Great Circle Associates

Great-circle Technologies, Inc.

Steven B Mullerheim

Fred G Williams, Jr

Guy W Roy

Wastewater can be treated using a combination of a settleable solids separator, such as a vortex separator, and a gas floatation separation system.

Process and apparatus for treating wastewater

Wastewater can be treated using a combination of a settleable solids separator, such as a vortex separator and a membrane separation system. Removal and segregation of materials that adversely affect operation of the membrane separator earlier in the treatment process can improve water throughput, water quality and the lifespan of system components. Physical separation of settleable solids and floatable materials from the wastewater prior to treatment with a membrane separator can allow higher flow rates to be achieved.

A method and apparatus for treating sanitary wastewater using membrane filtration are disclosed. Designed principally for complete on-site sewage treatment and disposal, the system separates wastewater into liquid and concentrated solid components by membrane separation; then dries, disinfects, and deodorizes the solid component by a variety of methods to render it reusable or more easily stored and disposed. The liquid component is discharged or reused as is, or is further treated to render it disposable or reusable for particular applications. Alternatives for treating the solids component include mixing with alkaline admixtures and composting with other cellulose-based wastes. Alternatives for treating the liquid component include deodorization and biological stabilization by ultraviolet radiation and ozonation. Preferred and particularly advantageous embodiments of a membrane filtration system, a liquid treatment subsystem, a solids treatment subsystem, and a flushing subsystem are described.

Membrane process for treating sanitary wastewater

A method and an apparatus for treating wastewater such as sewage are disclosed. Designed principally for complete on-site wastewater treatment and disposal, the system separates wastewater into liquid wastes and solid wastes by filtration, treats the liquid wastes with ultraviolet radiation and disperses them into unsaturated ground. The solid wastes are periodically removed, along with used portions of the paper filter medium and delivered, in the case of sewage, to a composting area where the solids can be composted. A preferred embodiment includes the use of ultraviolet radiation having wavelengths effective both to destroy pathogens directly and to produce ozone from entrained air in the liquid filtrate, to react with pathogens to form stable compounds. An alternate embodiment of a wastewater delivery and filtration suction subsystem is disclosed, whereby filtration is made continuous and capacity is approximately doubled.

Wastewater treatment with ultraviolet disinfection and increased capacity

A method and apparatus for treating wastewater such as sewage are disclosed. Designed principally for complete on-site wastewater treatment and disposal, the system separates wastewater into liquid wastes and solid wastes by filtration, treats the liquid wastes with a mild oxydizing agent and disperses them into unsaturated ground. The solid wastes are periodically removed, along with used portions of the paper filter medium and delivered, in the case of sewage, to a composting area where the still-fresh solids can be aerobically composted. Preferred and particularly advantageous embodiments of a filtering system, a sewage delivery system, a vacuum generating system, and a liquid level sensor, each of which may be used with the invention, are disclosed.

Sewage delivery and filtration system

Filtration system for household sewage

A method and apparatus for treating wastewater such as sewage are disclosed. Designed principally for complete on-site wastewater treatment and disposal, the system separates wastewater into liquid wastes and solid wastes by filtration, treats the liquid wastes with a mild oxidizing agent and disperses them into unsaturated ground. The solid wastes are periodically removed, along with used portions of the paper filter medium and delivered, in the case of sewage, to a composting area where the still-fresh solids can be aerobically composted. Preferred and particularly advantageous embodiments of a filtering system, a sewage delivery system, a vacuum generating system, and a liquid level sensor, each of which may be used with the invention, are disclosed.

Growing community of inventors

Berkeley, CA, United States of America

Steven B Mullerheim