B. WICHITSATHIAN, S. SINDHUJA, C. VISVANATHAM AND K.H. AHN
Abstract
The impact of ammonia toxicity in the biological leachate treatment was evaluated using biokinetic and pilot-scale membrane bioreactor. The biokinetic parameters were measured using respirometer by varying the substrate and ammonia concentration. A maximum specific growth rate of 0.42 d-1 was obtained and was found to be lower than that of the domestic wastewater (6 d-') indicating the difficulty in biodegradability. A bacterial inhibition of 28% occurred at ammonium concentration of 1,000-2,000 mg 1-1, when toxicity was evaluated using respirometer, Further, when leachate-was treated in membrane bioreactor, similar pattern of bacterial inhibition was observed.