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북한강 의암호 지류의 수질향상을 위한 하천수 정화기술 개발 : 하천수의 한외여과 특성
박진용,이진원 ( Jin Yong Park,Jin Won Lee ) 한국물환경학회 1998 한국물환경학회지 Vol.14 No.2
To develop the lake water clean technology by ultrafiltration, the performances of polysulfone and polyacrylonitrile hollow-fiber type modules (Koch Inc.) were investigated using dextran and polyethylene glycol solution, and we found the optimum operation conditions of this ultrafiltration system. Then, the ultrafiltration was operated using water of Gongjee-stream, that was the branch of Euam-lake in Bukhanriver. As the results, the molecular weight cutoffs confirmed in these tests were a little higher than those suggested by the manufacturers, and the optimum transmembrane pressure were 18.5psi in this system. In the ultrafiltration of lake water the rejection rate of turbidity was above 94% and that of BOD, was 24∼50%. However, the rejection rate of TS and TDS were low values, that were 19∼34% and 10∼17%, respectively. Therefore, the suitable module investigated in this study seemed to be polysulfone PM10, which showed the highest rejection rate of BOD_5.
활성탄을 참가한 연속 회분식 반응조(SBR)운전에 미치는 중금속 및 Phenol 의 영향
이상훈,이진원,김상용,박진용,박철환,임지훈,이용면 한국화학공학회 2000 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.38 No.2
본 연구에서는 연속 회분식 반응조(sequencing batch reactor, SBR) 활성탄을 첨가한 공정을 대상으로 삼았다. 활성탄이 첨가된 연속 회분식 반응조의 유기물 제거와 중금속이나 난분해성 물질이 미치는 영향을 파악하고자, 3종류의 입상 활성탄을 대상으로 실험을 하였다. SCOD(soluble chemical oxygen demand) 감소 효율에 대하여 살펴보았으며, 흡착 등온식(adsorption isotherm)에 의한 이론적 흡착량(adsorbed loading)과 실제 감소량(apparent loading)의 비교로 생물학적 활성(biological activity)의 시너지 효과(Synergistic effects)를 확인하였다. 활성탄-연속 회분식 반응조 공정은 연속 회분식 반응조만을 운전하였을 때보다 약 16%의 처리 효율이 증가하였는데, Freundlich 흡착 등온식에 의한 이론적 흡착량과 실제 감소된 SCOD량을 비교함으로서, 활성탄 첨가 공정의 처리 효율 증가가 단지 활성탄 흡착량만이 아니고, 생물학적 활성의 시너지 효과가 있음을 증명하였다. 중금속이나 난분해성 물질이 유입되었을 경우의 연속 회분식 반응조에 있어서의 저해(inhibition)현상을 살펴보았으며, 활성탄을 첨가하였을 때 이러한 저해 영향을 감소시키는 효과를 정량적으로 측정하였다. Pb, Cd, Cr, phenol을 저해제(inhibitor)로서 실험하였는데, Pb가 10㎎/L인 생활하수에 활성탄(PK1-3)을 500 ㎎/L로 주입하였을 경우에는 주입하지 않은 경우보다 처리율이 32.6% 증가되었고, Cd의 경우는 27.2%, Cr의 경우는 22.3%, phenol의 경우는 9.4%의 처리효율이 각각 증가되었다. The process of sequencing batch reactor(SBR) added the activated carbon were studied. To investigate the influence of the activated carbon on the treatment of organic materials and the effects of heavy metals on the process, three different kinds of granular activated carbons(GAC) were tested. The decrease of SCOD(soluble chemical oxygen demand) was measured at the different concentrations of the activated carbon. Synergistic effects of GAC on the biological activity in the SBR were confirmed from the data comparing adsorbed loadings with apparent loadings. When SBR was operated with GAC, the efficiency of wastewater treatment increased lb%. By comparing the adsorped amount of SCOD estimated from Freundlich isotherm and the decrease of apparent loading, biological synergistic effect was confirmed. The inhibition of SBR performance from heavy metals or toxic chemicals could be reduced when GAC was added into the SBR process. Pb, Cd, Cr, and phenol were tested as typical inhibitors. When 10 ㎎/L, inhibitor was introduced into the SBR process which includes 500 ㎎/L GAC, the efficiency was increased as 32.6%, 27.2%, 22.3%, and 9.4%, respectively.
Effective Textile Wastewater Treatment: Pilot-Scale Study
Park, Chul-Hwan,Kim, Tak-Hyun,Lee, Jin-Won,Kim, Seung-Wook,Kim, Sang-Yong 호서대학교 반도체제조장비국산화연구센터 2001 반도체장비학술심포지움 Vol.2001 No.-
Selected microbes was applied to the treatment of textile wastewater with support particles.To enhance the treatment efficiency, biological treatment was achieved as first process.Wastewater with a COD of 870 ppm and color of 1340 PtCo unit was continuously treated in a 1.8 ton capacity reactor.In the case of combined processes, the effluent COD concentration and color were 40 ppm (95.4% reduction) and 20 PtCo unit (98.5% reduction).