- Email: [email protected]
5536325 Method of treating biomass material
310
PATENT ABSTRACTS
A microbubble generator is disclosed for optimizing the rate and amount of oxygen transfer to microbial inocula or biocatalysts in bioreactor systems. The microbubble generator, and an associated immobilized cell reactor, are useful in the detoxification and cleanup of non-volatile polymeric and volatile organic-contaminated aqueous streams. In particular, they are useful in the and mineralization continuous toxic organic biodegradation of compounds, including volatile organic compounds, associated with industrial and municipal effluents, emissionsand ground water and other aqueous discharges. One embodiment of the invention includes a microbubble chamber packed with small inert particles through which a liquid effluent and oxygen or another gas are admitted under pressure, followed by a venturi chamber to further reduce the size of bubbles. 5534147 APPARATUS AND METHOD FOR MODIFYING WASTE
5534437 CO-COMPOSTING AND APPARATUS
An apparatus and method for modifying waste water to reduce nitrate content and biochemical oxygen demand is provided. The apparatus includes an ammonitication and denitrification region having a substantially anaerobic environment, a nitritication region having a substantially aerobic environment, and an effluent Effluent circulates drainage region. ammonification and the through denitrification region and the nitrification organic convert region to nitrogen-containing compounds in waste water to nitrogen gas and carbon dioxide.
FOR
TREATING SOLID WASTE SEWAGE SLUDGE
AND
Arrau Agustin H Mill Neck, NY, UNITED STATES assigned to Bio-Waste Technologies International Ltd A method for converting municipal solid waste and sewage sludge into an organic fertilizer has a Stage 1 and a Stage 2, and includes a vessel that has three climate zones. Stage 1 has three climate zones, wherein the first climate zone contains thermophilic microorganisms, the second mesophilic climate zone contains microorganisms, and the third climate zone contains other microorganisms. The product of Stage 1 is reintroduced into Stage 2 and is then inoculated with a biodegrading enzyme and a bacteria species to produce a different final product fertilizer from Stage 2.
WATER Kallenbach Thomas J; Buchanan Justin; Goodrich Matthew H; Skinner Ronald; Poncelet Greg; Kallenbach Trina J MT, UNITED STATES Bozeman, assigned to Fluidyne Incorporated
PROCESS
5536325 METHOD BIOMASS Brink David L STATES
OF TREATING MATERIAL Berkeley, CA, UNITED
Two stage hydrolysis of lignocellulosic material, conditions during the first stage being such as to hydrolyze or hemicellulosic the depolymerize component without substantial degradation of resulting monosaccharides, conditions during the second stage being such as to hydrolyze the cellulose to glucose without substantial degradation of the glucose. The solids left after first stage hydrolysis are disintegrated mechanically thereby greatly facilitating second stage hydrolysis. Hydrolysis in both stages is preferably
PATENT ABSTRACTS
accomplished by the use of nitric acid. The pH retention time and temperature in both stages ae selected to maximize production of the” desired monosaccharide or monosaccharides. 5536403 LIQUID
WITH
MICROFILTRATION MEANS, DISINFECTION MEANS AND ADSORPTION Sugimoto JAPAN
Akitoshi
available dimension. 5536407 NITRIFICATION AND DENITRIFICATION WASTEWATER
PURIFICATION
SYSTEM
311
MEANS Kochi
shi, Kochi,
The liquid purification system of the present invention has a double-tank structure comprising an inner tank and an outer tank that are in communication with one another so that either one of the microfiltration means and the adsorption means may be accommodated is in the inner tank, and the microfiltration means or the adsorption means that is not accommodated in the inner tank may be accommodated in the outer tank, with the disinfection system being provided on the liquid line connecting the inner and the outer tanks. Since the liquid purification system of the present invention has such an arrangement, the system is quite compact in size to facilitate an easy installation and maintenance at low cost while the system satisfies various performances required for the system used for the purification by filtration, disinfection and adsorption of pool water; drinking water and beverages; industrial water; waste water; rain water and water from river, lake or sea; and the like. It should also be noted that the liquid purification system of the present invention may be assembled by using porous ceramic filters of commercially
TREATMENT
PROCESS Petersen Gert Dragoer, assigned to I Kruger Inc
DENMARK
The present invention entails a nitrification-denitrification wastewater treatment process where nitrification and denitrification is carried out in three separate treatment basins. First, wastewater influent is directed from a supply line into a first basin where the wastewater is subject to denitritication. Wastewater held in a second basin is subjected to nitriftcation while the influent wastewater is directed into the first basin. Effluent from the first basin that is being tilled is directed directly to a third basin which performs both denitrification and nitrification at various times during the total process. Purified wastewater from the third basin is directed to a clarifier which separates activated sludge from the purified wastewater and the activated sludge is returned and mixed with the influent wastewater. After a selected time period the influent wastewater being directed to the first treatment basin is switched to where the wastewater influent is now directed into the second treatment basin. Effluent from the second treatment basin is directed directly into the third treatment basin. Throughout the process, each basin is alternately switched between aerobic (Ae) and anoxic (Ao) treatment such that at various times both nitritication and denitritication can be carried out in each of the three basins.
