Pub Date : 2011-09-01DOI: 10.1109/NATPC.2011.6136397
Nadhrah Mohd Jamaludin, A. Rani
The process cycle time in injection moulding process depends significantly on the cooling time of the plastic part, which is facilitated by the cooling channels in the injection mould. Effective cooling channel design in the mould is important because it not only affects cycle time but also the part quality. Conventional cooling channels are normally made of straight drilled holes in the mould, which have limitations in geometric complexity as well as cooling fluid mobility within the injection n mould. Over the years, conformal cooling techniques are being introduced as effective alternative to conventional cooling. Many process of Rapid Tooling (RT) have been proven useful for designing the conformal cooling channels to enhance the cooling time for injection moulding process. Nevertheless, no studies had been published where the additive fabrication technique of three-dimensional printer (3DP), has been used to make an injection molding tools extended to the optimum configuration of fin trees in cooling channels of injection molding process. At one point, the cooling effectiveness of the fin tree would approach an asymptotic limit. Further attempts at improvement would not give benefits commensurate with the required effort. To identify this optimum solution is the ultimate objective of the chosen research problem by combining both experimental and numerical approaches. Design of mould was carried out using commercial computer aided design software Solid Work while the part cooling time is optimized by conformal cooling channels in the mould using the ANSYS thermal analysis software.
{"title":"Optimum configuration of fin trees in cooling channels of injection moulding process","authors":"Nadhrah Mohd Jamaludin, A. Rani","doi":"10.1109/NATPC.2011.6136397","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136397","url":null,"abstract":"The process cycle time in injection moulding process depends significantly on the cooling time of the plastic part, which is facilitated by the cooling channels in the injection mould. Effective cooling channel design in the mould is important because it not only affects cycle time but also the part quality. Conventional cooling channels are normally made of straight drilled holes in the mould, which have limitations in geometric complexity as well as cooling fluid mobility within the injection n mould. Over the years, conformal cooling techniques are being introduced as effective alternative to conventional cooling. Many process of Rapid Tooling (RT) have been proven useful for designing the conformal cooling channels to enhance the cooling time for injection moulding process. Nevertheless, no studies had been published where the additive fabrication technique of three-dimensional printer (3DP), has been used to make an injection molding tools extended to the optimum configuration of fin trees in cooling channels of injection molding process. At one point, the cooling effectiveness of the fin tree would approach an asymptotic limit. Further attempts at improvement would not give benefits commensurate with the required effort. To identify this optimum solution is the ultimate objective of the chosen research problem by combining both experimental and numerical approaches. Design of mould was carried out using commercial computer aided design software Solid Work while the part cooling time is optimized by conformal cooling channels in the mould using the ANSYS thermal analysis software.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":"96 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78615212","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136404
U. Patthi, M. Awang
This paper focuses on the application of friction stir welding (FSW) as a joining process for aluminium metal matrix composite (MMC). FSW is known as a relatively new joining technique and in Malaysia the application of the technique is still in its infant stage. Among the advantages of this method compared to the conventional joining technique is that it reduces problem associated to metal re-solidification as the technique involves no melting stages. In addition the welding strength is higher; reduce in energy consumption and a longer tool life. Recently several substantial studies have been conducted to further extent the application of FSW. One of these studies is the application of FSW on newer materials such as aluminium MMC. This material has been chosen because of its ever expanding potential in the industry and its unique properties when compared to other materials. In the past, the material development was only focusing on the aerospace field applications, but recently the development of the material have been directed towards automotive, transportation, recreation and as well in the electronic industry. The objective of this paper is to analyze the microstructure and mechanical properties of the aluminium MMC joining through friction stir welding.
