Abstract: The invention relates to a method for producing an organic compound from manure, including the steps of:i) concentrating the manure to form a vapor;ii) condensing said vapor to form a condensate;iii) adding to said condensate micro-organisms which are capable of producing the organic compound; andiv) separating from the condensate the organic compound produced by the micro-organisms.These micro-organisms comprise species of the genera Arthrobacter, Brevibacterium, Corynebacterium, Bacillus, Escherichia, Microbacterium, Micrococcus and Pseudomonas.

Abstract: A method for recovering volatile, organic compounds from manure, by:i) acidifying and concentrating the manure;ii) condensing the formed vapor; andiii) separating the volatile, organic compounds from the condensate.Preferably the volatile, organic compounds are removed from the condensate by liquid extraction, crystallization, distillation and/or ion exchange.

Abstract: A method for treating manure including the drying of manure by displacing water out of the manure by a carrier liquid, extracting the carrier liquid by evaporation and purifying the carrier liquid vapor for re-use, wherein fats originally present in the manure are released as manure fat, by burning the manure fat in a controlled manner and at least partially using energy thereby released in the process.

Abstract: The invention relates to a method for preparing a granular fertilizer from manure, comprising the steps of:i) acidifying the manure;ii) dehydrating the acidified manure and evaporating the carrier liquid; andiii) forming granules from the fertilizer obtained. Preferably the manure is acidified using a mixture of nitric acid and sulphuric acid, wherein in the mixture the nitric acid to sulphuric acid ratio is 30-50:70-50. The granulate comprises:______________________________________ NH.sub.4 --N 1-3% by weight NO.sub.3 --N 1,5-3,5% by weight N-total 5-9% by weight P.sub.2 O.sub.3 -total 2-5% by weight K.sub.

Abstract: The invention relates to a method for processing manure, comprising the steps of:i) adding an organic carrier liquid to the manure;ii) concentrating the mixture of manure and carrier liquid;iii) condensing the formed vapor;vi) anaerobic treating of the condensate; andv) aerobic treating of the effluent from the anaerobic treatment.Preferably the effluent deriving from the anaerobic treatment is denitrified in a denitrification unit and nitrified in a nitrification unit, and wherein a portion of the sludge-influent mixture from the nitrification unit is recirculated to the denitrification unit.The treating yield is greater than 90%, preferably greater than 95%, such as 97-99% BOD.