Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/135216
Title: DEVELOPMENT OF NEW NANOFILTRATION MEMBRANES
Authors: THONG ZHIWEI
Keywords: Nanofiltration,heavy metals removal, phosphorus recovery, size exclusion mechanism, Donnan exclusion mechanism,
Issue Date: 13-Oct-2016
Source: THONG ZHIWEI (2016-10-13). DEVELOPMENT OF NEW NANOFILTRATION MEMBRANES. ScholarBank@NUS Repository.
Abstract: Faced with increasingly stringent regulations governing the discharge of wastewater containing heavy metal ions, various industries are demanding more efficient and effective treatment methods. Among the various existing methods, nanofiltration (NF) has been proven to be a feasible and promising option. However, the development of new NF membrane materials and applications is constantly required for the advancement of this technology. To this end, in the first part of this dissertation, the development of a new composite NF membrane which comprises of a pentablock copolymer selective layer for the removal of heavy metal ions is explored. In the second part of this dissertation, the conceptual demonstration of the recovery of phosphates from sewage sludge to address the rapid depletion of mineral phosphorus has been carried out. A NF membrane that is desirable for the phosphorus recovery has been fabricated by effectively controlled the interfacial polymerization between polyethyleneimine and TMC on a porous polyethersulfone ultrafiltration membrane substrate.
URI: http://scholarbank.nus.edu.sg/handle/10635/135216
Appears in Collections:Master's Theses (Open)

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