Method and system for preparation of substrate for use in anaerobic digestion of organic waste
First Claim
1. A method for preparation of a substrate for use in anaerobic digestion of organic waste, the method being implemented in a substrate pretreatment system, the method comprising:
- a) simultaneously loading under pressure into an airtight chamber within the substrate pretreatment system i) an organic substrate, wherein the organic substrate comprises a liquid and a solid phase of the organic waste; and
ii) a heated organic fluid from a bioreactor, to form a mixture;
b) simultaneously heating and degassing the mixture, wherein the mixture is heated to and maintained at a temperature of about 37°
C. to sustain growth of microorganisms;
c) subjecting the mixture of step b) to treatment of an ultrasonic hydrodynamic device in a closed loop to create vibrations in the mixture that cause;
i) periodic pressure;
ii) cavitation;
or iii) both i) and ii) to break down cell walls within the ultrasonic hydrodynamic device comprising a radiator which is connected to the airtight chamber to form the closed loop, and wherein the mixture is circulating within the closed loop during the treatment; and
d) transferring the mixture of step c) to the bioreactor.
1 Assignment
0 Petitions
Accused Products
Abstract
There is disclosed a method for preparation of substrate for use in anaerobic digestion of organic waste. The method can be executed in a substrate pretreatment system, the method comprising: loading of a substrate into the substrate pretreatment system, mixing the substrate with liquid; heating the substrate and liquid to a pre-determined processing temperature; exposing the mixture to radiation; transferring the processed substrate to a bioreactor, during the heating, the method further comprises: degassing the mixture using vacuum extraction; and circulating the mixture past an ultrasonic hydrodynamic radiator.
-
Citations
5 Claims
-
1. A method for preparation of a substrate for use in anaerobic digestion of organic waste, the method being implemented in a substrate pretreatment system, the method comprising:
-
a) simultaneously loading under pressure into an airtight chamber within the substrate pretreatment system i) an organic substrate, wherein the organic substrate comprises a liquid and a solid phase of the organic waste; and
ii) a heated organic fluid from a bioreactor, to form a mixture;b) simultaneously heating and degassing the mixture, wherein the mixture is heated to and maintained at a temperature of about 37°
C. to sustain growth of microorganisms;c) subjecting the mixture of step b) to treatment of an ultrasonic hydrodynamic device in a closed loop to create vibrations in the mixture that cause;
i) periodic pressure;
ii) cavitation;
or iii) both i) and ii) to break down cell walls within the ultrasonic hydrodynamic device comprising a radiator which is connected to the airtight chamber to form the closed loop, and wherein the mixture is circulating within the closed loop during the treatment; andd) transferring the mixture of step c) to the bioreactor. - View Dependent Claims (2, 3, 4, 5)
-
Specification