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Nowadays, one of the factors that have an impact on climate change is wastewater treatment facilities. The main greenhouse gas (GHG) emissions are carbondioxide (CO2), nitrous oxide (N2O) and methane (CH4) in waste water treatment plants. GHG emissions are caused by several items such as the electric consumption, treatment process, sludge treatment, sludge transportation for disposal in the WWTP. The purpose of this paper is the optimization and estimation of GHG emissions from a central wastewater treatment plant in an organized industrial district in Tekirdag. GHG emissions from WWTP have been calculated using ECAM web tool that is designed by WaCCliM organization. This work analyzed GHG emissions are compared and estimated for different months with in two sections. The highest emissions were estimated in December to be 226.573 kgCO2eq/month because the wastewater flow and wastewater load were increased. The highest emission in summer months was estimated to be 195.174 kgCO2eq/month for July. The results of this work showed that the most of expenses are spent through electric energy consumption and sludge transportation and disposal in the WWTP. GHG emissions are minimized if it is increased the use of renewable energy sources and is decreased to produce disposal sludges. [ABSTRACT FROM AUTHOR]

With the rapid urbanization, migration from rural to urban areas and industrialization since 1950s, need and demand for energy is ever-increasing in Turkey. For Turkey, who is importing approximately 75 percent of the demanded energy; external dependence, the expenditure of the income from exports for the energy imports, threaten the energy security. To address the mentioned goals of minimizing external dependence, Turkey has accelerated the creation and implementation of policies on alternative energy resources and the efficient use of energy starting from 2000s. Accordingly, these legal arrangements and related actions cannot be carried out adequately enough by central government bodies and their provincial units alone. Approximately 93 percent of the population in Turkey today is living within municipal boundaries, of which 77.6 percent live in metropolitan municipalities boundaries, local governments have a great deal of responsibilities related to energy supply and efficiency, as well as the realization of the energy policies that can be accelerated from part to whole and from local to center. The main purpose of this study is to determine the energy-related political activity areas of local governments and to contribute to the development of a new political dialogue which engage all related stakeholders. [ABSTRACT FROM AUTHOR]

The competence around the elevator marjet place has resulted in diminish of the concept of energy efficiency only to energy consumption on running. As a result, conventional hydraulic elevators are ranked in the lowest category. In fact, the energy efficiency includes energy equivalence of service and maintenance costs beside energy consumption on running and idle conditions for the elevators. The design of the hydraulic elevators is an important factor affecting energy consumption. Keeping the oil temperature under control is one of the essential factors which improves energy saving, running performance and service life. Counter-weighing on hydraulic elevator systems haven't used widely so far, but its usage increases by changing face of market strategies in order to decrease energy consumption. Thermal-equilibrium temperature and energy consumption can be significantly reduced by means of counter-weighing especially for intensively used elevators. In this paper, the effects of the designs considering thermal equilibrium temperature and counter-weighting on energy efficiency are investigated for the elevators. [ABSTRACT FROM AUTHOR]