Zero discharge water treatment apparatus and method

A wastewater management system includes a series of holding tanks in combination with a membrane bioreactor treatment subsystem connected to one or more autoclaves and/or sonolysis units and thermal evaporators to treat liquid discharge from the system. A condenser connected to the thermal evaporator(s) condenses water vapor created by the thermal evaporator(s) into its liquid state for delivery to, and assimilation by, plants in a dedicated greenhouse or hydroponic system or for reuse in a building. CO2 and water vapor produced by combustion of a thermal evaporator fuel source is sent through the condenser to add to the liquid water recovery. The CO2 is flowed into the greenhouse(s) for carbon fixation by plants. A CO2 monitoring system ensures the concentration of CO2 in the greenhouse is maintained at an acceptable level for humans. Ozonation, UV and/or chloride treatments may be used as optional water purification treatments in the system.