The expeditionary wastewater recycling system is a portable, self-contained system adapted for deployment in the field for use by expeditionary military forces. The system includes a tank that is divided into three separate internal volumes. The first volume serves as a primary clarification chamber, the second contains a moving bed biological reactor (MBBR), and the third contains a membrane biological reactor (MBR). Blackwater from the latrine flows through the three chambers, and further treatment is provided by ultraviolet and chlorine treatment units. The system may be deployed between the latrine and a conventional liquid storage bladder. Processed water flows to another storage bladder provided with the system, and the conventional bladder serves as an overflow container. The system is completely contained within a standard shipping container, and additional volume within the container serves to store the collapsed bladder, hoses, fittings, and/or other equipment.