Journal of Energy and Safety Technology (JEST)最新文献_第4页

A Contemporary Assessment on Composite Titania onto Graphitic Carbon Nitride-Based Catalyst as Photocatalyst 以石墨化氮化碳为光催化剂的复合二氧化钛的当代评价

Journal of Energy and Safety Technology (JEST) Pub Date : 2019-06-24 DOI: 10.11113/JEST.V2N1.39

M. Azami, A. JalilA., C. Hitam, R MamatC., T. J. Siang, I. Hussain, H. Hambali

引用次数: 2

Role of Promoters in Hoisting the Catalytic Performance for Enhanced CO Methanation 促进剂在提高CO甲烷化催化性能中的作用

Journal of Energy and Safety Technology (JEST) Pub Date : 2019-06-24 DOI: 10.11113/JEST.V2N1.38

I. Hussain, A. A. Jalil, C. R. Mamat, T. J. Siang, M. Azami, H. Hambali

引用次数: 4

Hydrogen Gas Production from Gasification of Oil Palm Empty Fruit Bunch (EFB) in a Fluidized Bed Reactor 油棕空果串(EFB)流化床气化制氢研究

Journal of Energy and Safety Technology (JEST) Pub Date : 2019-06-24 DOI: 10.11113/JEST.V2N1.42

S. Shahlan, K. Kidam, T. Abdullah, M. W. Ali, L. Pejic, H. Kamarden

{"title":"Hydrogen Gas Production from Gasification of Oil Palm Empty Fruit Bunch (EFB) in a Fluidized Bed Reactor","authors":"S. Shahlan, K. Kidam, T. Abdullah, M. W. Ali, L. Pejic, H. Kamarden","doi":"10.11113/JEST.V2N1.42","DOIUrl":"https://doi.org/10.11113/JEST.V2N1.42","url":null,"abstract":"Malaysia is one of the largest producers of palm oil and this industry plays an important role in Malaysia economic growth. As this industry grows larger, a significant amount of oil palm waste is generated, creating the problem of overloading biomass waste. Since the oil palm waste has many significant uses such as empty fruit bunches (EFB), the interest in production of hydrogen gas as the renewable energy from EFB also increases. The most common and favorable thermochemical processes to produce the hydrogen gas is gasification process in fluidized bed reactor. Regardless of tremendous experimental studies done on effectiveness of using EFB for production of hydrogen, the process implementation in industry is still discouraging. This is due to lack of proven technology and high capital cost of investment. In this study, a computational modeling was developed for EFB gasification in fluidized bed gasifier using the ASPEN PLUS simulator (v. 8.8) to optimize the gasification temperature, pressure and to study the different of chemical behavior. The results indicated that increase in temperature will increases the production of hydrogen and enhances carbon conversion efficiency. The optimum temperature and pressure was 850 °C and 1.035 bar respectively. The result shows that the char was removed significantly after several gas cleaning process. The final product for purified hydrogen gas is 14.5 kg/hr which is around 21% of hydrogen yield. Based on the result, it indicates that EFB has a potential to be used as a source of energy in a future.","PeriodicalId":15706,"journal":{"name":"Journal of Energy and Safety Technology (JEST)","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86879031","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}

引用次数: 2

Concentrations of Magnesium, Calcium and Potassium in Drinking Water; A Comparison between Tap Water and Bore Water 饮用水中镁、钙、钾的含量自来水和自来水的比较

Journal of Energy and Safety Technology (JEST) Pub Date : 2019-06-24 DOI: 10.11113/JEST.V2N1.36

