METHOD FOR BIOLOGICAL TREATMENT OF CONCENTRATED ORGANIC SUBSTRATES TO OBTAIN FERTILISERS, GASEOUS ENERGY CARRIER AND PROCESS WATER AND APPARATUS FOR REALISING SAID METHOD Russian patent published in 2014 - IPC C02F11/04 C02F3/30 

FIELD: chemistry.

SUBSTANCE: invention relates to recycling concentrated organic substrates. Sources of such substrates can be agro-industrial enterprises - livestock and poultry production companies (liquid manure, droppings) and processing companies. The substrates can also be deposits from local waste water treatment plants, distillery dreg, surplus activated sludge and deposits from city waste water treatment plants. The initial substrate is subjected to preliminary aerobic treatment to obtain a hydrolysed and heated intermediate substrate and oxygen-containing gaseous products; the intermediate substrate is subjected to anaerobic treatment to obtain biogas and a treated substrate (effluent) and the effluent is divided into fractions. The liquid fraction is subjected to further aerobic treatment; the liberated heat energy is used to stabilise temperature conditions of preliminary aerobic treatment; the oxygen-containing gaseous products are fed into the aerated volume of the liquid fraction, and the thickened fraction is used to produce fertiliser.

EFFECT: high efficiency of aerobic/anaerobic treatment of organic substrates.

2 cl, 1 dwg