Liquid purification or separation – Processes – Treatment by living organism
Patent
1992-08-04
1994-01-04
Silverman, Stanley S.
Liquid purification or separation
Processes
Treatment by living organism
210631, 210908, 210749, C02F 312
Patent
active
052757340
ABSTRACT:
Disclosed is a method of treating a process stream from a process producing a non-biodegradable alkylene carbonate stream. The alkylene carbonate is hydrolyzed in a strong, aqueous, alkaline solution to form an aqueous alkaline solution of the corresponding alkylene glycol. This solution is then acidified to a pH of about 8 to 8.5. The acidified solution is aerated in activated sludge to reduce the biological oxugen demand (BOD) of the solution.
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patent: 4786417 (1988-11-01), Miki et al.
patent: 5112491 (1992-05-01), Strantz, Jr.
patent: 5182029 (1993-01-01), Erb
Shurtleff James A.
Unger Kevin P.
Goldman Richard M.
International Business Machines - Corporation
Nessler Cynthia L.
Silverman Stanley S.
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