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One of the most important factors of industrialization and development is energy. Demand of energy significantly increases parallel to technology developing and world population increasing. The consumed amount of energy indicates the development level of countries in today. Oil and coal stocks are decreasing fastly, and lack of natural gas sources results in an increasing demand on renewable energy sources. The negative effects of the renewable energy sources are less than conventional energy sources on environmen...

Biomass resources include wood and wood wastes, agricultural crops and their waste by products, municipal solid waste, animal wastes, waste from food processing. Especially organic waste, dumped in open places causes heavy environmental pollution to soil, groundwater and surface waters as the amount of the waste generated is growing very fast. However, energy from biomass may significantly contribute to the growing future demand for energy. Energy from biomass avoids the net increase of carbon dioxide in the atmos...

Biogas is a part of the natural circle. Biogas is formed by the activity of anaerobic bacteria. In nature biogas is produced for example in bogs. It is also possible to produce from biological material in an environment free from air. The gas that is produced is methane (CH4), which is an excellent fuel for heat, electricity, and cars that doesn’t drain the earth’s fossil resources. The raw-material in biogas production has traditionally been waste from the food industries, and communal sewage treatment works....