{"title":"Climate Change Mitigation in Cities: Challenges and Opportunities\u0000s","authors":"R. Balasubramanian","doi":"10.11159/icepr21.001","DOIUrl":"https://doi.org/10.11159/icepr21.001","url":null,"abstract":"","PeriodicalId":358887,"journal":{"name":"Proceedings of the 7th World Congress on New Technologies","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125918487","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}
Abdalrahman Alsulaili, Dalal Alsuwail, Amina A Helal, Shoug Al Dabbous, Rahaf Al Omar, M. Hamadah
{"title":"Devulcanized Rubber a Solution for Scrap Tire","authors":"Abdalrahman Alsulaili, Dalal Alsuwail, Amina A Helal, Shoug Al Dabbous, Rahaf Al Omar, M. Hamadah","doi":"10.11159/icepr21.113","DOIUrl":"https://doi.org/10.11159/icepr21.113","url":null,"abstract":"","PeriodicalId":358887,"journal":{"name":"Proceedings of the 7th World Congress on New Technologies","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125403143","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}
Inglid Silva, T. Veriato, Rafael Silva, M. Cândido, Leandro Leandro, M. Castilho
{"title":"Antimicrobial Activity of Nanopharmaceutical on Klebsiella Pneumoniae Strains","authors":"Inglid Silva, T. Veriato, Rafael Silva, M. Cândido, Leandro Leandro, M. Castilho","doi":"10.11159/icnfa21.115","DOIUrl":"https://doi.org/10.11159/icnfa21.115","url":null,"abstract":"","PeriodicalId":358887,"journal":{"name":"Proceedings of the 7th World Congress on New Technologies","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115110672","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":"Concept for an International Fieldcourse in Sustainable Mining under\u0000Arctic Conditions","authors":"E. Takaluoma, R. Oikari","doi":"10.11159/icepr21.116","DOIUrl":"https://doi.org/10.11159/icepr21.116","url":null,"abstract":"","PeriodicalId":358887,"journal":{"name":"Proceedings of the 7th World Congress on New Technologies","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123147537","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}
Elio Conradi Junior, A. C. G. Júnior, Juliano Zimmermann, D. Schwantes, Carlos Daniel Zenni, Guilherme Lindner Ziemer, V. H. D. Oliveira, F. Dudczak
{"title":"Renewable Eco-Friendly Activated Biochar from Tobacco: Chlorpyrifos\u0000Removal Studies","authors":"Elio Conradi Junior, A. C. G. Júnior, Juliano Zimmermann, D. Schwantes, Carlos Daniel Zenni, Guilherme Lindner Ziemer, V. H. D. Oliveira, F. Dudczak","doi":"10.11159/icepr21.111","DOIUrl":"https://doi.org/10.11159/icepr21.111","url":null,"abstract":"","PeriodicalId":358887,"journal":{"name":"Proceedings of the 7th World Congress on New Technologies","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128105943","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}
T. Tabakova, P. Petrova, Y. Karakirova, A. Venezia, L. Liotta, Lyuba Ilieva
{"title":"Catalytic Complete Oxidation Of Benzene Over Pd Catalysts: Support Effect","authors":"T. Tabakova, P. Petrova, Y. Karakirova, A. Venezia, L. Liotta, Lyuba Ilieva","doi":"10.11159/icepr21.108","DOIUrl":"https://doi.org/10.11159/icepr21.108","url":null,"abstract":"","PeriodicalId":358887,"journal":{"name":"Proceedings of the 7th World Congress on New Technologies","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115407708","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}
W. Lee, Jae-Hoon Hwang, Saisaban Fahad, H. Ryu, Kelsey L. Rodriguez, J. Domingo, A. Kushima
Microbial electrolysis cells (MECs) can produce hydrogen gas from organic compounds in an energy-efficient way by taking advantage of the potential generated by microorganisms. Human urine has been successfully used as an electrolyte and organic substrate in bioelectrochemical systems (BESs) mainly due of its unique properties such as high conductivity in a solution which can reduce the ohmic losses and improve BES output. However, the hydrogen evolution reaction (HER) in MECs using urine is a slow process and thus requires the development of catalysts in a cathode. In this study, a novel molybdenum disulfide (MoS2) nano-carbon (NC) coated cathode was developed for urine treatment and improved hydrogen production in a microbial electrolysis cell (MEC) with different experiments ranging from 2-6 times diluted urine. MoS2 nanoparticles were electrodeposited on the NC coated cathodes with -100, -150 and -200 μA cm and their performance was compared to NC only and carbon cloth (CC) cathodes in the MEC. The MoS2-NC200 (electrodeposition at -200 μA cm) cathode produced slightly higher hydrogen rates (0.061 ± 0.004 m H2 m MEC d) compared to MoS2-NC100 (0.058 ± 0.002 m H2 m MEC d) under two times diluted urine. The MoS2-NC200 cathode had significantly higher (~31%) hydrogen production than the carbon cloth (CC) cathode with the same dilution of urine. The reproducibility tests of the MoS2-NC cathodes after a short MEC operation period (~ 5 cycles) showed a stable MoS2 coating on the NC cathodes. Maximum ammonia-nitrogen (NH3-N) and phosphorus (PO4-P) removal with varying dilution factors was 68.7 ± 0.1% and 98.6 ± 0.3%, respectively. Some of the exoelectrogenic bacteria were identified as members of the Clostridia and Bacteroidetes taxa. The newly fabricated MoS2-NC cathode will be a suitable strategy for microbial acclimation to urine in a MEC for a novel biotransformation process within the water-energy nexus.
