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5403740 Biodegradable compost bins
Biological Waste Treatment and Pollution Control
5403487
to the cells are the determining factors for removal rate. Shape of the micropores in the packing appear to influence activity.
PROCESS FOR BIOCHEMICAL OXIDATION OF ULTRA-TOXIC WASTEWATER IN A PACKED BED BIOREACTOR
5403488 PROCESS FOR THE REGULATION OF AN ACTIVATED SLUDGE CLARIFICATION PLAN
Lodaya Mayur P; Gencer Mehmet A Fremont, OH, UNITED STATES Assigned to The B F Goodrich Company The biochemical oxidation of two wastewater feeds, one containing at least ten times more ammonia nitrogen, and the other at least ten times more chlorinated hydrocarbons, than present in a conventional municipal wastewater stream were treated in an aerated packed bed bioreactor inoculated with microorganisms (ceils) especially cultured and acclimated to the task. Arbitrarily shaped pieces of numerous microporous synthetic resinous materials (familiarly referred to as porous plastics) are discovered to provide not only an excellent packing for the bioreactor, but also a peculiar catalytic function not normally associated with a bio-support. Microporous polytetrafluoroethylene (PTFE foam) appears to be too inert to generate a high level of microbial activity for either feed which was tested, while microporous polyethylene appears to be exactly what the cells ordered. Such activity cannot reasonably be correlated to the overall size of the micropores alone, because a calcined dolomite having substantially the same range of average pore sizes, exhibits a removal rate, measured as rag/rain/m2 of surface, which is generally about ten times lower than the rate obtained with the plastic biosupport, all other process conditions being the same. The comparison was made by simultaneously feeding several columnar glass reactors, each having a packed bed of different porous plastic packing, and one with commercially available microporous Celite trademark. As one might expect,the removal rate per unit volume (liter) of packing appeared not to correlate with the removal rate per unit of surface area, since the distribution of cells over the surface, and the rate at which the substrate is fed
Volsch Andreas; Nader Wemer Beverstedt, GERMANY Assigned to Orpegen MedizinischMolekular-Biologische Forschungsgesellschaft mbH The present invention provides a process for the regulation of the activated sludge step of a clarification plant by control of the decomposition efficiency of the activated sludge, wherein an activated sludge sample is incubated under precisely defined conditions, which are optimised with regard to the pH value, the temperature and the salt concentration, with the substrate or substrates of interest above the saturation range and, in the initial phase, the decrease of the substrate or the increase of a decomposition product is determined kinetically as a measure of the decomposition efficiency for this substrate and the measured value determined is used as regulating value for the control of the clarification plant.
5403740 BIODEGRADABLE COMPOST BINS Menefee Jay; Menefee Michael 44072, UNITED STATES
Novelty, OH,
A biodegradable compost bin comprises a housing made of an organic membrane which may be folded into a relatively small, compact shape for 235
PATENT ABSTRACTS
236
ease of storage and shipment and easily popped open when ready to use. The housing has opposite open ends, one of which is adapted to be positioned on a supporting surface so that the housing forms an enclosure for receipt of the compostable waste materials through the upper open end.
5405531 METHOD FOR REDUCING THE AMOUNT OF AND PREVENTING THE FORMATION OF HYDROGEN SULFIDE IN AN AQUEOUS SYSTEM Hitzman Donald; Sperl George T; Sandbeck Kenneth A Bartlesville, OK, UNITED STATES Assigned to Geo-Microbial Technologies Inc Hydrogen sulfide present in an aqueous system is removed and the production of hydrogen sulfide by sulfate-reducing bacteria (SRB) is eliminated by introducing into the system nitrite and nitrate and/or molybdate ions, whereby denitrifying microorganisms outcompete the sulfate-reducing bacteria for the available carbon nutrients, thus preventing the SRB from producing hydrogen sulfide and the nitrite along with the denitrifying microorganisms remove hydrogen sulfide already present in the system. The system which contains the denitrifying microorganisms and which is essentially free of hydrogen sulfide can enhance oil recovery by means of a microbial enhanced oil recovery mechanisms.
into a humus tank (21). The RBC is divided into separated upstream (15A) and downstream (15B) sections, the chamber (17) containing the downstream section being fed with water to be processed at a controlled rate from the chamber (16) containing the upstream section. A balancing chamber, for isolating the downstream section of the RBC from variations in flow of waste water to the inlet tank (10), includes the upstream section (15A, 16) of the RBC which can act sacrificially in respect of toxic incursions in the waste water.
