A modularizable system for residential water treatment

A modularizable system for residential water treatment having a low energy requirement to process water for reuse at the residence. The system increases availability of water at the residential level in areas where water is a limited or limiting resource (e.g., in arid climates). A water treatment system comprising a settlement tank 410 to receive effluent, at least one aerobic treatment tank 420, 426, which receives effluent from the settlement tank and a disinfector 430 adapted to disinfect an effluent from an anaerobic treatment tank 414 and a aerobic treatment tank. The system tests a parameter of the effluent and control the configuration of the process of the water treatment in response to the tested parameter. The tested parameter may be the level of anaerobic bacterial activity. The disinfector may be on or more of an ozonator, an ultraviolet light source, a heat source, a distillation system, a reverse osmosis system and/or a chemical treatment processor. A parameter of the anaerobic bacterial activity was be sensed by the tester. The aeration substance may be controlled in response to a sensed parameter of aerobic bacterial activity. The disinfector may be activated in response to a parameter measured by the tester. Also claimed is a water treatment method comprising receiving aerobically treating an effluent, testing a parameter of the aerobically treated effluent and adjusting the aerobic treatment of the effluent in response to a result of the tested parameter.