Songklanakarin Journal of Science and Technology最新文献

The Usage of Banana Peels and Soybean Hull for the Treatment of Lake Water: Turbidity and Total Suspended Solids 香蕉皮和大豆壳在湖水处理中的应用:浊度和总悬浮物

Songklanakarin Journal of Science and Technology Pub Date : 2023-06-29 DOI: 10.30880/jst.2023.15.01.001

Nur Shahirah Mohd Aripen, N. A. Abdul Halim, Sabrina Saadon, Nur Danisya Akma Jamil

{"title":"The Usage of Banana Peels and Soybean Hull for the Treatment of Lake Water: Turbidity and Total Suspended Solids","authors":"Nur Shahirah Mohd Aripen, N. A. Abdul Halim, Sabrina Saadon, Nur Danisya Akma Jamil","doi":"10.30880/jst.2023.15.01.001","DOIUrl":"https://doi.org/10.30880/jst.2023.15.01.001","url":null,"abstract":"Lake water getcontaminate due to the growth of population and modernization which causing problems like sewage disposal has a high-volume and low-strength wastewater that can be reused for many purposes after being treated. It is crucial for wastewater to go through wastewater treatment to improves the quality of water where one of the processes involved is coagulation yet using conventional coagulant leaves excess heavy metal in the water causes in the absence of green chemistry. Chemical coagulants may have an adverse effect on the consumer and the environment such as aluminum build up in the environment, as well as have a harmful influence on the human body, resulting in Alzheimer's disease. The use of natural coagulants can be a secure replacement for chemical coagulants. Therefore, this study was conducted to reduce the usage of chemicals in the coagulation process by using natural coagulant of banana peels and soybean hulls. The main aim of this study is to investigate the effect of natural coagulant for wastewater treatment of lake water. Banana peels and soybean hulls were the main materials in making a plant-based coagulant by drying, grinding, and sieving. Jar test was carried out to investigate the effectiveness of natural coagulant by determining their turbidity and total suspended solids.It was found that banana peels perform effectively at a dosage of 400mg/L with turbidity removal achieved is almost 50%. On the other hand, soybean hulls work effectively at a dosage of 600mg/L with turbidity removal achieved is 54%. Based on the result, it is shown that using banana peels as a natural coagulant has effectively reduced the turbidity and total suspended solids of lake water with the optimum number of dosages of 600mg/L.","PeriodicalId":21913,"journal":{"name":"Songklanakarin Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78609152","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

The Photocatalytic Activity of Green Zinc Oxide Nanoparticles in The Treatment of Aerobically Palm Oil Mill Effluent 绿色氧化锌纳米颗粒处理好氧棕榈油厂废水的光催化活性

Songklanakarin Journal of Science and Technology Pub Date : 2023-06-29 DOI: 10.30880/jst.2023.15.01.002

Dilaeleyana Abu Bakar Sidik, N. Hairom, Aniq Ikhmal Rozman, Mohamad Jauhar Shaqili Johari, Aida Muhammad

{"title":"The Photocatalytic Activity of Green Zinc Oxide Nanoparticles in The Treatment of Aerobically Palm Oil Mill Effluent","authors":"Dilaeleyana Abu Bakar Sidik, N. Hairom, Aniq Ikhmal Rozman, Mohamad Jauhar Shaqili Johari, Aida Muhammad","doi":"10.30880/jst.2023.15.01.002","DOIUrl":"https://doi.org/10.30880/jst.2023.15.01.002","url":null,"abstract":"Traditional treatment of aerobically palm oil mill effluent (A-POME) is incapable of removing the colour and organic load that does not exceed the discharge standard limit to the stream channel. Green synthesis nanoparticles (NPs) provide a significant potential for substantial performance in the photocatalytic degradation of high-strength wastewater. Therefore, the current project's goal is to investigate the photocatalytic degradation performance of A-POME in the addition of green Zinc Oxide Cymbopogon Citratus (ZnO–CC) NPs in terms of chemical oxygen demand (COD), turbidity, and colour removal. The outcomes showed that pH 8 and a ZnO-CC NPs loading of 0.3g/L was ideal for the photocatalytic degradation of A-POME with a significant percentage reduction of turbidity (68.03%), colour (48.11%), and COD (75.4%). The equilibrium data revealed a better fit Langmuir-Hinshelwood models with higher R2 and K values of 0.9906 and 0.0225, respectively. Increased ZnO–CC NPs loading in alkaline medium aided in the breakdown of A-POME pollutants by increasing the surface area accessible for UV light adsorption during the photocatalytic process. Thus, the finding from this study can assist the palm oil mill sector in improving A-POME treatment to provide high-quality treated effluent.","PeriodicalId":21913,"journal":{"name":"Songklanakarin Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77155723","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

