Jeong, Dawoon Lee, Chang-Ha Lee, Seockheon Bae, Hyokwan 2024-01-19T19:01:24Z 2024-01-19T19:01:24Z 2021-09-05 2019-11 2005-8624 https://pubs.kist.re.kr/handle/201004/119400 The influence of chlorine on marine bacterial communities was examined in this study. A non-chlorine-adapted marine bacterial community (NCAM) and a chlorine-adapted bacterial community (CAM, bacterial community treated with 0.2 mg-Cl-2/L chlorine) were cultivated for 1 month. A distinct difference was observed between the NCAM and CAM, which shared only eight operational taxonomic units (OTUs), corresponding to 13.1% of the total number of identified OTUs. This result suggested that chlorine was responsible for the changes in the marine bacterial communities. Kordiimonas aquimaris was found to be a chlorine-resistant marine bacterium. The effect of intermittent chlorination on the two marine biofilm communities formed on the reverse osmosis (RO) membrane surface was investigated using various chlorine concentrations (0, 0.2, 0.4, 0.6 and 0.8 mg Cl-2/L). Although the average number of adherent marine bacteria on the RO membrane over a period of 7 weeks decreased with increasing chlorine concentration, disinfection efficiencies showed substantial fluctuations throughout the experiment. This is due to chlorine depletion that occurs during intermittent chlorination. These results suggest that intermittent chlorination is not an effective disinfection strategy to control biofilm formation. English TECHNO-PRESS DRINKING-WATER SEAWATER DESALINATION COMMUNITY STRUCTURE RO MEMBRANES SP NOV. BACTERIAL PRETREATMENT RESISTANCE DISINFECTANT DIVERSITY Intermittent chlorination shifts the marine biofilm population on reverse osmosis membranes Article 10.12989/mwt.2019.10.6.395 1 MEMBRANE AND WATER TREATMENT, v.10, no.6, pp.395 - 404 MEMBRANE AND WATER TREATMENT 10 6 395 404 scie scopus 000499106600001 2-s2.0-85089692089 Engineering, Chemical Water Resources Engineering Water Resources Article DRINKING-WATER SEAWATER DESALINATION COMMUNITY STRUCTURE RO MEMBRANES SP NOV. BACTERIAL PRETREATMENT RESISTANCE DISINFECTANT DIVERSITY marine bacterial community intermittent chlorination terminal restriction fragment length polymorphism (T-RFLP) marine biofilm qPCR statistical analysis