M. Ling, S. Anua, N. Mazlan

{"title":"Concentrations of Magnesium, Calcium and Potassium in Drinking Water; A Comparison between Tap Water and Bore Water","authors":"M. Ling, S. Anua, N. Mazlan","doi":"10.11113/JEST.V2N1.36","DOIUrl":"https://doi.org/10.11113/JEST.V2N1.36","url":null,"abstract":"Minerals content in drinking water are essential for human health. Hence, this cross sectional study aims to determine the concentration of minerals in tap water and bore water consumed among staffs and students of School of Health Sciences, Universiti Sains Malaysia Health Campus. Utilising convenience sampling method, 32 respondents were recruited into this study who agreed for home visit and completed the questionnaires. Based on availability of water samples at home (raw, boiled and filtered), 22 tap water and 10 bore water were collected into 200 ml sampling bottle, in triplicate. Concentration of minerals (magnesium, calcium and potassium) in water samples were analysed using Flame Atomic Absorption Spectrometry (FAAS). There was higher concentration of magnesium, calcium and potassium in tap water compared to bore water but the difference was statistically significance for calcium only (p=0.007). No significant differences were found in all minerals for both tap water and bore water after filtration or boiling. Concentration of minerals from filtered water samples was found to be higher in galvanised steel pipes compared to polyvinyl chloride. In conclusion, water samples provided by respondents were safe for drinking and cooking as the mineral contents for consumption are below the maximum value of Drinking Water Quality Standard.","PeriodicalId":15706,"journal":{"name":"Journal of Energy and Safety Technology (JEST)","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90918278","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}

引用次数: 8

Effect of ZSM-5 Acidity in Enhancement of Methanol-to-Olefins Process ZSM-5酸度对甲醇制烯烃过程强化的影响

Journal of Energy and Safety Technology (JEST) Pub Date : 2019-06-24 DOI: 10.11113/JEST.V2N1.37

H. Hambali, A. A. Jalil, T. J. Siang, A. Abdulrasheed, N. Fatah, I. Hussain, M. Azami

引用次数: 6

Lignin-Treated-Trichloromethylsilane Sorbent for Oil Spill Cleanup 木质素处理的三氯甲基硅烷吸附剂用于石油泄漏清理

Journal of Energy and Safety Technology (JEST) Pub Date : 2019-02-10 DOI: 10.11113/JEST.V1N2-2.30

A. AzharN., Rahman W.A.W., N. Adrus, R. A. Majid

引用次数: 4

Human Scalp Hair (HSH) Waste as an Alternative for Reducing Invasive Activity of Wild Hog: A Preliminary Study 人类头皮毛发(HSH)废物作为减少野猪入侵活动的替代品:初步研究

Journal of Energy and Safety Technology (JEST) Pub Date : 2019-02-10 DOI: 10.11113/JEST.V1N2-2.28

Nur Suraya Kamsano, J. Sohaili, Shantha Kumari Muniyandi, N. S. Supian

{"title":"Human Scalp Hair (HSH) Waste as an Alternative for Reducing Invasive Activity of Wild Hog: A Preliminary Study","authors":"Nur Suraya Kamsano, J. Sohaili, Shantha Kumari Muniyandi, N. S. Supian","doi":"10.11113/JEST.V1N2-2.28","DOIUrl":"https://doi.org/10.11113/JEST.V1N2-2.28","url":null,"abstract":"The weaknesses in the human hair waste management system has brought many environmental problems that are rarely taken into account. In most of rural areas, this waste is still being used by farmers to protect their plantation from wild hog attacks. However, this traditional practice is seem unpopular and has little exposure. Study in the past related to this waste in Malaysia is still far behind compared to other countries. Moreover, the past practices of this waste as repellent did not highlight the prior procedure and their effectiveness as pest controller to control invasive activity of wild hog. This study aims to briefly discuss on the conflict of human and wild hog, past mitigation practices, potential usage of hair waste as temporary repellent and to share the result of 5 days pilot study through field trial conducted in small orchard in Muar. In this study, fermented corn bait has been applied at the study area to increase the activities and probability of visitation of wild hog. Four (4) samples were placed in the private orchard namely (A) 5kg whole kernel corn; (B) 5kg whole kernel corn mixed with 20g of hair; (C) 5kg whole kernel corn mixed with 40g hair; and (D) 5kg whole kernel corn mixed with 60g hair. The result during feeding test is observed and analysed. Through this pilot study, it indicates the potential of hair waste application as a temporary wild hog repellent.","PeriodicalId":15706,"journal":{"name":"Journal of Energy and Safety Technology (JEST)","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80386922","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}

