Integrated membrane system for distributed water treatment

摘要

Integrated membrane treatment systems for treatment of an aqueous solution. In embodiments, components, such as an MBR, are integrated with means to recover energy from the system, for example from an RO concentrate, to operate the other components. In embodiments including biological treatment, RO is integrated with other components, such as an MBR with the ROs ability to remove inorganic nitrogen enabling biological treatment to be performed with only partial nitrification and the MBR operated without active pH control. In embodiments, RO is integrated with a chlorine generator to convert chlorides present in the RO concentrate for an in-situ source of oxidizing biocides for disinfection purposes. Chloramines may be generated in-situ from residual ammonia and chlorides in the RO reject. In embodiments, carrier media is employed in a membrane tank to enhance removal of residual organics by the MBR and to also improve effectiveness of membrane scouring.

主权项

1. A water treatment system, comprising:
a vessel for at least one of filtration or biological, chemical, or physical-chemical treatment of an aqueous solution; a hydraulic pump disposed downstream of the vessel to drive a vessel effluent and to create a fluid pressurized by the hydraulic pump; and a hydraulically driven motor having a drive side in fluid communication with the fluid pressurized by the hydraulic pump, and a driven side coupled to one of a mechanical mixer or a compressor, wherein the hydraulically driven motor is driven by the fluid pressurized by the hydraulic pump to power the compressor or mechanical mixer to perform mixing, aerating, or pressurizing of the aqueous solution in the vessel for filtration or treatment of the aqueous solution in the vessel, and wherein the hydraulically driven motor does not power the hydraulic pump.