Acidogenic pretreatment of wastewaters containing 2-nitrophenol.
Anaerobic Toxicity Assay (ATA) tests were conducted on acidogenic cultures to assess the feasibility of using acidogenic processes to treat wastewaters containing 2-nitrophenol. Results indicated 2-nitrophenol could be removed with a removal efficiency of more than 98%. 2-aminophenol was identified as the major metabolite of the biotransformation of 2-nitrophenol. Reduction in inhibition potential of acidogenic pretreated effluent was observed in the aerobic process. EC50 values of 2-nitrophenol and 2-aminophenol were found to be 0.065 mM and 1.83 mM respectively.
Jinadasa
K B S N
KB
Centre for Water Research, Department of Civil Engineering, National University of Singapore, Singapore 119260.
Mun
C H
CH
Aziz
M A
MA
Ng
W J
WJ
D000143:Acids / Q000737:chemistry*; D000627:Aminophenols / Q000737:chemistry / Q000302:isolation & purification*; D019149:Bioreactors; D001711:Biotransformation; D007928:Lethal Dose 50; D009596:Nitrophenols / Q000737:chemistry / Q000302:isolation & purification*; D012722:Sewage / Q000737:chemistry / Q000382:microbiology; D014865:Waste Disposal, Fluid / Q000379:methods*
D000143:Acids; D000627:Aminophenols; D009596:Nitrophenols; D012722:Sewage