引用次数: 0

Enhancement of Isobutanol and 3-Methyl-1-Butanol Production Yields in Saccharomyces Cerevisiae without Genetic Modification 不经基因改造提高酿酒酵母异丁醇和3-甲基-1-丁醇产量

Journal of Energy and Safety Technology (JEST) Pub Date : 2019-02-10 DOI: 10.11113/JEST.V1N2-2.26

N. Ramli, R. A. Rahman, R. Illias

{"title":"Enhancement of Isobutanol and 3-Methyl-1-Butanol Production Yields in Saccharomyces Cerevisiae without Genetic Modification","authors":"N. Ramli, R. A. Rahman, R. Illias","doi":"10.11113/JEST.V1N2-2.26","DOIUrl":"https://doi.org/10.11113/JEST.V1N2-2.26","url":null,"abstract":"Bio-based fuel produced from the renewable resources is efficiently overcome the shortcomings of fossil fuels. Several factors such as the increasing awareness on environmental problems, fossil fuel prices and the sustainability of energy has encouraged the initiative in finding another source of transportation fuels. Higher alcohols have proved to be a better candidate to replace gasoline as vehicle fuel due to characteristics of higher energy content, low solubility in water, lower vapor pressure and higher blending ability with gasoline. Biologically, isobutanol and 3-methyl-1-butanol are produced through the fermentation of renewable feedstock with microorganism. Saccharomyces cerevisiae is known to be able to produce isobutanol and 3-methyl-1-butanol titers naturally without heterologous pathways. However, the production of these alcohols by Saccharomyces cerevisiae is only in a small quantity, thus several efforts in enhancing the isobutanol and 3-methyl-1-butanol yields have been conducted. In this study, the amino acids (valine and leucine) and amino acid precursor (2-ketoisovalerate) were added into the fermentation medium prior to the fermentation. The results obtained show that the supplementation of 2-ketoisovalerate and leucine individually into the fermentation broth leads to the increased in isobutanol and 3-methyl-1-butanol titers by 3.3 folds and 1.9 folds, respectively. The combination of 2-ketoisovalerate and valine increased the isobutanol yield by 4.3 folds while the 3-methyl-1-butanol was increased by 2.5 folds when supplemented with 2-ketoisovalerate and leucine. These results portray that the isobutanol and 3-methyl-1-butanol titers can be improved by manipulating several factors which is important for future production of higher alcohols.","PeriodicalId":15706,"journal":{"name":"Journal of Energy and Safety Technology (JEST)","volume":"44 48","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91468633","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}

引用次数: 0

An Analytical Modeling Approach for Performance Evaluation of Electrostatic Precipitator (ESP) 电除尘器性能评价的解析建模方法

Journal of Energy and Safety Technology (JEST) Pub Date : 2019-02-10 DOI: 10.11113/JEST.V1N2-2.33

S. F. Salleh, Afrasyab Khan, C. N. Hipolito, Lennevey Kinidi, Dayang Siti Herdawati Abang Hardin

引用次数: 2

Surface Modification of Teflonated Carbon Fabric by Ultrasound-Assisted Radiation Induced Grafting Copolymerization 超声辅助辐射诱导接枝共聚对聚四氟乙烯碳织物表面改性的研究

Journal of Energy and Safety Technology (JEST) Pub Date : 2019-02-10 DOI: 10.11113/JEST.V1N2-2.25

N. A. Zubair, M. Nasef, T. Ming, E. Abouzari‐Lotf, E. C. Abdullah

引用次数: 0