US Patent 7513997 Recirculating wastewater evapotranspiration and disinfection system

A recirculating wastewater evapotranspiration and disinfection system is disclosed in which wastewater is collected, stored, aerated. and circulated through an unsaturated and optionally heated planter/filter bed containing soil microorganisms and living plants in which aerated wastewater is circulated and recirculated through the system until all of the wastewater and its constituents are utilized by any of evaporation, transpiration, gasification and living plant production and their by-products, or otherwise disinfected for reuse, while energy is gratuitously recovered in the process for productive use.