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5478473 Method and device for purifying water
PATENT ABSTRACTS
The lipase enzyme can be used in conjunction with other enzymes. The non-ionic emulsifying agent can comprise an alcohol ethoxylate, the water soluble organic acid preservative can comprise sorbic acid and the water soluble stabilizer can comprise glycerol. A method for treating water containing acylglycerol esters with the foregoing compositions is also disclosed. 5474919 BIOCONVERSION FOR
THE
PROCESS
SYNTHESIS
TRANSHYDROXY RHODOTORULA RHODOTORULA
OF
SULFONE
BY
303
through a filter layer preferably consisting of a floating filter layer, and by contacting aerobic bacterial flocks, which are formed in the filter layer in time, with the mud in the river bottom typically placed in an anaerobic condition so that denitrification of the river water by denitrifying bacteria may be promoted. Thus, the present invention assists the natural biological purification process, and can improve The transparency of the water, reduce BOD and COD, promote denitritication to a sufficient extent to make the water liveable for fish, and trap low concentration toxic chemical substances such as insecticides and herbicides into the bacterial flocks.
RUBRA OR PILIMINAE
Chartrain Michel M; Katz Lorraine G; King Steven Westfield, NJ, UNITED STATES assigned to Merck & Co Inc There is disclosed a novel microbial bioconversion process for the synthesis of a trans-hydroxy sulfone intermediate, which is the precursor to topical carbonic anhydrase inhibitors (TCAI’s). TCAI’s are effective in the treatment of glaucoma and ocular hypertension. The bioconversion process is carried out in the presence of the microorganism Rhodotorula rubra, or Rhodotorula piliminae and results in a trans-hydroxy sulfone which exhibits a diastereomeric excess of greater than 95%.
5478473 METHOD AND DEVICE FOR PURIFYING WATER Oshima Katsutoshi Tokyo, JAPAN assigned to Zaidan Hojin Nanyo Kyokai A body of water is purified by filtering its water both physically and biologically
5480548 WASTEWATER PHOSPHORUS
BIOLOGICAL REMOVAL
PROCESS Daigger Glen T; Stephenson Joseph P; Nolasco Daniel A; Stafford Dalton; Kaupp Douglas M Englewood, CO, UNITED STATES assigned to CH2M Hill Inc The present invention relates to a process for treating wastewater utilizing a step feed return activated sludge process. The wastewater is directed via one or more step feed points through a mainstream process. The step feed point includes at least one aerobic zone and at least one anoxic zone, in repeating or alternating sequence. A portion of eftluent from the one or more anoxic zones are fed through at least one anaerobic zone to which raw or pretreated wastewater is fed and returned to the upstream portion of the anoxic zone. Additionally, return activated sludge may be recycled to one or more of the anoxic zones.
The lipase enzyme can be used in conjunction with other enzymes. The non-ionic emulsifying agent can comprise an alcohol ethoxylate, the water soluble organic acid preservative can comprise sorbic acid and the water soluble stabilizer can comprise glycerol. A method for treating water containing acylglycerol esters with the foregoing compositions is also disclosed. 5474919 BIOCONVERSION FOR
THE
PROCESS
SYNTHESIS
TRANSHYDROXY RHODOTORULA RHODOTORULA
OF
SULFONE
BY
303
through a filter layer preferably consisting of a floating filter layer, and by contacting aerobic bacterial flocks, which are formed in the filter layer in time, with the mud in the river bottom typically placed in an anaerobic condition so that denitrification of the river water by denitrifying bacteria may be promoted. Thus, the present invention assists the natural biological purification process, and can improve The transparency of the water, reduce BOD and COD, promote denitritication to a sufficient extent to make the water liveable for fish, and trap low concentration toxic chemical substances such as insecticides and herbicides into the bacterial flocks.
RUBRA OR PILIMINAE
Chartrain Michel M; Katz Lorraine G; King Steven Westfield, NJ, UNITED STATES assigned to Merck & Co Inc There is disclosed a novel microbial bioconversion process for the synthesis of a trans-hydroxy sulfone intermediate, which is the precursor to topical carbonic anhydrase inhibitors (TCAI’s). TCAI’s are effective in the treatment of glaucoma and ocular hypertension. The bioconversion process is carried out in the presence of the microorganism Rhodotorula rubra, or Rhodotorula piliminae and results in a trans-hydroxy sulfone which exhibits a diastereomeric excess of greater than 95%.
5478473 METHOD AND DEVICE FOR PURIFYING WATER Oshima Katsutoshi Tokyo, JAPAN assigned to Zaidan Hojin Nanyo Kyokai A body of water is purified by filtering its water both physically and biologically
5480548 WASTEWATER PHOSPHORUS
BIOLOGICAL REMOVAL
PROCESS Daigger Glen T; Stephenson Joseph P; Nolasco Daniel A; Stafford Dalton; Kaupp Douglas M Englewood, CO, UNITED STATES assigned to CH2M Hill Inc The present invention relates to a process for treating wastewater utilizing a step feed return activated sludge process. The wastewater is directed via one or more step feed points through a mainstream process. The step feed point includes at least one aerobic zone and at least one anoxic zone, in repeating or alternating sequence. A portion of eftluent from the one or more anoxic zones are fed through at least one anaerobic zone to which raw or pretreated wastewater is fed and returned to the upstream portion of the anoxic zone. Additionally, return activated sludge may be recycled to one or more of the anoxic zones.