Undergraduate Thesis

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    Open Access
    Organic Waste to Feed Production: Black Soldier Fly Rearing, Protein Production and Comparison to Conventional Feed
    (North South University, 2020) Syed Shah Nazmul Hossain; Nazmul Ahsan Khan; 1230618626
    Bangladesh is a very populous country. Different problem arise due to population. Bangladesh is in an industrial revolution. Cities here are expanding exponentially. There are different major problems in overly populated urban communities like ours. Municipal Solid Waste Management is one of them. Nutrition, food security and safety are the two major national concerns. To match our demand we are extracting more and more resources and dumping more and more wastes in the environment. Thus we are harming the balance of the nature, which can lead to catastrophe. It is now high time we make the most sustainable use of our resources and stop polluting our environment. We are dumping our municipal solid wastes now, of which most are organic kitchen wastes. These wastes are comprised of nutritional facts which are unused by human. If we can use the organic elements we dump to make feed for our poultry and cattle we can not only reduce a significant amount of waste that we dump, we can also play a role to ensure food security and safety. This will also benefit us to reduce global warming by reducing emission of greenhouse gases. This study is to prove that we can transform our organic waste into nutritional facts by using an insect which is environment friendly and with very little side effects.
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    Open Access
    Understanding the Knowledge and Awareness on Biodiversity of Tertiary Level Students in Bangladesh
    (North South University, 2019) Farkhunda Ahmed; Mohammad Sujauddin; 1230570027
    Since we are living in the era of Anthropocene where human impacts towards natural resources are inflating over time due to the excessive progress of economy, ecologically sustainable approaches are gaining more momentum nowadays to attain sustainable development. Biodiversity being one of the three principles of ecological sustainability, playing as a hub for other principles. The ongoing biodiversity degradation stands as a major hurdle in the way of attaining sustainability. Unfortunately, the existing biosphere is degrading at an alarming rate which is disrupting the balance of the natural systems. The level of knowledge and awareness among students towards biodiversity is essential for biodiversity conservation. Considering the conventional education structure of Bangladesh, tertiary level education has been playing an important role in generating new knowledge in a particular field. Interestingly, we have identified a serious gap in terms of research endeavor which addressed the magnitude of awareness and knowledge on biodiversity of tertiary level students in Bangladesh. Thus, this study attempts to find on how much our young generation knows about biodiversity. This study, first of its kind, is the initial step towards this direction. The study focuses on the response of tertiary level students which was documented using a closed format questionnaire. Consulting the available and relevant literature and discussion with the experts in this field, weight (score) was assigned to each option based on its merit. We have assumed that the students having the background of natural science have better awareness and knowledge on biodiversity than that of their non-natural science counterpart. One of the major approaches of this study was to figure out whether there are any substantial differences among the level of knowledge and awareness between these two clusters. The results indicated that there are significant differences (p<0.05) among the knowledge and awareness scores between the two clusters viz. natural and non-natural science students. However there are no significant differences when it comes to the basis of gender or the type of university (public and private). The main implication of this study suggests increasing or adding courses on the broader spectrum of environmental science and management in the curriculum of non natural science students to enrich the knowledge and awareness regarding biodiversity.
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    Open Access
    Health Status of Textile Dyeing Workers of Padma Poly Cotton Knit Fabrics Ltd: A Case Study
    (North South University, 2019) Farzana Haque; Prof. Dr. Nazmul Ahsan Khan; 1330413026
    Textile Industry plays a significant role in the economic growth of Bangladesh for the last few decades and also earned foreign currencies. A textile industry consists of knitting, dyeing, washing, production, finishing and others sectors. The working environment of the textile factories is not congenial to health as all the segments associate with chemicals that are hazardous for health. The study analyzed the health status of textile dying workers. The study has been conducted to identify the major health problems of the workers in the textile industry. So, the researcher selected the textile dying factory from the Tejgaon area of Dhaka, namely Padma PolyCotton Knit Fabrics Ltd as subject of the research. The sample consisted of 80 workers. Data were collected through personal interviews with the selected samples. It was found that work in the dying factory severely affected worker’s health, as they were restrained in a closed environment. Nature of work in dying factories created various types of health effects among the selected respondents such as headache, musculoskeletal pain, allergic reaction, Respiratory problems, Cough, Gastrointestinal problems, Psychological problems, hearing problems etc. Moreover, this study tried to find out whether they were provided with adequate training, health facilities and accessories to protect themselves from various health hazards. To accomplish the goals, this research has focused on the health status of the textile dying factory among textile workers from the selected area Tejgaon of Dhaka. The study sample consisted of 80 textile workers from the selected area. Data and responses were collected using questionnaires. The study concluded that textile dying workers of Dhaka are not conscious of physical and psychological health impacts but they did feel that its effects in both their daily lives and in the on-run. The government should take necessary action and strengthen regulations to overcome the health-related problems of textile workers so that they can contribute more for the development of the Textile industry of Bangladesh.
