Haku
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A review on recent developments in fused deposition modeling and large-scale direct pellet extrusion of polymer composites
(2020)
Fused deposition modeling (FDM) and large-scale direct pellet extrusion has a potential on reducing material waste, energy consumption, and processing time compared to traditional manufacturing processes. However, these ...
Food adulteration and unethical use of formalin
(2020)
Food adulteration has become a global problem. Adulteration is not only disregarding the hu-man rights for safe food, but also a serious threat to public health with numerous acute and chronic diseases. The physical and ...
Waste valorization in the alcohol beverage industry : Applications for co-product streams of beer breweries and whisky distilleries
(2020)
The production processes of whisky distilleries and beer breweries are explained and compared. The resulting waste streams are considered regarding their chemical and biological properties. A review is done on current and ...
Plastic bags – the main culprit in plastic pollution?
(2020)
In some people’s mindset, consumption of plastic bags is the root of plastic pollution and natural hazards despite there has been very few evidence or numeric figures to support it. Because of that, this thesis has been ...
Tannin derivatives as potential materials : A review
(2020)
Biobased materials are leading a new trend in the development of potential applications nowadays. In this connection, sustainable green chemistry is promoted in public awareness. One of the best candidates in this concept ...
Waste management and sustainable development assessment : Three cases on improving the international students’ attitude on waste sorting in Kokkola
(2020)
Waste management, especially plastic waste is a huge topic nowadays; however, Finland is among the best-applied waste-controlling-system countries in the world. As more foreigners are coming to Finland every year, it is ...
Hydrogen : As a future energy source
(2020)
This thesis asks the question of whether hydrogen is a viable source of energy to replace fossil fuels. Hydrogen is a zero-carbon energy source as it only releases heat and water. It is also the most abundant element ...