Abstract: The present inventions are generally directed to surface aerators for aerating water or wastewater in a basin, lagoon or tank. In particular, the present inventions relate to flow straightening vanes incorporated into an aerator volute tube that straighten the intake and discharge flow thereby minimizing or eliminating torque on the unit and on the mooring components of the aeration assembly. The present inventions also improve mixing and aeration.

Abstract: The present inventions are generally directed to surface aerators for aerating water or wastewater in a basin, lagoon or tank. In particular, the present inventions relate to flow straightening vanes incorporated into an aerator volute tube that straighten the intake and discharge flow thereby minimizing or eliminating torque on the unit and on the mooring components of the aeration assembly. The present inventions also improve mixing and aeration.

Abstract: A portable imaging device including a housing comprising a containment portion connected to a gripping portion, a display screen arranged on a proximal end of the containment portion and an image collection port arranged on a distal end of the gripping portion, an input device arranged on or adjacent to the gripping portion, a digital camera arranged in the housing and configured to capture an image of a surface through the image collection port in response to actuation of the input device, and a computing device arranged in the housing and in communication with the digital camera. The computing device is programmed or configured to determine a diameter of an indentation in a surface based on analyzing the image and determine a hardness value based on the diameter. Also, a method of using the portable image device to determine the hardness of a material.

Abstract: A safety access system for use on floats, typically in the field of water and wastewater treatment, the system including rotatable and removable handrails and sockets attached to the float to receive the handrails.

Abstract: A self-deploying float assembly to support mechanical equipment such as aerators and mixers for use in water, wastewater and process water stream treatment basins and a method of installing same.

Abstract: A safety access system for use on floats, typically in the field of water and wastewater treatment, the system including rotatable and removable handrails and sockets attached to the float to receive the handrails.

Abstract: A safety access system for use on floats, typically in the field of water and wastewater treatment, the system including rotatable and removable handrails and sockets attached to the float to receive the handrails.

Abstract: A safety access system for use on floats, typically in the field of water and wastewater treatment, the system including rotatable and removable handrails and sockets attached to the float to receive the handrails.

Abstract: A self-deploying float assembly to support mechanical equipment such as aerators and mixers for use in water, wastewater and process water stream treatment basins and a method of installing same.

Abstract: A self-deploying float assembly to support mechanical equipment such as aerators and mixers for use in water, wastewater and process water stream treatment basins and a method of installing same.

Abstract: A self-deploying float assembly to support mechanical equipment such as aerators and mixers for use in water, wastewater and process water stream treatment basins and a method of installing same.

Abstract: A self-deploying float assembly to support mechanical equipment such as aerators and mixers for use in water, wastewater and process water stream treatment basins and a method of installing same.

Abstract: A self-deploying float assembly to support mechanical equipment such as aerators and mixers for use in water, wastewater and process water stream treatment basins and a method of installing same.

Abstract: A self-deploying float assembly to support mechanical equipment such as aerators and mixers for use in water, wastewater and process water stream treatment basins and a method of installing same.

Abstract: Entrained pyrolysis of lignocellulosic material proceeds from a controlled pyrolysis-initiating temperature to completion of an oxygen free environment at atmospheric pressure and controlled residence time to provide a high yield recovery of pyrolysis oil together with char and non-condensable, combustible gases. The residence time is a function of gas flow rate and the initiating temperature is likewise a function of the gas flow rate, varying therewith. A controlled initiating temperature range of about 400.degree. C. to 550.degree. C. with corresponding gas flow rates to maximize oil yield is disclosed.

Abstract: A method of installing a floatable pump apparatus and an anti-erosion plate at a selected location in a bounded water treatment basin wherein the floatable pump apparatus includes a float having a central opening therethrough and a motor and axial flow propeller-type pump. A winch is temporarily mounted on the upper side of the float and one end of the winch cable is extended downwardly through the central opening in the float and attached to the anti-erosion plate. The float and winch with the anti-erosion plate suspended from the winch cable is then lifted by a shore based crane and deposited in the water treatment basin adjacent the boundary of the basin. The float with the anti-erosion plate buoyantly supported thereby, is moved to the desired location in the basin and the winch then operated to lower the anti-erosion plate onto the bottom of the basin. The float is thereafter moved back to the boundary of the basin.

Abstract: A floating vertical shaft downflow directional mixer apparatus including a float, a motor driven propeller mounted on an upright propeller shaft below the float, and a draft tube extending downwardly from the float and having a lateral discharge outlet. The float is arranged to support the mixer with the propeller shaft generally upright when the mixer is not in operation. The draft tube and lateral discharge outlet are bilaterally symmetrical with respect to a median plane and a thrust reaction line is attached to the lower portion of the draft tube generally symmetrical to the median plane to counteract the reaction forces on the mixer produced by the stream discharged from the discharge outlet and maintain the propeller shaft generally upright when the mixer is in operation.

Abstract: Biomass feedstock raw material is converted to synthesis gas by drying and sizing biomass raw material, pyrolyzing the processed biomass in intimate mixture with inert gases such as combustion products, thereby obtaining a product mixture of char, pyrolysis oil, and pyrolysis gas, and gasifying the char and some of the pyrolysis oil in the presence of steam and oxygen at a temperature sufficient to form the synthesis gas product substantially comprising carbon monoxide and hydrogen.

Abstract: A waste water treatment apparatus of the type in which a carriage support rail extends across the top of the tank intermediate the side walls of the tank and a carriage is mounted on the rail and driven by a carriage drive including an endless chain which reciprocates the carriage along the rail, and a tank cleaning head is mounted on the carriage for movement along a path adjacent the bottom of the tank. The carriage support rail is in the form of a box-shaped beam having inwardly directed flanges at its underside and the chain is mounted inside the box-shaped beam to be protectively enclosed in the beam and the carriage has wheel mounting portions extending upwardly into the beam at opposite sides of the chain and carriage support wheels mounted on the wheel mounting portions inside the beam and in rolling engagement with the flanges on the beam to support the carriage for movement therealong.