PATENT ABSTRACTS
A microbubble generator is disclosed for optimizing the rate and amount of oxygen transfer to microbial inocula or biocatalysts in bioreactor systems. The microbubble generator, and an associated immobilized cell reactor, are useful in the detoxification and cleanup of non-volatile polymeric and volatile organic-contaminated aqueous streams. In particular, they are useful in the and mineralization continuous toxic organic biodegradation of compounds, including volatile organic compounds, associated with industrial and municipal effluents, emissionsand ground water and other aqueous discharges. One embodiment of the invention includes a microbubble chamber packed with small inert particles through which a liquid effluent and oxygen or another gas are admitted under pressure, followed by a venturi chamber to further reduce the size of bubbles. 5534147 APPARATUS AND METHOD FOR MODIFYING WASTE
5534437 CO-COMPOSTING AND APPARATUS
An apparatus and method for modifying waste water to reduce nitrate content and biochemical oxygen demand is provided. The apparatus includes an ammonitication and denitrification region having a substantially anaerobic environment, a nitritication region having a substantially aerobic environment, and an effluent Effluent circulates drainage region. ammonification and the through denitrification region and the nitrification organic convert region to nitrogen-containing compounds in waste water to nitrogen gas and carbon dioxide.
FOR
TREATING SOLID WASTE SEWAGE SLUDGE
AND
Arrau Agustin H Mill Neck, NY, UNITED STATES assigned to Bio-Waste Technologies International Ltd A method for converting municipal solid waste and sewage sludge into an organic fertilizer has a Stage 1 and a Stage 2, and includes a vessel that has three climate zones. Stage 1 has three climate zones, wherein the first climate zone contains thermophilic microorganisms, the second mesophilic climate zone contains microorganisms, and the third climate zone contains other microorganisms. The product of Stage 1 is reintroduced into Stage 2 and is then inoculated with a biodegrading enzyme and a bacteria species to produce a different final product fertilizer from Stage 2.
WATER Kallenbach Thomas J; Buchanan Justin; Goodrich Matthew H; Skinner Ronald; Poncelet Greg; Kallenbach Trina J MT, UNITED STATES Bozeman, assigned to Fluidyne Incorporated
PROCESS
5536325 METHOD BIOMASS Brink David L STATES
OF TREATING MATERIAL Berkeley, CA, UNITED
Two stage hydrolysis of lignocellulosic material, conditions during the first stage being such as to hydrolyze or hemicellulosic the depolymerize component without substantial degradation of resulting monosaccharides, conditions during the second stage being such as to hydrolyze the cellulose to glucose without substantial degradation of the glucose. The solids left after first stage hydrolysis are disintegrated mechanically thereby greatly facilitating second stage hydrolysis. Hydrolysis in both stages is preferably
PATENT ABSTRACTS
accomplished by the use of nitric acid. The pH retention time and temperature in both stages ae selected to maximize production of the” desired monosaccharide or monosaccharides. 5536403 LIQUID
WITH
MICROFILTRATION MEANS, DISINFECTION MEANS AND ADSORPTION Sugimoto JAPAN
Akitoshi
available dimension. 5536407 NITRIFICATION AND DENITRIFICATION WASTEWATER
PURIFICATION
SYSTEM
311
MEANS Kochi
shi, Kochi,
The liquid purification system of the present invention has a double-tank structure comprising an inner tank and an outer tank that are in communication with one another so that either one of the microfiltration means and the adsorption means may be accommodated is in the inner tank, and the microfiltration means or the adsorption means that is not accommodated in the inner tank may be accommodated in the outer tank, with the disinfection system being provided on the liquid line connecting the inner and the outer tanks. Since the liquid purification system of the present invention has such an arrangement, the system is quite compact in size to facilitate an easy installation and maintenance at low cost while the system satisfies various performances required for the system used for the purification by filtration, disinfection and adsorption of pool water; drinking water and beverages; industrial water; waste water; rain water and water from river, lake or sea; and the like. It should also be noted that the liquid purification system of the present invention may be assembled by using porous ceramic filters of commercially
TREATMENT
PROCESS Petersen Gert Dragoer, assigned to I Kruger Inc
DENMARK
The present invention entails a nitrification-denitrification wastewater treatment process where nitrification and denitrification is carried out in three separate treatment basins. First, wastewater influent is directed from a supply line into a first basin where the wastewater is subject to denitritication. Wastewater held in a second basin is subjected to nitriftcation while the influent wastewater is directed into the first basin. Effluent from the first basin that is being tilled is directed directly to a third basin which performs both denitrification and nitrification at various times during the total process. Purified wastewater from the third basin is directed to a clarifier which separates activated sludge from the purified wastewater and the activated sludge is returned and mixed with the influent wastewater. After a selected time period the influent wastewater being directed to the first treatment basin is switched to where the wastewater influent is now directed into the second treatment basin. Effluent from the second treatment basin is directed directly into the third treatment basin. Throughout the process, each basin is alternately switched between aerobic (Ae) and anoxic (Ao) treatment such that at various times both nitritication and denitritication can be carried out in each of the three basins.