@article{scholars6446,
          number = {59},
         journal = {Desalination and Water Treatment},
            year = {2016},
            note = {cited By 2},
           title = {Bio-physical removal of heavy metal from aqueous solution},
           pages = {28932--28938},
             doi = {10.1080/19443994.2016.1193768},
       publisher = {Taylor and Francis Inc.},
          volume = {57},
            issn = {19443994},
        keywords = {aqueous solution; bioreactor; concentration (composition); heavy metal; microbial community; performance assessment; water treatment; zinc},
          author = {Kutty, S. R. M. and Ezechi, E. H. and Khaw, S. G. and Lai, C. L. and Isa, M. H.},
        abstract = {The aim of this study was to compare the performance of a suspended growth bioreactor and a combined bio-physical bioreactor for Zn2+ removal from aqueous solution. Two identical bioreactors (8.5{\^A} L each) were operated at a fixed HRT of 29.1{\^A} h. The suspended growth bioreactor was used as the control reactor and contained only sludge. The bio-physical bioreactor contains sludge and a low-cost adsorbent derived from groundwater treatment plant sludge. The influent Zn2+ concentration was varied from 0.5 to 15{\^A} mg/L in 8 experimental phases. Influent and effluent Zn2+ concentration was monitored daily. Phase 1 (day 1{\^a}??15) and phase 2 (day 16{\^a}??29) were used as acclimation period for both bioreactors, respectively. Results show that Zn2+ removal increased with increasing influent Zn2+ concentration from 0.5 to 1.0{\^A} mg/L (phases 3{\^a}??4) but fluctuated thereafter for the suspended growth bioreactor. Zn2+ removal in the bio-physical bioreactor increased with increasing influent Zn2+ concentration from 0.5 to 10{\^A} mg/L (phases 3{\^a}??7) and decreased with further increase in influent Zn2+ concentration to 15{\^A} mg/L (phase 8). The effluent Zn2+ concentration in phase 8 for the suspended growth and the bio-physical bioreactors were 58.7 and 90, respectively. The higher removal of Zn2+ in the bio-physical bioreactor was due to heavy metal tolerance and the resistance in heavy metal toxicity on the microbial community of the combined system. {\^A}{\copyright} 2016 Balaban Desalination Publications. All rights reserved.},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84975129664&doi=10.1080\%2f19443994.2016.1193768&partnerID=40&md5=284db68caac41fd585f7e9ba1b94c0b8}
}