Abstract:
A modular secondary wastewater treatment system includes one or more dedicated vessels that perform a single secondary wastewater treatment operation. The reactor vessels may be made by converting standard intermodal transport containers for this purpose. The containers are stood on end with the front of the container forming the bottom of the vessel. Openings in the sidewalls of the vessels are piped to one another to establish the series and parallel flow paths desired for the modular system. The modular system allows for easy and standardized design, transport, set up and operation, with inherent scaling.
Abstract:
A wastewater treatment includes an elevated aeration system. The aeration system is used to provide air and nutrients to biological growth in a wastewater treatment vessel, and to promote circulation of the support media used for the biological growth. The aeration system is elevated from the bottom of the reactor vessel by supports that extend from sidewalls of the vessel, or from suspension systems that hang the aeration system at a desired height. Silt, debris and sludge may be removed from the free space between the elevated aeration system and the vessel floor. Mechanical collection or removal devices may be positioned between the elevated aeration system and the reactor floor.
Abstract:
The invention, as embodied herein, comprises an improved portable maritime scoring and simulation system that comprises three or more buoys that are deployed in an area of water selected for maritime combat training. Attached to each buoy are a global positioning system receiver, an RF radio system, an acoustic analysis system, and a microprocessor. The acoustic analysis system is designed to capture an acoustic signature of ordnance impacting the water with predetermined characteristics. The system includes an RF radio repeater system linked to a system controller to control and monitor the elements of the system. In operation, when an acoustic signature is captured by the acoustic analysis system, the RF radio system, in one embodiment, transmits the time of the capture along with the GPS location of the buoy to the RF radio repeater system linked to the system controller. When three or more buoys transmit a captured acoustic signature, the system controller computes the location of impact using a location process. The invention also includes an improved method of controlling the system.
Abstract:
There is provided a process for treating industrial wastewater (11) that substantially eliminates the generation of excess solids in the system requiring mechanical removal. The wastewater undergoes an equalization step (14, 16) wherein hydraulic flow is smoothed and the pH of the wastewater is adjusted to near neutral ph conditions. The equalized wastewater (17) is then transferred to aeration tanks (20, 22) where the organic process wastes are absorbed, metabolized, or otherwise biodegraded by the micro-organisms in the mixed liquor in the aeration tanks. After the aeration step, the wastewater is separated by gravity in a clarifying step to separate the wastewater into a liquid phase and a semi-solid phase. The clarified liquid phase (30) is withdrawn from the clarifier and discharged, while the semi-solid phase is transferred either directly back to the Aeration/biological treatment step, as recycle-activated sludge (36), or into a bioreactor (32) as waste-activated sludge. In the bioreactor the semi-solid phase is subjected to active aeration. The aerated waste activated sludge is then batch-recycled to the equalization tank (14, 16) discharging to the aeration step where it is mixed into newly introduced untreated wastewater and undergoes a new cycle of biological treatment. As a result of the indirect batchrecycling of bioreactor waste-activated sludge into the mixed liquor (biomass containing waste sludge) under aeration, which is also receiving recycle-activated sludge and enzymes, the excess solids generated in this process virtually eliminated.
Abstract:
In accordance with the teachings of the present invention, a system and method for extending reach in a passive optical network (PON) is provided. In a particular embodiment, a method for extending reach in a PON includes transmitting traffic at a first wavelength from a transmitter at a first optical network unit (ONU) in a PON and transmitting traffic at a second wavelength from a transmitter at a second- ONU in the PON. The method also includes receiving the traffic in the first wavelength at a first input port of a multiplexer at a distribution node in the PON and receiving the traffic in the second wavelength at a second input port of the multiplexer at the distribution node. The method further includes forwarding the traffic in the first wavelength and the traffic in the second wavelength to an optical line terminal (OLT) in the PON.
