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Denna masteruppsats syftar till utvecklandet av en industriellt, fullskalig modell över en vattenreningsprocess som syftar till simultan sulfatreduktion och tungmetallåtervinning från processvatten vid gruvdrift. Den mängd sulfat som finns tillgänglig i lakvattnet, omvandlas till vätesulfid med hjälp av sulfatreducerande bakterier (SRB). Tungmetallerna återvinns genom selektiv utfällning med hjälpThis thesis treats the development of an industrial scale models of a wastewater treatment process aiming at reducing the sulfate and heavy metal concentration in the effluent water from mining processes. The sulfate present in the process water is reduced using sulfate reducing bacteria (SRB) while the heavy metals are recovered through selective precipitation using the hydrogen sulfide produced

I denna avhandling har jag kritiserat EPI (Environmental Performance Index) och det sätt ett lands hållbarhetspolicy tenderar att mätas. Jag har granskat tidigare bortsedda aspekter av nationernas miljöpolicy och försökt föra dem fram i hopp om att dessa kommer att användas för framtida miljömätningar. Jag har också tittat på sambandet mellan jämställdhet och statlig miljö och försökt hitta empiri

Far-field three dimensional x-ray diffraction (3DXRD) data acquired by repetitive acquisitions with a beam much smaller than the sample width is sometimes referred to as scanning-3DXRD. We here analyse the scanning 3DXRD approach and present a novel reconstruction technique capable of reconstructing intra-crystal variations in crystal structure from a set of recorded 2D diffraction patterns. The m

Det finns idag robotar som är särskilt anpassade för att användas av räddningsteam i följderna av katastrofer som hjälpmedel i deras arbete att lokalisera och rädda människor instängda i trånga utrymmen. De är dock mycket dyra vilket begränsar deras användande och gör att användarna tvekar innan de skickar in en robot med risken att skada eller förlora den. Detta projekt dokumenterar det första stRobots currently exist that are specifically designed for use in the wake of disasters to help rescue teams in their work of locating and rescuing individuals trapped in confined spaces. However, they are prohibitively expensive which limits their adoption and causes the operators to think twice before they're deploying a robot with the risk of losing or damaging it. This project details the f

The adoption of the International Convention on Civil Liability for Bunker Oil Pollution Damage 2001 plugs a gap in the otherwise comprehensive international liability and compensation regime for ship-source pollution. Although liability for bunkers pollution from tankers was partially regulated by other civil liability regimes, bunker spills pollution from other types of vessels was left uncovere

This paper compares the explanation for social change that are offered by three theories of rape, all of which apply a socio-cultural and a gender perspective.

Attention to the role of religious NGOs (RNGOs) in international arenas has grown in the past decade. This study explored the role of values in the policies of RNGOs involved in humanitarian aid. It sought to compare the values of RNGOs with varying levels of involvement with the Steering Committee for Humanitarian Response (SCHR) in order to determine if values may be an issue inhibiting cooperat

Forskning kring tidigt liv möter svårigheter utöver de som forskning kring senare liv ställs inför. På grund av att de tidigaste bergarterna inte finns bevarade har viktig information om jordens tidiga förhållanden för evigt gått förlorad. Dessutom var de tidigaste livsformerna små och morfologiskt enkla, vilket betyder att abiotiska pseudofossil lätt kan infiltrera fossilarkivet. Ett centralt temEarly life research faces additional challenges than those of the study of later life forms. Due to the de-materialization of the earliest rocks, valuable information about the early Earth is forever lost. Furthermore, early life was small and morphologically basic, effectuating abiotic pseudofossils to infiltrate the fossil record. A central theme is the close connection early life research share

Today’s work environment is currently undergoing radical changes and although the aware-ness of social collaboration is growing within organizations, they still struggle with the digital transformation and thereby with the integration of Enterprise Social Network (ESN). Our study aims to investigate the role of ESN within the todays’ organizations. Specifically, it intends to build on previous res

Wastewater is an excellent source of nutrients and energy. By treating the wastewater in a clever way, it is possible to both recycle nutrients and recover energy, and thereby create opportunities for a sustainable system. In conventional wastewater treatment where the activated sludge process is used, aeration is needed and a lot of biomass is produced. In regions with warmer climate, or if low-v

Resilience, the ability to withstand or adapt to altered conditions, gets more important as the grave effects of climate change intensify. Individuals’ capacities to respond to disasters are strongly connected to their social capital (e.g. relationships and networks). The aim of this paper is to contribute to the understanding of this connection at a neighborhood level. In the first part of this p

Polyphenols are a group of compounds that are widely spread in the plant kingdom. These compounds are of great interest for researchers because of their antioxidant properties that are important for both plant life and human health. Sample preparation is a crucial step for the determination of phenolic compounds and their metabolites in biological samples. Methods for isolation and preconcentratio

Foreign invested SMEs have recently become increasingly interested in China. The enterprises are in this report categorized as second wave companies since they follow the footsteps of previous pioneers, of which mostly were larger companies. The ambitions of the SMEs are either to sell products on the ever expanding Chinese market or to utilize the potential of low cost production for global marke

Background: The incidence of non-Hodgkin lymphoma (NHL) in early life has increased in recent decades, but the relevant risk factors remain largely unknown. We examined perinatal and family risk factors for NHL in childhood through young adulthood. Methods: We conducted a national cohort study of 3 571 574 individuals born in Sweden in 1973-2008 who were followed for incidence of NHL through 2009

1.. Implementation of the full spectra of screening tools to prevent the introduction of invasive species results in a need to evaluate the cost-efficiency of gathering the information needed to screen for these species. 2. We show how the Bayesian value of information approach can be used to derive the benefit of a screening model based on species traits, which in combination with the base rate o

Genome-wide association (GWA) studies have identified multiple loci at which common variants modestly but reproducibly influence risk of type 2 diabetes (T2D)(1-11). Established associations to common and rare variants explain only a small proportion of the heritability of T2D. As previously published analyses had limited power to identify variants with modest effects, we carried out meta-analysis

In this essay I discuss different normative foundations - theories of political ethics, for proposed cures to market failures. In addition to empirically match what cure fit what type of market failure, I posit the notion that the normative position of an economist, or policy maker, or of a group, concerned with these problems, delimits the options available for recommending, or analysing, what co

Background and Objectives. Although anagrelide is widely used in the treatment of throm-bocythemia in myeloproliferative diseases, there is currently limited information on the efficacy and toxicity of its long-term use. This prospective study investigated clinical toxicity and efficacy of anagrelide during two years of treatment. Design and Methods. A multicenter, open, phase II study of anagreli