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1.
SCIENCE AND SCIENCE FICTION: A VIEW INTO THE FUTURE
Primož Hren, 2012, undergraduate thesis

Abstract: Nowadays the fine line between science and science fiction is unclear. What was science fiction few years ago is now a reality. Technology is advancing with incredible speed, and the possibilities are limitless. In my diploma thesis I will look into technologies that are found in the works of science fiction. I will describe the technologies as they are shown in the works I have chosen. One of my sources is the film I Robot. I will describe the advanced technologies, present their reality and with the help of literature and other sources estimate how long will they belong into domain of science fiction. My primary sources besides the film I Robot are the novels Foundation and Earth written by Isaac Asimov and Benford’s Across the Sea of Suns. The objective of my diploma thesis is to present the importance of technology for sci-fi literature and to show that the line between science and science fiction is unclear.
Keywords: science, science fiction, advanced technology, technology development, the line between science and science fiction
Published: 27.03.2012; Views: 2020; Downloads: 111
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2.
Laundry wastewater treatment using coagulation and membrane filtration
Sonja Šostar-Turk, Irena Petrinić, Marjana Simonič, 2005, original scientific article

Abstract: This paper presents the results obtained from laundry wastewater treatment using conventional methods namely precipitation/coagulation and the flocculation process with adsorption on granular-activated carbon (GAC) and an alternative method, membrane filtrations, namely ultrafiltration (UF) and reverse osmosis (RO). Chemical analyses showed that parameter values of untreated wastewater like temperature, pH, sediment substances, total nitrogen and phosphorous, COD, BOD5, and the amount of anion surfactants had been exceeded in regard to Slovenian regulation. These regulations can be used as requirements for wastewater reuse and make treated wastewater an available source for the existing water supply. The study of conventional treatment was based on a flocculation with Al2(SO4)3 18H2O and adsorption on GAC. Membrane filtrations were studied on a pilot wastewater treatment plant: ultrafiltration (UF) and reverse osmosis (RO) units. The membranes used in this experiment were ceramic UF membrane and spiral wounded - polyethersulfone- RO membranes. The quality of the wastewater was improved by both methods and the specifications of a concentration limit for emission into water were confirmed. The disadvantage of GAC is that there is no possibility of any kind of selection, which is essential for recycling and re-use, while permeate coming from RO met the required regulation as well as requirements for reusing in washing process. However, the economical analyses showed that the membrane filtrations are more expensive compared to the GAC treatment process.
Keywords: laundries, washing of textiles, waste waters, advanced oxidation processes, membrane technology, membrane filtration, coagulation
Published: 01.06.2012; Views: 1563; Downloads: 82
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