Wastech International Inc.

Clivus Multrum, Inc.

In-pipe Technology, LLC

Guy D Marchesseault

John M Rummler

Thomas R Beal

Heinz Sauk-Schubert

J Rodney Dickerson

John Williams

Steven McHenry

Daniel R Williamson, Jr

H David Harmoning

Christine L Robblee

Robert C Fischer

The invention is directed to wastewater treatment and wastewater reuse. A distributed biological treatment system for modification of the sewer biofilm through the mechanism of competitive exclusion by strategic dosing with facultative bacteria is illustrated, in conjunction with a novel membrane biological reactor (MBR)/biological breeding reactor (BBR) package plant, a plurality of which are likewise designed for strategic placement throughout the sewer/collection system infrastructure. The inclusion of the MBR/BBR plants at specific locations within the distribution system provide upstream water reclamation, thereby facilitating more efficient operation of the downstream wastewater treatment plant and providing for water reuse at intermediate points within the distribution network, as well as a means for concentrating the facultative bacteria which has been dosed to various points in the system, which can then be re-inoculated to the system.

Distributed facultative bacteria water treatment system with membrane biological reactor package plant augmentation

An improved waste treatment system and improved waste treatment system components are provided. In a preferred form, a waste stream is initially separated into primarily solid and primarily liquid components, and the liquids are then fed to a filter assembly. The filter assembly includes a pair of filter elements, and the flow is introduced into the filter assembly at a location between the filter elements. During a filtering operation, the liquid is pumped so that it is drawn through one of the filter elements. Periodically, the flow can be reversed, so that it is directed through the other filter element, at which time the first filter element can also be purged or back flushed. Advantageous waste treatment system arrangements are also provided for household, commercial, or transportation/marine use.

Waste treatment system

A materials treatment system which initially separates liquid and solid components with a separator. The system can be advantageously utilized for household sewage handling, however various components have other applications. Once the separator separates the solids and liquids, a fire tube combusts the solids with microwaves. The liquids exiting the separator are treated in a liquid treatment system which includes additional particle filtration/separation, treatment of the liquids with an oxidant liquid, and an ultraviolet treatment. An advantageous microwave cavity assembly is also provided for dehydration/combustion of solids exiting the separator and/or for solids filtered from liquids in the liquid treatment system.

Filtration and treatment system

A treatment system is provided which can treat solid materials and/or liquid materials. Preferably, a separator initially separates liquid and solid materials, and the solid materials are deposited upon a substrate within a microwave cavity. Liquids remaining with the solid materials drain through the substrate, and the solid materials are subjected to microwaves. The liquids exiting the separator are preferably also passed through a filter assembly which retains any suspended particles remaining in the liquid, and subjects the particles to microwaves. Exhaust filters can also be provided for the microwave cavities, and the exhaust filters can also be subject to microwaves to incinerate any particles remaining in the exhaust gas. Fire tube arrangements for incinerating solid materials retained or extracted by substrates or filters are also provided.

Treatment system

A materials treatment system which includes filtration and treatment of solid and liquid components of a material, such as a waste material. A filter or substrate assembly is provided which allows liquids to pass therethrough, while retaining solids. The solids are then incinerated utilizing microwave energy, and the liquids can be treated after passing through the filter element, for example, utilizing a treatment liquid such as an oxidant liquid. The filter assembly can also include an exhaust filter assembly which removes solids or particulate matter from exhaust gasses, with the retained solids/particulates incinerated utilizing microwave energy.

A liquid waste reduction system uses an evaporator having two packed columns. A reservoir of the evaporator has three level sensor which monitor the fluid level in the reservoir. An input pump delivers waste liquid to the reservoir. When the fluid level has exceeded a low level, a control unit powers an output pump which pumps liquid from the base of the reservoir to an external storage unit. A distributor pump pumps liquid from the reservoir to the top of the packed columns. A blower forces air upward through the packing material to evaporate water from the liquid. When the fluid level has exceeded a high level, the control unit switches on a heating element which heats the air delivered from the blower to the second packed column, thus accelerating the evaporation process. When the fluid level has exceeded the maximum level, the control unit deactivates the input pump to prevent flooding of the evaporator unit.

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Boxford, MA, United States of America

Guy D Marchesseault