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5360538 Mixed liquor wasting system
New Patents
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program range; differentially beating said feed stream at a heat rate within the first temperature program range to provide differential pyrolysis for selective recovery of optimum quantities of the high value monomeric constituent prior to pyrolysis of other plastic components; separating the high value monomeric constituents; selecting a second higher temperature range to cause pyrolysis of a different high value monomeric constituent of said plastic waste and differentially heating the feedstream at the higher temperature program range to cause pyrolysis of the different high value monomeric constituent; and separating the different high value monomeric constituent.
5359099 CONTROLLED CATALYTIC AND THERMAL SEQUENTIAL PYROLYSIS AND HYDROLYSIS OF MIXED POLYMER WASTE STREAMS TO SEQUENTIALLY RECOVER MONOMERS OR OTHER HIGH VALUE PRODUCTS Evans Robert J; Chum Helena L, Lakewood, CO, UNITED STATES Midwest Research Institute A process of using fast pyrolysis in a carrier gas to convert a plastic waste feedstream having a mixed polymeric composition in a manner such that pyrolysis of a given polymer to its high value monomeric constituent occurs prior to pyrolysis of other plastic components therein comprising: selecting a first temperature program range to cause pyrolysis of said given polymer to its high value monomeric constituent prior to a temperature range that causes pyrolysis of other plastic components; selecting a catalyst and support for treating said feed streams with said catalyst to effect acid or base catalyzed reaction pathways to maximize yield or enhance separation of said high value monomeric constituent in said temperature program range; differentially heating said feed stream at a heat rate within the first temperature program range to provide differential pyrolysis for selective recovery of optimum quantities of the high value monomeric constituent prior to pyrolysis of other plastic components; separating the high value monomeric constituents; selecting a second higher temperature range to cause pyrolysis of a different high value monomeric constituent of said plastic waste and differentially heating the feedstream at the higher temperature program range to cause pyrolysis of the different high value
monomeric constituent: and separating different high value monomeric constituent.
the
5360033 OIL TRANSFER SYSTEM Williams Tom; Goertzen Larry, Erin, CANADA Ecologic Waste Systems Corporation A hazardous fluid removal and storage apparatus for the fail-safe removal and storage of hazardous liquids. An electrically monitored and electropneumatically controlled system provides safe pumping and storage of hazardous liquids with automatic pump shut-down and warning signals for leak detection and full storage tank conditions.
5360538 MIXED LIQUOR WASTING SYSTEM Beard Harold J, Baton Rouge, UNITED STATES
LA,
70806,
In an extended aeration wastewater treatment system having wastewater flowing into a retention basin so as to form mixed liquor within the retention basin, a mixed liquor wasting system is provided, comprising a thickener tank, having a sidewall and a bottom: a waste line having a first end and a second end, the first end fluidly connected to the retention basin, and the second end fluidly connected to the thickener tank, a first flow control device, such as a pump, for continuously removing a portion of the mixed liquor from the basin at a desired constant flow rate through the waste line, positioned in the waste line; a sludge removal line having a ftrst end and a second end, the first end fluidly connected to the bottom of the thickener tank, and the second end fluidly connected to a sludge disposal system; a second flow control device, such as a pump, for removing a concentrated portion of the mixed liquor from the thickener tank, positioned in the sludge removal line; and a return line having a first end and a second end, the first end fluidly connected to the thickener tank above the bottom, and the second end fluidly connected to the retention basin. A method for wasting mixed liquor is provided, comprising the step of continuously removing a portion of the mixed liquor from the basin at a desired constant flow rate.
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program range; differentially beating said feed stream at a heat rate within the first temperature program range to provide differential pyrolysis for selective recovery of optimum quantities of the high value monomeric constituent prior to pyrolysis of other plastic components; separating the high value monomeric constituents; selecting a second higher temperature range to cause pyrolysis of a different high value monomeric constituent of said plastic waste and differentially heating the feedstream at the higher temperature program range to cause pyrolysis of the different high value monomeric constituent; and separating the different high value monomeric constituent.
5359099 CONTROLLED CATALYTIC AND THERMAL SEQUENTIAL PYROLYSIS AND HYDROLYSIS OF MIXED POLYMER WASTE STREAMS TO SEQUENTIALLY RECOVER MONOMERS OR OTHER HIGH VALUE PRODUCTS Evans Robert J; Chum Helena L, Lakewood, CO, UNITED STATES Midwest Research Institute A process of using fast pyrolysis in a carrier gas to convert a plastic waste feedstream having a mixed polymeric composition in a manner such that pyrolysis of a given polymer to its high value monomeric constituent occurs prior to pyrolysis of other plastic components therein comprising: selecting a first temperature program range to cause pyrolysis of said given polymer to its high value monomeric constituent prior to a temperature range that causes pyrolysis of other plastic components; selecting a catalyst and support for treating said feed streams with said catalyst to effect acid or base catalyzed reaction pathways to maximize yield or enhance separation of said high value monomeric constituent in said temperature program range; differentially heating said feed stream at a heat rate within the first temperature program range to provide differential pyrolysis for selective recovery of optimum quantities of the high value monomeric constituent prior to pyrolysis of other plastic components; separating the high value monomeric constituents; selecting a second higher temperature range to cause pyrolysis of a different high value monomeric constituent of said plastic waste and differentially heating the feedstream at the higher temperature program range to cause pyrolysis of the different high value
monomeric constituent: and separating different high value monomeric constituent.
the
5360033 OIL TRANSFER SYSTEM Williams Tom; Goertzen Larry, Erin, CANADA Ecologic Waste Systems Corporation A hazardous fluid removal and storage apparatus for the fail-safe removal and storage of hazardous liquids. An electrically monitored and electropneumatically controlled system provides safe pumping and storage of hazardous liquids with automatic pump shut-down and warning signals for leak detection and full storage tank conditions.
5360538 MIXED LIQUOR WASTING SYSTEM Beard Harold J, Baton Rouge, UNITED STATES
LA,
70806,
In an extended aeration wastewater treatment system having wastewater flowing into a retention basin so as to form mixed liquor within the retention basin, a mixed liquor wasting system is provided, comprising a thickener tank, having a sidewall and a bottom: a waste line having a first end and a second end, the first end fluidly connected to the retention basin, and the second end fluidly connected to the thickener tank, a first flow control device, such as a pump, for continuously removing a portion of the mixed liquor from the basin at a desired constant flow rate through the waste line, positioned in the waste line; a sludge removal line having a ftrst end and a second end, the first end fluidly connected to the bottom of the thickener tank, and the second end fluidly connected to a sludge disposal system; a second flow control device, such as a pump, for removing a concentrated portion of the mixed liquor from the thickener tank, positioned in the sludge removal line; and a return line having a first end and a second end, the first end fluidly connected to the thickener tank above the bottom, and the second end fluidly connected to the retention basin. A method for wasting mixed liquor is provided, comprising the step of continuously removing a portion of the mixed liquor from the basin at a desired constant flow rate.