微生物电解电池(MECs)可以利用微生物产生的潜力，以一种节能的方式从有机化合物中产生氢气。人类尿液已成功地用作生物电化学系统(BESs)中的电解质和有机底物，主要是因为其独特的性质，如溶液中的高导电性，可以减少欧姆损失并提高BES的输出。然而，在mec中使用尿液进行析氢反应是一个缓慢的过程，因此需要在阴极上开发催化剂。在这项研究中，开发了一种新型的二硫化钼(MoS2)纳米碳(NC)涂层阴极，用于在微生物电解池(MEC)中处理尿液并提高氢气产量，不同的实验范围为2-6倍稀释的尿液。在-100、-150和-200 μA cm的纳米二氧化mos2阴极上电沉积纳米二氧化mos2，并在MEC中比较了纳米二氧化mos2阴极与纯纳米二氧化mos2阴极和碳布阴极的性能。MoS2-NC200(电沉积在-200 μA cm)阴极产生的氢气速率(0.061±0.004 m H2 m MEC d)略高于MoS2-NC100(0.058±0.002 m H2 m MEC d)。在尿稀释度相同的情况下，MoS2-NC200阴极的产氢率显著高于碳布阴极(CC)(~31%)。经过短时间的MEC操作周期(~ 5个循环)，对MoS2-NC阴极的重复性测试表明，在NC阴极上有稳定的MoS2涂层。不同稀释倍数对氨氮(NH3-N)和磷(PO4-P)的最大去除率分别为68.7±0.1%和98.6±0.3%。一些产电细菌被鉴定为梭状芽胞杆菌和拟杆菌门类群的成员。新制备的MoS2-NC阴极将成为MEC中微生物适应尿液的合适策略，以实现水能关系中的新型生物转化过程。
{"title":"Recycling Urine for Hydrogen Production in a Microbial Electrolysis\u0000Cell (MEC) System Using a Novel Mos2 Nano Carbon Coated Electrode\u0000s","authors":"W. Lee, Jae-Hoon Hwang, Saisaban Fahad, H. Ryu, Kelsey L. Rodriguez, J. Domingo, A. Kushima","doi":"10.11159/icepr21.002","DOIUrl":"https://doi.org/10.11159/icepr21.002","url":null,"abstract":"Microbial electrolysis cells (MECs) can produce hydrogen gas from organic compounds in an energy-efficient way by taking advantage of the potential generated by microorganisms. Human urine has been successfully used as an electrolyte and organic substrate in bioelectrochemical systems (BESs) mainly due of its unique properties such as high conductivity in a solution which can reduce the ohmic losses and improve BES output. However, the hydrogen evolution reaction (HER) in MECs using urine is a slow process and thus requires the development of catalysts in a cathode. In this study, a novel molybdenum disulfide (MoS2) nano-carbon (NC) coated cathode was developed for urine treatment and improved hydrogen production in a microbial electrolysis cell (MEC) with different experiments ranging from 2-6 times diluted urine. MoS2 nanoparticles were electrodeposited on the NC coated cathodes with -100, -150 and -200 μA cm and their performance was compared to NC only and carbon cloth (CC) cathodes in the MEC. The MoS2-NC200 (electrodeposition at -200 μA cm) cathode produced slightly higher hydrogen rates (0.061 ± 0.004 m H2 m MEC d) compared to MoS2-NC100 (0.058 ± 0.002 m H2 m MEC d) under two times diluted urine. The MoS2-NC200 cathode had significantly higher (~31%) hydrogen production than the carbon cloth (CC) cathode with the same dilution of urine. The reproducibility tests of the MoS2-NC cathodes after a short MEC operation period (~ 5 cycles) showed a stable MoS2 coating on the NC cathodes. Maximum ammonia-nitrogen (NH3-N) and phosphorus (PO4-P) removal with varying dilution factors was 68.7 ± 0.1% and 98.6 ± 0.3%, respectively. Some of the exoelectrogenic bacteria were identified as members of the Clostridia and Bacteroidetes taxa. The newly fabricated MoS2-NC cathode will be a suitable strategy for microbial acclimation to urine in a MEC for a novel biotransformation process within the water-energy nexus.","PeriodicalId":358887,"journal":{"name":"Proceedings of the 7th World Congress on New Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116919070","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":"Hydrogen Production via Electrocatalysis: From Nanoclusters to\u0000Single Atoms","authors":"Zhipeng Yu, Junyuan Xu, Lifeng Lifeng","doi":"10.11159/icnfa21.003","DOIUrl":"https://doi.org/10.11159/icnfa21.003","url":null,"abstract":"","PeriodicalId":358887,"journal":{"name":"Proceedings of the 7th World Congress on New Technologies","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125564519","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}
A. B. Seidaliyeva, G. Niyazova, E. Kopishev, E. Vitulyova, S. Kabdushev, S. Baipakbayeva, A. Bakirov, I. Suleimenov
{"title":"Small Green Energy: Implementation through Gamification of the\u0000Educational Process","authors":"A. B. Seidaliyeva, G. Niyazova, E. Kopishev, E. Vitulyova, S. Kabdushev, S. Baipakbayeva, A. Bakirov, I. Suleimenov","doi":"10.11159/icert21.117","DOIUrl":"https://doi.org/10.11159/icert21.117","url":null,"abstract":"","PeriodicalId":358887,"journal":{"name":"Proceedings of the 7th World Congress on New Technologies","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121054974","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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