Pub Date : 2021-06-04DOI: 10.2991/aer.k.210603.033
S. D. Ma’ruf, S. Bakri, I. G. Febryano, Agus Setiawan, A. Haryanto, Intan Fajar Suri, Nam-Hun Kim, W. Hidayat
Most of wood in Indonesia is dominated by fast-growing wood such as gmelina (Gmelina arborea) and materials such as coconut (Cocos nucifera). Using fast-growing woood natural forests, increase economic growth, and is more environment friendly. The objective of this study was to improve the wood properties of G. arborea and C. nucifera via hot oil treatment. The experiment was conducted in a lab-scale furnace using a commercial grade palm oil at 180°C, 200°C, 220°C, and 240°C for 3 h. The effect of hot oil treatment on color change, physical, and mechanical properties was evaluated. The results showed that increasing treatment temperature increase of the overall color change (ΔE*) in both G. arborea and C. nucifera. The density of G. arborea and C. nucifera decreased with increased temperature. The results also showed that increase in temperature reduced the moisture content, density and water absorption in both woods. The compressive strength of G. arborea and C. nucifera decreased with the increase in treatment temperature.
{"title":"Effects of Eco-frendly Hot Oil Treatment on the Wood Properties of Gmelina Aborea and Cocos Nucifera","authors":"S. D. Ma’ruf, S. Bakri, I. G. Febryano, Agus Setiawan, A. Haryanto, Intan Fajar Suri, Nam-Hun Kim, W. Hidayat","doi":"10.2991/aer.k.210603.033","DOIUrl":"https://doi.org/10.2991/aer.k.210603.033","url":null,"abstract":"Most of wood in Indonesia is dominated by fast-growing wood such as gmelina (Gmelina arborea) and materials such as coconut (Cocos nucifera). Using fast-growing woood natural forests, increase economic growth, and is more environment friendly. The objective of this study was to improve the wood properties of G. arborea and C. nucifera via hot oil treatment. The experiment was conducted in a lab-scale furnace using a commercial grade palm oil at 180°C, 200°C, 220°C, and 240°C for 3 h. The effect of hot oil treatment on color change, physical, and mechanical properties was evaluated. The results showed that increasing treatment temperature increase of the overall color change (ΔE*) in both G. arborea and C. nucifera. The density of G. arborea and C. nucifera decreased with increased temperature. The results also showed that increase in temperature reduced the moisture content, density and water absorption in both woods. The compressive strength of G. arborea and C. nucifera decreased with the increase in treatment temperature.","PeriodicalId":374590,"journal":{"name":"Proceedings of the International Conference on Sustainable Biomass (ICSB 2019)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123886360","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}
Pub Date : 2021-06-04DOI: 10.2991/aer.k.210603.009
E. Widiastuti, Benny, R. Supriyanto, Eva Octarianita
{"title":"Analysis of Heavy Metal Content in the Coral Reef and Foraminifera Benthic in Coastal Regions of Lampung Bay","authors":"E. Widiastuti, Benny, R. Supriyanto, Eva Octarianita","doi":"10.2991/aer.k.210603.009","DOIUrl":"https://doi.org/10.2991/aer.k.210603.009","url":null,"abstract":"","PeriodicalId":374590,"journal":{"name":"Proceedings of the International Conference on Sustainable Biomass (ICSB 2019)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123953108","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}
Pub Date : 2021-06-04DOI: 10.2991/aer.k.210603.052
L. Lismeri, M. Anggraini, A. Sudarni, Y. Darni
ABSTRACTThe production of bio-oil from biomass as renewable sources has been trusted as a suitable alternative in supplying future energy needs. Present in abundance amounts as crop residues cassava stems is potential biomass tobe utilized. As raw material, it has advantages such as fast and easy growth, minimal maintenance and utilizing plantation land without competing with food supply. The biomass characterization results showed that cassava stems containing cellulose, hemicellulose and lignin, respectively 40.16, 25.66 and 16.65% w/w. Cassava stems has low ash content and high of volatile matter with high carbon and low nitrogen.The HHV of cassava stems was19.08 MJ/kg.Physical propertiesby GC-MS tests of bio-oil produced via electromagnetic-assisted catalytic liquefaction(EA-CL)revealedthat the dominant content of chemicals were 5-methyl furfural,2-furancarboxaldehyde and acetic acid.The bio-oil density ranged from 0.979 to 0.984 g/mL and has a pH of 2.8. This result shows that cassava stemis appropriate biomass for further bio-oil production feedstock.Bio-oil using EA-CL process meets bio-oil standards.Keywords:Liquefaction, Biomass, Biooil, GC-MS
