An Overview of Geology, Hydrogeology and Open Pit Mining Perspective of the Phulbari Gondwana Coal D

Corresponding Author : Mohammed Omar Faruque (faruque_pge@yahoo.com)

Abstract :

The Phulbari coal deposit is one of the largest coal reserves in NW Bangladesh. The country requires exploring this resource to overcome the present energy crisis. Two types of mining methods-open-pit and underground, might be considered for the exploration of coal worldwide. However, depths of the coal seam, geological, and hydrogeological circumstances of the Phulbari area vigorously disfavor open-pit mining. In this article, geology and hydrogeology of the area have been reviewed first, and then Boundary Element Method (BEM) numerical…

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Clinical Waste Management in Sylhet City, Bangladesh

Corresponding Author : Husna Ara Moriom (ikbal87@yahoo.com)

Abstract :

The scenario of clinical waste disposal system is simply threatening to our environment and due to increasing health facility, production of clinical waste is also increasing, is therefore, becoming a matter of great concern to manage this waste properly. The objectives of the study are the analysis of current disposal system of clinical waste, waste management system of Sylhet City Corporation (SCC) and provide some recommendations, for the improvement of existing healthcare situation as well as reduction of environmental pollution.…

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Comparable Analysis of Engineering Properties between Crushed Hardrock Dust of Maddhyapara Granite M

Corresponding Author : Tareq-Uz-Zaman (dmfh75@yahoo.com)

Abstract :

This paper reports the experimental study undertaken to investigate some engineering properties of crushed hardrock dust of Maddhyapara Granite Mine (MGM), Dinajpur and natural sand. Engineering properties of these two materials have been compared to draw a conclusion for whether crushed hardrock dust can be used as an alternative of sand in construction work. The properties that were determined are fineness modulus, bulk specific gravity, apparent specific gravity, absorption capacity, unit weight, percentage of voids and relative density. Besides, the…

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Comparative Study of Biodiesel Preparation Methods

Corresponding Author : Kaniz Ferdous (engr_kaniz@yahoo.com)

Abstract :

Biodiesel is usually produced from food-grade vegetable oils using transesterification process. Base catalyzed transesterification reaction is widely used for biodiesel production from vegetable oil due to its faster kinetics than that of acid catalyzed process. But if free fatty acid (FFA) content in the oil is more than 2%, the base catalyzed process is not feasible. In the present paper biodiesel is prepared from non-edible oils, such as nahor seed oil (NSO) and rubber seed oil (RSO) by different methods.…

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Earthquake Vulnerability Assessment of Schools and Colleges of Sylhet, a North-eastern City of Bangl

Corresponding Author : M. Ahmed (mushtaq_cee@yahoo.com)

Abstract :

Sylhet, the north-eastern divisional city of Bangladesh, is one of the most earthquake prone areas of the country. In this paper, seismic vulnerability of the educational institutions of Sylhet city has been assessed. Rapid Visual Screening (RVS) and Modified Turkish Method have been used to evaluate the seismic vulnerability of the existing school and college buildings of the city. More than fifty schools and colleges have been surveyed with an objective to identify the most vulnerable buildings, so that retrofitting…

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Effect of Aggregate Size Distribution on Concrete Compressive Strength

Corresponding Author : M. B. Haque (bashir-cee@sust.edu)

Abstract :

Effects of size distribution of both fine and coarse aggregate and maximum coarse aggregate size on concrete compressive strength were analyzed. Other variables like water cement ratio, aggregate cement ratios were kept constant and only 28 days compressive strength was measured to evaluate the result. Mixtures of Sylhet sand and local sand were used as fine aggregate and stone chips were used as coarse aggregate. Twelve set of cylinders were crushed with different combination of fine aggregate having fineness modulus…

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Impact on sustainability of Hail Haor by integrated water management activities

Corresponding Author : Md. Misbah Uddin (mun_cee@yahoo.com.uk)

Abstract :

