RENEWABLE ENERGY PROFIT FROM SOME BIO- SOURCES DERIVING FROM THE INDUSTRIAL SYSTEM

Finding new sources potentially used for the renewable and alternative energy production, it is nowadays a normal trend for meeting ends of the increasing necessity of the society for the energy consumption. In this context, our group of chemical engineering has been focused in the last decade for performing a queue of studies employing experimental tests and computer simulations, as well. Firstly, we have studied the possibility of using the wastes from the agro-food activity, aiming to profit biogas employing the mesophilic and thermophilic procedures of the anaerobic digestion technique. We have got very optimistic results, showing e good perspective of balancing the energy demand in the rural areas, with the heat energy produced from these wastes. On the other hand, it has been tested the possibility of using the other sources of waste organic discharges from different industrial activities, starting with waste food, waste paper, waste plastic, waste rubber (tire), waste cooking oils, etc. This study examines residue materials utilization for the energy production and heat, as well. The local potential of each option to reduce carbon emission depends on a number of factors such as the quality of waste chosen as a feedstock, pretreatment method to be used, conversion route, processing technology, its maturity and possibility to improve, in total efficiency. The main subject of this work has also been the liquid discharges as wastewater especially from the dairy and meat processing industry (slaughter houses) around the country. Very promising results we have got also through testing in the laboratory set-up, but we have also found a reasonable compliance through computer modeling and simulation employing sophisticated commercial software, such as ASPEN PLUS, HYSYS, PRO II, SuperPro Designer, CHEMCAD, PROSIM etc. At the end of each package of waste materials and their treatment methodology used, we have carried out a full procedure for the plant design and economic analysis for the feasibility study and sensitivity analysis