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J Korean Soc Environ Eng > Volume 37(4); 2015 > Article
J Korean Soc Environ Eng 2015;37(4): 228-233. doi: https://doi.org/10.4491/KSEE.2015.37.4.228
부유 성장식 생물학적 폐수처리에 미치는 아연의 영향
서정범, 황창민
안양대학교 환경에너지공학과
Effect of Zinc on the Suspended Growth Biological Wastewater Treatment
Jeong-Beom Seo, Chang-Min Hwang
Department of Environmental & Energy Engineering, Anyang University
Corresponding author  Jeong-Beom Seo ,Tel: 031-467-0892 , Fax: 031-467-0789, Email: jbseo@anyang.ac.kr
Received: April 1, 2015;  Revised: April 22, 2015;  Accepted: April 28, 2015.  Published online: April 30, 2015.
This study was performed to examine the effect of zinc on the biodegradability, nitrification, denitrification and oxygen uptake rate (OUR) using batch reactor and continuous flow stirred tank reactor (CSTR) of anaerobic/anoxic/oxic (A2/O). The results of this study can be summarized as follows. In the case of the effect of zinc on organic treatment, zinc had no effect up to 12 mg/L with batch reactor but biodegradability was lowered when it was above 3.0 mg/L with CSTR. Concerning the case on nitrification and removal of nitrogen, nitrification rate was lowered when zinc was above 6.0 mg/L with batch reactor and removal rate of nitrogen was lowered when zinc was above 3.0 mg/L with CSTR. Removal rate of phosphorus was lowered when it was above 6.0 mg/L zinc with batch reactor and above 3.0 mg/L zinc with CSTR. In the case of OUR, it decreased as microbial activity was affected when zinc concentration was above 3.0 mg/L in CSTR.
Key Words: Zinc Effect, Biodegradability, Nitrification, Denitrification, Oxygen Uptake Rate
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