{"title":"Friction stir welding on aluminum 6092/sic/25p/t6 metal matrix composite: Its microstructure evolution and mechanical properties","authors":"U. Patthi, M. Awang","doi":"10.1109/NATPC.2011.6136404","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136404","url":null,"abstract":"This paper focuses on the application of friction stir welding (FSW) as a joining process for aluminium metal matrix composite (MMC). FSW is known as a relatively new joining technique and in Malaysia the application of the technique is still in its infant stage. Among the advantages of this method compared to the conventional joining technique is that it reduces problem associated to metal re-solidification as the technique involves no melting stages. In addition the welding strength is higher; reduce in energy consumption and a longer tool life. Recently several substantial studies have been conducted to further extent the application of FSW. One of these studies is the application of FSW on newer materials such as aluminium MMC. This material has been chosen because of its ever expanding potential in the industry and its unique properties when compared to other materials. In the past, the material development was only focusing on the aerospace field applications, but recently the development of the material have been directed towards automotive, transportation, recreation and as well in the electronic industry. The objective of this paper is to analyze the microstructure and mechanical properties of the aluminium MMC joining through friction stir welding.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":"1 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78839650","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136448
M. Jafarpour, R. Nulit
An overview of biochemical and physiological consequences of the over expression of C4 -cycle genes in C3 plant are presented. The methodology, based on the evolutionary situation, has enabled enzymes involved in the C4 pathway to be expressed at high levels and in required sites in the leaves of C3 plants. Even though overproduction of a single C4 enzyme can modify the carbon metabolism of C3 plants, it does not show any positive effects on photosynthesis. Transgenic C3 plants overproducing multiple enzymes are now being produced for improving the photosynthetic performance of C3 plants. The results show that a combined over expression of C4 -cycle genes could supply additional information on whether or not these enzymes may work in concert. Single over expression of C4 -cycle genes might perturb metabolism, as all C4 enzyme also have individual functions in c3 plants. The analysis of double and multiple transformants might help to highlight the possibility of the approach to create a single cell C4 cycle in C3 crops.
{"title":"An overview of over-expression of C4-cycle enzymes into C3 plants","authors":"M. Jafarpour, R. Nulit","doi":"10.1109/NATPC.2011.6136448","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136448","url":null,"abstract":"An overview of biochemical and physiological consequences of the over expression of C<inf>4</inf> -cycle genes in C<inf>3</inf> plant are presented. The methodology, based on the evolutionary situation, has enabled enzymes involved in the C<inf>4</inf> pathway to be expressed at high levels and in required sites in the leaves of C<inf>3</inf> plants. Even though overproduction of a single C<inf>4</inf> enzyme can modify the carbon metabolism of C<inf>3</inf> plants, it does not show any positive effects on photosynthesis. Transgenic C<inf>3</inf> plants overproducing multiple enzymes are now being produced for improving the photosynthetic performance of C<inf>3</inf> plants. The results show that a combined over expression of C<inf>4</inf> -cycle genes could supply additional information on whether or not these enzymes may work in concert. Single over expression of C<inf>4</inf> -cycle genes might perturb metabolism, as all C<inf>4</inf> enzyme also have individual functions in c<inf>3</inf> plants. The analysis of double and multiple transformants might help to highlight the possibility of the approach to create a single cell C<inf>4</inf> cycle in C<inf>3</inf> crops.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":"31 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79140061","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136352
N. Kiong, Z. Akasah
Industrialized Building System(IBS) is one of the construction method that utilized where the components are manufactured in factory or in-situ. Each components are produced in a controlled and monitored environment, transported and installed with minimum workforce. This system are widely used in Malaysia and commonly there are six types of IBS which known as precast concrete frame, formwork system, steel formwork system, steel frame system, prefabricated timber system, block work systems and other innovative system. But at the same time, when a building was built by the IBS system, there are lots of maintenance problem that affect the building operation and quality. Hence, the factor that affect the quality of the IBS building should be identify and find out the solution to overcome the problem. Thus, this study will focus on poor practicing in design stage, manufacturing stage and construction stage that affect the quality of the building which leads to building maintenance. The objective of this study is to identify the factors of defect during design, construction and manufacturing stage of precast concrete that affect the quality of the building, then identify factors that are related to poor maintenance consideration during design, manufacturing and construction stage and last but not least to recommend solutions to overcome problem. All the data collection will be done in the form of questionnaire and distributed to the contractors, consultants and manufacturers. The IBS building maintenance problem in civil and architectural will be collect after the feedback from the potential respondent and analysis through the Statistical Package for the Social Science (SPSS) and note down in a check list. Hopefully from the analysis, a crucial part of the factor that affect the quality of the precast concrete building will be identified and will be supported through the propose suggestion and solution that will reduce the cost and time of maintenance in IBS building which use the precast concrete method.
