PROCESS LINE OF LIQUID MANURE RECYCLING TO PRODUCE BIOGAS AND FERTILISERS Russian patent published in 2010 - IPC C05F3/06 

FIELD: agriculture.

SUBSTANCE: process line of liquid manure recycling to produce biogas and fertilisers consists of serially arranged heating chamber of initial manure, chamber of hydrolysate, chamber with thermophilic mode of anaerobic treatment of manure, heat exchanging device, chamber with mesophilic mode of anaerobic treatment of manure. At least one of chambers of anaerobic treatment of manure is provided with facilities for immobilising of anaerobic microflora. Heating chamber of initial manure is equipped with heater. Between heat exchanging device and chamber with thermophilic mode of anaerobic treatment of manure there is a device of gravitational separation of anaerobic biomass into fractions, liquid part of which is connected serially to heat exchanging device and chamber with mesophilic mode of anaerobic treatment of manure. Heat exchanging device, by means of serially arranged compressor and throttling valve is connected to heater to form a single thermodynamic circuit.

EFFECT: reduction of primary energy costs for recycling of manure by intensification of heat exchanging device operation.

1 dwg