A system includes a first separator configured to receive waste water, retain a first portion of the waste water, and separate the first portion of the waste water into a first vapor and a first solid material; and a second separator in fluid communication with the first separator, the second separator being configured to receive a second portion of the waste water from the first separator and to separate the second portion of the waste water into a second vapor and a second solid material, the second separator including a first condenser, a heating element, and a first electrocoagulation unit. Related apparatus, systems, techniques and articles are also described.

A process that produces a non-alcohol cereal beverage (NACB) includes separating an input fermented malt beverage (FMB) into an output FMB and the NACB, wherein the separating includes multiple stages; and adding water during the separating so that the output FMB has the same alcohol by volume (ABV) as the input FMB during each stage of the separating.

A modular water purification system comprising an evaporation assembly, a condensation assembly, and a waterproof enclosure The evaporation assembly is heated primarily by sun heat, with optional supplementary heating. The condensation assembly converts water vapor to liquid, optionally aided by external power. The waterproof enclosure covers and seals the condensation assembly and the evaporation assembly to prevent external contamination defining a water purification device. The water purification device includes an inlet for the water source and an outlet from the condenser reservoir. The modular water purification system allows for vertical stacking, enabling simultaneous increase in water elevation and purity as it progresses through the stack.