{"title":"Characterization of Cassava Stems as Potential Biomass for Bio-Oil Production via Electromagnetic-Assisted Catalytic Liquefaction","authors":"L. Lismeri, M. Anggraini, A. Sudarni, Y. Darni","doi":"10.2991/aer.k.210603.052","DOIUrl":"https://doi.org/10.2991/aer.k.210603.052","url":null,"abstract":"ABSTRACTThe production of bio-oil from biomass as renewable sources has been trusted as a suitable alternative in supplying future energy needs. Present in abundance amounts as crop residues cassava stems is potential biomass tobe utilized. As raw material, it has advantages such as fast and easy growth, minimal maintenance and utilizing plantation land without competing with food supply. The biomass characterization results showed that cassava stems containing cellulose, hemicellulose and lignin, respectively 40.16, 25.66 and 16.65% w/w. Cassava stems has low ash content and high of volatile matter with high carbon and low nitrogen.The HHV of cassava stems was19.08 MJ/kg.Physical propertiesby GC-MS tests of bio-oil produced via electromagnetic-assisted catalytic liquefaction(EA-CL)revealedthat the dominant content of chemicals were 5-methyl furfural,2-furancarboxaldehyde and acetic acid.The bio-oil density ranged from 0.979 to 0.984 g/mL and has a pH of 2.8. This result shows that cassava stemis appropriate biomass for further bio-oil production feedstock.Bio-oil using EA-CL process meets bio-oil standards.Keywords:Liquefaction, Biomass, Biooil, GC-MS","PeriodicalId":374590,"journal":{"name":"Proceedings of the International Conference on Sustainable Biomass (ICSB 2019)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115363386","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}
Pub Date : 2021-06-04DOI: 10.2991/aer.k.210603.048
I. Gandidi, A. Wiyono, Purnawan, Amrul
{"title":"Mass Yield Improvement of Liquid Fuel from RMSW Using Long Catalyser Downstream in Stage Pyrolysis","authors":"I. Gandidi, A. Wiyono, Purnawan, Amrul","doi":"10.2991/aer.k.210603.048","DOIUrl":"https://doi.org/10.2991/aer.k.210603.048","url":null,"abstract":"","PeriodicalId":374590,"journal":{"name":"Proceedings of the International Conference on Sustainable Biomass (ICSB 2019)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132173995","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}
Pub Date : 2021-06-04DOI: 10.2991/aer.k.210603.016
A. Bayhaqi, Annisa K. Fajari, D. Surinati, N. Hidayati
{"title":"Tidal Current Pattern in the Surrounding Bintan Island Waters Based on Model Simulation","authors":"A. Bayhaqi, Annisa K. Fajari, D. Surinati, N. Hidayati","doi":"10.2991/aer.k.210603.016","DOIUrl":"https://doi.org/10.2991/aer.k.210603.016","url":null,"abstract":"","PeriodicalId":374590,"journal":{"name":"Proceedings of the International Conference on Sustainable Biomass (ICSB 2019)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115055445","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}
Pub Date : 2021-06-04DOI: 10.2991/aer.k.210603.026
E. Purba, C. N. Yogia, P. R. Sari
{"title":"Biogas Purification by CO2 Reduction in Bubble Column Using Ca(OH)2 and NaOH","authors":"E. Purba, C. N. Yogia, P. R. Sari","doi":"10.2991/aer.k.210603.026","DOIUrl":"https://doi.org/10.2991/aer.k.210603.026","url":null,"abstract":"","PeriodicalId":374590,"journal":{"name":"Proceedings of the International Conference on Sustainable Biomass (ICSB 2019)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115209342","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}
Pub Date : 2021-06-04DOI: 10.2991/aer.k.210603.020
I. G. Febryano, M. Rona, A. A. Damai, Hartoyo, E. Rohana, Novriyanti
A fisherman insurance program is one of the government’s policies to protect fisherman in their work. This study aims to explain the attitude of fisherman to fisherman insurance programs. The sampling technique used is non-probability sampling using the method of judgment sampling approach, which is based on certain criteria that have been determined in advance by the researcher. The result of this research shows that the attitude of fisherman to Fisherman Insurance is between neutral and maximum attitude values. The level of attribute importance that is considered very important for fisherman is that premium subsidies are inversely proportional to the level of performance that is not good at this attribute. It needs an extension to increase the awareness of fisherman self-protection by related parties and review of the policies of fisherman insurance programs.