5407809 DIGESTER ORGANIC
FOR CONVERTING MATERIAL INTO COMPOST
Finn Larry Gladewater, TX, UNITED STATES Assigned to Bedminster Bioconversion Corporation A rotatable digester drum for convening organic waste material into compost which has internally disposed along its longitudinal axis a series of spaced-apart baffles, each baffle having a variable cross sectional area ranging from 60 to 100"7o of the cross sectional area of the drum and arranged with respect to one another when in the partially open mode to cause material and air introduced into the drum to traverse a non-linear path through the drum, the drum having a plurality of longitudinally extending internal ribs arranged in spaced array around its circumference.
5407817 5407578 WASTE
WATER TREATMENT PROCESS
Nathwani Surendra Hemel Hempstead, UNITED KINGDOM Assigned to Klargester Environmental Engineering Limited PCT No. PCT/GB91/02172 Sec. 371 Date Jun. 7, 1993 Sec. 102(e) Date Jun. 7, 1993 PCT Filed Dec. 6, 1991 PCT Pub. No. WO92/10431 PCT Pub. Date Jun. 25, 1992. Waste water containing biodegradable matter is fed to a rotating biological contactor (RBC) (15) from an inlet tank (10) and is discharged from the RBC-containing chamber
MUNICIPAL SOLID WASTE PROCESSING FACILITY AND COMMERCIAL ETHANOL PRODUCTION PROCESS Lightsey George R; Chieffalo Rodge Starkville, MS, UNITED STATES Assigned to Controlled Environmental Systems Corporation A method of processing waste is disclosed wherein tile municipal solid waste is segregated and processed to recover reusable rubber, metal, plastic, glass and tile remaining organic portion of the waste stream is used to make ethanol and other chemicals. A pretreatment step with dilute sulfuric
5403487
to the cells are the determining factors for removal rate. Shape of the micropores in the packing appear to influence activity.
PROCESS FOR BIOCHEMICAL OXIDATION OF ULTRA-TOXIC WASTEWATER IN A PACKED BED BIOREACTOR
5403488 PROCESS FOR THE REGULATION OF AN ACTIVATED SLUDGE CLARIFICATION PLAN
Lodaya Mayur P; Gencer Mehmet A Fremont, OH, UNITED STATES Assigned to The B F Goodrich Company The biochemical oxidation of two wastewater feeds, one containing at least ten times more ammonia nitrogen, and the other at least ten times more chlorinated hydrocarbons, than present in a conventional municipal wastewater stream were treated in an aerated packed bed bioreactor inoculated with microorganisms (ceils) especially cultured and acclimated to the task. Arbitrarily shaped pieces of numerous microporous synthetic resinous materials (familiarly referred to as porous plastics) are discovered to provide not only an excellent packing for the bioreactor, but also a peculiar catalytic function not normally associated with a bio-support. Microporous polytetrafluoroethylene (PTFE foam) appears to be too inert to generate a high level of microbial activity for either feed which was tested, while microporous polyethylene appears to be exactly what the cells ordered. Such activity cannot reasonably be correlated to the overall size of the micropores alone, because a calcined dolomite having substantially the same range of average pore sizes, exhibits a removal rate, measured as rag/rain/m2 of surface, which is generally about ten times lower than the rate obtained with the plastic biosupport, all other process conditions being the same. The comparison was made by simultaneously feeding several columnar glass reactors, each having a packed bed of different porous plastic packing, and one with commercially available microporous Celite trademark. As one might expect,the removal rate per unit volume (liter) of packing appeared not to correlate with the removal rate per unit of surface area, since the distribution of cells over the surface, and the rate at which the substrate is fed
Volsch Andreas; Nader Wemer Beverstedt, GERMANY Assigned to Orpegen MedizinischMolekular-Biologische Forschungsgesellschaft mbH The present invention provides a process for the regulation of the activated sludge step of a clarification plant by control of the decomposition efficiency of the activated sludge, wherein an activated sludge sample is incubated under precisely defined conditions, which are optimised with regard to the pH value, the temperature and the salt concentration, with the substrate or substrates of interest above the saturation range and, in the initial phase, the decrease of the substrate or the increase of a decomposition product is determined kinetically as a measure of the decomposition efficiency for this substrate and the measured value determined is used as regulating value for the control of the clarification plant.
