techno-economic potential and feasibility analysis in the planning of renewable biogas energy from palm oil mills effluent (POME) in PenajamPaser Utara Regency. The analysis was done based on the last three-year production data history of 7 (seven) palm oil processing factories in the region. The total fresh fruit bunches processed were about 891.624 tons/year, and the POME produced was 553.677 tons/year. The total potential electricity generated from POME reached 43.248.101 kWh/year. The factories took place in Babulu, Waru, Penajam, and Sepaku. The assessment of sustainability indicators in this research took into account the technology and economic aspects. The technology helps evaluate the technical planning of installations that are possible to build in the area. The economic aspect of sustainability evaluates the net present value (NPV), internal rate of return (IRR), and the payback period of renewable energy installation. This analysis aimed to get a comprehensive insight from the potential biomass energy that exists at the research locations and conduct a feasibility study based on techno-economic analysis to develop renewable energy. The results showed that Sepaku had the most significant potential of biogas by producing 1.752 Nm3/hour of biogas and generating 3.28 MW continuous power with a feed-in tariff of IDR1.065,462 IDR/kWh. The electricity was feasible to offer to the government electrical company. Moreover, this project had a payback period of 7.51 years and an IRR Project of 12.90% for private investors.
本文将介绍PenajamPaser Utara Regency棕榈油厂废水(POME)可再生沼气能源规划的技术经济潜力和可行性分析。该分析是根据该地区7家棕榈油加工厂过去三年的生产数据历史进行的。鲜果串加工总量891.624吨/年，果胶产量553.677吨/年。POME的总潜在发电量达到43.248.101千瓦时/年。这些工厂位于Babulu、Waru、Penajam和Sepaku。这项研究中可持续性指标的评估考虑到了技术和经济方面。该技术有助于评估该地区可能建造的设施的技术规划。可持续性的经济方面评估净现值(NPV)，内部收益率(IRR)和可再生能源装置的回收期。该分析旨在全面了解研究地点存在的潜在生物质能，并基于技术经济分析进行可再生能源开发的可行性研究。结果表明，Sepaku的沼气潜力最大，沼气产量为1.752 Nm3/h，连续发电3.28 MW，上网电价为1.065,462 IDR/kWh。向政府电力公司提供电力是可行的。此外，该项目对私人投资者的投资回收期为7.51年，IRR项目为12.90%。
{"title":"Analysis of potential and feasibility of riogas energy from palm oil mill effluent in penajam paser utara regency","authors":"Faruq Nashrulloh, C. Anwar, M. Sulaiman, R. Budiarto","doi":"10.1063/5.0063457","DOIUrl":"https://doi.org/10.1063/5.0063457","url":null,"abstract":"This paper would present a techno-economic potential and feasibility analysis in the planning of renewable biogas energy from palm oil mills effluent (POME) in PenajamPaser Utara Regency. The analysis was done based on the last three-year production data history of 7 (seven) palm oil processing factories in the region. The total fresh fruit bunches processed were about 891.624 tons/year, and the POME produced was 553.677 tons/year. The total potential electricity generated from POME reached 43.248.101 kWh/year. The factories took place in Babulu, Waru, Penajam, and Sepaku. The assessment of sustainability indicators in this research took into account the technology and economic aspects. The technology helps evaluate the technical planning of installations that are possible to build in the area. The economic aspect of sustainability evaluates the net present value (NPV), internal rate of return (IRR), and the payback period of renewable energy installation. This analysis aimed to get a comprehensive insight from the potential biomass energy that exists at the research locations and conduct a feasibility study based on techno-economic analysis to develop renewable energy. The results showed that Sepaku had the most significant potential of biogas by producing 1.752 Nm3/hour of biogas and generating 3.28 MW continuous power with a feed-in tariff of IDR1.065,462 IDR/kWh. The electricity was feasible to offer to the government electrical company. Moreover, this project had a payback period of 7.51 years and an IRR Project of 12.90% for private investors.","PeriodicalId":422976,"journal":{"name":"THE 5TH INTERNATIONAL TROPICAL RENEWABLE ENERGY CONFERENCE (THE 5TH iTREC)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123597403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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