caa a22 4500 606169695 CHVBK 20210128100713.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s10098-014-0836-2 doi (NATIONALLICENCE)springer-10.1007/s10098-014-0836-2 Combining activated sludge process with membrane separation to obtain recyclable quality water from paper mill effluent [Elektronische Daten] [Sudheer Shukla, Vivek Kumar, Tuan Van Doan, Keunje Yoo, Younkyung Kim, Joonhong Park] The present study was carried out for the treatment of paper mill effluent using combination of activated sludge process and membrane separation. An integrated paper mill employing OCEOPHH sequence (oxidation, chlorination, alkali extraction re-enforced by oxygen and peroxide, hypo-1, and hypo-2) for the bleaching of hardwood pulp was selected for the study. The purpose of this work was to examine the water quality and membrane performance when combining activated sludge process with different membrane separation processes in series. Pollutant removal including adsorbable organic halides (AOX) was compared among different treatment combinations; (i) ASP+microfiltration (MF), (ii) ASP +MF+ultrafiltration (UF), (iii) ASP +MF+UF+nanofiltration (NF), and (iv) ASP +MF+UF+NF+reverse osmosis (RO) to select the optimal treatment scheme for water recycling in the paper mill. Different initial inlet pressures were used for the UF and NF (6.8, 10.3, and 13.7bar) and for RO (10.3, 13.7, and 17.2) The retentate from each membrane was recycled back to the feed and retreated until the inlet pressure increased to the maximum cut-off pressure for each membrane. After separation, 100% total suspended solids, total dissolved solids, color removal and 94.2% chemical oxygen demand, and 86% AOX removal was observed. This study suggests the potential application of the combination of membrane separation with activated sludge process for recycling water in the paper industry. Springer-Verlag Berlin Heidelberg, 2014 Activated sludge process nationallicence Adsorbable organic halides nationallicence Membrane separation nationallicence Paper industry nationallicence Paper mill effluent nationallicence Shukla Sudheer Department of Civil and Environmental Engineering, Yonsei University, 120-749, Seoul, Republic of Korea aut Kumar Vivek Department of Paper Technology, Indian Institute of Technology, 247001, Roorkee, India aut Van Doan Tuan Department of Civil and Environmental Engineering, Yonsei University, 120-749, Seoul, Republic of Korea aut Yoo Keunje Department of Civil and Environmental Engineering, Yonsei University, 120-749, Seoul, Republic of Korea aut Kim Younkyung Department of Civil and Environmental Engineering, Yonsei University, 120-749, Seoul, Republic of Korea aut Park Joonhong Department of Civil and Environmental Engineering, Yonsei University, 120-749, Seoul, Republic of Korea aut Clean Technologies and Environmental Policy Springer Berlin Heidelberg 17/3(2015-03-01), 781-788 1618-954X 17:3<781 2015 17 10098 https://doi.org/10.1007/s10098-014-0836-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10098-014-0836-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shukla Sudheer Department of Civil and Environmental Engineering, Yonsei University, 120-749, Seoul, Republic of Korea aut NATIONALLICENCE 700 1- Kumar Vivek Department of Paper Technology, Indian Institute of Technology, 247001, Roorkee, India aut NATIONALLICENCE 700 1- Van Doan Tuan Department of Civil and Environmental Engineering, Yonsei University, 120-749, Seoul, Republic of Korea aut NATIONALLICENCE 700 1- Yoo Keunje Department of Civil and Environmental Engineering, Yonsei University, 120-749, Seoul, Republic of Korea aut NATIONALLICENCE 700 1- Kim Younkyung Department of Civil and Environmental Engineering, Yonsei University, 120-749, Seoul, Republic of Korea aut NATIONALLICENCE 700 1- Park Joonhong Department of Civil and Environmental Engineering, Yonsei University, 120-749, Seoul, Republic of Korea aut NATIONALLICENCE 773 0- Clean Technologies and Environmental Policy Springer Berlin Heidelberg 17/3(2015-03-01), 781-788 1618-954X 17:3<781 2015 17 10098