Pec Research, Inc.

Other

Donald M Stearns

Walter D Haentjens

Thomas E Stirling

A process for treating wastewater containing insoluble solid waste material and soluble solid waste material including the following series of steps: (1) controlling the oxygen content of the wastewater to a level at which growth of anaerobic bacteria is substantially eliminated, (2) separating the insoluble solid waste material from the wastewater, (3) treating the soluble solid material in the wastewater with a predetermined amount of aerobic bacteria, and (4) reducing the amount of aerobic bacteria in the wastewater. The insoluble solid waste material separated from the wastewater can be burned to produce electrical energy. Apparatus for carrying out the process are also disclosed.

Apparatus for wastewater treatment

A method and the apparatus for the dissolving gas in liquid, in particular, dissolving oxygen and elimination of variable flow rates in wastewater collection and transmission systems that provides the means to stop the generation of toxic chemicals, allows existing pipeline capacities to be doubled, provides twice the capacity from existing wastewater treatment plants and improves the quality of the discharge of the wastewater treatment plant.

Method and apparatus for dissolving gas in liquid, e.g., in wastewater

A closed loop, recycle, condensing dual velocity, air stripper for the removal of organic contaminates from surface water and sub-surface water that provides a system completely different from current designs in that it does not transfer the problem from the water to the air, but removes the problem of organic contamination from the water without any open air discharge and therefore meets the standards of the 1990 Clean Air Act.

Process and system for separating and condensing contaminants from a

This invention consists of a method of operation of a Self-Propelled Barge that is capable of supporting six integrated process systems for the continuous recovery of surface and sub-surface Oil or Oil Products spilled into Fresh, Brackish or Sea Water. The six major process systems provided by the invention are as follows: (1) A wave following positioning system that will provide the correct distance below the surface of the Water in order to allow the introduction of a process for the flotation and compaction of surface and sub-surface of Oil by entrained and super saturated dissolved Air. (2) A process system that provides maximum efficiency of flotation and compaction of Oil by providing a recirculated water supply with entrained and super saturated dissolved Air. (3) A process system that provides a Wave following adjustable positioning vacuum collection system for the compacted Oil film on the surface of the Water. (4) A vacuum collection system that combines a vacuum receiver and a separation column to provide both collection and separation in a single process stage. (6) A secondary gravity separation process to further increase the efficiency of the Oil/Water separation. A combined process system to store recovered Oil on board the Barge and to also transfer the recovered Oil to an independent Oil storage bulk carrier.

Barge mounted oil recovery and recycle system

A process for the containment and recycle of organic vapors from an open container or tank that utilizes a chilled gas blanket over the surface of the organic liquid, with a continuous recirculaton of the chilled gas through a condenser heat exchanger for cooling the gas flow and condensing and returning the condensed vapor to the tank or container. Included are the means of distribution of the recirculated chilled gas, the means of collecting the recirculated chilled gas, the means of providing an enclosed chilled gas recirculation system, the apparatus for condensing the vapor to liquid, the apparatus for collecting and recycling the condensed vapor, the apparatus for providing a full open access to the top of the tank or container and the apparatus for control of the flow of the recirculated chilled gas.

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Cocoa, FL, United States of America

Donald M Stearns