METHOD OF PROCESSING ORGANIC SUBSTRATES INTO FERTILISERS AND CARRIER OF GASEOUS ENERGY Russian patent published in 2013 - IPC C02F11/02 C02F11/12 B09B3/00 

FIELD: chemistry.

SUBSTANCE: claimed method relates to field of utilisation of concentrated organic substrates, such, as litter-free manure, dung, sediments and sludge of stations of mechanical-biological purification of household and industrial sewages close to them in composition. Method of processing organic substrates into fertilisers and carrier of gaseous energy includes aerobic processing of initial substrate with formation of heated and hydrolysed substrate and heated humid oxygen-containing gases, anaerobic processing with formation of heated effluent and biogas and separation into fractions. Separation into fractions is carried out after aerobic processing. Liquid fraction is subjected to anaerobic processing. Heated effluent is applied as heat carrier for regulation of heat mode of aerobic processing and as source of ammonia nitrogen for enrichment of solid fraction. Heated humid oxygen-containing gases are applied for preliminary heating and aeration of initial substrate.

EFFECT: invention makes it possible to reduce duration of aerobic-prepared heated and hydrolysed substrate stayingat limiting anaerobic stage, reduce weight and dimension indices of equipment, refuse from unreliable heat-exchanging equipment and ensure effective application of elements of effluent supply for agrotechnical purposes, with increase of process energy efficiency.

1 dwg