{"title":"Maintenance factor for precast concrete in IBS: A review","authors":"N. Kiong, Z. Akasah","doi":"10.1109/NATPC.2011.6136352","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136352","url":null,"abstract":"Industrialized Building System(IBS) is one of the construction method that utilized where the components are manufactured in factory or in-situ. Each components are produced in a controlled and monitored environment, transported and installed with minimum workforce. This system are widely used in Malaysia and commonly there are six types of IBS which known as precast concrete frame, formwork system, steel formwork system, steel frame system, prefabricated timber system, block work systems and other innovative system. But at the same time, when a building was built by the IBS system, there are lots of maintenance problem that affect the building operation and quality. Hence, the factor that affect the quality of the IBS building should be identify and find out the solution to overcome the problem. Thus, this study will focus on poor practicing in design stage, manufacturing stage and construction stage that affect the quality of the building which leads to building maintenance. The objective of this study is to identify the factors of defect during design, construction and manufacturing stage of precast concrete that affect the quality of the building, then identify factors that are related to poor maintenance consideration during design, manufacturing and construction stage and last but not least to recommend solutions to overcome problem. All the data collection will be done in the form of questionnaire and distributed to the contractors, consultants and manufacturers. The IBS building maintenance problem in civil and architectural will be collect after the feedback from the potential respondent and analysis through the Statistical Package for the Social Science (SPSS) and note down in a check list. Hopefully from the analysis, a crucial part of the factor that affect the quality of the precast concrete building will be identified and will be supported through the propose suggestion and solution that will reduce the cost and time of maintenance in IBS building which use the precast concrete method.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":"42 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79519144","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136403
Mohamed Elhadie, A. Karim, A. Amin
In this research paper, user-friendly and accurate mathematical model for estimating the cost of end-milling of AISI D2 tool steel using Polycrystalline Cubic Boron Nitride (PCBN) cutting tool inserts is developed. Initially, the different components of machining cost were identified, followed by establishment of equations to determine their values. Then, the required experimental and non-experimental data were collected and the bottom-up approach was adopted for evaluating the cost of machining corresponding to each of fifteen experimental runs. The Response Surface Methodology (RSM) was used to develop the model in which the cost of machining is given as a function of the machining parameters; cutting speed, feed per tooth, and depth of cut, and expressed in Ringgit Malaysia per cubic cm (RM per cm)3. Analysis of Variance (ANOVA) was utilized to check the adequacy of the developed model. The developed model was found to be statistically adequate.
本文建立了用PCBN刀具刀片对AISI D2工具钢进行端铣加工成本估算的数学模型。首先，确定了加工成本的不同组成部分，然后建立了方程来确定它们的值。然后，收集所需的实验和非实验数据，采用自底向上的方法评估15次实验运行中每一次对应的加工成本。采用响应面法(RSM)建立了加工成本随加工参数变化的模型;切削速度，每齿进给量和切削深度，并以马来西亚林吉特每立方厘米(RM per cm)表示。采用方差分析(ANOVA)来检验所建立模型的充分性。所建立的模型在统计上是充分的。
{"title":"Cost model for end-milling of AISI D2 tool steel","authors":"Mohamed Elhadie, A. Karim, A. Amin","doi":"10.1109/NATPC.2011.6136403","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136403","url":null,"abstract":"In this research paper, user-friendly and accurate mathematical model for estimating the cost of end-milling of AISI D2 tool steel using Polycrystalline Cubic Boron Nitride (PCBN) cutting tool inserts is developed. Initially, the different components of machining cost were identified, followed by establishment of equations to determine their values. Then, the required experimental and non-experimental data were collected and the bottom-up approach was adopted for evaluating the cost of machining corresponding to each of fifteen experimental runs. The Response Surface Methodology (RSM) was used to develop the model in which the cost of machining is given as a function of the machining parameters; cutting speed, feed per tooth, and depth of cut, and expressed in Ringgit Malaysia per cubic cm (RM per cm)3. Analysis of Variance (ANOVA) was utilized to check the adequacy of the developed model. The developed model was found to be statistically adequate.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":"42 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78199275","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136540
M. Mathialagan, H. Ismail
