Are you an environmentalist? You have heard of biogas but dont actually know what it means? Here is a concise insight on how to produce biogas at home! Save energy cost by producing your own energy!

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When I read this book I was able to make my own fire for coffee without spending money on energy. - Trina from Australia
I have used this book to train youths in my community to generate their own gas. - Boma from Cameroon

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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.

Aprilians

Strong resilient women are born in April, celebrate them!

Drying oil in water emulsion

The drying curve varies according to the type of food and the kind of drier that is used, and also the way the food material also responds to temperature, humidity, air velocity and direction of air and thickness of food. Oil-in-water emulsion dries only quickly than water -in-oil emulsion. Case hardening is common with foods that contain dissolved sugars and other solutes in high temperature. As water leaves cells of the food, solutes are retained by cell membranes and air spaces in surface layers can act by capillary action whereby water caries solutes to the surface during drying and leaves them there. In some fruits, this can cause sticky sugary exudates on the surface, which shrinks and clogs pores leading to case hardening.................................................... Excerpts from the book, Basic principles of food processing and preservation: Easy notes by Ukponmwan, Ifueko. Get it from the online store www.morebooks.de https://www.morebooks.de/g...

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