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Environmental Engineering Research 2004;9(3): 119-124. DOI: https://doi.org/10.4491/eer.2004.9.3.119
AN EFFECT OF THE REDUCTION OF TOXICITY USING BICARBONATE CATALYST ON WASTEWATER
Jin-Hwa Park
Korea Institute of Environmental Science and Technology, Dept. of Project Management, 613-2, Bulgwang-Dong Eunpyeong-Gu, Seoul, 122-706
Corresponding Author: Jin-Hwa Park ,Tel: +82-2-3800-673, Fax: +82-2-3800-699, Email: sunflower@kiest.org
Received: March 6, 2004;  Accepted: June 4, 2004.
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ABSTRACT
A wastewater treatment plant recently had failures in bioassay tests. There are several industries discharging wastewater to the sewer. There was a strong relationship between total inorganic carbon and % inhibition after biological treatment. The toxicity of the textile mill wastewater was significantly reduced by adding bicarbonate. The sodium bicarbonate addition gave a significant increase in microbial activity indicated by the increase in the oxygen uptake of sodium bicarbonate added systems. This strong effect of bicarbonate addition on oxygen uptake might be due to the binding effect of sodium bicarbonate with ion state metal compounds giving strong toxic effects for microorganisms. In addition, when the percentage of the textile mill wastewater exceeds 5%, a high toxicity remained after TF biomass treatment.
Keywords: bicarbonate | catalyst | reduction | toxicity | wastewater
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EFFECT OF DIVALENT IRON ON METHANOGENIC FERMENTATION OF FAT-CONTAINING WASTEWATER  2001 September;6(3)
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