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4680111 Sewage treatment equipment with activated sludge process beds
432
PATENT ABSTRACTS
troducing biomass in the presence of water at a pressure higher than the partial vapor pressure of water at the prevailing temperature into a reaction zone at a temperature of at least 300£20 + 0 C. and keeping the biomass in the reaction zone for more than 30 seconds, separating solids from fluid leaving the reaction zone while maintaining the remaining fluid in a single phase, and subsequently separating liquids from the remaining fluid, ~7M29 NITRIFICATION-INHIBITING 1-HYDROXYPYRAZOLE DERIVATIVES Norbert Rieber, Heinrich Boehm, ErnstHeinrich Pommer, Juergen Dressel, Mannheim, Federal Republic Of Germany assigned to BASF Aktiengesellschaft l-Hydroxypyrazole derivatives of the formula (I) See Patent for Chemical Structure (I) where A is See Patent for Chemical Structure n is 0 or 1, R 1, R2 and R3 independently of one another are each hydrogen, chlorine, bromine or iodine, R4 is hydrogen, a straight-chain or branched, openchain alkyl, alkenyl or alkynyl radical, a cyclic alkyl, alkenyl or alkynyl radical or aryl or aralkyl, and the radicals R4 which are capable of substitution may furthermore be monosubstituted or polysubstituted by halogen, haloalkyl, haloalkoxy, alkyl, alkoxy, alkoxycarbonyl, £13 OH, + 50 O, + 13 COOH or salts of this, +13 N O + H D 2 + L or +13 CN, have a nitrification-inhibiting action. Substances where R + H U 4 + L is not hydrogen when n is 0 are novel by halogen, haloalkyl, haloalko xy, alkyl, alkoxy, alkoxycar bonyl, + 13 OH, + 50 O, + 13 COOH or salts of this, + 13 N O + H D 2 + L or + 13 CN, have a nitrification-inhibiting action. Substances where R + HU 4 + L is not hydrogen when n is 0 are novel bonyl, + 13 OH, + 50 O, +13 COOH or salts of this, +13 N O + H D 2 + L or +13 CN, have a nitrification-inhibiting action. Substances where R + H U 4 + L is not hydrogen when n is 0 are novel.
4676906 HYBRID HIGH RATE ANAEROBIC TREATMENT PROCESS George V Crawford. Paul F DaSilva, Toronto, Canada assigned to Gore & Storrie Limited An anaerobic reactor for treatment of waste
water comprises a primary reactor or zone of the suspended growth type and a secondary reactor or zone of the fixed filter bed type disposed directly above and in liquid contact with the primary reactor. Liquid to be treated is fed continuously into the primary reactor and moves upwardly through the primary reactor, then through the filter bed and out via an outlet above the filter bed. Gas generated in the primary reactor moves upwardly through the liquids and through the filter bed, to cause vertical mixing throughout the zones and to keep the filter bed from clogging. 4680111 SEWAGE TREATMENT EQUIPMENT WITH ACTIVATED SLUDGE PROCESS BEDS lwao Ueda, Kyoto, Japan assigned to Ueda lwao; Ueda Chie A sewage treatment equipment with activated sludge process beds comprising a plurality of treatment tanks arranged in a row, each communicating with an adjacent tank through a passage and being provided with an aeration tank connected with an air in-flow pipe and a plurality of activated sludge process beds disposed vertically above the aeration pipe and in each of which a mesh-like or grid-like outer periphery of a cylindrical core is wrapped with a porous member of a certain thickness and further tightened with tightening belts, characterized in that an outer peripheral area of the cylindrical core is increased tank by tank to give variety to kind of bacteria, bredding ratio between bacterias and distribution thereof.