Abstract:
The invention relates to pressed paperboard containers (10) , such as disposable paper plates and bowls, having increased strength and rigidity, and the processes used to form such containers by the formation of non-radial pleats (30) at outer regions of the container. The invention also provides pleats (30) about the outer periphery that are non-linear along the length of the pleat (30) . Such non-radial and non-linear pleats are formed by forming non-radial and non-linear scores (34) in a blank(36) of paperboard converted into the container geometry.
Abstract:
The invention comprises an improved portable maritime scoring and simulation system that comprises three or more buoys that are deployed in an area of water selected for maritime combat training. Attached to each buoy are a GPS receiver, an RF radio system, an acoustic analysis system, and a microprocessor. The acoustic analysis system is designed to capture an acoustic signature of ordnance impacting the water with predetermined characteristics. The system includes an RF radio repeater system linked to a system controller to control and monitor the elements of the system. When an acoustic signature is captured by the acoustic analysis system, the RF radio system transmits the time of the capture and the GPS location of the buoy to the RF radio repeater linked to the system controller. When three or more buoys transmit a captured acoustic signature, the system controller computes the location of impact using a location process.
Abstract:
There is provided a process for treating industrial wastewater that substantially eliminates the generation of excess solids in the system requiring mechanical removal. The wastewater undergoes an equalization step wherein hydraulic flow is smoothed and the ph of the wastewater is adjusted to near neutral ph conditions. The equalized wastewater is then transferred to aeration tanks where the organic process wastes are absorbed, metabolized, or otherwise biodegraded by the micro-organisms in the mixed liquor in the aeration tanks. After the aeration step, the wastewater is separated by gravity in a clarifying step to separate the wastewater into a liquid phase and a semi-solid phase. The clarified liquid phase is withdrawn from the clarifier and discharged, while the semi-solid phase is transferred either directly back to the Aeration/biological treatment step, as recycle-activated sludge, or into a bioreactor as waste-activated sludge. In the bioreactor the semi-solid phase is subjected to active aeration. The aerated waste activated sludge is then batch-recycled to the equalization tank discharging to the aeration step where it is mixed into newly introduced untreated wastewater and undergoes a new cycle of biological treatment. As a result of the indirect batchrecycling of bioreactor waste-activated sludge into the mixed liquor (biomass containing waste sludge) under aeration, which is also receiving recycle-activated sludge and enzymes, the excess solids generated in this process virtually eliminated.
Abstract:
In accordance with the teachings of the present invention, an upgradeable passive optical network is provided. In a particular embodiment, an upgradeable optical network includes an upstream terminal and a distribution node. The upstream terminal is operable to forward a downstream signal comprising traffic in a first wavelength, the traffic in the first wavelength transmitted by a first transmitter at the upstream terminal. The distribution node is communicatively coupled to the upstream terminal and is operable to communicate the downstream signal from the upstream terminal to a first plurality and a second plurality of downstream terminals. The distribution node comprises a primary power splitter configured to create a plurality of copies of the downstream signal for communication to the downstream terminals. The distribution node is configured to facilitate the addition of a wavelength router at a section of the distribution node such that the wavelength router may be added to the distribution node without interrupting the communication of traffic through the network and such that the addition of the wavelength router allows for routing of traffic in a second wavelength transmitted by a second transmitter to be added at the upstream terminal, the traffic destined for the first plurality of downstream terminals; and routing of traffic in a third wavelength transmitted by a third transmitter to be added at the upstream terminal, the traffic destined for the second plurality of downstream terminals.
Abstract:
A control system and method is described having a framework in which many applications in a user interaction system (UIS) can share common data regardless of which application obtained the data and all without prior knowledge of the other applications. The shared data is typically personal data of the current user, such as name, location, preferences, etc.. However, the system can also be used to share style sheets, announcements, etc., that can be utilized by multiple applications. The data is stored in a standardized manner in a location available to any application. Application's have access to the data based upon user privileges at any particular time.