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비스페놀 A 함유페수의 호기성 및 혐기성처리에 대한 연구 ( I ) < UASB법에 의한 비스페놀 A 함유페수 처리 >
진창숙(Chang Suk Jin),문서연(Seo Yeon Moon),강호(Ho Kang) 한국물환경학회 2000 한국물환경학회지 Vol.16 No.3
This paper was to examined the possibility of anaerobic treatment of bisphenol A (BPS -containing wastewater and anaerobic metabolic pathway of BPA using Upflow Anaerobic Sludge Blanket (UASB) process. The results showed that BPA was easily biodegraded between 5-25㎎/L. At the BPA concentration above 30㎎/L, BPA was not degraded anymore owed to the defect of granules. The longer the UASB granules adapted the better BPA degrading activities observed in the UASB reactor. When became clear the BPA degradation was totally independent of co-substrate such as methanol. Two peaks were detected as anaerobic BPA degradation intermediate metabolites, but these were completely removed as the time proceeds.
유병로 ( Byong-ro Ryu ),진창숙 ( Chang-suk Jin ) 한국환경기술학회 2005 한국환경기술학회지 Vol.6 No.2
본 논문에서는 탄소원의 추가 공급 없이 황을 이용하여 황산화탈질미생물에 의한 탈질을 유도하는 독립영양탈질공정인 SOD Process(Sulfur Oxidation Denitrification Process; 황산화탈질공법)의 성능과 본 공법의 충진담체인 JSC Pellet의 특성에 대하여 실험하였다. 기존의 황산화탈질공법과의 성능 비교 및 유기물질의 농도변화에 따른 탈질 제거효율, 고농도 질산성 질소의 처리 등에 대해서도 검토하였다. 종속영양탈질법에서는 탈질을 위해 유기탄소원과 알칼리도가 필요하다. 전자공여체인 유기탄소원이 처리대상 하ㆍ폐수에 충분할 경우에는 문제가 되지 않으나, 국내의 하수 및 공장폐수 등과 같이 유기탄소원이 부족한 경우에는 메탄올과 같은 유기탄소원을 첨가해 주어야 한다. SOD 공법은 자체영양원으로 질소제거가 가능하여 질산성 질소 농도가 200mg/L일 경우 96%이상의 제거 효율을 보였다. 질산성 질소를 500mg/L까지 상승시키자 직렬로 반응기를 배열을 한 것이 병렬로 반응기를 배열한 것보다 높은 탈질효율을 보였으며, 질산성 질소 농도를 1000mg/L 까지 상승시켰을 때에는 직렬로 배열을 한 반응기는 60%, 병렬로 배열한 것은 50%의 탈질효율을 나타내어 배치에 따라 고농도의 질소를 처리할 수 있음을 알 수 있었다. This study was designed to evaluate the feasibility of using novel sulfur-alkalinity material (JSC Pellet) as packing matrix instead of the traditional sulfur and limestone for sulfur oxidizing denitrification (SOD) process. To investigate the optimal conditions for the performance of this process, anoxic conditions was conducted for the treatment of the synthetic wastewater and real wastewater.
대청호수계에서 TOC - HANDAI 법에 의한 유해화학물질의 생분해성 평가
강호(Ho Kang),왕창근(Chang Keun Wang),이진흥(Jin Hong Lee),진창숙(Chang Suk Jin),김은희(Eun Hee Kim) 한국물환경학회 1999 한국물환경학회지 Vol.15 No.2
Biodegradability test for several hazardous chemicals found in the watershed of Daechung reservoir was investigated by using TOC-HANDAI method that is a combined technology of River Die-away test and HANDAI method. Aniline and phenol were easily mineralized by natural water microcosm and their initial degradation rates of samples from Daechung reservoir were much faster than those from the main streams of Kum rivers. This was probably due to the numbers and the activities of participated microorganisms during their respective degradation. It is obvious that the metabolic pathways of both chemicals were different, showing that phenol started degradation immediately without any adaptation period. Bispenol A(BPA) at each sampling points was appeared to be mineralized 68∼89% of initial TOC concentration by natural water microcosm. BPA seems more recalcitrant against biodegradation than simple aromatic compounds such as aniline and phenol in natural water environments. Moreover, the remaining TOC components in BPA biodegradation considered to be refractory metabolites of BPA. Consequently it is likely that BPA showed semi-recalcitrant while aniline and phenol were biodegradable compounds in the watershed of Daechung reservoir.