Curing behaviour, tensile and morphological properties of bentonite (Bt) filled Ethylene-Propylene-Diene Monomer (EPDM) composites at various Bt loading were investigated. EPDM/Bt composites were prepared using a laboratory size two-roll mill by adding 0 to 70 part per hundred rubber (phr) of Bt. Curing time (t90) and scorch time (tS2) were reduced initially with 0 to 30 phr Bt loading and increased subsequently at 50 and 70 phr. Results obtained showed that tensile strength and elongation at break of EPDM/Bt composites were increased with incorporation of 0 to 50 phr Bt and decreased at 70 phr Bt loading, whereas the tensile modulus at 100% elongation (M100) showed an increasing trend with increasing Bt loading from 0 to 70 phr. Scanning Electron Microscope (SEM) was used to examine the morphology of tensile fractured surface which revealed the good interaction between Bt particles and EPDM to an optimum Bt loading of 50 phr and agglomeration of Bt particles at 70 phr.
{"title":"The effect of bentonite loading on the curing, tensile and morphological properties of Ethylene-Propylene-Diene Monomer (EPDM) composites","authors":"M. Mathialagan, H. Ismail","doi":"10.1109/NATPC.2011.6136540","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136540","url":null,"abstract":"Curing behaviour, tensile and morphological properties of bentonite (Bt) filled Ethylene-Propylene-Diene Monomer (EPDM) composites at various Bt loading were investigated. EPDM/Bt composites were prepared using a laboratory size two-roll mill by adding 0 to 70 part per hundred rubber (phr) of Bt. Curing time (t90) and scorch time (tS2) were reduced initially with 0 to 30 phr Bt loading and increased subsequently at 50 and 70 phr. Results obtained showed that tensile strength and elongation at break of EPDM/Bt composites were increased with incorporation of 0 to 50 phr Bt and decreased at 70 phr Bt loading, whereas the tensile modulus at 100% elongation (M100) showed an increasing trend with increasing Bt loading from 0 to 70 phr. Scanning Electron Microscope (SEM) was used to examine the morphology of tensile fractured surface which revealed the good interaction between Bt particles and EPDM to an optimum Bt loading of 50 phr and agglomeration of Bt particles at 70 phr.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":"22 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78389477","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136392
A. S. M. Yudin, V. Raghavan, M. Narahari
Knowledge of the complete history of the solid particles in the case of a fluidized bed processes is practically out of reach. In such cases the residence time distribution becomes a very important design tool since all particles that enter the system do not reside for the same period of time. Residence Time Theory deals with the estimation of the average time a particle remains in the system and is necessarily probabilistic in nature. The multi-parameter two-layer model was proposed in which it consist of six independent parameters and one dependent parameter. The effect of these parameters on the RTD function, E(θ) are studied and the model is shown to be highly versatile and capable of representing widely different mixing conditions.
{"title":"A mathematical model for residence time distribution analysis in swirling fluidized bed","authors":"A. S. M. Yudin, V. Raghavan, M. Narahari","doi":"10.1109/NATPC.2011.6136392","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136392","url":null,"abstract":"Knowledge of the complete history of the solid particles in the case of a fluidized bed processes is practically out of reach. In such cases the residence time distribution becomes a very important design tool since all particles that enter the system do not reside for the same period of time. Residence Time Theory deals with the estimation of the average time a particle remains in the system and is necessarily probabilistic in nature. The multi-parameter two-layer model was proposed in which it consist of six independent parameters and one dependent parameter. The effect of these parameters on the RTD function, E(θ) are studied and the model is shown to be highly versatile and capable of representing widely different mixing conditions.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":"30 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77119643","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136445
Goh Hui Hwang, Lee Sian Wei, K. B. Ching, Ng Suan Lin
Deciding the key location to build a wind farm is an essential element in order to obtain optimum energy production with the least cost of resources possible. A strategic location is crucial as it will ensure that turbine foundations, access roads and construction areas be provided at a reasonable cost. The location selection will also enable the authorities to predict the environmental impact to the wind farm surroundings. In this research, the AHP and Fuzzy AHP method are utilized to evaluate the priority of criteria in selecting a location for wind farm. A case study is also carried out to evaluate the wind potential on two locations, thus, implementing the TOPSIS method to choose the best wind site. The paper is arranged in five important sections that include introduction, methodology, results and analysis, discussion and conclusion as well as recommendation.
