This is an accessible and authoritative guide to sustainable building. It explains the technologies involved, from air pumps to wind generators and solar panels, helping you to achieve a zero carbon home.

Hundreds of million tonnes of agricultural and food waste are produced each year around the world, most of which is just that, waste. Anaerobic digestion, biogas and the heat and electricity that can be produced from it is still a nascent industry in many countries, yet the benefits of AD spread throughout the community: Gives good financial returns to farmers and eco-entrepreneurs. Helps community leaders meet various policies and legislative targets. Offers an environmentally sensitive waste disposal option. Provides a local heat and power supply, & creates employment opportunities Reduces greenhouse gas emissions, as well as providing an organic fertilizer. Although the process of AD itself is relatively simple there are several system options available to meet the demands of different feedstocks. This book describes, in simple, easy to read language the five common systems of AD; how they work, the impact of scale, the basic requirements, the costs and financial implications, and how to get involved in this rapidly growing green industry.

Anaerobic Digestion (AD) is used around the world to produce low CO2 energy and to make clean fertilisers with large, medium and small-scale plants common-place in Western Europe and USA.

There is over 100 million tonnes of agricultural and food waste produced each year in the UK, most of which is just that, waste. Anaerobic digestion, biogas and the heat and electricity that can be produced from it is still a nascent industry within the UK, yet a typical AD plant will recover its capital cost in the first 5 to 7 years.

The benefits of AD spread throughout the community:

• Farmers and eco-entrepreneurs: Offers good financial returns.
• Community Leaders: Helps meet various policies and legislative targets.
• Food processing industry: Offers an environmentally sensitive waste disposal option and avoids increasing landfill fees.
• Local community: Provides a local heat and power supply, creates employment opportunities and reduces farm odours.
• Environment: Reduces volumes of waste going to landfill and greenhouse gas emissions, as well as providing an organic fertiliser.

Although the process of AD is relatively simple there are several system options available to meet the demands of different feedstocks. This book describes, in simple, easy to read language the 5 common systems of AD; how they work, the impact of scale, the basic requirements, their costs and financial implications, and how to get involved in this promising green industry. "