 This study concerns with the activities running through the projects under different wellknown institutions and the effects of the projects on sustainability of the environment of Hail haor. Hail haor is the main water reservoir of Moulobhi bazar-Sreemangal area. Hundreds of Choras (small canals in hilly area which carries water) discharge water in this haor. Huge amount of water also carries tones of sediments. This causes siltation of the haor as well as the Choras. As the depth of the…

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Influence of Weather Parameters on Red Spider Mite- A Major Pest of Tea in Bangladesh

Corresponding Author : M. Ahmed (hoquemm@gmail.com)

Abstract :

An investigation was carried out at the main farm of Bangladesh Tea Research Institute (BTRI), Srimangal, Moulvibazar, Bangladesh during 2005-2009 to find out the influence of weather parameters on the infestation of red spider mite in Bangladesh tea. Monthly data on mite population and infestation were recorded from the experimental plots with systematic sampling method. Five years meteorological data of the experimental area under the Srimangal Meteorology Station were also collected for the study from the Meteorological Department, Dhaka. The…

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Integrated Filtration System for Iron-Free Water in Small Public Buildings

Corresponding Author : M. A. Islam (msaamin-cep@sust.edu)

Abstract :

An integrated filtration system has been developed for drinking and washing purposes. This is a bench scale unit made of locally available low-cost materials. The unit can remove iron and bacteria, and produce household water maintaining the accepted standard. The operation and maintenance of the plant is simple and could be done by unskilled labor. Based on the experimental results, techno-economical evaluation has also been done for a large-scale plant. The academic building ‘B’ of SUST is selected as a…

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Redesigning Cycle Rickshaw Wheel using QFD Technique to Minimize Accident Probability and Severity

Corresponding Author : K. Nahar (mosharraf80@yahoo.com)

Abstract :

This paper reviews the possible problem areas of non-motorized means of travel in Rajshahi city, particularly cycle rickshaw, with respect to the view of rickshaw pullers and passengers; and severity analysis. Accidents are more frequent now a day mainly caused by lack of rickshaw pullers’ adequate training and design of rear wheels; according to market analysis and reviews. Violent accidents are occurred while the rickshaws drive beside one another and it is observed that they made collisions and ultimately accident…

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Renewable Energy Systems for Newly Constructed Residential Buildings in Dhaka: Barriers and Probable

Corresponding Author : Md. Mostafizur Rahman (mostafiz-arc@sust.edu)

Abstract :

Energy is essential to ensure quality of life and to underpin most of the services to our environment. Bangladesh faces unprecedented energy crisis due to high-energy demand and poor management. Low production results frequent disconnection; load shedding and most of the service sectors in the city are interrupted. Surprisingly residential sector consumes 45% electricity of Dhaka and the demand is increasing day by day. Another problem is that government introduced new satellite towns to keep pace of development and to…

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The Trends of Environment Friendly Product Design in Bangladesh

Corresponding Author : M.S.J. Hossain (shahriar.jahan.hossain@gmail.com)

Abstract :

Environmental awareness continues to rise, and customers of all types are realizing the importance of eco-friendly products which are essential to protect our planet. Eco-designer creates designs that are demanded by markets. Green design rules are needed to support the implementation of environmental features in the practical design situation. Green design or Design for Environment (DfE) is a field of product design methodology that includes tools, methods and principles to help designers reduce environmental impact. The main objective of this…

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Trends of Climatic Variables (Rainfall and Temperature) at Sylhet, Bangladesh

Corresponding Author : A.F.M. Kamal Chowdhury (aic_cee@sust.edu)

Abstract :

The study has evaluated long-term changes and trends in certain climatic variables such as rainfall and temperature at Sylhet. The data has been collected from Bangladesh Meteorological Department (BMD) and Climate Change Cell of the Department of Environment. For convenience of analysis, the available rainfall data (1960-2010) were divided into two halves 1960-1985 and 1986-2010 as well as temperature data (1948-2010) into 1948-2010 and 1980-2010. The rainfalls during the summer, critical period and monsoon are found to have an increasing…

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