4681612 PROCESS FOR THE SEPARATION OF LANDFILL GAS Brien John V O£3, Arthur S Holmes, Richard B Hopewell assigned to Koch Process Systems lnc A recycle process for the separation of landfill gas containing a wide variety of impurities into a carbon dioxide product stream and a fuel-gradepressurized methane product stream, the process providing for the removal of both the impurities and the carbon dioxide in a cryogenic column as a bottom stream, the separation of the methane from the overhead product stream by a membrane process, and, optionally, the removal of
PATENT ABSTRACTS
troducing biomass in the presence of water at a pressure higher than the partial vapor pressure of water at the prevailing temperature into a reaction zone at a temperature of at least 300£20 + 0 C. and keeping the biomass in the reaction zone for more than 30 seconds, separating solids from fluid leaving the reaction zone while maintaining the remaining fluid in a single phase, and subsequently separating liquids from the remaining fluid, ~7M29 NITRIFICATION-INHIBITING 1-HYDROXYPYRAZOLE DERIVATIVES Norbert Rieber, Heinrich Boehm, ErnstHeinrich Pommer, Juergen Dressel, Mannheim, Federal Republic Of Germany assigned to BASF Aktiengesellschaft l-Hydroxypyrazole derivatives of the formula (I) See Patent for Chemical Structure (I) where A is See Patent for Chemical Structure n is 0 or 1, R 1, R2 and R3 independently of one another are each hydrogen, chlorine, bromine or iodine, R4 is hydrogen, a straight-chain or branched, openchain alkyl, alkenyl or alkynyl radical, a cyclic alkyl, alkenyl or alkynyl radical or aryl or aralkyl, and the radicals R4 which are capable of substitution may furthermore be monosubstituted or polysubstituted by halogen, haloalkyl, haloalkoxy, alkyl, alkoxy, alkoxycarbonyl, £13 OH, + 50 O, + 13 COOH or salts of this, +13 N O + H D 2 + L or +13 CN, have a nitrification-inhibiting action. Substances where R + H U 4 + L is not hydrogen when n is 0 are novel by halogen, haloalkyl, haloalko xy, alkyl, alkoxy, alkoxycar bonyl, + 13 OH, + 50 O, + 13 COOH or salts of this, + 13 N O + H D 2 + L or + 13 CN, have a nitrification-inhibiting action. Substances where R + HU 4 + L is not hydrogen when n is 0 are novel bonyl, + 13 OH, + 50 O, +13 COOH or salts of this, +13 N O + H D 2 + L or +13 CN, have a nitrification-inhibiting action. Substances where R + H U 4 + L is not hydrogen when n is 0 are novel.
4676906 HYBRID HIGH RATE ANAEROBIC TREATMENT PROCESS George V Crawford. Paul F DaSilva, Toronto, Canada assigned to Gore & Storrie Limited An anaerobic reactor for treatment of waste
water comprises a primary reactor or zone of the suspended growth type and a secondary reactor or zone of the fixed filter bed type disposed directly above and in liquid contact with the primary reactor. Liquid to be treated is fed continuously into the primary reactor and moves upwardly through the primary reactor, then through the filter bed and out via an outlet above the filter bed. Gas generated in the primary reactor moves upwardly through the liquids and through the filter bed, to cause vertical mixing throughout the zones and to keep the filter bed from clogging. 4680111 SEWAGE TREATMENT EQUIPMENT WITH ACTIVATED SLUDGE PROCESS BEDS lwao Ueda, Kyoto, Japan assigned to Ueda lwao; Ueda Chie A sewage treatment equipment with activated sludge process beds comprising a plurality of treatment tanks arranged in a row, each communicating with an adjacent tank through a passage and being provided with an aeration tank connected with an air in-flow pipe and a plurality of activated sludge process beds disposed vertically above the aeration pipe and in each of which a mesh-like or grid-like outer periphery of a cylindrical core is wrapped with a porous member of a certain thickness and further tightened with tightening belts, characterized in that an outer peripheral area of the cylindrical core is increased tank by tank to give variety to kind of bacteria, bredding ratio between bacterias and distribution thereof.
4681612 PROCESS FOR THE SEPARATION OF LANDFILL GAS Brien John V O£3, Arthur S Holmes, Richard B Hopewell assigned to Koch Process Systems lnc A recycle process for the separation of landfill gas containing a wide variety of impurities into a carbon dioxide product stream and a fuel-gradepressurized methane product stream, the process providing for the removal of both the impurities and the carbon dioxide in a cryogenic column as a bottom stream, the separation of the methane from the overhead product stream by a membrane process, and, optionally, the removal of