620 Ingenieurwissenschaften und Maschinenbau
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The aim of this master thesis is to describe the key factors of successful energy efficiency projects. In particular, local conditions of such projects in Kazakhstan will be emphasized and a country-specific guideline will be provided at the end. The following topics will be covered in this thesis: energy efficiency technologies, financing, and capacities. The first part examines the energy efficiency approaches and their potential in the local industry. The second part deals with available financing methods, their specific characteristics and appropriateness for overcoming investment barriers in Kazakhstan. The third part of the master thesis concerns necessary project capacities. The application of the three elements for successful project implementation is described in the end.
The primary objective of this work and the research at the “Helmholtz-Zentrum für Umweltforschung” was to gain a deeper understanding of the basically transformation processes, especially for nitrogen species, in constructed wetlands. Therefore two different types of laboratory scale model systems, run with two different artificial wastewaters, had been observed for about 4 months. Data about the situation of three nitrogen species (ammonium, nitrate, nitrite), the physical condition of the pore water and the carbon sources contained by the water had been collected and compared. The present work will provide a summary about the actual knowledge of the microbial processes in constructed wetlands and the general character of such constructions. It will explain the different methods used to gain the data which will be later wards discussed with the aid of the created graphs in the final argumentation.