活性汚泥のシアンへの適応

概要

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The adaptation phenomenon of activated sludge in the second aeration tank of biological treatment of waste water containing cyanide with a two-stage activated sludge process was studied.The activated sludge in the second aeration tank was sensitive to cyanide, therefore, reversible substrate inhibition was seen with cyanide degradation. The activated sludge grown with a higher concentration of cyanide was more resistant to the inhibition by cyanide on cyanide degradation. The maximum rate of cyanide degradation grew larger by increasing the cyanide load to the aeration tank.Respiration of the activated sludge was inhibited by cyanide and the overall respiration rate in the presence of cyanide was approximated by a partial inhibition mechanism in which cyanide acts as modifier. The activated sludge grew under the higher concentration of cyanide, the extent of respiration inhibition with cyanide became smaller.
社団法人日本生物工学会の論文
1977-09-25