"Renewable energy sources" . . "Renewable energy sources." . "Renewable energy sources Germany." . . "BUSINESS & ECONOMICS / Real Estate / General" . . . . "Solar energy." . . "Energy consumption Economic aspects." . . "Energy consumption Economic aspects" . "Energy development" . . "Energy development." . "Nuclear energy." . . "Germany" . . "Germany." . "Electronic books." . . "Electronic books" . . . . "The shortage of energy in rural areas and the pollution of the environment from animal wastes due to lack of appropriate technology in Africa motivated the author to conduct research and write this book. In this research book an economically feasible, technically acceptable and environmentally friendly biogas plant is designed by using low cost plastic materials. This book is an essential reference for chemical engineering, environmental engineering and agricultural students. The concept solves global environmental pollution and the problem of lack of energy and organic fertilizer in rural com."@en . . "Alternative energy sources to combat climate change : biogas production using cost effective material" . "Alternative energy sources to combat climate change : biogas production using cost effective material"@en . . . . . . . "Alternative energy sources to combat climate change : biogas production using cost effective" . . . . "Alternative energy sources to combat climate change biogas production using cost effective material" . . "Alternative energy sources to combat climate change: Biogas production using cost effective material" . . . . . "Livres électroniques" . "Electronic books"@en . . "Energy development Germany." . .