5403740 BIODEGRADABLE COMPOST BINS Menefee Jay; Menefee Michael 44072, UNITED STATES
Novelty, OH,
A biodegradable compost bin comprises a housing made of an organic membrane which may be folded into a relatively small, compact shape for 235
PATENT ABSTRACTS
236
ease of storage and shipment and easily popped open when ready to use. The housing has opposite open ends, one of which is adapted to be positioned on a supporting surface so that the housing forms an enclosure for receipt of the compostable waste materials through the upper open end.
5405531 METHOD FOR REDUCING THE AMOUNT OF AND PREVENTING THE FORMATION OF HYDROGEN SULFIDE IN AN AQUEOUS SYSTEM Hitzman Donald; Sperl George T; Sandbeck Kenneth A Bartlesville, OK, UNITED STATES Assigned to Geo-Microbial Technologies Inc Hydrogen sulfide present in an aqueous system is removed and the production of hydrogen sulfide by sulfate-reducing bacteria (SRB) is eliminated by introducing into the system nitrite and nitrate and/or molybdate ions, whereby denitrifying microorganisms outcompete the sulfate-reducing bacteria for the available carbon nutrients, thus preventing the SRB from producing hydrogen sulfide and the nitrite along with the denitrifying microorganisms remove hydrogen sulfide already present in the system. The system which contains the denitrifying microorganisms and which is essentially free of hydrogen sulfide can enhance oil recovery by means of a microbial enhanced oil recovery mechanisms.
into a humus tank (21). The RBC is divided into separated upstream (15A) and downstream (15B) sections, the chamber (17) containing the downstream section being fed with water to be processed at a controlled rate from the chamber (16) containing the upstream section. A balancing chamber, for isolating the downstream section of the RBC from variations in flow of waste water to the inlet tank (10), includes the upstream section (15A, 16) of the RBC which can act sacrificially in respect of toxic incursions in the waste water.
5407809 DIGESTER ORGANIC
FOR CONVERTING MATERIAL INTO COMPOST
Finn Larry Gladewater, TX, UNITED STATES Assigned to Bedminster Bioconversion Corporation A rotatable digester drum for convening organic waste material into compost which has internally disposed along its longitudinal axis a series of spaced-apart baffles, each baffle having a variable cross sectional area ranging from 60 to 100"7o of the cross sectional area of the drum and arranged with respect to one another when in the partially open mode to cause material and air introduced into the drum to traverse a non-linear path through the drum, the drum having a plurality of longitudinally extending internal ribs arranged in spaced array around its circumference.
5407817 5407578 WASTE
WATER TREATMENT PROCESS
Nathwani Surendra Hemel Hempstead, UNITED KINGDOM Assigned to Klargester Environmental Engineering Limited PCT No. PCT/GB91/02172 Sec. 371 Date Jun. 7, 1993 Sec. 102(e) Date Jun. 7, 1993 PCT Filed Dec. 6, 1991 PCT Pub. No. WO92/10431 PCT Pub. Date Jun. 25, 1992. Waste water containing biodegradable matter is fed to a rotating biological contactor (RBC) (15) from an inlet tank (10) and is discharged from the RBC-containing chamber
MUNICIPAL SOLID WASTE PROCESSING FACILITY AND COMMERCIAL ETHANOL PRODUCTION PROCESS Lightsey George R; Chieffalo Rodge Starkville, MS, UNITED STATES Assigned to Controlled Environmental Systems Corporation A method of processing waste is disclosed wherein tile municipal solid waste is segregated and processed to recover reusable rubber, metal, plastic, glass and tile remaining organic portion of the waste stream is used to make ethanol and other chemicals. A pretreatment step with dilute sulfuric