Rheological Study of Formate (Nacl) and Ethylene Glycol Based Drilling Fluid Using MATLAB 基于MATLAB的甲酸盐/乙二醇基钻井液流变学研究

Songklanakarin Journal of Science and Technology Pub Date : 2023-06-29 DOI: 10.30880/jst.2023.15.01.005

Bilal Sabiu, A. Bello, H.A. Adebisi

{"title":"Rheological Study of Formate (Nacl) and Ethylene Glycol Based Drilling Fluid Using MATLAB","authors":"Bilal Sabiu, A. Bello, H.A. Adebisi","doi":"10.30880/jst.2023.15.01.005","DOIUrl":"https://doi.org/10.30880/jst.2023.15.01.005","url":null,"abstract":"Non-Newtonian models are used in describing the rheology of drilling fluids. Models, such as Power Law, Bingham Plastic, and the Hershel-Buckley model are used to predict drilling fluid behaviour. Selection of the best rheological model that accurately represents the shear stress-shear rate data is optimal in determining fluid use and predicting realistic rheological behaviour. This research is aimed at studying the best rheology model to fit collected data from sodium chloride (NaCl) and ethylene glycol (EG) based drilling fluid. The assessment utilized a total of ten sets of experimental viscometry data from laboratory-formulated drilling fluid samples A to J with the varying volume of formate sodium chloride (NaCl) and ethylene glycol (EG). Using Equations relating shear rates to shear stress, MATLAB non-linear regression approach was used to determine the best of the three rheological models to fit the experimental. The Root square (R2), Adjusted Root square (Adj R2), and Root Mean Square Error (RMSE) were used in determining the goodness of fit and degree of deviation of the experimental data. data. High concentrations of both NaCl and ethylene glycols in the formulation provide a better shear rate shear stress fit. Although the ethylene glycol presence may have account for the improved fit, as Sample E, F and G despite containing high volume of the formate NaCl, the data where not effectively fitted by the models. From the results, the power law model was the least suitable with an R2 value of 0.881-0.956, Adj R2 83-96%, and a poor RSME in the range 2-9. The Herschel-Bulkley model showed an improved fit for the fluids with an R2 0.897-0.973, Adj R287- 98%, and a better RSME <3. this model also shows a good shear thinning behaviour from its three parameter consistency (n) index values. The Bingham plastic model best fits the rheology of the drilling fluid data R2 0.93-0.99, Adj R2 93-98%, and RSME of <2.","PeriodicalId":21913,"journal":{"name":"Songklanakarin Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90369083","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

Application of Exponentially Fitted Collocation Algorithm for Solving nth-Order Fredholm Integrodifferential Equations 指数拟合搭配算法在求解n阶Fredholm积分微分方程中的应用

Songklanakarin Journal of Science and Technology Pub Date : 2023-06-29 DOI: 10.30880/jst.2023.15.01.004

F. Iyanda, Taiwo. O. Adebayo

引用次数: 0

The Economics of Network Reconfiguration and Shunt Compensation on a 33 kV Distribution Network 33kv配电网重构与并联补偿的经济性研究

Songklanakarin Journal of Science and Technology Pub Date : 2023-06-29 DOI: 10.30880/jst.2023.15.01.003

M. Lawal, A. Olawuyi, Kayode Awomolo, A. Jimoh

引用次数: 0

Comparison of Approximate Methods for Solving Delay Differential Equations with Initial value problems 求解具有初值问题的时滞微分方程的近似方法比较

Songklanakarin Journal of Science and Technology Pub Date : 2023-02-28 DOI: 10.20428/jst.v27i2.2054

