Salt management system for portable renewable energy microgeneration system

A portable and modular renewable energy microgeneration apparatus comprising:

• a mixing tank that is configured to mix incoming waste with a liquid;
• a buffer tank that is configured to receive the waste from the mixing tank and pre-warm the waste in preparation pasteurization;
• a pasteurization tank that is configured to perform pasteurization on the waste received from the buffer tank;
• a digestion tank that is configured to perform anaerobic digestion on waste received from the pasteurization tank;
• a de-watering device that is configured to separate liquid digestate and to remove salt from the liquid separated from the digestate;
• first sensors disposed in the buffer tank and the digestion tank that are configured to measure salinity;
• a second sensor disposed in the digestion tank that is configured to measure biogas quality;
• and
• a controller that is configured to:
• cause the transfer of digestate from the digestion tank to the pasteurization tank after anaerobic digestion of the waste occurs,
• cause the transfer of digestate from the pasteurization tank to the dewatering device after the digestate received from the digestion tank is pasteurized in the tank pasteurization tank,
• cause the de-watering device to separate liquid from the digestate received from the pasteurization tank and to remove salt from the liquid separated from the digestate to create a liquid with a reduced salinity,
• monitor the salinity of liquid in the buffer tank and the digestion tank using the first sensors,
• monitor the quality of biogas in the digestion tank using the second sensor, and
• cause the mixing of the liquid with the reduced salinity with the waste and adjust a feed rate of the waste to the digestion tank as required to reduce the salinity of the waste and increase methane production within the digestion tank.