Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/39865
Title: Operation and optimization of membrane distillation bioreactor
Authors: Kwan, Joseph Zheng Xin.
Keywords: DRNTU::Engineering::Environmental engineering::Water treatment
Issue Date: 2010
Abstract: The operation and optimization of a membrane distillation bioreactor (MDBR) was investigated in this project. In the MDBR studied, a submerged membrane distillation was incorporated into a bioreactor operating at elevated temperature. Since rejection is based on an evaporation mechanism, the retention time of non-volatile soluble and small organics in the submerged MDBR is independent of the hydraulic retention time (mainly water and volatiles). A high-quality permeate was obtained in this one-step compact water reclamation process. The main focus of this project is to optimise the operation of a lab-scale MDBR setup, specifically by examining salt accumulation rate and its effect on the bioprocess in the MDBR system. The setup managed to produce a stable flux of approximately 6 L/m2•hr over 6 days. EPS, MLSS, SOUR, TOC and other parameters were measured. It was found that that MDBR would have the resilience to operate in higher salt concentrations although further studies will be needed to investigate the low TOC removal efficiency of the setup’s bioreactor.
URI: http://hdl.handle.net/10356/39865
Rights: Nanyang Technological University
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:CEE Student Reports (FYP/IA/PA/PI)

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