Hamood. M. Yousef, S. Alzaeemi

引用次数: 0

Land mines detection, mapping and clearance using Quadcopter in Yemen: A perspective study 也门使用四轴飞行器进行地雷探测、测绘和清除:一项远景研究

Songklanakarin Journal of Science and Technology Pub Date : 2023-02-28 DOI: 10.20428/jst.v27i2.2053

Shawqi Alwatiri, Zakarya Omar, Y. A. Algabri

引用次数: 0

ERPs in Higher Education Institutions: Motivations, Challenges, and Success Factors 高等教育机构的erp:动机、挑战和成功因素

Songklanakarin Journal of Science and Technology Pub Date : 2023-02-28 DOI: 10.20428/jst.v27i2.2051

Abdulsalam K. Alhazmi, Nasr Alsakkaf, Mohammed Motahar, Ghada M. Alqubati

{"title":"ERPs in Higher Education Institutions: Motivations, Challenges, and Success Factors","authors":"Abdulsalam K. Alhazmi, Nasr Alsakkaf, Mohammed Motahar, Ghada M. Alqubati","doi":"10.20428/jst.v27i2.2051","DOIUrl":"https://doi.org/10.20428/jst.v27i2.2051","url":null,"abstract":"Enterprise Resource Planning Systems (ERPs) are of vital importance to all institutions, especially those involved in higher education (HEIs). However, the level of their implementation among these institutions has shown poor results. Currently, higher education institutions in Malaysia have yet to explore factors leading to the successful implementation of ERPs. There is a lack of research on ERP systems implemented in HEIs, especially regarding their success factors. As such, a literature review was conducted on ERPs in higher education institutions, discussing the advantages of different systems; their obstacles to implementation; and their success factors in HEIs. This review concluded with two theories by which to define the most critical and impactful factors to these systems' success. It is hoped that this review will help HEIs to understand the factors that might lead to the successful implementation of ERPs. In addition, implementing ERPs successfully in higher education will help develop a global competitive advantage, as well as affect the satisfaction levels of stakeholders in HEIs. Whilst investments in ERP systems by modern organisations are becoming increasingly common – especially amongst higher education institutions - the lack of previous empirical research in this environment has neglected the potential benefits of these systems.","PeriodicalId":21913,"journal":{"name":"Songklanakarin Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88921905","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: 1

Resource Allocation in Fog Computing: A Systematic Review 雾计算中的资源分配:系统综述

Songklanakarin Journal of Science and Technology Pub Date : 2023-02-28 DOI: 10.20428/jst.v27i2.2052

Asma'a Hassan Salem, Ghaleb H. Algaphari

引用次数: 1

The Effect of Using Social Engineering for Cybersecurity on the Internet of Things Environment 物联网环境下网络安全社会工程的应用效果

Songklanakarin Journal of Science and Technology Pub Date : 2023-02-28 DOI: 10.20428/jst.v27i2.2055

Meiad Jrad Hamood Aljrad, Kawther A. Al-Dhlan

{"title":"The Effect of Using Social Engineering for Cybersecurity on the Internet of Things Environment","authors":"Meiad Jrad Hamood Aljrad, Kawther A. Al-Dhlan","doi":"10.20428/jst.v27i2.2055","DOIUrl":"https://doi.org/10.20428/jst.v27i2.2055","url":null,"abstract":"Although the Internet of Things (IoT) developers view human users as the weakest cybersecurity link and potentially a deciding factor in IoT security, IoT devices are exposed to a variety of security flaws and vulnerabilities, which most social engineers take advantage of to launch several data-collection attacks. For various purposes, this study looked at improving data security on MySQL databases and web pages by using TSL encryption protocols and the two algorithms (RSA & AES) that correlate with the Internet of Things environment and enable user authentication. The implementation was done on the proposed models and encryption methods used. This study aimed to protect the information that is shared on the Internet and connect IoT devices in a secure environment. The results revealed that the proposed study increased the level of protection with the help of complex conditions specified when registering the user and protecting it against attacks. As a result, one of the most important events that came true is the existence of cybersecurity. It is expected that this research will enhance the understanding of the IoT environment and exploit social engineering attacks to impose security on the IoT environment and preserve the rights of human users.","PeriodicalId":21913,"journal":{"name":"Songklanakarin Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90229471","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