{"title":"Fisherman Attitude on Fisherman Insurance in Bandar Lampung City","authors":"I. G. Febryano, M. Rona, A. A. Damai, Hartoyo, E. Rohana, Novriyanti","doi":"10.2991/aer.k.210603.020","DOIUrl":"https://doi.org/10.2991/aer.k.210603.020","url":null,"abstract":"A fisherman insurance program is one of the government’s policies to protect fisherman in their work. This study aims to explain the attitude of fisherman to fisherman insurance programs. The sampling technique used is non-probability sampling using the method of judgment sampling approach, which is based on certain criteria that have been determined in advance by the researcher. The result of this research shows that the attitude of fisherman to Fisherman Insurance is between neutral and maximum attitude values. The level of attribute importance that is considered very important for fisherman is that premium subsidies are inversely proportional to the level of performance that is not good at this attribute. It needs an extension to increase the awareness of fisherman self-protection by related parties and review of the policies of fisherman insurance programs.","PeriodicalId":374590,"journal":{"name":"Proceedings of the International Conference on Sustainable Biomass (ICSB 2019)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128721492","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}
Pub Date : 2021-06-04DOI: 10.2991/aer.k.210603.053
D. Iryani, A. Cindradewi, S. B. Ginting, E. Ernawati, U. Hasanudin
{"title":"Fabrication, Characterization and Mechanical Stability Performance Test of Cellulose Acetate Membrane Filled with Lampung Natural Zeolite (Ca/LNZ)","authors":"D. Iryani, A. Cindradewi, S. B. Ginting, E. Ernawati, U. Hasanudin","doi":"10.2991/aer.k.210603.053","DOIUrl":"https://doi.org/10.2991/aer.k.210603.053","url":null,"abstract":"","PeriodicalId":374590,"journal":{"name":"Proceedings of the International Conference on Sustainable Biomass (ICSB 2019)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124865882","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}
Pub Date : 2021-06-04DOI: 10.2991/aer.k.210603.013
E. Widiastuti, V. O. Indraswati, I. G. Febryano, Hartoyo, Supono
Community access to consumed water in most coastal areas is still limited, which is one of the causes of the low level of welfare. The aim of the study was to explain the perceptions of coastal communities in Dente Teladas Village of Tulang Bawang District-Lampung Province towards the provision of water facilities, infrastructure, and institutional effectiveness. The data collection used purposive sampling technique with questionnaire from 100 respondents of beneficary community and other related stakeholders. Obtaining data were analyzed with Likert scale and described for the perception of the provision of water facilities, infrastructure, and institutional effectiveness. The results of the study indicated that the community's perception of the facilities and infrastructure was good, the community had willingness to pay contributions, and management institution was effectively run. This could be seen from the existence of norms, organizations which actively run and institutionalized supported by the capacity of administrators and members, level of trust, level of compliance, level of participation, and high level of public understanding of the applicable rules. In addition, government policies, management policies, strengthening institutional structures, programs to increase the capacity of managers and rehabilitation of water facilities and infrastructure also increased the effectiveness of existing institutions. It was nationally expected then to accelerate the development of water facilities and infrastructure in coastal areas, therefore every coastal community could get access to consumable/drinking water and in return could improve their welfare. Keywords: Institutions, community-based consumable freshwater management, coastal areas
{"title":"Community-Based Consumable Fresh Water in Coastal Area of Dente Teladas Village, Tulang Bawang District, Lampung Province","authors":"E. Widiastuti, V. O. Indraswati, I. G. Febryano, Hartoyo, Supono","doi":"10.2991/aer.k.210603.013","DOIUrl":"https://doi.org/10.2991/aer.k.210603.013","url":null,"abstract":"Community access to consumed water in most coastal areas is still limited, which is one of the causes of the low level of welfare. The aim of the study was to explain the perceptions of coastal communities in Dente Teladas Village of Tulang Bawang District-Lampung Province towards the provision of water facilities, infrastructure, and institutional effectiveness. The data collection used purposive sampling technique with questionnaire from 100 respondents of beneficary community and other related stakeholders. Obtaining data were analyzed with Likert scale