Simple technique for biogas generatioñ

What is biogas?

Biogas is a mixture of gases produced as anaerobic bacteria break down organic matter. It is a renewable gaseous fuel containing approximately 50-70% methane and 30-40% carbon dioxide. Biogas is produced as a by product from the decomposition of organic waste in landfills and anaerobic digesters that process agricultural waste and municipal waste water.

Biogas is produced by bacteria through the biodegration of organic material under anaerobic condition. Natural generation of biogas is an important part of biogeochemical carbon cycle. It can be used both in rural and urban areas.

Anaerobic digestion of animal manure and other agricultural waste offers a number of additional benefits to farmers, including reduced air and water pollution, odor management, production of environmentally benign co-products including organic fertilizer and animal bedding material, new revenue streams such as sales of renewable natural gas and more environmentally friendly fertilizers.

Excerpts from the book simple technique fr biogas generation: clean energy source by Ukponmwan Ifueko. Get it from the online store www.morebooks.de ( https://www.morebooks.de/gb/search?utf8=%E2%9C%93&q=Ukponmwan+ifueko+oghogho+

amazon.com/author/ifuekoukponmwan

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Physical classification of water

Hygroscopic water This is the water present in an air dry soil held tightly by soil solids at a suction pressure greater than 3.1 bar. This type of water cannot be removed by evapouration and roots of higher plants. Only microbial activities have been found to take place here.

Arboreal Habitat

Trunk of a Palm tree A variety of plants and animals live on and sometimes in a palm tree. The plants are epiphytes most of which live in humus and dusts which collects in the leaf bases of a palm tree. The animals are there because of these epiphytes or of the palm tree itself. A palm tree maybe divided into three regions, the crown, trunk and aerial parts of the roots. The common epiphytes found on palm trees are orchids (Diaphanthe, Bulbophyllum) figs, ferns, mosses. The animals found here are small animals like insects and spiders. You can get a soft copy of this book by sending me mail. ukponifueko@gmail.com.

Basic principles of food processing and preservation :easy notes

www.morebooks.de is the online bookstore for purchase of copies PRINCIPLES OF REFRIGERATION STORAGE LOW TEMPERATURE Refrigeration storage room require sufficient capacity/insulation to maintain temperature of + 1oC, it is important to note the numbers of doors and factors causing heat cut. Vegetables and fruits generate different levels of heat. They are stored at different temperatures. The low temperature must be maintained as much as possible. AIR CIRCULAÞION AND HUMIDITY CONTROL Air is required to remove heat from food surface. If the air is too moist there is surface condensation and mould growth, if the air is too dry, food may dry out. Each food has its own relative humidity and temperature. The best relative humidity is equivalent to the moisture in food. Fans are constructed in the refrigeration system in order to enhance air circulation, all the sections of the room receives the low temperature. The hygrometers are read and interpreted correctly to ensure...

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