Cho, J Song, KG Yun, H Ahn, KH Kim, JY Chung, TH 2024-01-21T04:33:36Z 2024-01-21T04:33:36Z 2021-09-01 2005-09 0273-1223 https://pubs.kist.re.kr/handle/201004/136198 The objective of this study is to investigate solids concentration and extracellular polymeric substance (EPS) effects on the membrane fouling in the submerged membrane bioreactor. The relationship between the solids retention time (SRT) and the amount of EPS is observed in three lab-scale MBRs. Additionally, the EPS effect on membrane fouling is quantified by calculating the specific cake resistance (a) using an unstirred batch cell test. By observing the sludge over a long period under various SRT scenarios, a wide range of EPS and membrane fouling data is obtained. These observations provide sufficient evidence of the functional relationship between SRT, EPS and alpha. As SRT decreases, the amount of EPS bound in sludge floc becomes higher in the high MLSS condition (> 5,000 mg/L). The amount of EPS in the sludge floc has positive influence on alpha. A sigmoid trend between EPS and alpha is observed and the functional relationship obtained by dimensional analysis is consistent with the experimental results. English IWA PUBLISHING ACTIVATED-SLUDGE SYSTEM SOLUBLE MICROBIAL PRODUCTS FILTRATION CHARACTERISTICS EXTRACELLULAR POLYMERS WASTE-WATER MICROFILTRATION SEPARATION ULTRAFILTRATION REUSE Quantitative analysis of biological effect on membrane fouling in submerged membrane bioreactor Article 10.2166/wst.2005.0616 1 WATER SCIENCE AND TECHNOLOGY, v.51, no.6-7, pp.9 - 18 WATER SCIENCE AND TECHNOLOGY 51 6-7 9 18 scie scopus 000230054700003 2-s2.0-21244439448 Engineering, Environmental Environmental Sciences Water Resources Engineering Environmental Sciences & Ecology Water Resources Article; Proceedings Paper ACTIVATED-SLUDGE SYSTEM SOLUBLE MICROBIAL PRODUCTS FILTRATION CHARACTERISTICS EXTRACELLULAR POLYMERS WASTE-WATER MICROFILTRATION SEPARATION ULTRAFILTRATION REUSE bioreactor EPS fouling membrane SRT