and described for the perception of the provision of water facilities, infrastructure, and institutional effectiveness. The results of the study indicated that the community's perception of the facilities and infrastructure was good, the community had willingness to pay contributions, and management institution was effectively run. This could be seen from the existence of norms, organizations which actively run and institutionalized supported by the capacity of administrators and members, level of trust, level of compliance, level of participation, and high level of public understanding of the applicable rules. In addition, government policies, management policies, strengthening institutional structures, programs to increase the capacity of managers and rehabilitation of water facilities and infrastructure also increased the effectiveness of existing institutions. It was nationally expected then to accelerate the development of water facilities and infrastructure in coastal areas, therefore every coastal community could get access to consumable/drinking water and in return could improve their welfare. \u0000 \u0000Keywords: Institutions, community-based consumable freshwater management, coastal areas","PeriodicalId":374590,"journal":{"name":"Proceedings of the International Conference on Sustainable Biomass (ICSB 2019)","volume":"53 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115749159","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}
Pub Date : 2021-06-04DOI: 10.2991/aer.k.210603.023
A. Ulvan, Muhamad Rifky Maulana, M. A. Batubara, Nora Aditiyan, Melvi
Gunung Anak Krakatau is one of the active volcanoes in Indonesia. In October – December 2018, it erupted 156 times by releasing incandescent materials and toxic gases in the form of sulphur dioxide (SO2), carbon dioxide (CO2), and hydrogen sulphide (H2S) at 2 km radius. The release of SO2 gas indicates that magma is approaching the surface and puts the volcano on alert status. Finally on 22 December 2018 the continued eruption caused the flank collapse on some part of the volcano, triggered a tsunami that stroke the coastal of Lampung and Banten. This work investigated the SO2 gas monitoring technology using Differential Optical Absorption Spectroscopy (DOAS). The study specifically concerns on the working principles of DOAS, optimization of DOAS with optical bandpass filters and amplifiers, as well as the implementation architecture design of DOAS from Gunung Anak Krakatau Volcano to Hargo Pancuran Monitoring Station. Based on this study, the DOAS can be used to monitor SO2 gas by using a catadioptric telescope and the optimization works for UG11 as an optical bandpass filter and Raman Amplifier as the amplifier.
喀拉喀托火山是印度尼西亚的活火山之一。2018年10月至12月，它爆发了156次，释放出白炽物质和二氧化硫(SO2)、二氧化碳(CO2)和硫化氢(H2S)形式的有毒气体。二氧化硫气体的释放表明岩浆正在接近地表，使火山处于警戒状态。最后，在2018年12月22日，持续的喷发导致火山部分侧面塌陷，引发了海啸，袭击了楠榜和万丹海岸。本文研究了差分光学吸收光谱法(DOAS)监测二氧化硫气体的技术。具体研究了DOAS的工作原理，利用光带通滤波器和放大器对DOAS进行优化，以及从Gunung Anak Krakatau火山到Hargo Pancuran监测站的DOAS实现架构设计。在此基础上，利用反射望远镜实现了DOAS对SO2气体的监测，并对UG11作为光带通滤波器和拉曼放大器作为放大器进行了优化。
{"title":"The Technical Concept of Differential Optical Absorption Spectroscopy for SO2 Gas Spectrum Monitoring on Volcanic Ash of Gunung Anak Krakatau volcano","authors":"A. Ulvan, Muhamad Rifky Maulana, M. A. Batubara, Nora Aditiyan, Melvi","doi":"10.2991/aer.k.210603.023","DOIUrl":"https://doi.org/10.2991/aer.k.210603.023","url":null,"abstract":"Gunung Anak Krakatau is one of the active volcanoes in Indonesia. In October – December 2018, it erupted 156 times by releasing incandescent materials and toxic gases in the form of sulphur dioxide (SO2), carbon dioxide (CO2), and hydrogen sulphide (H2S) at 2 km radius. The release of SO2 gas indicates that magma is approaching the surface and puts the volcano on alert status. Finally on 22 December 2018 the continued eruption caused the flank collapse on some part of the volcano, triggered a tsunami that stroke the coastal of Lampung and Banten. This work investigated the SO2 gas monitoring technology using Differential Optical Absorption Spectroscopy (DOAS). The study specifically concerns on the working principles of DOAS, optimization of DOAS with optical bandpass filters and amplifiers, as well as the implementation architecture design of DOAS from Gunung Anak Krakatau Volcano to Hargo Pancuran Monitoring Station. Based on this study, the DOAS can be used to monitor SO2 gas by using a catadioptric telescope and the optimization works for UG11 as an optical bandpass filter and Raman Amplifier as the amplifier.","PeriodicalId":374590,"journal":{"name":"Proceedings of the International Conference on Sustainable Biomass (ICSB 2019)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129704881","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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