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    Open Access
    Prospects and Problems of Conserving Endangered wildlife Species in Bangladesh through Captive Breeding Technique
    (North South University, 2020) Sumaiya Rahman; Md. Shawkat Islam Sohel; 1411345626
    For thousands of years human species have been dominating the earth and disrupting the natural ecosystem by creating numerous chaos and destructive events after events. Habitat loss, habitat fragmentation and uncontrolled exploitation of natural resources are some vital reasons among many that are the root causes of species declination in wild. We have created immense pressure on earth’s natural system to tame our own selfish attributes which finally led to extinction of many species. Most of the Wildlife of Bangladesh is also facing similar fate. The mismanagement and over exploitation of natural resources are making the list of endangered species heavier every day. Due to these circumstances today some of the wild endangered species are brining inside captivity for their breeding because we failed to conserve them in wild. Hence, the study aims to investigate the progress and problems of those captive breeding program in Bangladesh. Bangladesh has initiated few programs of captive conservation of endangered species such as Gharial, Crocodiles, Batagurbaska, Asian Giant tortoises, Arakan Jungle kachimetc conservation in captivity. But there can be found unfortunate failures due to numerous difficulties and also success stories but in a very slow pace. Primary data based on key informant interview with semi-structured questionnaire shows that shortage of necessary funding, lack of skilled management techniques, poor conditioned space or ground, inadequate resources were manily responsible for captive breeding program failure. For example, Gharial conservation project which was an utter disappointment because the eggs got ruined for the lack of proper incubation system, on the other hand,” Batagur baska” and other four turtles conservation breeding in Bhawal has shown great progress and phenomenal success in the field of captive breeding conservation. Hence, the study calls for an urgent initiative to overcome the above mentioned problem for successful captive breeding program.
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    Open Access
    Plastic litter generation and perception- a case study from Sadarghat Launch Terminal, Bangladesh
    (North South University, 2019) Rukhser Ahmed; Md. Jakariya; 1510540626
    Globally 268,950 tonnes of plastic mass is floating into the oceans which makes it a huge global environmental issue with 31.9 million tonnes of mismanaged waste. Bangladesh being a developing economy in South Asia, inputs 17,687 tonnes of littered plastics within 50kms of its coastline only; while the total plastic input of Bangladesh by sources is still unknown. With 43 routes of 120 functioning inland marine vessels approximately, Inland water transport (IWT) sector of Bangladesh continues to be an important mode of transport of passengers and trade items. Three government institutions are responsible for managing this sector having an agency specially assigned for environmental aspects and safety. However, there is no database on the amount of plastic litter generated from marine vessels, which is a main polluting source in Buriganga River of Bangladesh. This research emerged as the first stock taking to measure litter generation from marine vessels in riverine systems. The main objective was to create a baseline for policy formulation through quantification of plastic litter. Methodology includes manually collecting and weighing wastes and tools like survey questionnaire and key informant interviews with stakeholders. 12 routes of river ways and 144 passengers as the representative sample for data analysis. According to the findings of primary data collection, the total amount of plastic wastes generated per day per route of Buriganga river from marine vessels stands at 76.6 kg and with all routes combined, total amount stands at 436.3 kg. Hence, plastic wastes generated per month turns out to be 13,089 kg and in a year its 4.78 million kg. This yearly input is 0.6% of the total mismanaged waste input of Bangladesh into the Bay of Bengal, that is 0.79 metric tons. Amount of plastic wastes generated from long routes is 47.1 kg and that of short routes is 25.5 kg. Pack of chips, pack of cigarettes, polybags, plastic bottles and containers, bottle caps made of plastics are the main littered wastes found from the launches. Lack of implementation of regulatory measures, ineffective waste management system dedicated for wastes generated from marine vessels is responsible for the worse pollution despite of locals being aware of environmental degradation. This research will be a forerunner in understanding the magnitude of the problem so that government can adopt proper unified policy for marine vessels in riverine systems.