Patent HR-PK20161758-B3 (HR)
Inventor: PANJIČKO MARIO
IPC: C02F11/04
Filed: 2016-12-21
Abstract: Izum se odnosi na postupak anaerobne obrade i dobivanja bioplina iz pivske komine koji sadrži korake: (a) pred-obradu provođenjem termokemijske hidrolize pivske komine miješanjem pivske komine (1) i anaerobno obrađene otpadne vode pivske industrije (2) u omjeru 1:2 s kiselinom (4) uz zagrijavanje; (b) neutralizaciju smjese nakon pred-obrade lužinom (5) na pH od 6,3 do 6,8; (c) separaciju smjese nakon neutralizacije na čvrsti dio termokemijski pred-obrađene pivske komine (8) i tekući dio termokemijski pred-obrađene pivske komine (7) pomoću separatora (6-1); (d) obradu čvrstog dijela termokemijski pred-obrađene pivske komine (8) postupkom anaerobne digestije dvostupanjskim sustavom; i (e) sakupljanje bioplina (12) i separacija pomoću separatora (6-2) tekućeg (14) i čvrstog ostatka (13) proizvedenih u koraku (d). Obrada čvrstog dijela termokemijski pred-obrađene pivske komine (7) može se izvesti u dvije različite izvedbe. U prvoj izvedbi dvostupanjski sustav se sastoji od reaktora koji radi na principu čvrste digestije (10-A) i reaktora s granuliranom biomasom (9) povezanih preko također međusobno povezanih međuspremnika (11-1 i 11-2); a u drugoj izvedbi od reaktora koji radi na principu miješanja suspenzije (10-B) i reaktora s granuliranom biomasom (9) povezanih preko također međusobno povezanih međuspremnika (11-1 i 11-2). U oboje izvedbe su reaktori (9) i (10-A odnosno 10-B) međusobno povezani i voda između navedenih reaktora cirkulira. Ostatak iz procesa je upotrebljiv u svrhe poljoprivrednog gnojiva.<BR/>The invention refers to anaerobic processing and biogas production from brewery spent grain in the following steps: (a) pre-processing through thermochemical hydrolysis of brewery spent grain by mixing brewery spent grain (1) and anaerobically processed waste water from brewery (2) in a proportion of 1:2 with acid (4) upon heating; (b) mixture neutralisation after being pre-processed with alkali (5) to pH from 6.3 to 6.8; (c) mixture separation after being neutralised to solid portion of thermochemical pre-processing of brewery spent grain (8) and liquid portion of thermochemical pre-processing of brewery spent grain (7) with the aid of a separator (6-1); (d) processing of solid portion of thermochemical pre-processing of brewery spent grain (8) by a two-stage anaerobic digestion system; and (e) biogas collection (12) and separation with the aid of a separator (6-2) of liquid (14) and solid residues (13) produced under step (d). There are two different processing methods regarding solid portion of thermochemical pre-processing of brewery spent grain (7). The first method implies a two-stage system comprising a reactor that operates on the principle of solid digestion (10-A) and a reactor with granular biomass (9) connected via mutually also connected containers (11-1 and 11-2); and the second method includes a reactor operating on the principle of suspension mixing (10-B) and a reactor with granular biomass (9) connected via mutually also connected containers (11-1 and 11-2). In both methods, reactors (9) and (10-A or 10-B) are interconnected and water circulates between the mentioned reactors. The process residues can be used as farming fertilizer.