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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problem of plant living in fresh water habitat

Buoyancy The density of fresh water is considerably less than that of the sea and such floatation is a greater problem for fresh water plankton. There is occasional flooding which submerges the plants. The water lilies, water lettuce, water hyacinth are able to stay afloat because of the air spaces in the lower part of the leaves as well as in the skins and roots.

Processing of animal products

Alot of products are derived from livestock, both edible and inedible, for this discourse, we look at the edible products. The edible products include, milk, meat eggs. Milk processing Milk is the lacteal secretion from the mammary gland of females livestock. Although in modern days, milk can also be gotten from plants eg soybean milk, coconut milk. The milk from animals from cow, goat, buffallo etc. The milk is a very good vehicle for transmission of pathogens so milk handlers should exercise the utmost level of personal hygiene, the milk processing area should be sanitized. The milk handlers must be free from gastro-intestinal infections, no coughing, sneezing, diarrhoea etc. Note that the dairy animals are kept in hygienic condition, sick or animals receiving treatment should not be milk. The udders should be washed prior to milking in order to reduce the risk of contamination of the milk. Once milk is collected from the animals through a milking machine, the tempe

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