As well as producing commercially valuable biogas, anaerobic farm digesters have many other benefits. They enable the livestock farmer to recycle fertilizer from organic waste, to produce saleable compost as a byproduct, and reduce the environmental impact on water and atmosphere at the same time. Digesters let us run farms more economically, and make our energy supplies and our food production more sustainable. This straight forward book provides a wealth of useful information, including the benefits of using a digester, and how to go about installing one: * Why we need farm digesters, and their benefits * How digesters work * Commercial products from digester * How to set up a farm digester programme