하준수 박후원 김성원 윤예진 유성환 이상협 2024-01-20T22:35:18Z 2024-01-20T22:35:18Z 2022-01-10 2008-09 2289-0971 https://pubs.kist.re.kr/handle/201004/133166 Textile industry has been recognized as an important pollution source due to its consumption of large volumes of water and chemicals. Textile wastewater contains very diverse chemicals in types and composition, among them the presence of dyes is highly visible and undesirable. In spite of these problems, there has not been a proper control for the wastewater because many dyes are difficult to be degraded or decolorized due to their complex structure and synthetic characteristics. This study has been progressed to evaluate more easily the potential decolorization of advanced treatment processes. It has been surveyed with the Y textile complex wastewater treatment plant, the raw wastewater has appeared very difficult biodegradability by 4.7 of CODcr/BOD5 and 1,158.9 degree of color. In view of CODcr fractions, biodegradable COD portion was 46.4%, colloidal COD and real soluble COD was 45.3% and 31.5% each others. From research on unit processes, the degradable coefficient (k) became from 0.065 to 0.125 d-1 by the processes, the decolorization appeared best efficiency by 30.1% (458.4 degree) in pre-ozone process. On the effluent from the biological process, the filterable CODcr became 129.3 mg/L, the biodegradable portion appeared 64.7% (83.6 mg/L), and the fixed dissolved solid (FDS), non-reactivity (NR), appeared very heavy portion by 80.5% (1,659.0 mg/L). Korean 한국물환경학회 염색폐수 처리공정에서 COD fraction의 변화와 색도처리 Evaluating the Potential Decolorization by Testing COD Fractions in Textile Wastewater Treatment Processes Article 2 한국물환경학회지, v.24, no.5, pp.537 - 542 한국물환경학회지 24 5 537 542 kci ART001283558 Biodegradable coefficient COD fraction Color Textile industry Ultimate BOD Biodegradable coefficient COD fraction Color Textile industry Ultimate BOD