{"title":"Wind farm allocation in Malaysia based on multi-criteria decision making method","authors":"Goh Hui Hwang, Lee Sian Wei, K. B. Ching, Ng Suan Lin","doi":"10.1109/NATPC.2011.6136445","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136445","url":null,"abstract":"Deciding the key location to build a wind farm is an essential element in order to obtain optimum energy production with the least cost of resources possible. A strategic location is crucial as it will ensure that turbine foundations, access roads and construction areas be provided at a reasonable cost. The location selection will also enable the authorities to predict the environmental impact to the wind farm surroundings. In this research, the AHP and Fuzzy AHP method are utilized to evaluate the priority of criteria in selecting a location for wind farm. A case study is also carried out to evaluate the wind potential on two locations, thus, implementing the TOPSIS method to choose the best wind site. The paper is arranged in five important sections that include introduction, methodology, results and analysis, discussion and conclusion as well as recommendation.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":"66 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73382591","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136395
V. Kumar, V. Raghavan
Fluidized beds are in use for decades in various industrial as well as other areas providing better efficiency and more effectiveness for processes involved. Its application has been extended to various industrial and non-industrial processes since its advent. In due course, the change in nature and new requirements of processes have necessitated alteration in the fluidized beds for custom use. This work attempts to introduce the pros and cons of the conventional fluidized bed as well as its newer variants.
{"title":"Developments in fluidized bed technology — A review","authors":"V. Kumar, V. Raghavan","doi":"10.1109/NATPC.2011.6136395","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136395","url":null,"abstract":"Fluidized beds are in use for decades in various industrial as well as other areas providing better efficiency and more effectiveness for processes involved. Its application has been extended to various industrial and non-industrial processes since its advent. In due course, the change in nature and new requirements of processes have necessitated alteration in the fluidized beds for custom use. This work attempts to introduce the pros and cons of the conventional fluidized bed as well as its newer variants.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":"42 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74035218","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 : 2011-09-01DOI: 10.1109/NATPC.2011.6136254
D. Hasan, M. Ghengesh, M. A. Hassan, Z. Noor, A. Yuniarto, M. H. Chakrabarti, M. Islam, B. S. Ali, G. M. A. Khan
In this study, performance of a laboratory-scale submerged hollow fibre membrane to treat oily wastewater from electroplating plant was investigated. The degradation of raw oily wastewater at a hydraulic retention time (HRT) of 13.3 hours was studied. Results of the three runs showed that oil and grease (O&G) was biodegraded in the MBR system to a high extent, with removal efficiency between 91.1–98.7%.
{"title":"Use of a membrane bioreactor in effluent treatment from electroplating industry: Oil and grease","authors":"D. Hasan, M. Ghengesh, M. A. Hassan, Z. Noor, A. Yuniarto, M. H. Chakrabarti, M. Islam, B. S. Ali, G. M. A. Khan","doi":"10.1109/NATPC.2011.6136254","DOIUrl":"https://doi.org/10.1109/NATPC.2011.6136254","url":null,"abstract":"In this study, performance of a laboratory-scale submerged hollow fibre membrane to treat oily wastewater from electroplating plant was investigated. The degradation of raw oily wastewater at a hydraulic retention time (HRT) of 13.3 hours was studied. Results of the three runs showed that oil and grease (O&G) was biodegraded in the MBR system to a high extent, with removal efficiency between 91.1–98.7%.","PeriodicalId":6411,"journal":{"name":"2011 National Postgraduate Conference","volume":"12 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74712747","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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